# -*- coding: utf-8 -*-
# Copyright 2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import os

# try/except added for compatibility with python < 3.8
try:
    from unittest import mock
    from unittest.mock import AsyncMock  # pragma: NO COVER
except ImportError:  # pragma: NO COVER
    import mock

from collections.abc import Iterable
import json
import math

from google.api_core import (
    future,
    gapic_v1,
    grpc_helpers,
    grpc_helpers_async,
    path_template,
)
from google.api_core import client_options
from google.api_core import exceptions as core_exceptions
from google.api_core import extended_operation  # type: ignore
import google.auth
from google.auth import credentials as ga_credentials
from google.auth.exceptions import MutualTLSChannelError
from google.oauth2 import service_account
from google.protobuf import json_format
import grpc
from grpc.experimental import aio
from proto.marshal.rules import wrappers
from proto.marshal.rules.dates import DurationRule, TimestampRule
import pytest
from requests import PreparedRequest, Request, Response
from requests.sessions import Session

from google.cloud.compute_v1.services.disks import DisksClient, pagers, transports
from google.cloud.compute_v1.types import compute


def client_cert_source_callback():
    return b"cert bytes", b"key bytes"


# If default endpoint is localhost, then default mtls endpoint will be the same.
# This method modifies the default endpoint so the client can produce a different
# mtls endpoint for endpoint testing purposes.
def modify_default_endpoint(client):
    return (
        "foo.googleapis.com"
        if ("localhost" in client.DEFAULT_ENDPOINT)
        else client.DEFAULT_ENDPOINT
    )


def test__get_default_mtls_endpoint():
    api_endpoint = "example.googleapis.com"
    api_mtls_endpoint = "example.mtls.googleapis.com"
    sandbox_endpoint = "example.sandbox.googleapis.com"
    sandbox_mtls_endpoint = "example.mtls.sandbox.googleapis.com"
    non_googleapi = "api.example.com"

    assert DisksClient._get_default_mtls_endpoint(None) is None
    assert DisksClient._get_default_mtls_endpoint(api_endpoint) == api_mtls_endpoint
    assert (
        DisksClient._get_default_mtls_endpoint(api_mtls_endpoint) == api_mtls_endpoint
    )
    assert (
        DisksClient._get_default_mtls_endpoint(sandbox_endpoint)
        == sandbox_mtls_endpoint
    )
    assert (
        DisksClient._get_default_mtls_endpoint(sandbox_mtls_endpoint)
        == sandbox_mtls_endpoint
    )
    assert DisksClient._get_default_mtls_endpoint(non_googleapi) == non_googleapi


@pytest.mark.parametrize(
    "client_class,transport_name",
    [
        (DisksClient, "rest"),
    ],
)
def test_disks_client_from_service_account_info(client_class, transport_name):
    creds = ga_credentials.AnonymousCredentials()
    with mock.patch.object(
        service_account.Credentials, "from_service_account_info"
    ) as factory:
        factory.return_value = creds
        info = {"valid": True}
        client = client_class.from_service_account_info(info, transport=transport_name)
        assert client.transport._credentials == creds
        assert isinstance(client, client_class)

        assert client.transport._host == (
            "compute.googleapis.com:443"
            if transport_name in ["grpc", "grpc_asyncio"]
            else "https://compute.googleapis.com"
        )


@pytest.mark.parametrize(
    "transport_class,transport_name",
    [
        (transports.DisksRestTransport, "rest"),
    ],
)
def test_disks_client_service_account_always_use_jwt(transport_class, transport_name):
    with mock.patch.object(
        service_account.Credentials, "with_always_use_jwt_access", create=True
    ) as use_jwt:
        creds = service_account.Credentials(None, None, None)
        transport = transport_class(credentials=creds, always_use_jwt_access=True)
        use_jwt.assert_called_once_with(True)

    with mock.patch.object(
        service_account.Credentials, "with_always_use_jwt_access", create=True
    ) as use_jwt:
        creds = service_account.Credentials(None, None, None)
        transport = transport_class(credentials=creds, always_use_jwt_access=False)
        use_jwt.assert_not_called()


@pytest.mark.parametrize(
    "client_class,transport_name",
    [
        (DisksClient, "rest"),
    ],
)
def test_disks_client_from_service_account_file(client_class, transport_name):
    creds = ga_credentials.AnonymousCredentials()
    with mock.patch.object(
        service_account.Credentials, "from_service_account_file"
    ) as factory:
        factory.return_value = creds
        client = client_class.from_service_account_file(
            "dummy/file/path.json", transport=transport_name
        )
        assert client.transport._credentials == creds
        assert isinstance(client, client_class)

        client = client_class.from_service_account_json(
            "dummy/file/path.json", transport=transport_name
        )
        assert client.transport._credentials == creds
        assert isinstance(client, client_class)

        assert client.transport._host == (
            "compute.googleapis.com:443"
            if transport_name in ["grpc", "grpc_asyncio"]
            else "https://compute.googleapis.com"
        )


def test_disks_client_get_transport_class():
    transport = DisksClient.get_transport_class()
    available_transports = [
        transports.DisksRestTransport,
    ]
    assert transport in available_transports

    transport = DisksClient.get_transport_class("rest")
    assert transport == transports.DisksRestTransport


@pytest.mark.parametrize(
    "client_class,transport_class,transport_name",
    [
        (DisksClient, transports.DisksRestTransport, "rest"),
    ],
)
@mock.patch.object(
    DisksClient, "DEFAULT_ENDPOINT", modify_default_endpoint(DisksClient)
)
def test_disks_client_client_options(client_class, transport_class, transport_name):
    # Check that if channel is provided we won't create a new one.
    with mock.patch.object(DisksClient, "get_transport_class") as gtc:
        transport = transport_class(credentials=ga_credentials.AnonymousCredentials())
        client = client_class(transport=transport)
        gtc.assert_not_called()

    # Check that if channel is provided via str we will create a new one.
    with mock.patch.object(DisksClient, "get_transport_class") as gtc:
        client = client_class(transport=transport_name)
        gtc.assert_called()

    # Check the case api_endpoint is provided.
    options = client_options.ClientOptions(api_endpoint="squid.clam.whelk")
    with mock.patch.object(transport_class, "__init__") as patched:
        patched.return_value = None
        client = client_class(transport=transport_name, client_options=options)
        patched.assert_called_once_with(
            credentials=None,
            credentials_file=None,
            host="squid.clam.whelk",
            scopes=None,
            client_cert_source_for_mtls=None,
            quota_project_id=None,
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience=None,
        )

    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT is
    # "never".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
        with mock.patch.object(transport_class, "__init__") as patched:
            patched.return_value = None
            client = client_class(transport=transport_name)
            patched.assert_called_once_with(
                credentials=None,
                credentials_file=None,
                host=client.DEFAULT_ENDPOINT,
                scopes=None,
                client_cert_source_for_mtls=None,
                quota_project_id=None,
                client_info=transports.base.DEFAULT_CLIENT_INFO,
                always_use_jwt_access=True,
                api_audience=None,
            )

    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT is
    # "always".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
        with mock.patch.object(transport_class, "__init__") as patched:
            patched.return_value = None
            client = client_class(transport=transport_name)
            patched.assert_called_once_with(
                credentials=None,
                credentials_file=None,
                host=client.DEFAULT_MTLS_ENDPOINT,
                scopes=None,
                client_cert_source_for_mtls=None,
                quota_project_id=None,
                client_info=transports.base.DEFAULT_CLIENT_INFO,
                always_use_jwt_access=True,
                api_audience=None,
            )

    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT has
    # unsupported value.
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
        with pytest.raises(MutualTLSChannelError):
            client = client_class(transport=transport_name)

    # Check the case GOOGLE_API_USE_CLIENT_CERTIFICATE has unsupported value.
    with mock.patch.dict(
        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
    ):
        with pytest.raises(ValueError):
            client = client_class(transport=transport_name)

    # Check the case quota_project_id is provided
    options = client_options.ClientOptions(quota_project_id="octopus")
    with mock.patch.object(transport_class, "__init__") as patched:
        patched.return_value = None
        client = client_class(client_options=options, transport=transport_name)
        patched.assert_called_once_with(
            credentials=None,
            credentials_file=None,
            host=client.DEFAULT_ENDPOINT,
            scopes=None,
            client_cert_source_for_mtls=None,
            quota_project_id="octopus",
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience=None,
        )
    # Check the case api_endpoint is provided
    options = client_options.ClientOptions(
        api_audience="https://language.googleapis.com"
    )
    with mock.patch.object(transport_class, "__init__") as patched:
        patched.return_value = None
        client = client_class(client_options=options, transport=transport_name)
        patched.assert_called_once_with(
            credentials=None,
            credentials_file=None,
            host=client.DEFAULT_ENDPOINT,
            scopes=None,
            client_cert_source_for_mtls=None,
            quota_project_id=None,
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience="https://language.googleapis.com",
        )


@pytest.mark.parametrize(
    "client_class,transport_class,transport_name,use_client_cert_env",
    [
        (DisksClient, transports.DisksRestTransport, "rest", "true"),
        (DisksClient, transports.DisksRestTransport, "rest", "false"),
    ],
)
@mock.patch.object(
    DisksClient, "DEFAULT_ENDPOINT", modify_default_endpoint(DisksClient)
)
@mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "auto"})
def test_disks_client_mtls_env_auto(
    client_class, transport_class, transport_name, use_client_cert_env
):
    # This tests the endpoint autoswitch behavior. Endpoint is autoswitched to the default
    # mtls endpoint, if GOOGLE_API_USE_CLIENT_CERTIFICATE is "true" and client cert exists.

    # Check the case client_cert_source is provided. Whether client cert is used depends on
    # GOOGLE_API_USE_CLIENT_CERTIFICATE value.
    with mock.patch.dict(
        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
    ):
        options = client_options.ClientOptions(
            client_cert_source=client_cert_source_callback
        )
        with mock.patch.object(transport_class, "__init__") as patched:
            patched.return_value = None
            client = client_class(client_options=options, transport=transport_name)

            if use_client_cert_env == "false":
                expected_client_cert_source = None
                expected_host = client.DEFAULT_ENDPOINT
            else:
                expected_client_cert_source = client_cert_source_callback
                expected_host = client.DEFAULT_MTLS_ENDPOINT

            patched.assert_called_once_with(
                credentials=None,
                credentials_file=None,
                host=expected_host,
                scopes=None,
                client_cert_source_for_mtls=expected_client_cert_source,
                quota_project_id=None,
                client_info=transports.base.DEFAULT_CLIENT_INFO,
                always_use_jwt_access=True,
                api_audience=None,
            )

    # Check the case ADC client cert is provided. Whether client cert is used depends on
    # GOOGLE_API_USE_CLIENT_CERTIFICATE value.
    with mock.patch.dict(
        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
    ):
        with mock.patch.object(transport_class, "__init__") as patched:
            with mock.patch(
                "google.auth.transport.mtls.has_default_client_cert_source",
                return_value=True,
            ):
                with mock.patch(
                    "google.auth.transport.mtls.default_client_cert_source",
                    return_value=client_cert_source_callback,
                ):
                    if use_client_cert_env == "false":
                        expected_host = client.DEFAULT_ENDPOINT
                        expected_client_cert_source = None
                    else:
                        expected_host = client.DEFAULT_MTLS_ENDPOINT
                        expected_client_cert_source = client_cert_source_callback

                    patched.return_value = None
                    client = client_class(transport=transport_name)
                    patched.assert_called_once_with(
                        credentials=None,
                        credentials_file=None,
                        host=expected_host,
                        scopes=None,
                        client_cert_source_for_mtls=expected_client_cert_source,
                        quota_project_id=None,
                        client_info=transports.base.DEFAULT_CLIENT_INFO,
                        always_use_jwt_access=True,
                        api_audience=None,
                    )

    # Check the case client_cert_source and ADC client cert are not provided.
    with mock.patch.dict(
        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
    ):
        with mock.patch.object(transport_class, "__init__") as patched:
            with mock.patch(
                "google.auth.transport.mtls.has_default_client_cert_source",
                return_value=False,
            ):
                patched.return_value = None
                client = client_class(transport=transport_name)
                patched.assert_called_once_with(
                    credentials=None,
                    credentials_file=None,
                    host=client.DEFAULT_ENDPOINT,
                    scopes=None,
                    client_cert_source_for_mtls=None,
                    quota_project_id=None,
                    client_info=transports.base.DEFAULT_CLIENT_INFO,
                    always_use_jwt_access=True,
                    api_audience=None,
                )


@pytest.mark.parametrize("client_class", [DisksClient])
@mock.patch.object(
    DisksClient, "DEFAULT_ENDPOINT", modify_default_endpoint(DisksClient)
)
def test_disks_client_get_mtls_endpoint_and_cert_source(client_class):
    mock_client_cert_source = mock.Mock()

    # Test the case GOOGLE_API_USE_CLIENT_CERTIFICATE is "true".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
        mock_api_endpoint = "foo"
        options = client_options.ClientOptions(
            client_cert_source=mock_client_cert_source, api_endpoint=mock_api_endpoint
        )
        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source(
            options
        )
        assert api_endpoint == mock_api_endpoint
        assert cert_source == mock_client_cert_source

    # Test the case GOOGLE_API_USE_CLIENT_CERTIFICATE is "false".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "false"}):
        mock_client_cert_source = mock.Mock()
        mock_api_endpoint = "foo"
        options = client_options.ClientOptions(
            client_cert_source=mock_client_cert_source, api_endpoint=mock_api_endpoint
        )
        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source(
            options
        )
        assert api_endpoint == mock_api_endpoint
        assert cert_source is None

    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "never".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
        assert api_endpoint == client_class.DEFAULT_ENDPOINT
        assert cert_source is None

    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "always".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
        assert api_endpoint == client_class.DEFAULT_MTLS_ENDPOINT
        assert cert_source is None

    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "auto" and default cert doesn't exist.
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
        with mock.patch(
            "google.auth.transport.mtls.has_default_client_cert_source",
            return_value=False,
        ):
            api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
            assert api_endpoint == client_class.DEFAULT_ENDPOINT
            assert cert_source is None

    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "auto" and default cert exists.
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
        with mock.patch(
            "google.auth.transport.mtls.has_default_client_cert_source",
            return_value=True,
        ):
            with mock.patch(
                "google.auth.transport.mtls.default_client_cert_source",
                return_value=mock_client_cert_source,
            ):
                (
                    api_endpoint,
                    cert_source,
                ) = client_class.get_mtls_endpoint_and_cert_source()
                assert api_endpoint == client_class.DEFAULT_MTLS_ENDPOINT
                assert cert_source == mock_client_cert_source


@pytest.mark.parametrize(
    "client_class,transport_class,transport_name",
    [
        (DisksClient, transports.DisksRestTransport, "rest"),
    ],
)
def test_disks_client_client_options_scopes(
    client_class, transport_class, transport_name
):
    # Check the case scopes are provided.
    options = client_options.ClientOptions(
        scopes=["1", "2"],
    )
    with mock.patch.object(transport_class, "__init__") as patched:
        patched.return_value = None
        client = client_class(client_options=options, transport=transport_name)
        patched.assert_called_once_with(
            credentials=None,
            credentials_file=None,
            host=client.DEFAULT_ENDPOINT,
            scopes=["1", "2"],
            client_cert_source_for_mtls=None,
            quota_project_id=None,
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience=None,
        )


@pytest.mark.parametrize(
    "client_class,transport_class,transport_name,grpc_helpers",
    [
        (DisksClient, transports.DisksRestTransport, "rest", None),
    ],
)
def test_disks_client_client_options_credentials_file(
    client_class, transport_class, transport_name, grpc_helpers
):
    # Check the case credentials file is provided.
    options = client_options.ClientOptions(credentials_file="credentials.json")

    with mock.patch.object(transport_class, "__init__") as patched:
        patched.return_value = None
        client = client_class(client_options=options, transport=transport_name)
        patched.assert_called_once_with(
            credentials=None,
            credentials_file="credentials.json",
            host=client.DEFAULT_ENDPOINT,
            scopes=None,
            client_cert_source_for_mtls=None,
            quota_project_id=None,
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience=None,
        )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.AddResourcePoliciesDiskRequest,
        dict,
    ],
)
def test_add_resource_policies_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_add_resource_policies_request_resource"] = {
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"]
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.add_resource_policies(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_add_resource_policies_rest_required_fields(
    request_type=compute.AddResourcePoliciesDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).add_resource_policies._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).add_resource_policies._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.add_resource_policies(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_add_resource_policies_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.add_resource_policies._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "disksAddResourcePoliciesRequestResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_add_resource_policies_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_add_resource_policies"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_add_resource_policies"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.AddResourcePoliciesDiskRequest.pb(
            compute.AddResourcePoliciesDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.AddResourcePoliciesDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.add_resource_policies(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_add_resource_policies_rest_bad_request(
    transport: str = "rest", request_type=compute.AddResourcePoliciesDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_add_resource_policies_request_resource"] = {
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"]
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.add_resource_policies(request)


def test_add_resource_policies_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_add_resource_policies_request_resource=compute.DisksAddResourcePoliciesRequest(
                resource_policies=["resource_policies_value"]
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.add_resource_policies(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/addResourcePolicies"
            % client.transport._host,
            args[1],
        )


def test_add_resource_policies_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.add_resource_policies(
            compute.AddResourcePoliciesDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_add_resource_policies_request_resource=compute.DisksAddResourcePoliciesRequest(
                resource_policies=["resource_policies_value"]
            ),
        )


def test_add_resource_policies_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.AddResourcePoliciesDiskRequest,
        dict,
    ],
)
def test_add_resource_policies_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_add_resource_policies_request_resource"] = {
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"]
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.add_resource_policies_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_add_resource_policies_unary_rest_required_fields(
    request_type=compute.AddResourcePoliciesDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).add_resource_policies._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).add_resource_policies._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.add_resource_policies_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_add_resource_policies_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.add_resource_policies._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "disksAddResourcePoliciesRequestResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_add_resource_policies_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_add_resource_policies"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_add_resource_policies"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.AddResourcePoliciesDiskRequest.pb(
            compute.AddResourcePoliciesDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.AddResourcePoliciesDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.add_resource_policies_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_add_resource_policies_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.AddResourcePoliciesDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_add_resource_policies_request_resource"] = {
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"]
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.add_resource_policies_unary(request)


def test_add_resource_policies_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_add_resource_policies_request_resource=compute.DisksAddResourcePoliciesRequest(
                resource_policies=["resource_policies_value"]
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.add_resource_policies_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/addResourcePolicies"
            % client.transport._host,
            args[1],
        )


def test_add_resource_policies_unary_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.add_resource_policies_unary(
            compute.AddResourcePoliciesDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_add_resource_policies_request_resource=compute.DisksAddResourcePoliciesRequest(
                resource_policies=["resource_policies_value"]
            ),
        )


def test_add_resource_policies_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.AggregatedListDisksRequest,
        dict,
    ],
)
def test_aggregated_list_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.DiskAggregatedList(
            id="id_value",
            kind="kind_value",
            next_page_token="next_page_token_value",
            self_link="self_link_value",
            unreachables=["unreachables_value"],
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.DiskAggregatedList.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.aggregated_list(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, pagers.AggregatedListPager)
    assert response.id == "id_value"
    assert response.kind == "kind_value"
    assert response.next_page_token == "next_page_token_value"
    assert response.self_link == "self_link_value"
    assert response.unreachables == ["unreachables_value"]


def test_aggregated_list_rest_required_fields(
    request_type=compute.AggregatedListDisksRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).aggregated_list._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).aggregated_list._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(
        (
            "filter",
            "include_all_scopes",
            "max_results",
            "order_by",
            "page_token",
            "return_partial_success",
        )
    )
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.DiskAggregatedList()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "get",
                "query_params": pb_request,
            }
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.DiskAggregatedList.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.aggregated_list(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_aggregated_list_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.aggregated_list._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(
            (
                "filter",
                "includeAllScopes",
                "maxResults",
                "orderBy",
                "pageToken",
                "returnPartialSuccess",
            )
        )
        & set(("project",))
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_aggregated_list_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_aggregated_list"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_aggregated_list"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.AggregatedListDisksRequest.pb(
            compute.AggregatedListDisksRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.DiskAggregatedList.to_json(
            compute.DiskAggregatedList()
        )

        request = compute.AggregatedListDisksRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.DiskAggregatedList()

        client.aggregated_list(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_aggregated_list_rest_bad_request(
    transport: str = "rest", request_type=compute.AggregatedListDisksRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.aggregated_list(request)


def test_aggregated_list_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.DiskAggregatedList()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.DiskAggregatedList.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.aggregated_list(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/aggregated/disks"
            % client.transport._host,
            args[1],
        )


def test_aggregated_list_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.aggregated_list(
            compute.AggregatedListDisksRequest(),
            project="project_value",
        )


def test_aggregated_list_rest_pager(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # TODO(kbandes): remove this mock unless there's a good reason for it.
        # with mock.patch.object(path_template, 'transcode') as transcode:
        # Set the response as a series of pages
        response = (
            compute.DiskAggregatedList(
                items={
                    "a": compute.DisksScopedList(),
                    "b": compute.DisksScopedList(),
                    "c": compute.DisksScopedList(),
                },
                next_page_token="abc",
            ),
            compute.DiskAggregatedList(
                items={},
                next_page_token="def",
            ),
            compute.DiskAggregatedList(
                items={
                    "g": compute.DisksScopedList(),
                },
                next_page_token="ghi",
            ),
            compute.DiskAggregatedList(
                items={
                    "h": compute.DisksScopedList(),
                    "i": compute.DisksScopedList(),
                },
            ),
        )
        # Two responses for two calls
        response = response + response

        # Wrap the values into proper Response objs
        response = tuple(compute.DiskAggregatedList.to_json(x) for x in response)
        return_values = tuple(Response() for i in response)
        for return_val, response_val in zip(return_values, response):
            return_val._content = response_val.encode("UTF-8")
            return_val.status_code = 200
        req.side_effect = return_values

        sample_request = {"project": "sample1"}

        pager = client.aggregated_list(request=sample_request)

        assert isinstance(pager.get("a"), compute.DisksScopedList)
        assert pager.get("h") is None

        results = list(pager)
        assert len(results) == 6
        assert all(isinstance(i, tuple) for i in results)
        for result in results:
            assert isinstance(result, tuple)
            assert tuple(type(t) for t in result) == (str, compute.DisksScopedList)

        assert pager.get("a") is None
        assert isinstance(pager.get("h"), compute.DisksScopedList)

        pages = list(client.aggregated_list(request=sample_request).pages)
        for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
            assert page_.raw_page.next_page_token == token


@pytest.mark.parametrize(
    "request_type",
    [
        compute.BulkInsertDiskRequest,
        dict,
    ],
)
def test_bulk_insert_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["bulk_insert_disk_resource_resource"] = {
        "source_consistency_group_policy": "source_consistency_group_policy_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.bulk_insert(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_bulk_insert_rest_required_fields(request_type=compute.BulkInsertDiskRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).bulk_insert._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).bulk_insert._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.bulk_insert(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_bulk_insert_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.bulk_insert._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "bulkInsertDiskResourceResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_bulk_insert_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_bulk_insert"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_bulk_insert"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.BulkInsertDiskRequest.pb(compute.BulkInsertDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.BulkInsertDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.bulk_insert(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_bulk_insert_rest_bad_request(
    transport: str = "rest", request_type=compute.BulkInsertDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["bulk_insert_disk_resource_resource"] = {
        "source_consistency_group_policy": "source_consistency_group_policy_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.bulk_insert(request)


def test_bulk_insert_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            bulk_insert_disk_resource_resource=compute.BulkInsertDiskResource(
                source_consistency_group_policy="source_consistency_group_policy_value"
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.bulk_insert(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/bulkInsert"
            % client.transport._host,
            args[1],
        )


def test_bulk_insert_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.bulk_insert(
            compute.BulkInsertDiskRequest(),
            project="project_value",
            zone="zone_value",
            bulk_insert_disk_resource_resource=compute.BulkInsertDiskResource(
                source_consistency_group_policy="source_consistency_group_policy_value"
            ),
        )


def test_bulk_insert_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.BulkInsertDiskRequest,
        dict,
    ],
)
def test_bulk_insert_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["bulk_insert_disk_resource_resource"] = {
        "source_consistency_group_policy": "source_consistency_group_policy_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.bulk_insert_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_bulk_insert_unary_rest_required_fields(
    request_type=compute.BulkInsertDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).bulk_insert._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).bulk_insert._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.bulk_insert_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_bulk_insert_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.bulk_insert._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "bulkInsertDiskResourceResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_bulk_insert_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_bulk_insert"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_bulk_insert"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.BulkInsertDiskRequest.pb(compute.BulkInsertDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.BulkInsertDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.bulk_insert_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_bulk_insert_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.BulkInsertDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["bulk_insert_disk_resource_resource"] = {
        "source_consistency_group_policy": "source_consistency_group_policy_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.bulk_insert_unary(request)


def test_bulk_insert_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            bulk_insert_disk_resource_resource=compute.BulkInsertDiskResource(
                source_consistency_group_policy="source_consistency_group_policy_value"
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.bulk_insert_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/bulkInsert"
            % client.transport._host,
            args[1],
        )


def test_bulk_insert_unary_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.bulk_insert_unary(
            compute.BulkInsertDiskRequest(),
            project="project_value",
            zone="zone_value",
            bulk_insert_disk_resource_resource=compute.BulkInsertDiskResource(
                source_consistency_group_policy="source_consistency_group_policy_value"
            ),
        )


def test_bulk_insert_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.CreateSnapshotDiskRequest,
        dict,
    ],
)
def test_create_snapshot_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["snapshot_resource"] = {
        "architecture": "architecture_value",
        "auto_created": True,
        "chain_name": "chain_name_value",
        "creation_size_bytes": 2037,
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_size_gb": 1261,
        "download_bytes": 1502,
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "snapshot_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "snapshot_type": "snapshot_type_value",
        "source_disk": "source_disk_value",
        "source_disk_encryption_key": {},
        "source_disk_id": "source_disk_id_value",
        "source_snapshot_schedule_policy": "source_snapshot_schedule_policy_value",
        "source_snapshot_schedule_policy_id": "source_snapshot_schedule_policy_id_value",
        "status": "status_value",
        "storage_bytes": 1403,
        "storage_bytes_status": "storage_bytes_status_value",
        "storage_locations": ["storage_locations_value1", "storage_locations_value2"],
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.create_snapshot(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_create_snapshot_rest_required_fields(
    request_type=compute.CreateSnapshotDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).create_snapshot._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).create_snapshot._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(
        (
            "guest_flush",
            "request_id",
        )
    )
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.create_snapshot(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_create_snapshot_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.create_snapshot._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(
            (
                "guestFlush",
                "requestId",
            )
        )
        & set(
            (
                "disk",
                "project",
                "snapshotResource",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_create_snapshot_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_create_snapshot"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_create_snapshot"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.CreateSnapshotDiskRequest.pb(
            compute.CreateSnapshotDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.CreateSnapshotDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.create_snapshot(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_create_snapshot_rest_bad_request(
    transport: str = "rest", request_type=compute.CreateSnapshotDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["snapshot_resource"] = {
        "architecture": "architecture_value",
        "auto_created": True,
        "chain_name": "chain_name_value",
        "creation_size_bytes": 2037,
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_size_gb": 1261,
        "download_bytes": 1502,
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "snapshot_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "snapshot_type": "snapshot_type_value",
        "source_disk": "source_disk_value",
        "source_disk_encryption_key": {},
        "source_disk_id": "source_disk_id_value",
        "source_snapshot_schedule_policy": "source_snapshot_schedule_policy_value",
        "source_snapshot_schedule_policy_id": "source_snapshot_schedule_policy_id_value",
        "status": "status_value",
        "storage_bytes": 1403,
        "storage_bytes_status": "storage_bytes_status_value",
        "storage_locations": ["storage_locations_value1", "storage_locations_value2"],
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.create_snapshot(request)


def test_create_snapshot_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            snapshot_resource=compute.Snapshot(architecture="architecture_value"),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.create_snapshot(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/createSnapshot"
            % client.transport._host,
            args[1],
        )


def test_create_snapshot_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.create_snapshot(
            compute.CreateSnapshotDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            snapshot_resource=compute.Snapshot(architecture="architecture_value"),
        )


def test_create_snapshot_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.CreateSnapshotDiskRequest,
        dict,
    ],
)
def test_create_snapshot_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["snapshot_resource"] = {
        "architecture": "architecture_value",
        "auto_created": True,
        "chain_name": "chain_name_value",
        "creation_size_bytes": 2037,
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_size_gb": 1261,
        "download_bytes": 1502,
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "snapshot_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "snapshot_type": "snapshot_type_value",
        "source_disk": "source_disk_value",
        "source_disk_encryption_key": {},
        "source_disk_id": "source_disk_id_value",
        "source_snapshot_schedule_policy": "source_snapshot_schedule_policy_value",
        "source_snapshot_schedule_policy_id": "source_snapshot_schedule_policy_id_value",
        "status": "status_value",
        "storage_bytes": 1403,
        "storage_bytes_status": "storage_bytes_status_value",
        "storage_locations": ["storage_locations_value1", "storage_locations_value2"],
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.create_snapshot_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_create_snapshot_unary_rest_required_fields(
    request_type=compute.CreateSnapshotDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).create_snapshot._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).create_snapshot._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(
        (
            "guest_flush",
            "request_id",
        )
    )
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.create_snapshot_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_create_snapshot_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.create_snapshot._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(
            (
                "guestFlush",
                "requestId",
            )
        )
        & set(
            (
                "disk",
                "project",
                "snapshotResource",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_create_snapshot_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_create_snapshot"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_create_snapshot"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.CreateSnapshotDiskRequest.pb(
            compute.CreateSnapshotDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.CreateSnapshotDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.create_snapshot_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_create_snapshot_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.CreateSnapshotDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["snapshot_resource"] = {
        "architecture": "architecture_value",
        "auto_created": True,
        "chain_name": "chain_name_value",
        "creation_size_bytes": 2037,
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_size_gb": 1261,
        "download_bytes": 1502,
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "snapshot_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "snapshot_type": "snapshot_type_value",
        "source_disk": "source_disk_value",
        "source_disk_encryption_key": {},
        "source_disk_id": "source_disk_id_value",
        "source_snapshot_schedule_policy": "source_snapshot_schedule_policy_value",
        "source_snapshot_schedule_policy_id": "source_snapshot_schedule_policy_id_value",
        "status": "status_value",
        "storage_bytes": 1403,
        "storage_bytes_status": "storage_bytes_status_value",
        "storage_locations": ["storage_locations_value1", "storage_locations_value2"],
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.create_snapshot_unary(request)


def test_create_snapshot_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            snapshot_resource=compute.Snapshot(architecture="architecture_value"),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.create_snapshot_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/createSnapshot"
            % client.transport._host,
            args[1],
        )


def test_create_snapshot_unary_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.create_snapshot_unary(
            compute.CreateSnapshotDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            snapshot_resource=compute.Snapshot(architecture="architecture_value"),
        )


def test_create_snapshot_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.DeleteDiskRequest,
        dict,
    ],
)
def test_delete_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.delete(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_delete_rest_required_fields(request_type=compute.DeleteDiskRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).delete._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).delete._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "delete",
                "query_params": pb_request,
            }
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.delete(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_delete_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.delete._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_delete_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_delete"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_delete"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.DeleteDiskRequest.pb(compute.DeleteDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.DeleteDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.delete(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_delete_rest_bad_request(
    transport: str = "rest", request_type=compute.DeleteDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.delete(request)


def test_delete_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.delete(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}"
            % client.transport._host,
            args[1],
        )


def test_delete_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.delete(
            compute.DeleteDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
        )


def test_delete_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.DeleteDiskRequest,
        dict,
    ],
)
def test_delete_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.delete_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_delete_unary_rest_required_fields(request_type=compute.DeleteDiskRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).delete._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).delete._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "delete",
                "query_params": pb_request,
            }
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.delete_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_delete_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.delete._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_delete_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_delete"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_delete"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.DeleteDiskRequest.pb(compute.DeleteDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.DeleteDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.delete_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_delete_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.DeleteDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.delete_unary(request)


def test_delete_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.delete_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}"
            % client.transport._host,
            args[1],
        )


def test_delete_unary_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.delete_unary(
            compute.DeleteDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
        )


def test_delete_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.GetDiskRequest,
        dict,
    ],
)
def test_get_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Disk(
            architecture="architecture_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            id=205,
            kind="kind_value",
            label_fingerprint="label_fingerprint_value",
            last_attach_timestamp="last_attach_timestamp_value",
            last_detach_timestamp="last_detach_timestamp_value",
            license_codes=[1360],
            licenses=["licenses_value"],
            location_hint="location_hint_value",
            name="name_value",
            options="options_value",
            physical_block_size_bytes=2663,
            provisioned_iops=1740,
            provisioned_throughput=2411,
            region="region_value",
            replica_zones=["replica_zones_value"],
            resource_policies=["resource_policies_value"],
            satisfies_pzs=True,
            self_link="self_link_value",
            size_gb=739,
            source_consistency_group_policy="source_consistency_group_policy_value",
            source_consistency_group_policy_id="source_consistency_group_policy_id_value",
            source_disk="source_disk_value",
            source_disk_id="source_disk_id_value",
            source_image="source_image_value",
            source_image_id="source_image_id_value",
            source_snapshot="source_snapshot_value",
            source_snapshot_id="source_snapshot_id_value",
            source_storage_object="source_storage_object_value",
            status="status_value",
            type_="type__value",
            users=["users_value"],
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Disk.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.get(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Disk)
    assert response.architecture == "architecture_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.id == 205
    assert response.kind == "kind_value"
    assert response.label_fingerprint == "label_fingerprint_value"
    assert response.last_attach_timestamp == "last_attach_timestamp_value"
    assert response.last_detach_timestamp == "last_detach_timestamp_value"
    assert response.license_codes == [1360]
    assert response.licenses == ["licenses_value"]
    assert response.location_hint == "location_hint_value"
    assert response.name == "name_value"
    assert response.options == "options_value"
    assert response.physical_block_size_bytes == 2663
    assert response.provisioned_iops == 1740
    assert response.provisioned_throughput == 2411
    assert response.region == "region_value"
    assert response.replica_zones == ["replica_zones_value"]
    assert response.resource_policies == ["resource_policies_value"]
    assert response.satisfies_pzs is True
    assert response.self_link == "self_link_value"
    assert response.size_gb == 739
    assert (
        response.source_consistency_group_policy
        == "source_consistency_group_policy_value"
    )
    assert (
        response.source_consistency_group_policy_id
        == "source_consistency_group_policy_id_value"
    )
    assert response.source_disk == "source_disk_value"
    assert response.source_disk_id == "source_disk_id_value"
    assert response.source_image == "source_image_value"
    assert response.source_image_id == "source_image_id_value"
    assert response.source_snapshot == "source_snapshot_value"
    assert response.source_snapshot_id == "source_snapshot_id_value"
    assert response.source_storage_object == "source_storage_object_value"
    assert response.status == "status_value"
    assert response.type_ == "type__value"
    assert response.users == ["users_value"]
    assert response.zone == "zone_value"


def test_get_rest_required_fields(request_type=compute.GetDiskRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).get._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).get._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Disk()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "get",
                "query_params": pb_request,
            }
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Disk.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.get(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_get_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.get._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(())
        & set(
            (
                "disk",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_get_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_get"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_get"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.GetDiskRequest.pb(compute.GetDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Disk.to_json(compute.Disk())

        request = compute.GetDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Disk()

        client.get(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_get_rest_bad_request(
    transport: str = "rest", request_type=compute.GetDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.get(request)


def test_get_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Disk()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Disk.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.get(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}"
            % client.transport._host,
            args[1],
        )


def test_get_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.get(
            compute.GetDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
        )


def test_get_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.GetIamPolicyDiskRequest,
        dict,
    ],
)
def test_get_iam_policy_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "resource": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Policy(
            etag="etag_value",
            iam_owned=True,
            version=774,
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Policy.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.get_iam_policy(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Policy)
    assert response.etag == "etag_value"
    assert response.iam_owned is True
    assert response.version == 774


def test_get_iam_policy_rest_required_fields(
    request_type=compute.GetIamPolicyDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["resource"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).get_iam_policy._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["resource"] = "resource_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).get_iam_policy._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("options_requested_policy_version",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "resource" in jsonified_request
    assert jsonified_request["resource"] == "resource_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Policy()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "get",
                "query_params": pb_request,
            }
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Policy.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.get_iam_policy(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_get_iam_policy_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.get_iam_policy._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("optionsRequestedPolicyVersion",))
        & set(
            (
                "project",
                "resource",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_get_iam_policy_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_get_iam_policy"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_get_iam_policy"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.GetIamPolicyDiskRequest.pb(
            compute.GetIamPolicyDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Policy.to_json(compute.Policy())

        request = compute.GetIamPolicyDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Policy()

        client.get_iam_policy(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_get_iam_policy_rest_bad_request(
    transport: str = "rest", request_type=compute.GetIamPolicyDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "resource": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.get_iam_policy(request)


def test_get_iam_policy_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Policy()

        # get arguments that satisfy an http rule for this method
        sample_request = {
            "project": "sample1",
            "zone": "sample2",
            "resource": "sample3",
        }

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            resource="resource_value",
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Policy.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.get_iam_policy(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{resource}/getIamPolicy"
            % client.transport._host,
            args[1],
        )


def test_get_iam_policy_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.get_iam_policy(
            compute.GetIamPolicyDiskRequest(),
            project="project_value",
            zone="zone_value",
            resource="resource_value",
        )


def test_get_iam_policy_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.InsertDiskRequest,
        dict,
    ],
)
def test_insert_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["disk_resource"] = {
        "architecture": "architecture_value",
        "async_primary_disk": {
            "consistency_group_policy": "consistency_group_policy_value",
            "consistency_group_policy_id": "consistency_group_policy_id_value",
            "disk": "disk_value",
            "disk_id": "disk_id_value",
        },
        "async_secondary_disks": {},
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "guest_os_features": [{"type_": "type__value"}],
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "last_attach_timestamp": "last_attach_timestamp_value",
        "last_detach_timestamp": "last_detach_timestamp_value",
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "options": "options_value",
        "params": {"resource_manager_tags": {}},
        "physical_block_size_bytes": 2663,
        "provisioned_iops": 1740,
        "provisioned_throughput": 2411,
        "region": "region_value",
        "replica_zones": ["replica_zones_value1", "replica_zones_value2"],
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"],
        "resource_status": {
            "async_primary_disk": {"state": "state_value"},
            "async_secondary_disks": {},
        },
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "size_gb": 739,
        "source_consistency_group_policy": "source_consistency_group_policy_value",
        "source_consistency_group_policy_id": "source_consistency_group_policy_id_value",
        "source_disk": "source_disk_value",
        "source_disk_id": "source_disk_id_value",
        "source_image": "source_image_value",
        "source_image_encryption_key": {},
        "source_image_id": "source_image_id_value",
        "source_snapshot": "source_snapshot_value",
        "source_snapshot_encryption_key": {},
        "source_snapshot_id": "source_snapshot_id_value",
        "source_storage_object": "source_storage_object_value",
        "status": "status_value",
        "type_": "type__value",
        "users": ["users_value1", "users_value2"],
        "zone": "zone_value",
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.insert(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_insert_rest_required_fields(request_type=compute.InsertDiskRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).insert._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).insert._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(
        (
            "request_id",
            "source_image",
        )
    )
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.insert(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_insert_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.insert._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(
            (
                "requestId",
                "sourceImage",
            )
        )
        & set(
            (
                "diskResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_insert_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_insert"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_insert"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.InsertDiskRequest.pb(compute.InsertDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.InsertDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.insert(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_insert_rest_bad_request(
    transport: str = "rest", request_type=compute.InsertDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["disk_resource"] = {
        "architecture": "architecture_value",
        "async_primary_disk": {
            "consistency_group_policy": "consistency_group_policy_value",
            "consistency_group_policy_id": "consistency_group_policy_id_value",
            "disk": "disk_value",
            "disk_id": "disk_id_value",
        },
        "async_secondary_disks": {},
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "guest_os_features": [{"type_": "type__value"}],
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "last_attach_timestamp": "last_attach_timestamp_value",
        "last_detach_timestamp": "last_detach_timestamp_value",
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "options": "options_value",
        "params": {"resource_manager_tags": {}},
        "physical_block_size_bytes": 2663,
        "provisioned_iops": 1740,
        "provisioned_throughput": 2411,
        "region": "region_value",
        "replica_zones": ["replica_zones_value1", "replica_zones_value2"],
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"],
        "resource_status": {
            "async_primary_disk": {"state": "state_value"},
            "async_secondary_disks": {},
        },
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "size_gb": 739,
        "source_consistency_group_policy": "source_consistency_group_policy_value",
        "source_consistency_group_policy_id": "source_consistency_group_policy_id_value",
        "source_disk": "source_disk_value",
        "source_disk_id": "source_disk_id_value",
        "source_image": "source_image_value",
        "source_image_encryption_key": {},
        "source_image_id": "source_image_id_value",
        "source_snapshot": "source_snapshot_value",
        "source_snapshot_encryption_key": {},
        "source_snapshot_id": "source_snapshot_id_value",
        "source_storage_object": "source_storage_object_value",
        "status": "status_value",
        "type_": "type__value",
        "users": ["users_value1", "users_value2"],
        "zone": "zone_value",
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.insert(request)


def test_insert_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk_resource=compute.Disk(architecture="architecture_value"),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.insert(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks"
            % client.transport._host,
            args[1],
        )


def test_insert_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.insert(
            compute.InsertDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk_resource=compute.Disk(architecture="architecture_value"),
        )


def test_insert_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.InsertDiskRequest,
        dict,
    ],
)
def test_insert_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["disk_resource"] = {
        "architecture": "architecture_value",
        "async_primary_disk": {
            "consistency_group_policy": "consistency_group_policy_value",
            "consistency_group_policy_id": "consistency_group_policy_id_value",
            "disk": "disk_value",
            "disk_id": "disk_id_value",
        },
        "async_secondary_disks": {},
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "guest_os_features": [{"type_": "type__value"}],
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "last_attach_timestamp": "last_attach_timestamp_value",
        "last_detach_timestamp": "last_detach_timestamp_value",
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "options": "options_value",
        "params": {"resource_manager_tags": {}},
        "physical_block_size_bytes": 2663,
        "provisioned_iops": 1740,
        "provisioned_throughput": 2411,
        "region": "region_value",
        "replica_zones": ["replica_zones_value1", "replica_zones_value2"],
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"],
        "resource_status": {
            "async_primary_disk": {"state": "state_value"},
            "async_secondary_disks": {},
        },
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "size_gb": 739,
        "source_consistency_group_policy": "source_consistency_group_policy_value",
        "source_consistency_group_policy_id": "source_consistency_group_policy_id_value",
        "source_disk": "source_disk_value",
        "source_disk_id": "source_disk_id_value",
        "source_image": "source_image_value",
        "source_image_encryption_key": {},
        "source_image_id": "source_image_id_value",
        "source_snapshot": "source_snapshot_value",
        "source_snapshot_encryption_key": {},
        "source_snapshot_id": "source_snapshot_id_value",
        "source_storage_object": "source_storage_object_value",
        "status": "status_value",
        "type_": "type__value",
        "users": ["users_value1", "users_value2"],
        "zone": "zone_value",
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.insert_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_insert_unary_rest_required_fields(request_type=compute.InsertDiskRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).insert._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).insert._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(
        (
            "request_id",
            "source_image",
        )
    )
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.insert_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_insert_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.insert._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(
            (
                "requestId",
                "sourceImage",
            )
        )
        & set(
            (
                "diskResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_insert_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_insert"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_insert"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.InsertDiskRequest.pb(compute.InsertDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.InsertDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.insert_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_insert_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.InsertDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["disk_resource"] = {
        "architecture": "architecture_value",
        "async_primary_disk": {
            "consistency_group_policy": "consistency_group_policy_value",
            "consistency_group_policy_id": "consistency_group_policy_id_value",
            "disk": "disk_value",
            "disk_id": "disk_id_value",
        },
        "async_secondary_disks": {},
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "guest_os_features": [{"type_": "type__value"}],
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "last_attach_timestamp": "last_attach_timestamp_value",
        "last_detach_timestamp": "last_detach_timestamp_value",
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "options": "options_value",
        "params": {"resource_manager_tags": {}},
        "physical_block_size_bytes": 2663,
        "provisioned_iops": 1740,
        "provisioned_throughput": 2411,
        "region": "region_value",
        "replica_zones": ["replica_zones_value1", "replica_zones_value2"],
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"],
        "resource_status": {
            "async_primary_disk": {"state": "state_value"},
            "async_secondary_disks": {},
        },
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "size_gb": 739,
        "source_consistency_group_policy": "source_consistency_group_policy_value",
        "source_consistency_group_policy_id": "source_consistency_group_policy_id_value",
        "source_disk": "source_disk_value",
        "source_disk_id": "source_disk_id_value",
        "source_image": "source_image_value",
        "source_image_encryption_key": {},
        "source_image_id": "source_image_id_value",
        "source_snapshot": "source_snapshot_value",
        "source_snapshot_encryption_key": {},
        "source_snapshot_id": "source_snapshot_id_value",
        "source_storage_object": "source_storage_object_value",
        "status": "status_value",
        "type_": "type__value",
        "users": ["users_value1", "users_value2"],
        "zone": "zone_value",
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.insert_unary(request)


def test_insert_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk_resource=compute.Disk(architecture="architecture_value"),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.insert_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks"
            % client.transport._host,
            args[1],
        )


def test_insert_unary_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.insert_unary(
            compute.InsertDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk_resource=compute.Disk(architecture="architecture_value"),
        )


def test_insert_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.ListDisksRequest,
        dict,
    ],
)
def test_list_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.DiskList(
            id="id_value",
            kind="kind_value",
            next_page_token="next_page_token_value",
            self_link="self_link_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.DiskList.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.list(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, pagers.ListPager)
    assert response.id == "id_value"
    assert response.kind == "kind_value"
    assert response.next_page_token == "next_page_token_value"
    assert response.self_link == "self_link_value"


def test_list_rest_required_fields(request_type=compute.ListDisksRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).list._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).list._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(
        (
            "filter",
            "max_results",
            "order_by",
            "page_token",
            "return_partial_success",
        )
    )
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.DiskList()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "get",
                "query_params": pb_request,
            }
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.DiskList.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.list(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_list_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.list._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(
            (
                "filter",
                "maxResults",
                "orderBy",
                "pageToken",
                "returnPartialSuccess",
            )
        )
        & set(
            (
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_list_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_list"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_list"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.ListDisksRequest.pb(compute.ListDisksRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.DiskList.to_json(compute.DiskList())

        request = compute.ListDisksRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.DiskList()

        client.list(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_list_rest_bad_request(
    transport: str = "rest", request_type=compute.ListDisksRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.list(request)


def test_list_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.DiskList()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.DiskList.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.list(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks"
            % client.transport._host,
            args[1],
        )


def test_list_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.list(
            compute.ListDisksRequest(),
            project="project_value",
            zone="zone_value",
        )


def test_list_rest_pager(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # TODO(kbandes): remove this mock unless there's a good reason for it.
        # with mock.patch.object(path_template, 'transcode') as transcode:
        # Set the response as a series of pages
        response = (
            compute.DiskList(
                items=[
                    compute.Disk(),
                    compute.Disk(),
                    compute.Disk(),
                ],
                next_page_token="abc",
            ),
            compute.DiskList(
                items=[],
                next_page_token="def",
            ),
            compute.DiskList(
                items=[
                    compute.Disk(),
                ],
                next_page_token="ghi",
            ),
            compute.DiskList(
                items=[
                    compute.Disk(),
                    compute.Disk(),
                ],
            ),
        )
        # Two responses for two calls
        response = response + response

        # Wrap the values into proper Response objs
        response = tuple(compute.DiskList.to_json(x) for x in response)
        return_values = tuple(Response() for i in response)
        for return_val, response_val in zip(return_values, response):
            return_val._content = response_val.encode("UTF-8")
            return_val.status_code = 200
        req.side_effect = return_values

        sample_request = {"project": "sample1", "zone": "sample2"}

        pager = client.list(request=sample_request)

        results = list(pager)
        assert len(results) == 6
        assert all(isinstance(i, compute.Disk) for i in results)

        pages = list(client.list(request=sample_request).pages)
        for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
            assert page_.raw_page.next_page_token == token


@pytest.mark.parametrize(
    "request_type",
    [
        compute.RemoveResourcePoliciesDiskRequest,
        dict,
    ],
)
def test_remove_resource_policies_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_remove_resource_policies_request_resource"] = {
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"]
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.remove_resource_policies(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_remove_resource_policies_rest_required_fields(
    request_type=compute.RemoveResourcePoliciesDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).remove_resource_policies._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).remove_resource_policies._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.remove_resource_policies(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_remove_resource_policies_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.remove_resource_policies._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "disksRemoveResourcePoliciesRequestResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_remove_resource_policies_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_remove_resource_policies"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_remove_resource_policies"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.RemoveResourcePoliciesDiskRequest.pb(
            compute.RemoveResourcePoliciesDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.RemoveResourcePoliciesDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.remove_resource_policies(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_remove_resource_policies_rest_bad_request(
    transport: str = "rest", request_type=compute.RemoveResourcePoliciesDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_remove_resource_policies_request_resource"] = {
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"]
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.remove_resource_policies(request)


def test_remove_resource_policies_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_remove_resource_policies_request_resource=compute.DisksRemoveResourcePoliciesRequest(
                resource_policies=["resource_policies_value"]
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.remove_resource_policies(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/removeResourcePolicies"
            % client.transport._host,
            args[1],
        )


def test_remove_resource_policies_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.remove_resource_policies(
            compute.RemoveResourcePoliciesDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_remove_resource_policies_request_resource=compute.DisksRemoveResourcePoliciesRequest(
                resource_policies=["resource_policies_value"]
            ),
        )


def test_remove_resource_policies_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.RemoveResourcePoliciesDiskRequest,
        dict,
    ],
)
def test_remove_resource_policies_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_remove_resource_policies_request_resource"] = {
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"]
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.remove_resource_policies_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_remove_resource_policies_unary_rest_required_fields(
    request_type=compute.RemoveResourcePoliciesDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).remove_resource_policies._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).remove_resource_policies._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.remove_resource_policies_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_remove_resource_policies_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.remove_resource_policies._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "disksRemoveResourcePoliciesRequestResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_remove_resource_policies_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_remove_resource_policies"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_remove_resource_policies"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.RemoveResourcePoliciesDiskRequest.pb(
            compute.RemoveResourcePoliciesDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.RemoveResourcePoliciesDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.remove_resource_policies_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_remove_resource_policies_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.RemoveResourcePoliciesDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_remove_resource_policies_request_resource"] = {
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"]
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.remove_resource_policies_unary(request)


def test_remove_resource_policies_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_remove_resource_policies_request_resource=compute.DisksRemoveResourcePoliciesRequest(
                resource_policies=["resource_policies_value"]
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.remove_resource_policies_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/removeResourcePolicies"
            % client.transport._host,
            args[1],
        )


def test_remove_resource_policies_unary_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.remove_resource_policies_unary(
            compute.RemoveResourcePoliciesDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_remove_resource_policies_request_resource=compute.DisksRemoveResourcePoliciesRequest(
                resource_policies=["resource_policies_value"]
            ),
        )


def test_remove_resource_policies_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.ResizeDiskRequest,
        dict,
    ],
)
def test_resize_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_resize_request_resource"] = {"size_gb": 739}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.resize(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_resize_rest_required_fields(request_type=compute.ResizeDiskRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).resize._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).resize._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.resize(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_resize_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.resize._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "disksResizeRequestResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_resize_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_resize"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_resize"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.ResizeDiskRequest.pb(compute.ResizeDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.ResizeDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.resize(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_resize_rest_bad_request(
    transport: str = "rest", request_type=compute.ResizeDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_resize_request_resource"] = {"size_gb": 739}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.resize(request)


def test_resize_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_resize_request_resource=compute.DisksResizeRequest(size_gb=739),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.resize(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/resize"
            % client.transport._host,
            args[1],
        )


def test_resize_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.resize(
            compute.ResizeDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_resize_request_resource=compute.DisksResizeRequest(size_gb=739),
        )


def test_resize_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.ResizeDiskRequest,
        dict,
    ],
)
def test_resize_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_resize_request_resource"] = {"size_gb": 739}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.resize_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_resize_unary_rest_required_fields(request_type=compute.ResizeDiskRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).resize._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).resize._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.resize_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_resize_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.resize._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "disksResizeRequestResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_resize_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_resize"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_resize"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.ResizeDiskRequest.pb(compute.ResizeDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.ResizeDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.resize_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_resize_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.ResizeDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_resize_request_resource"] = {"size_gb": 739}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.resize_unary(request)


def test_resize_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_resize_request_resource=compute.DisksResizeRequest(size_gb=739),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.resize_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/resize"
            % client.transport._host,
            args[1],
        )


def test_resize_unary_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.resize_unary(
            compute.ResizeDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_resize_request_resource=compute.DisksResizeRequest(size_gb=739),
        )


def test_resize_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.SetIamPolicyDiskRequest,
        dict,
    ],
)
def test_set_iam_policy_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "resource": "sample3"}
    request_init["zone_set_policy_request_resource"] = {
        "bindings": [
            {
                "binding_id": "binding_id_value",
                "condition": {
                    "description": "description_value",
                    "expression": "expression_value",
                    "location": "location_value",
                    "title": "title_value",
                },
                "members": ["members_value1", "members_value2"],
                "role": "role_value",
            }
        ],
        "etag": "etag_value",
        "policy": {
            "audit_configs": [
                {
                    "audit_log_configs": [
                        {
                            "exempted_members": [
                                "exempted_members_value1",
                                "exempted_members_value2",
                            ],
                            "ignore_child_exemptions": True,
                            "log_type": "log_type_value",
                        }
                    ],
                    "exempted_members": [
                        "exempted_members_value1",
                        "exempted_members_value2",
                    ],
                    "service": "service_value",
                }
            ],
            "bindings": {},
            "etag": "etag_value",
            "iam_owned": True,
            "rules": [
                {
                    "action": "action_value",
                    "conditions": [
                        {
                            "iam": "iam_value",
                            "op": "op_value",
                            "svc": "svc_value",
                            "sys": "sys_value",
                            "values": ["values_value1", "values_value2"],
                        }
                    ],
                    "description": "description_value",
                    "ins": ["ins_value1", "ins_value2"],
                    "log_configs": [
                        {
                            "cloud_audit": {
                                "authorization_logging_options": {
                                    "permission_type": "permission_type_value"
                                },
                                "log_name": "log_name_value",
                            },
                            "counter": {
                                "custom_fields": [
                                    {"name": "name_value", "value": "value_value"}
                                ],
                                "field": "field_value",
                                "metric": "metric_value",
                            },
                            "data_access": {"log_mode": "log_mode_value"},
                        }
                    ],
                    "not_ins": ["not_ins_value1", "not_ins_value2"],
                    "permissions": ["permissions_value1", "permissions_value2"],
                }
            ],
            "version": 774,
        },
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Policy(
            etag="etag_value",
            iam_owned=True,
            version=774,
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Policy.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.set_iam_policy(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Policy)
    assert response.etag == "etag_value"
    assert response.iam_owned is True
    assert response.version == 774


def test_set_iam_policy_rest_required_fields(
    request_type=compute.SetIamPolicyDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["resource"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).set_iam_policy._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["resource"] = "resource_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).set_iam_policy._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "resource" in jsonified_request
    assert jsonified_request["resource"] == "resource_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Policy()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Policy.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.set_iam_policy(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_set_iam_policy_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.set_iam_policy._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(())
        & set(
            (
                "project",
                "resource",
                "zone",
                "zoneSetPolicyRequestResource",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_set_iam_policy_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_set_iam_policy"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_set_iam_policy"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.SetIamPolicyDiskRequest.pb(
            compute.SetIamPolicyDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Policy.to_json(compute.Policy())

        request = compute.SetIamPolicyDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Policy()

        client.set_iam_policy(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_set_iam_policy_rest_bad_request(
    transport: str = "rest", request_type=compute.SetIamPolicyDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "resource": "sample3"}
    request_init["zone_set_policy_request_resource"] = {
        "bindings": [
            {
                "binding_id": "binding_id_value",
                "condition": {
                    "description": "description_value",
                    "expression": "expression_value",
                    "location": "location_value",
                    "title": "title_value",
                },
                "members": ["members_value1", "members_value2"],
                "role": "role_value",
            }
        ],
        "etag": "etag_value",
        "policy": {
            "audit_configs": [
                {
                    "audit_log_configs": [
                        {
                            "exempted_members": [
                                "exempted_members_value1",
                                "exempted_members_value2",
                            ],
                            "ignore_child_exemptions": True,
                            "log_type": "log_type_value",
                        }
                    ],
                    "exempted_members": [
                        "exempted_members_value1",
                        "exempted_members_value2",
                    ],
                    "service": "service_value",
                }
            ],
            "bindings": {},
            "etag": "etag_value",
            "iam_owned": True,
            "rules": [
                {
                    "action": "action_value",
                    "conditions": [
                        {
                            "iam": "iam_value",
                            "op": "op_value",
                            "svc": "svc_value",
                            "sys": "sys_value",
                            "values": ["values_value1", "values_value2"],
                        }
                    ],
                    "description": "description_value",
                    "ins": ["ins_value1", "ins_value2"],
                    "log_configs": [
                        {
                            "cloud_audit": {
                                "authorization_logging_options": {
                                    "permission_type": "permission_type_value"
                                },
                                "log_name": "log_name_value",
                            },
                            "counter": {
                                "custom_fields": [
                                    {"name": "name_value", "value": "value_value"}
                                ],
                                "field": "field_value",
                                "metric": "metric_value",
                            },
                            "data_access": {"log_mode": "log_mode_value"},
                        }
                    ],
                    "not_ins": ["not_ins_value1", "not_ins_value2"],
                    "permissions": ["permissions_value1", "permissions_value2"],
                }
            ],
            "version": 774,
        },
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.set_iam_policy(request)


def test_set_iam_policy_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Policy()

        # get arguments that satisfy an http rule for this method
        sample_request = {
            "project": "sample1",
            "zone": "sample2",
            "resource": "sample3",
        }

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            resource="resource_value",
            zone_set_policy_request_resource=compute.ZoneSetPolicyRequest(
                bindings=[compute.Binding(binding_id="binding_id_value")]
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Policy.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.set_iam_policy(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{resource}/setIamPolicy"
            % client.transport._host,
            args[1],
        )


def test_set_iam_policy_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.set_iam_policy(
            compute.SetIamPolicyDiskRequest(),
            project="project_value",
            zone="zone_value",
            resource="resource_value",
            zone_set_policy_request_resource=compute.ZoneSetPolicyRequest(
                bindings=[compute.Binding(binding_id="binding_id_value")]
            ),
        )


def test_set_iam_policy_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.SetLabelsDiskRequest,
        dict,
    ],
)
def test_set_labels_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "resource": "sample3"}
    request_init["zone_set_labels_request_resource"] = {
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.set_labels(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_set_labels_rest_required_fields(request_type=compute.SetLabelsDiskRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["resource"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).set_labels._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["resource"] = "resource_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).set_labels._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "resource" in jsonified_request
    assert jsonified_request["resource"] == "resource_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.set_labels(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_set_labels_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.set_labels._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "project",
                "resource",
                "zone",
                "zoneSetLabelsRequestResource",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_set_labels_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_set_labels"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_set_labels"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.SetLabelsDiskRequest.pb(compute.SetLabelsDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.SetLabelsDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.set_labels(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_set_labels_rest_bad_request(
    transport: str = "rest", request_type=compute.SetLabelsDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "resource": "sample3"}
    request_init["zone_set_labels_request_resource"] = {
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.set_labels(request)


def test_set_labels_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {
            "project": "sample1",
            "zone": "sample2",
            "resource": "sample3",
        }

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            resource="resource_value",
            zone_set_labels_request_resource=compute.ZoneSetLabelsRequest(
                label_fingerprint="label_fingerprint_value"
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.set_labels(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{resource}/setLabels"
            % client.transport._host,
            args[1],
        )


def test_set_labels_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.set_labels(
            compute.SetLabelsDiskRequest(),
            project="project_value",
            zone="zone_value",
            resource="resource_value",
            zone_set_labels_request_resource=compute.ZoneSetLabelsRequest(
                label_fingerprint="label_fingerprint_value"
            ),
        )


def test_set_labels_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.SetLabelsDiskRequest,
        dict,
    ],
)
def test_set_labels_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "resource": "sample3"}
    request_init["zone_set_labels_request_resource"] = {
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.set_labels_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_set_labels_unary_rest_required_fields(
    request_type=compute.SetLabelsDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["resource"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).set_labels._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["resource"] = "resource_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).set_labels._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "resource" in jsonified_request
    assert jsonified_request["resource"] == "resource_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.set_labels_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_set_labels_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.set_labels._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "project",
                "resource",
                "zone",
                "zoneSetLabelsRequestResource",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_set_labels_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_set_labels"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_set_labels"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.SetLabelsDiskRequest.pb(compute.SetLabelsDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.SetLabelsDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.set_labels_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_set_labels_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.SetLabelsDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "resource": "sample3"}
    request_init["zone_set_labels_request_resource"] = {
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.set_labels_unary(request)


def test_set_labels_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {
            "project": "sample1",
            "zone": "sample2",
            "resource": "sample3",
        }

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            resource="resource_value",
            zone_set_labels_request_resource=compute.ZoneSetLabelsRequest(
                label_fingerprint="label_fingerprint_value"
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.set_labels_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{resource}/setLabels"
            % client.transport._host,
            args[1],
        )


def test_set_labels_unary_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.set_labels_unary(
            compute.SetLabelsDiskRequest(),
            project="project_value",
            zone="zone_value",
            resource="resource_value",
            zone_set_labels_request_resource=compute.ZoneSetLabelsRequest(
                label_fingerprint="label_fingerprint_value"
            ),
        )


def test_set_labels_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.StartAsyncReplicationDiskRequest,
        dict,
    ],
)
def test_start_async_replication_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_start_async_replication_request_resource"] = {
        "async_secondary_disk": "async_secondary_disk_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.start_async_replication(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_start_async_replication_rest_required_fields(
    request_type=compute.StartAsyncReplicationDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).start_async_replication._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).start_async_replication._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.start_async_replication(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_start_async_replication_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.start_async_replication._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "disksStartAsyncReplicationRequestResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_start_async_replication_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_start_async_replication"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_start_async_replication"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.StartAsyncReplicationDiskRequest.pb(
            compute.StartAsyncReplicationDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.StartAsyncReplicationDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.start_async_replication(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_start_async_replication_rest_bad_request(
    transport: str = "rest", request_type=compute.StartAsyncReplicationDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_start_async_replication_request_resource"] = {
        "async_secondary_disk": "async_secondary_disk_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.start_async_replication(request)


def test_start_async_replication_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_start_async_replication_request_resource=compute.DisksStartAsyncReplicationRequest(
                async_secondary_disk="async_secondary_disk_value"
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.start_async_replication(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/startAsyncReplication"
            % client.transport._host,
            args[1],
        )


def test_start_async_replication_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.start_async_replication(
            compute.StartAsyncReplicationDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_start_async_replication_request_resource=compute.DisksStartAsyncReplicationRequest(
                async_secondary_disk="async_secondary_disk_value"
            ),
        )


def test_start_async_replication_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.StartAsyncReplicationDiskRequest,
        dict,
    ],
)
def test_start_async_replication_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_start_async_replication_request_resource"] = {
        "async_secondary_disk": "async_secondary_disk_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.start_async_replication_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_start_async_replication_unary_rest_required_fields(
    request_type=compute.StartAsyncReplicationDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).start_async_replication._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).start_async_replication._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.start_async_replication_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_start_async_replication_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.start_async_replication._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "disksStartAsyncReplicationRequestResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_start_async_replication_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_start_async_replication"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_start_async_replication"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.StartAsyncReplicationDiskRequest.pb(
            compute.StartAsyncReplicationDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.StartAsyncReplicationDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.start_async_replication_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_start_async_replication_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.StartAsyncReplicationDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disks_start_async_replication_request_resource"] = {
        "async_secondary_disk": "async_secondary_disk_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.start_async_replication_unary(request)


def test_start_async_replication_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_start_async_replication_request_resource=compute.DisksStartAsyncReplicationRequest(
                async_secondary_disk="async_secondary_disk_value"
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.start_async_replication_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/startAsyncReplication"
            % client.transport._host,
            args[1],
        )


def test_start_async_replication_unary_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.start_async_replication_unary(
            compute.StartAsyncReplicationDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disks_start_async_replication_request_resource=compute.DisksStartAsyncReplicationRequest(
                async_secondary_disk="async_secondary_disk_value"
            ),
        )


def test_start_async_replication_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.StopAsyncReplicationDiskRequest,
        dict,
    ],
)
def test_stop_async_replication_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.stop_async_replication(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_stop_async_replication_rest_required_fields(
    request_type=compute.StopAsyncReplicationDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).stop_async_replication._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).stop_async_replication._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.stop_async_replication(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_stop_async_replication_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.stop_async_replication._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_stop_async_replication_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_stop_async_replication"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_stop_async_replication"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.StopAsyncReplicationDiskRequest.pb(
            compute.StopAsyncReplicationDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.StopAsyncReplicationDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.stop_async_replication(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_stop_async_replication_rest_bad_request(
    transport: str = "rest", request_type=compute.StopAsyncReplicationDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.stop_async_replication(request)


def test_stop_async_replication_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.stop_async_replication(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/stopAsyncReplication"
            % client.transport._host,
            args[1],
        )


def test_stop_async_replication_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.stop_async_replication(
            compute.StopAsyncReplicationDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
        )


def test_stop_async_replication_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.StopAsyncReplicationDiskRequest,
        dict,
    ],
)
def test_stop_async_replication_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.stop_async_replication_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_stop_async_replication_unary_rest_required_fields(
    request_type=compute.StopAsyncReplicationDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).stop_async_replication._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).stop_async_replication._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.stop_async_replication_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_stop_async_replication_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.stop_async_replication._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disk",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_stop_async_replication_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_stop_async_replication"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_stop_async_replication"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.StopAsyncReplicationDiskRequest.pb(
            compute.StopAsyncReplicationDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.StopAsyncReplicationDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.stop_async_replication_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_stop_async_replication_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.StopAsyncReplicationDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.stop_async_replication_unary(request)


def test_stop_async_replication_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.stop_async_replication_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}/stopAsyncReplication"
            % client.transport._host,
            args[1],
        )


def test_stop_async_replication_unary_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.stop_async_replication_unary(
            compute.StopAsyncReplicationDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
        )


def test_stop_async_replication_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.StopGroupAsyncReplicationDiskRequest,
        dict,
    ],
)
def test_stop_group_async_replication_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["disks_stop_group_async_replication_resource_resource"] = {
        "resource_policy": "resource_policy_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.stop_group_async_replication(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_stop_group_async_replication_rest_required_fields(
    request_type=compute.StopGroupAsyncReplicationDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).stop_group_async_replication._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).stop_group_async_replication._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.stop_group_async_replication(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_stop_group_async_replication_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.stop_group_async_replication._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disksStopGroupAsyncReplicationResourceResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_stop_group_async_replication_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_stop_group_async_replication"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_stop_group_async_replication"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.StopGroupAsyncReplicationDiskRequest.pb(
            compute.StopGroupAsyncReplicationDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.StopGroupAsyncReplicationDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.stop_group_async_replication(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_stop_group_async_replication_rest_bad_request(
    transport: str = "rest", request_type=compute.StopGroupAsyncReplicationDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["disks_stop_group_async_replication_resource_resource"] = {
        "resource_policy": "resource_policy_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.stop_group_async_replication(request)


def test_stop_group_async_replication_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disks_stop_group_async_replication_resource_resource=compute.DisksStopGroupAsyncReplicationResource(
                resource_policy="resource_policy_value"
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.stop_group_async_replication(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/stopGroupAsyncReplication"
            % client.transport._host,
            args[1],
        )


def test_stop_group_async_replication_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.stop_group_async_replication(
            compute.StopGroupAsyncReplicationDiskRequest(),
            project="project_value",
            zone="zone_value",
            disks_stop_group_async_replication_resource_resource=compute.DisksStopGroupAsyncReplicationResource(
                resource_policy="resource_policy_value"
            ),
        )


def test_stop_group_async_replication_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.StopGroupAsyncReplicationDiskRequest,
        dict,
    ],
)
def test_stop_group_async_replication_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["disks_stop_group_async_replication_resource_resource"] = {
        "resource_policy": "resource_policy_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.stop_group_async_replication_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_stop_group_async_replication_unary_rest_required_fields(
    request_type=compute.StopGroupAsyncReplicationDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).stop_group_async_replication._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).stop_group_async_replication._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(("request_id",))
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.stop_group_async_replication_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_stop_group_async_replication_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.stop_group_async_replication._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(("requestId",))
        & set(
            (
                "disksStopGroupAsyncReplicationResourceResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_stop_group_async_replication_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_stop_group_async_replication"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_stop_group_async_replication"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.StopGroupAsyncReplicationDiskRequest.pb(
            compute.StopGroupAsyncReplicationDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.StopGroupAsyncReplicationDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.stop_group_async_replication_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_stop_group_async_replication_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.StopGroupAsyncReplicationDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2"}
    request_init["disks_stop_group_async_replication_resource_resource"] = {
        "resource_policy": "resource_policy_value"
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.stop_group_async_replication_unary(request)


def test_stop_group_async_replication_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disks_stop_group_async_replication_resource_resource=compute.DisksStopGroupAsyncReplicationResource(
                resource_policy="resource_policy_value"
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.stop_group_async_replication_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/stopGroupAsyncReplication"
            % client.transport._host,
            args[1],
        )


def test_stop_group_async_replication_unary_rest_flattened_error(
    transport: str = "rest",
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.stop_group_async_replication_unary(
            compute.StopGroupAsyncReplicationDiskRequest(),
            project="project_value",
            zone="zone_value",
            disks_stop_group_async_replication_resource_resource=compute.DisksStopGroupAsyncReplicationResource(
                resource_policy="resource_policy_value"
            ),
        )


def test_stop_group_async_replication_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.TestIamPermissionsDiskRequest,
        dict,
    ],
)
def test_test_iam_permissions_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "resource": "sample3"}
    request_init["test_permissions_request_resource"] = {
        "permissions": ["permissions_value1", "permissions_value2"]
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.TestPermissionsResponse(
            permissions=["permissions_value"],
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.TestPermissionsResponse.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.test_iam_permissions(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.TestPermissionsResponse)
    assert response.permissions == ["permissions_value"]


def test_test_iam_permissions_rest_required_fields(
    request_type=compute.TestIamPermissionsDiskRequest,
):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["project"] = ""
    request_init["resource"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).test_iam_permissions._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["project"] = "project_value"
    jsonified_request["resource"] = "resource_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).test_iam_permissions._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "resource" in jsonified_request
    assert jsonified_request["resource"] == "resource_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.TestPermissionsResponse()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "post",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.TestPermissionsResponse.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.test_iam_permissions(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_test_iam_permissions_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.test_iam_permissions._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(())
        & set(
            (
                "project",
                "resource",
                "testPermissionsRequestResource",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_test_iam_permissions_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_test_iam_permissions"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_test_iam_permissions"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.TestIamPermissionsDiskRequest.pb(
            compute.TestIamPermissionsDiskRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.TestPermissionsResponse.to_json(
            compute.TestPermissionsResponse()
        )

        request = compute.TestIamPermissionsDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.TestPermissionsResponse()

        client.test_iam_permissions(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_test_iam_permissions_rest_bad_request(
    transport: str = "rest", request_type=compute.TestIamPermissionsDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "resource": "sample3"}
    request_init["test_permissions_request_resource"] = {
        "permissions": ["permissions_value1", "permissions_value2"]
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.test_iam_permissions(request)


def test_test_iam_permissions_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.TestPermissionsResponse()

        # get arguments that satisfy an http rule for this method
        sample_request = {
            "project": "sample1",
            "zone": "sample2",
            "resource": "sample3",
        }

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            resource="resource_value",
            test_permissions_request_resource=compute.TestPermissionsRequest(
                permissions=["permissions_value"]
            ),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.TestPermissionsResponse.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.test_iam_permissions(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{resource}/testIamPermissions"
            % client.transport._host,
            args[1],
        )


def test_test_iam_permissions_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.test_iam_permissions(
            compute.TestIamPermissionsDiskRequest(),
            project="project_value",
            zone="zone_value",
            resource="resource_value",
            test_permissions_request_resource=compute.TestPermissionsRequest(
                permissions=["permissions_value"]
            ),
        )


def test_test_iam_permissions_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.UpdateDiskRequest,
        dict,
    ],
)
def test_update_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disk_resource"] = {
        "architecture": "architecture_value",
        "async_primary_disk": {
            "consistency_group_policy": "consistency_group_policy_value",
            "consistency_group_policy_id": "consistency_group_policy_id_value",
            "disk": "disk_value",
            "disk_id": "disk_id_value",
        },
        "async_secondary_disks": {},
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "guest_os_features": [{"type_": "type__value"}],
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "last_attach_timestamp": "last_attach_timestamp_value",
        "last_detach_timestamp": "last_detach_timestamp_value",
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "options": "options_value",
        "params": {"resource_manager_tags": {}},
        "physical_block_size_bytes": 2663,
        "provisioned_iops": 1740,
        "provisioned_throughput": 2411,
        "region": "region_value",
        "replica_zones": ["replica_zones_value1", "replica_zones_value2"],
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"],
        "resource_status": {
            "async_primary_disk": {"state": "state_value"},
            "async_secondary_disks": {},
        },
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "size_gb": 739,
        "source_consistency_group_policy": "source_consistency_group_policy_value",
        "source_consistency_group_policy_id": "source_consistency_group_policy_id_value",
        "source_disk": "source_disk_value",
        "source_disk_id": "source_disk_id_value",
        "source_image": "source_image_value",
        "source_image_encryption_key": {},
        "source_image_id": "source_image_id_value",
        "source_snapshot": "source_snapshot_value",
        "source_snapshot_encryption_key": {},
        "source_snapshot_id": "source_snapshot_id_value",
        "source_storage_object": "source_storage_object_value",
        "status": "status_value",
        "type_": "type__value",
        "users": ["users_value1", "users_value2"],
        "zone": "zone_value",
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.update(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, extended_operation.ExtendedOperation)
    assert response.client_operation_id == "client_operation_id_value"
    assert response.creation_timestamp == "creation_timestamp_value"
    assert response.description == "description_value"
    assert response.end_time == "end_time_value"
    assert response.http_error_message == "http_error_message_value"
    assert response.http_error_status_code == 2374
    assert response.id == 205
    assert response.insert_time == "insert_time_value"
    assert response.kind == "kind_value"
    assert response.name == "name_value"
    assert response.operation_group_id == "operation_group_id_value"
    assert response.operation_type == "operation_type_value"
    assert response.progress == 885
    assert response.region == "region_value"
    assert response.self_link == "self_link_value"
    assert response.start_time == "start_time_value"
    assert response.status == compute.Operation.Status.DONE
    assert response.status_message == "status_message_value"
    assert response.target_id == 947
    assert response.target_link == "target_link_value"
    assert response.user == "user_value"
    assert response.zone == "zone_value"


def test_update_rest_required_fields(request_type=compute.UpdateDiskRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).update._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).update._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(
        (
            "paths",
            "request_id",
            "update_mask",
        )
    )
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "patch",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.update(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_update_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.update._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(
            (
                "paths",
                "requestId",
                "updateMask",
            )
        )
        & set(
            (
                "disk",
                "diskResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_update_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_update"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_update"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.UpdateDiskRequest.pb(compute.UpdateDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.UpdateDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.update(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_update_rest_bad_request(
    transport: str = "rest", request_type=compute.UpdateDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disk_resource"] = {
        "architecture": "architecture_value",
        "async_primary_disk": {
            "consistency_group_policy": "consistency_group_policy_value",
            "consistency_group_policy_id": "consistency_group_policy_id_value",
            "disk": "disk_value",
            "disk_id": "disk_id_value",
        },
        "async_secondary_disks": {},
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "guest_os_features": [{"type_": "type__value"}],
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "last_attach_timestamp": "last_attach_timestamp_value",
        "last_detach_timestamp": "last_detach_timestamp_value",
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "options": "options_value",
        "params": {"resource_manager_tags": {}},
        "physical_block_size_bytes": 2663,
        "provisioned_iops": 1740,
        "provisioned_throughput": 2411,
        "region": "region_value",
        "replica_zones": ["replica_zones_value1", "replica_zones_value2"],
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"],
        "resource_status": {
            "async_primary_disk": {"state": "state_value"},
            "async_secondary_disks": {},
        },
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "size_gb": 739,
        "source_consistency_group_policy": "source_consistency_group_policy_value",
        "source_consistency_group_policy_id": "source_consistency_group_policy_id_value",
        "source_disk": "source_disk_value",
        "source_disk_id": "source_disk_id_value",
        "source_image": "source_image_value",
        "source_image_encryption_key": {},
        "source_image_id": "source_image_id_value",
        "source_snapshot": "source_snapshot_value",
        "source_snapshot_encryption_key": {},
        "source_snapshot_id": "source_snapshot_id_value",
        "source_storage_object": "source_storage_object_value",
        "status": "status_value",
        "type_": "type__value",
        "users": ["users_value1", "users_value2"],
        "zone": "zone_value",
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.update(request)


def test_update_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disk_resource=compute.Disk(architecture="architecture_value"),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.update(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}"
            % client.transport._host,
            args[1],
        )


def test_update_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.update(
            compute.UpdateDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disk_resource=compute.Disk(architecture="architecture_value"),
        )


def test_update_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        compute.UpdateDiskRequest,
        dict,
    ],
)
def test_update_unary_rest(request_type):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disk_resource"] = {
        "architecture": "architecture_value",
        "async_primary_disk": {
            "consistency_group_policy": "consistency_group_policy_value",
            "consistency_group_policy_id": "consistency_group_policy_id_value",
            "disk": "disk_value",
            "disk_id": "disk_id_value",
        },
        "async_secondary_disks": {},
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "guest_os_features": [{"type_": "type__value"}],
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "last_attach_timestamp": "last_attach_timestamp_value",
        "last_detach_timestamp": "last_detach_timestamp_value",
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "options": "options_value",
        "params": {"resource_manager_tags": {}},
        "physical_block_size_bytes": 2663,
        "provisioned_iops": 1740,
        "provisioned_throughput": 2411,
        "region": "region_value",
        "replica_zones": ["replica_zones_value1", "replica_zones_value2"],
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"],
        "resource_status": {
            "async_primary_disk": {"state": "state_value"},
            "async_secondary_disks": {},
        },
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "size_gb": 739,
        "source_consistency_group_policy": "source_consistency_group_policy_value",
        "source_consistency_group_policy_id": "source_consistency_group_policy_id_value",
        "source_disk": "source_disk_value",
        "source_disk_id": "source_disk_id_value",
        "source_image": "source_image_value",
        "source_image_encryption_key": {},
        "source_image_id": "source_image_id_value",
        "source_snapshot": "source_snapshot_value",
        "source_snapshot_encryption_key": {},
        "source_snapshot_id": "source_snapshot_id_value",
        "source_storage_object": "source_storage_object_value",
        "status": "status_value",
        "type_": "type__value",
        "users": ["users_value1", "users_value2"],
        "zone": "zone_value",
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation(
            client_operation_id="client_operation_id_value",
            creation_timestamp="creation_timestamp_value",
            description="description_value",
            end_time="end_time_value",
            http_error_message="http_error_message_value",
            http_error_status_code=2374,
            id=205,
            insert_time="insert_time_value",
            kind="kind_value",
            name="name_value",
            operation_group_id="operation_group_id_value",
            operation_type="operation_type_value",
            progress=885,
            region="region_value",
            self_link="self_link_value",
            start_time="start_time_value",
            status=compute.Operation.Status.DONE,
            status_message="status_message_value",
            target_id=947,
            target_link="target_link_value",
            user="user_value",
            zone="zone_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.update_unary(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, compute.Operation)


def test_update_unary_rest_required_fields(request_type=compute.UpdateDiskRequest):
    transport_class = transports.DisksRestTransport

    request_init = {}
    request_init["disk"] = ""
    request_init["project"] = ""
    request_init["zone"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(
            pb_request,
            including_default_value_fields=False,
            use_integers_for_enums=False,
        )
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).update._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["disk"] = "disk_value"
    jsonified_request["project"] = "project_value"
    jsonified_request["zone"] = "zone_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).update._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(
        (
            "paths",
            "request_id",
            "update_mask",
        )
    )
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "disk" in jsonified_request
    assert jsonified_request["disk"] == "disk_value"
    assert "project" in jsonified_request
    assert jsonified_request["project"] == "project_value"
    assert "zone" in jsonified_request
    assert jsonified_request["zone"] == "zone_value"

    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = compute.Operation()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "patch",
                "query_params": pb_request,
            }
            transcode_result["body"] = pb_request
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            pb_return_value = compute.Operation.pb(return_value)
            json_return_value = json_format.MessageToJson(pb_return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.update_unary(request)

            expected_params = []
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_update_unary_rest_unset_required_fields():
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.update._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(
            (
                "paths",
                "requestId",
                "updateMask",
            )
        )
        & set(
            (
                "disk",
                "diskResource",
                "project",
                "zone",
            )
        )
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_update_unary_rest_interceptors(null_interceptor):
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None if null_interceptor else transports.DisksRestInterceptor(),
    )
    client = DisksClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.DisksRestInterceptor, "post_update"
    ) as post, mock.patch.object(
        transports.DisksRestInterceptor, "pre_update"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = compute.UpdateDiskRequest.pb(compute.UpdateDiskRequest())
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = compute.Operation.to_json(compute.Operation())

        request = compute.UpdateDiskRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = compute.Operation()

        client.update_unary(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_update_unary_rest_bad_request(
    transport: str = "rest", request_type=compute.UpdateDiskRequest
):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"project": "sample1", "zone": "sample2", "disk": "sample3"}
    request_init["disk_resource"] = {
        "architecture": "architecture_value",
        "async_primary_disk": {
            "consistency_group_policy": "consistency_group_policy_value",
            "consistency_group_policy_id": "consistency_group_policy_id_value",
            "disk": "disk_value",
            "disk_id": "disk_id_value",
        },
        "async_secondary_disks": {},
        "creation_timestamp": "creation_timestamp_value",
        "description": "description_value",
        "disk_encryption_key": {
            "kms_key_name": "kms_key_name_value",
            "kms_key_service_account": "kms_key_service_account_value",
            "raw_key": "raw_key_value",
            "rsa_encrypted_key": "rsa_encrypted_key_value",
            "sha256": "sha256_value",
        },
        "guest_os_features": [{"type_": "type__value"}],
        "id": 205,
        "kind": "kind_value",
        "label_fingerprint": "label_fingerprint_value",
        "labels": {},
        "last_attach_timestamp": "last_attach_timestamp_value",
        "last_detach_timestamp": "last_detach_timestamp_value",
        "license_codes": [1361, 1362],
        "licenses": ["licenses_value1", "licenses_value2"],
        "location_hint": "location_hint_value",
        "name": "name_value",
        "options": "options_value",
        "params": {"resource_manager_tags": {}},
        "physical_block_size_bytes": 2663,
        "provisioned_iops": 1740,
        "provisioned_throughput": 2411,
        "region": "region_value",
        "replica_zones": ["replica_zones_value1", "replica_zones_value2"],
        "resource_policies": ["resource_policies_value1", "resource_policies_value2"],
        "resource_status": {
            "async_primary_disk": {"state": "state_value"},
            "async_secondary_disks": {},
        },
        "satisfies_pzs": True,
        "self_link": "self_link_value",
        "size_gb": 739,
        "source_consistency_group_policy": "source_consistency_group_policy_value",
        "source_consistency_group_policy_id": "source_consistency_group_policy_id_value",
        "source_disk": "source_disk_value",
        "source_disk_id": "source_disk_id_value",
        "source_image": "source_image_value",
        "source_image_encryption_key": {},
        "source_image_id": "source_image_id_value",
        "source_snapshot": "source_snapshot_value",
        "source_snapshot_encryption_key": {},
        "source_snapshot_id": "source_snapshot_id_value",
        "source_storage_object": "source_storage_object_value",
        "status": "status_value",
        "type_": "type__value",
        "users": ["users_value1", "users_value2"],
        "zone": "zone_value",
    }
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.update_unary(request)


def test_update_unary_rest_flattened():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = compute.Operation()

        # get arguments that satisfy an http rule for this method
        sample_request = {"project": "sample1", "zone": "sample2", "disk": "sample3"}

        # get truthy value for each flattened field
        mock_args = dict(
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disk_resource=compute.Disk(architecture="architecture_value"),
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        pb_return_value = compute.Operation.pb(return_value)
        json_return_value = json_format.MessageToJson(pb_return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.update_unary(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/compute/v1/projects/{project}/zones/{zone}/disks/{disk}"
            % client.transport._host,
            args[1],
        )


def test_update_unary_rest_flattened_error(transport: str = "rest"):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.update_unary(
            compute.UpdateDiskRequest(),
            project="project_value",
            zone="zone_value",
            disk="disk_value",
            disk_resource=compute.Disk(architecture="architecture_value"),
        )


def test_update_unary_rest_error():
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


def test_credentials_transport_error():
    # It is an error to provide credentials and a transport instance.
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    with pytest.raises(ValueError):
        client = DisksClient(
            credentials=ga_credentials.AnonymousCredentials(),
            transport=transport,
        )

    # It is an error to provide a credentials file and a transport instance.
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    with pytest.raises(ValueError):
        client = DisksClient(
            client_options={"credentials_file": "credentials.json"},
            transport=transport,
        )

    # It is an error to provide an api_key and a transport instance.
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    options = client_options.ClientOptions()
    options.api_key = "api_key"
    with pytest.raises(ValueError):
        client = DisksClient(
            client_options=options,
            transport=transport,
        )

    # It is an error to provide an api_key and a credential.
    options = mock.Mock()
    options.api_key = "api_key"
    with pytest.raises(ValueError):
        client = DisksClient(
            client_options=options, credentials=ga_credentials.AnonymousCredentials()
        )

    # It is an error to provide scopes and a transport instance.
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    with pytest.raises(ValueError):
        client = DisksClient(
            client_options={"scopes": ["1", "2"]},
            transport=transport,
        )


def test_transport_instance():
    # A client may be instantiated with a custom transport instance.
    transport = transports.DisksRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    client = DisksClient(transport=transport)
    assert client.transport is transport


@pytest.mark.parametrize(
    "transport_class",
    [
        transports.DisksRestTransport,
    ],
)
def test_transport_adc(transport_class):
    # Test default credentials are used if not provided.
    with mock.patch.object(google.auth, "default") as adc:
        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
        transport_class()
        adc.assert_called_once()


@pytest.mark.parametrize(
    "transport_name",
    [
        "rest",
    ],
)
def test_transport_kind(transport_name):
    transport = DisksClient.get_transport_class(transport_name)(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    assert transport.kind == transport_name


def test_disks_base_transport_error():
    # Passing both a credentials object and credentials_file should raise an error
    with pytest.raises(core_exceptions.DuplicateCredentialArgs):
        transport = transports.DisksTransport(
            credentials=ga_credentials.AnonymousCredentials(),
            credentials_file="credentials.json",
        )


def test_disks_base_transport():
    # Instantiate the base transport.
    with mock.patch(
        "google.cloud.compute_v1.services.disks.transports.DisksTransport.__init__"
    ) as Transport:
        Transport.return_value = None
        transport = transports.DisksTransport(
            credentials=ga_credentials.AnonymousCredentials(),
        )

    # Every method on the transport should just blindly
    # raise NotImplementedError.
    methods = (
        "add_resource_policies",
        "aggregated_list",
        "bulk_insert",
        "create_snapshot",
        "delete",
        "get",
        "get_iam_policy",
        "insert",
        "list",
        "remove_resource_policies",
        "resize",
        "set_iam_policy",
        "set_labels",
        "start_async_replication",
        "stop_async_replication",
        "stop_group_async_replication",
        "test_iam_permissions",
        "update",
    )
    for method in methods:
        with pytest.raises(NotImplementedError):
            getattr(transport, method)(request=object())

    with pytest.raises(NotImplementedError):
        transport.close()

    # Catch all for all remaining methods and properties
    remainder = [
        "kind",
    ]
    for r in remainder:
        with pytest.raises(NotImplementedError):
            getattr(transport, r)()


def test_disks_base_transport_with_credentials_file():
    # Instantiate the base transport with a credentials file
    with mock.patch.object(
        google.auth, "load_credentials_from_file", autospec=True
    ) as load_creds, mock.patch(
        "google.cloud.compute_v1.services.disks.transports.DisksTransport._prep_wrapped_messages"
    ) as Transport:
        Transport.return_value = None
        load_creds.return_value = (ga_credentials.AnonymousCredentials(), None)
        transport = transports.DisksTransport(
            credentials_file="credentials.json",
            quota_project_id="octopus",
        )
        load_creds.assert_called_once_with(
            "credentials.json",
            scopes=None,
            default_scopes=(
                "https://www.googleapis.com/auth/compute",
                "https://www.googleapis.com/auth/cloud-platform",
            ),
            quota_project_id="octopus",
        )


def test_disks_base_transport_with_adc():
    # Test the default credentials are used if credentials and credentials_file are None.
    with mock.patch.object(google.auth, "default", autospec=True) as adc, mock.patch(
        "google.cloud.compute_v1.services.disks.transports.DisksTransport._prep_wrapped_messages"
    ) as Transport:
        Transport.return_value = None
        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
        transport = transports.DisksTransport()
        adc.assert_called_once()


def test_disks_auth_adc():
    # If no credentials are provided, we should use ADC credentials.
    with mock.patch.object(google.auth, "default", autospec=True) as adc:
        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
        DisksClient()
        adc.assert_called_once_with(
            scopes=None,
            default_scopes=(
                "https://www.googleapis.com/auth/compute",
                "https://www.googleapis.com/auth/cloud-platform",
            ),
            quota_project_id=None,
        )


def test_disks_http_transport_client_cert_source_for_mtls():
    cred = ga_credentials.AnonymousCredentials()
    with mock.patch(
        "google.auth.transport.requests.AuthorizedSession.configure_mtls_channel"
    ) as mock_configure_mtls_channel:
        transports.DisksRestTransport(
            credentials=cred, client_cert_source_for_mtls=client_cert_source_callback
        )
        mock_configure_mtls_channel.assert_called_once_with(client_cert_source_callback)


@pytest.mark.parametrize(
    "transport_name",
    [
        "rest",
    ],
)
def test_disks_host_no_port(transport_name):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        client_options=client_options.ClientOptions(
            api_endpoint="compute.googleapis.com"
        ),
        transport=transport_name,
    )
    assert client.transport._host == (
        "compute.googleapis.com:443"
        if transport_name in ["grpc", "grpc_asyncio"]
        else "https://compute.googleapis.com"
    )


@pytest.mark.parametrize(
    "transport_name",
    [
        "rest",
    ],
)
def test_disks_host_with_port(transport_name):
    client = DisksClient(
        credentials=ga_credentials.AnonymousCredentials(),
        client_options=client_options.ClientOptions(
            api_endpoint="compute.googleapis.com:8000"
        ),
        transport=transport_name,
    )
    assert client.transport._host == (
        "compute.googleapis.com:8000"
        if transport_name in ["grpc", "grpc_asyncio"]
        else "https://compute.googleapis.com:8000"
    )


@pytest.mark.parametrize(
    "transport_name",
    [
        "rest",
    ],
)
def test_disks_client_transport_session_collision(transport_name):
    creds1 = ga_credentials.AnonymousCredentials()
    creds2 = ga_credentials.AnonymousCredentials()
    client1 = DisksClient(
        credentials=creds1,
        transport=transport_name,
    )
    client2 = DisksClient(
        credentials=creds2,
        transport=transport_name,
    )
    session1 = client1.transport.add_resource_policies._session
    session2 = client2.transport.add_resource_policies._session
    assert session1 != session2
    session1 = client1.transport.aggregated_list._session
    session2 = client2.transport.aggregated_list._session
    assert session1 != session2
    session1 = client1.transport.bulk_insert._session
    session2 = client2.transport.bulk_insert._session
    assert session1 != session2
    session1 = client1.transport.create_snapshot._session
    session2 = client2.transport.create_snapshot._session
    assert session1 != session2
    session1 = client1.transport.delete._session
    session2 = client2.transport.delete._session
    assert session1 != session2
    session1 = client1.transport.get._session
    session2 = client2.transport.get._session
    assert session1 != session2
    session1 = client1.transport.get_iam_policy._session
    session2 = client2.transport.get_iam_policy._session
    assert session1 != session2
    session1 = client1.transport.insert._session
    session2 = client2.transport.insert._session
    assert session1 != session2
    session1 = client1.transport.list._session
    session2 = client2.transport.list._session
    assert session1 != session2
    session1 = client1.transport.remove_resource_policies._session
    session2 = client2.transport.remove_resource_policies._session
    assert session1 != session2
    session1 = client1.transport.resize._session
    session2 = client2.transport.resize._session
    assert session1 != session2
    session1 = client1.transport.set_iam_policy._session
    session2 = client2.transport.set_iam_policy._session
    assert session1 != session2
    session1 = client1.transport.set_labels._session
    session2 = client2.transport.set_labels._session
    assert session1 != session2
    session1 = client1.transport.start_async_replication._session
    session2 = client2.transport.start_async_replication._session
    assert session1 != session2
    session1 = client1.transport.stop_async_replication._session
    session2 = client2.transport.stop_async_replication._session
    assert session1 != session2
    session1 = client1.transport.stop_group_async_replication._session
    session2 = client2.transport.stop_group_async_replication._session
    assert session1 != session2
    session1 = client1.transport.test_iam_permissions._session
    session2 = client2.transport.test_iam_permissions._session
    assert session1 != session2
    session1 = client1.transport.update._session
    session2 = client2.transport.update._session
    assert session1 != session2


def test_common_billing_account_path():
    billing_account = "squid"
    expected = "billingAccounts/{billing_account}".format(
        billing_account=billing_account,
    )
    actual = DisksClient.common_billing_account_path(billing_account)
    assert expected == actual


def test_parse_common_billing_account_path():
    expected = {
        "billing_account": "clam",
    }
    path = DisksClient.common_billing_account_path(**expected)

    # Check that the path construction is reversible.
    actual = DisksClient.parse_common_billing_account_path(path)
    assert expected == actual


def test_common_folder_path():
    folder = "whelk"
    expected = "folders/{folder}".format(
        folder=folder,
    )
    actual = DisksClient.common_folder_path(folder)
    assert expected == actual


def test_parse_common_folder_path():
    expected = {
        "folder": "octopus",
    }
    path = DisksClient.common_folder_path(**expected)

    # Check that the path construction is reversible.
    actual = DisksClient.parse_common_folder_path(path)
    assert expected == actual


def test_common_organization_path():
    organization = "oyster"
    expected = "organizations/{organization}".format(
        organization=organization,
    )
    actual = DisksClient.common_organization_path(organization)
    assert expected == actual


def test_parse_common_organization_path():
    expected = {
        "organization": "nudibranch",
    }
    path = DisksClient.common_organization_path(**expected)

    # Check that the path construction is reversible.
    actual = DisksClient.parse_common_organization_path(path)
    assert expected == actual


def test_common_project_path():
    project = "cuttlefish"
    expected = "projects/{project}".format(
        project=project,
    )
    actual = DisksClient.common_project_path(project)
    assert expected == actual


def test_parse_common_project_path():
    expected = {
        "project": "mussel",
    }
    path = DisksClient.common_project_path(**expected)

    # Check that the path construction is reversible.
    actual = DisksClient.parse_common_project_path(path)
    assert expected == actual


def test_common_location_path():
    project = "winkle"
    location = "nautilus"
    expected = "projects/{project}/locations/{location}".format(
        project=project,
        location=location,
    )
    actual = DisksClient.common_location_path(project, location)
    assert expected == actual


def test_parse_common_location_path():
    expected = {
        "project": "scallop",
        "location": "abalone",
    }
    path = DisksClient.common_location_path(**expected)

    # Check that the path construction is reversible.
    actual = DisksClient.parse_common_location_path(path)
    assert expected == actual


def test_client_with_default_client_info():
    client_info = gapic_v1.client_info.ClientInfo()

    with mock.patch.object(transports.DisksTransport, "_prep_wrapped_messages") as prep:
        client = DisksClient(
            credentials=ga_credentials.AnonymousCredentials(),
            client_info=client_info,
        )
        prep.assert_called_once_with(client_info)

    with mock.patch.object(transports.DisksTransport, "_prep_wrapped_messages") as prep:
        transport_class = DisksClient.get_transport_class()
        transport = transport_class(
            credentials=ga_credentials.AnonymousCredentials(),
            client_info=client_info,
        )
        prep.assert_called_once_with(client_info)


def test_transport_close():
    transports = {
        "rest": "_session",
    }

    for transport, close_name in transports.items():
        client = DisksClient(
            credentials=ga_credentials.AnonymousCredentials(), transport=transport
        )
        with mock.patch.object(
            type(getattr(client.transport, close_name)), "close"
        ) as close:
            with client:
                close.assert_not_called()
            close.assert_called_once()


def test_client_ctx():
    transports = [
        "rest",
    ]
    for transport in transports:
        client = DisksClient(
            credentials=ga_credentials.AnonymousCredentials(), transport=transport
        )
        # Test client calls underlying transport.
        with mock.patch.object(type(client.transport), "close") as close:
            close.assert_not_called()
            with client:
                pass
            close.assert_called()


@pytest.mark.parametrize(
    "client_class,transport_class",
    [
        (DisksClient, transports.DisksRestTransport),
    ],
)
def test_api_key_credentials(client_class, transport_class):
    with mock.patch.object(
        google.auth._default, "get_api_key_credentials", create=True
    ) as get_api_key_credentials:
        mock_cred = mock.Mock()
        get_api_key_credentials.return_value = mock_cred
        options = client_options.ClientOptions()
        options.api_key = "api_key"
        with mock.patch.object(transport_class, "__init__") as patched:
            patched.return_value = None
            client = client_class(client_options=options)
            patched.assert_called_once_with(
                credentials=mock_cred,
                credentials_file=None,
                host=client.DEFAULT_ENDPOINT,
                scopes=None,
                client_cert_source_for_mtls=None,
                quota_project_id=None,
                client_info=transports.base.DEFAULT_CLIENT_INFO,
                always_use_jwt_access=True,
                api_audience=None,
            )
