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// Copyright 2015 Google Inc. All Rights Reserved.
//
// 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.
package main
import (
"bytes"
"fmt"
"io/ioutil"
"net"
"net/http"
"os"
"testing"
)
type mockTripper struct {
}
func (m *mockTripper) RoundTrip(r *http.Request) (*http.Response, error) {
return &http.Response{StatusCode: 200, Body: ioutil.NopCloser(bytes.NewReader([]byte("{}")))}, nil
}
var mockClient = &http.Client{Transport: &mockTripper{}}
func TestCreateInstanceConfigs(t *testing.T) {
for _, v := range []struct {
desc string
//inputs
dir string
useFuse bool
instances []string
instancesSrc string
// We don't need to check the []instancesConfig return value, we already
// have a TestParseInstanceConfig.
wantErr bool
skipFailedInstanceConfig bool
}{
{
"setting -fuse and -dir",
"dir", true, nil, "", false, false,
}, {
"setting -fuse",
"", true, nil, "", true, false,
}, {
"setting -fuse, -dir, and -instances",
"dir", true, []string{"proj:reg:x"}, "", true, false,
}, {
"setting -fuse, -dir, and -instances_metadata",
"dir", true, nil, "md", true, false,
}, {
"setting -dir and -instances (unix socket)",
"dir", false, []string{"proj:reg:x"}, "", false, false,
}, {
// tests for the case where invalid configs can still exist, when skipped
"setting -dir and -instances (unix socket) w/ something invalid",
"dir", false, []string{"proj:reg:x", "INVALID_PROJECT_STRING"}, "", false, true,
}, {
"Seting -instance (unix socket)",
"", false, []string{"proj:reg:x"}, "", true, false,
}, {
"setting -instance (tcp socket)",
"", false, []string{"proj:reg:x=tcp:1234"}, "", false, false,
}, {
"setting -instance (tcp socket) and -instances_metadata",
"", false, []string{"proj:reg:x=tcp:1234"}, "md", true, false,
}, {
"setting -dir, -instance (tcp socket), and -instances_metadata",
"dir", false, []string{"proj:reg:x=tcp:1234"}, "md", false, false,
}, {
"setting -dir, -instance (unix socket), and -instances_metadata",
"dir", false, []string{"proj:reg:x"}, "md", false, false,
}, {
"setting -dir and -instances_metadata",
"dir", false, nil, "md", false, false,
}, {
"setting -instances_metadata",
"", false, nil, "md", true, false,
},
} {
_, err := CreateInstanceConfigs(v.dir, v.useFuse, v.instances, v.instancesSrc, mockClient, v.skipFailedInstanceConfig)
if v.wantErr {
if err == nil {
t.Errorf("CreateInstanceConfigs passed when %s, wanted error", v.desc)
}
continue
}
if err != nil {
t.Errorf("CreateInstanceConfigs gave error when %s: %v", v.desc, err)
}
}
}
func TestParseInstanceConfig(t *testing.T) {
// sentinel values
var (
anyLoopbackAddress = "<any loopback address>"
wantErr = instanceConfig{"<want error>", "", ""}
)
tcs := []struct {
// inputs
dir, instance string
wantCfg instanceConfig
}{
{
"/x", "domain.com:my-proj:my-reg:my-instance",
instanceConfig{"domain.com:my-proj:my-reg:my-instance", "unix", "/x/domain.com:my-proj:my-reg:my-instance"},
}, {
"/x", "my-proj:my-reg:my-instance",
instanceConfig{"my-proj:my-reg:my-instance", "unix", "/x/my-proj:my-reg:my-instance"},
}, {
"/x", "my-proj:my-reg:my-instance=unix:socket_name",
instanceConfig{"my-proj:my-reg:my-instance", "unix", "/x/socket_name"},
}, {
"/x", "my-proj:my-reg:my-instance=unix:/my/custom/sql-socket",
instanceConfig{"my-proj:my-reg:my-instance", "unix", "/my/custom/sql-socket"},
}, {
"/x", "my-proj:my-reg:my-instance=tcp:1234",
instanceConfig{"my-proj:my-reg:my-instance", "tcp", anyLoopbackAddress},
}, {
"/x", "my-proj:my-reg:my-instance=tcp4:1234",
instanceConfig{"my-proj:my-reg:my-instance", "tcp4", "127.0.0.1:1234"},
}, {
"/x", "my-proj:my-reg:my-instance=tcp6:1234",
instanceConfig{"my-proj:my-reg:my-instance", "tcp6", "[::1]:1234"},
}, {
"/x", "my-proj:my-reg:my-instance=tcp:my-host:1111",
instanceConfig{"my-proj:my-reg:my-instance", "tcp", "my-host:1111"},
}, {
"/x", "my-proj:my-reg:my-instance=",
wantErr,
}, {
"/x", "my-proj:my-reg:my-instance=cool network",
wantErr,
}, {
"/x", "my-proj:my-reg:my-instance=cool network:1234",
wantErr,
}, {
"/x", "my-proj:my-reg:my-instance=oh:so:many:colons",
wantErr,
},
}
for _, tc := range tcs {
t.Run(fmt.Sprintf("parseInstanceConfig(%q, %q)", tc.dir, tc.instance), func(t *testing.T) {
if os.Getenv("EXPECT_IPV4_AND_IPV6") != "true" {
// Skip ipv4 and ipv6 if they are not supported by the machine.
// (assumption is that validNets isn't buggy)
if tc.wantCfg.Network == "tcp4" || tc.wantCfg.Network == "tcp6" {
if !validNets[tc.wantCfg.Network] {
t.Skipf("%q net not supported, skipping", tc.wantCfg.Network)
}
}
}
got, err := parseInstanceConfig(tc.dir, tc.instance, mockClient)
if tc.wantCfg == wantErr {
if err != nil {
return // pass. an error was expected and returned.
}
t.Fatalf("parseInstanceConfig(%s, %s) = %+v, wanted error", tc.dir, tc.instance, got)
}
if err != nil {
t.Fatalf("parseInstanceConfig(%s, %s) had unexpected error: %v", tc.dir, tc.instance, err)
}
if tc.wantCfg.Address == anyLoopbackAddress {
host, _, err := net.SplitHostPort(got.Address)
if err != nil {
t.Fatalf("net.SplitHostPort(%v): %v", got.Address, err)
}
ip := net.ParseIP(host)
if !ip.IsLoopback() {
t.Fatalf("want loopback, got addr: %v", got.Address)
}
// use a placeholder address, so the rest of the config can be compared
got.Address = "<loopback>"
tc.wantCfg.Address = got.Address
}
if got != tc.wantCfg {
t.Errorf("parseInstanceConfig(%s, %s) = %+v, want %+v", tc.dir, tc.instance, got, tc.wantCfg)
}
})
}
}