import pytest

from ..random_refs import random_batchref, random_orderid, random_sku

from . import api_client

@pytest.mark.usefixtures('postgres_db')

@pytest.mark.usefixtures('restart_api')

def test_happy_path_returns_202_and_batch_is_allocated():

orderid = random_orderid()

sku, othersku = random_sku(), random_sku('other')

earlybatch = random_batchref(1)

laterbatch = random_batchref(2)

otherbatch = random_batchref(3)

api_client.post_to_add_batch(laterbatch, sku, 100, '2011-01-02')

api_client.post_to_add_batch(earlybatch, sku, 100, '2011-01-01')

api_client.post_to_add_batch(otherbatch, othersku, 100, None)

r = api_client.post_to_allocate(orderid, sku, qty=3)

assert r.status_code == 202

r = api_client.get_allocation(orderid)

assert r.ok

assert r.json() == [

{'sku': sku, 'batchref': earlybatch},

]

@pytest.mark.usefixtures('postgres_db')

@pytest.mark.usefixtures('restart_api')

def test_unhappy_path_returns_400_and_error_message():

unknown_sku, orderid = random_sku(), random_orderid()

r = api_client.post_to_allocate(

orderid, unknown_sku, qty=20, expect_success=False,

)

assert r.status_code == 400

assert r.json()['message'] == f'Invalid sku {unknown_sku}'

r = api_client.get_allocation(orderid)

assert r.status_code == 404