156 lines
5.1 KiB
Python
156 lines
5.1 KiB
Python
from __future__ import unicode_literals
|
|
|
|
import unittest
|
|
|
|
from django.conf.urls import url
|
|
from django.db import connection, connections, transaction
|
|
from django.http import Http404
|
|
from django.test import TestCase, TransactionTestCase
|
|
from django.utils.decorators import method_decorator
|
|
|
|
from rest_framework import status
|
|
from rest_framework.exceptions import APIException
|
|
from rest_framework.response import Response
|
|
from rest_framework.test import APIRequestFactory
|
|
from rest_framework.views import APIView
|
|
from tests.models import BasicModel
|
|
|
|
factory = APIRequestFactory()
|
|
|
|
|
|
class BasicView(APIView):
|
|
def post(self, request, *args, **kwargs):
|
|
BasicModel.objects.create()
|
|
return Response({'method': 'GET'})
|
|
|
|
|
|
class ErrorView(APIView):
|
|
def post(self, request, *args, **kwargs):
|
|
BasicModel.objects.create()
|
|
raise Exception
|
|
|
|
|
|
class APIExceptionView(APIView):
|
|
def post(self, request, *args, **kwargs):
|
|
BasicModel.objects.create()
|
|
raise APIException
|
|
|
|
|
|
@unittest.skipUnless(
|
|
connection.features.uses_savepoints,
|
|
"'atomic' requires transactions and savepoints."
|
|
)
|
|
class DBTransactionTests(TestCase):
|
|
def setUp(self):
|
|
self.view = BasicView.as_view()
|
|
connections.databases['default']['ATOMIC_REQUESTS'] = True
|
|
|
|
def tearDown(self):
|
|
connections.databases['default']['ATOMIC_REQUESTS'] = False
|
|
|
|
def test_no_exception_commit_transaction(self):
|
|
request = factory.post('/')
|
|
|
|
with self.assertNumQueries(1):
|
|
response = self.view(request)
|
|
self.assertFalse(transaction.get_rollback())
|
|
self.assertEqual(response.status_code, status.HTTP_200_OK)
|
|
assert BasicModel.objects.count() == 1
|
|
|
|
|
|
@unittest.skipUnless(
|
|
connection.features.uses_savepoints,
|
|
"'atomic' requires transactions and savepoints."
|
|
)
|
|
class DBTransactionErrorTests(TestCase):
|
|
def setUp(self):
|
|
self.view = ErrorView.as_view()
|
|
connections.databases['default']['ATOMIC_REQUESTS'] = True
|
|
|
|
def tearDown(self):
|
|
connections.databases['default']['ATOMIC_REQUESTS'] = False
|
|
|
|
def test_generic_exception_delegate_transaction_management(self):
|
|
"""
|
|
Transaction is eventually managed by outer-most transaction atomic
|
|
block. DRF do not try to interfere here.
|
|
|
|
We let django deal with the transaction when it will catch the Exception.
|
|
"""
|
|
request = factory.post('/')
|
|
with self.assertNumQueries(3):
|
|
# 1 - begin savepoint
|
|
# 2 - insert
|
|
# 3 - release savepoint
|
|
with transaction.atomic():
|
|
self.assertRaises(Exception, self.view, request)
|
|
self.assertFalse(transaction.get_rollback())
|
|
assert BasicModel.objects.count() == 1
|
|
|
|
|
|
@unittest.skipUnless(
|
|
connection.features.uses_savepoints,
|
|
"'atomic' requires transactions and savepoints."
|
|
)
|
|
class DBTransactionAPIExceptionTests(TestCase):
|
|
def setUp(self):
|
|
self.view = APIExceptionView.as_view()
|
|
connections.databases['default']['ATOMIC_REQUESTS'] = True
|
|
|
|
def tearDown(self):
|
|
connections.databases['default']['ATOMIC_REQUESTS'] = False
|
|
|
|
def test_api_exception_rollback_transaction(self):
|
|
"""
|
|
Transaction is rollbacked by our transaction atomic block.
|
|
"""
|
|
request = factory.post('/')
|
|
num_queries = (4 if getattr(connection.features,
|
|
'can_release_savepoints', False) else 3)
|
|
with self.assertNumQueries(num_queries):
|
|
# 1 - begin savepoint
|
|
# 2 - insert
|
|
# 3 - rollback savepoint
|
|
# 4 - release savepoint (django>=1.8 only)
|
|
with transaction.atomic():
|
|
response = self.view(request)
|
|
self.assertTrue(transaction.get_rollback())
|
|
self.assertEqual(response.status_code,
|
|
status.HTTP_500_INTERNAL_SERVER_ERROR)
|
|
assert BasicModel.objects.count() == 0
|
|
|
|
|
|
@unittest.skipUnless(
|
|
connection.features.uses_savepoints,
|
|
"'atomic' requires transactions and savepoints."
|
|
)
|
|
class NonAtomicDBTransactionAPIExceptionTests(TransactionTestCase):
|
|
@property
|
|
def urls(self):
|
|
class NonAtomicAPIExceptionView(APIView):
|
|
@method_decorator(transaction.non_atomic_requests)
|
|
def dispatch(self, *args, **kwargs):
|
|
return super(NonAtomicAPIExceptionView, self).dispatch(*args, **kwargs)
|
|
|
|
def get(self, request, *args, **kwargs):
|
|
BasicModel.objects.all()
|
|
raise Http404
|
|
|
|
return (
|
|
url(r'^$', NonAtomicAPIExceptionView.as_view()),
|
|
)
|
|
|
|
def setUp(self):
|
|
connections.databases['default']['ATOMIC_REQUESTS'] = True
|
|
|
|
def tearDown(self):
|
|
connections.databases['default']['ATOMIC_REQUESTS'] = False
|
|
|
|
def test_api_exception_rollback_transaction_non_atomic_view(self):
|
|
response = self.client.get('/')
|
|
|
|
# without checking connection.in_atomic_block view raises 500
|
|
# due attempt to rollback without transaction
|
|
self.assertEqual(response.status_code,
|
|
status.HTTP_404_NOT_FOUND)
|