serialized_data = serializers.serialize(format, objects, indent=2)
for obj in serializers.deserialize(format, serialized_data):
obj.save()
# Assert that the deserialized data is the same
# as the original source
for (func, pk, klass, datum) in test_data:
func[1](self, pk, klass, datum)
# Assert that the number of objects deserialized is the
# same as the number that was serialized.
for klass, count in instance_count.items():
self.assertEqual(count, klass.objects.count())
serializerTest = skipUnlessDBFeature('supports_binary_field')(serializerTest)
def naturalKeySerializerTest(format, self):
# Create all the objects defined in the test data
objects = []
instance_count = {}
for (func, pk, klass, datum) in natural_key_test_data:
with connection.constraint_checks_disabled():
objects.extend(func[0](pk, klass, datum))
# Get a count of the number of objects created for each class
for klass in instance_count:
instance_count[klass] = klass.objects.count()
# use_natural_keys is deprecated and to be removed in Django 1.9
transaction.enter_transaction_management()
self.assertEqual(connection.isolation_level, self._read_committed)
transaction.leave_transaction_management()
self.assertEqual(connection.isolation_level, self._read_committed)
transaction.leave_transaction_management()
self.assertEqual(connection.isolation_level, self._autocommit)
def tearDown(self):
connections[DEFAULT_DB_ALIAS] = self._old_backend
TestPostgresAutocommit = skipUnless(connection.vendor == 'postgresql',
"This test only valid for PostgreSQL")(TestPostgresAutocommit)
TestPostgresAutoCommit = skipUnlessDBFeature('supports_transactions')(
TestPostgresAutocommit)
class TestManyToManyAddTransaction(TransactionTestCase):
def test_manyrelated_add_commit(self):
"Test for https://code.djangoproject.com/ticket/16818"
a = M2mA.objects.create()
b = M2mB.objects.create(fld=10)
a.others.add(b)
# We're in a TransactionTestCase and have not changed transaction
# behavior from default of "autocommit", so this rollback should not
# actually do anything. If it does in fact undo our add, that's a bug
# that the bulk insert was not auto-committed.
transaction.rollback()
self.assertEqual(a.others.count(), 1)