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Code Issues 32 Releases Wiki Activity

[1.11.x] Fixed #28091 -- Re-raised original exception when closing cursor cleanup fails

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This commit is contained in:
François Freitag
2017-04-18 11:15:42 -07:00
committed by Claude Paroz
parent 5e2bbcd70c
commit 56746fb21f
3 changed files with 25 additions and 2 deletions
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19
tests/backends/tests.py
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@@ -682,6 +682,25 @@ class BackendTestCase(TransactionTestCase):
self.create_squares(args, 'pyformat', multiple=True)
self.assertEqual(Square.objects.count(), 9)
def test_cursor_close_failure_does_not_mask_original_exception(self):
persons = Person.objects.iterator()
def raise_original_exception(*args, **kwargs):
raise Exception('Real exception raised by the database on cursor.execute')
def raise_close_exception():
raise Exception(
'Error when attempting to close the cursor, this exception should not mask the original exception'
)
mock_cursor = connection.chunked_cursor()
mock_cursor.execute = mock.MagicMock(side_effect=raise_original_exception)
mock_cursor.close = mock.MagicMock(side_effect=raise_close_exception)
with self.assertRaisesMessage(Exception, 'Real exception raised by the database on cursor.execute'):
with mock.patch('django.db.connection.create_cursor', return_value=mock_cursor):
list(persons)
def test_unicode_fetches(self):
# fetchone, fetchmany, fetchall return strings as unicode objects #6254
qn = connection.ops.quote_name