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Code Issues 32 Releases Wiki Activity

Refs #28478 -- Prevented database feature based skipping on tests disallowing queries.

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Database features may require a connection to be established to determine
whether or not they are enabled.
This commit is contained in:
Simon Charette
2019-01-12 16:14:54 -05:00
committed by Tim Graham
parent f5b635086a
commit b181aba7dd
7 changed files with 121 additions and 41 deletions
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33
tests/backends/base/test_operations.py
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@@ -15,12 +15,6 @@ class SimpleDatabaseOperationTests(SimpleTestCase):
def setUp(self):
self.ops = BaseDatabaseOperations(connection=connection)
@skipIfDBFeature('can_distinct_on_fields')
def test_distinct_on_fields(self):
msg = 'DISTINCT ON fields is not supported by this database backend'
with self.assertRaisesMessage(NotSupportedError, msg):
self.ops.distinct_sql(['a', 'b'], None)
def test_deferrable_sql(self):
self.assertEqual(self.ops.deferrable_sql(), '')
@@ -123,6 +117,23 @@ class SimpleDatabaseOperationTests(SimpleTestCase):
with self.assertRaisesMessage(NotImplementedError, self.may_requre_msg % 'datetime_extract_sql'):
self.ops.datetime_extract_sql(None, None, None)
class DatabaseOperationTests(TestCase):
def setUp(self):
self.ops = BaseDatabaseOperations(connection=connection)
@skipIfDBFeature('supports_over_clause')
def test_window_frame_raise_not_supported_error(self):
msg = 'This backend does not support window expressions.'
with self.assertRaisesMessage(NotSupportedError, msg):
self.ops.window_frame_rows_start_end()
@skipIfDBFeature('can_distinct_on_fields')
def test_distinct_on_fields(self):
msg = 'DISTINCT ON fields is not supported by this database backend'
with self.assertRaisesMessage(NotSupportedError, msg):
self.ops.distinct_sql(['a', 'b'], None)
@skipIfDBFeature('supports_temporal_subtraction')
def test_subtract_temporals(self):
duration_field = DurationField()
@@ -133,13 +144,3 @@ class SimpleDatabaseOperationTests(SimpleTestCase):
)
with self.assertRaisesMessage(NotSupportedError, msg):
self.ops.subtract_temporals(duration_field_internal_type, None, None)
class DatabaseOperationTests(TestCase):
# Checking the 'supports_over_clause' feature requires a query for the
# MySQL backend to perform a version check.
@skipIfDBFeature('supports_over_clause')
def test_window_frame_raise_not_supported_error(self):
msg = 'This backend does not support window expressions.'
with self.assertRaisesMessage(NotSupportedError, msg):
connection.ops.window_frame_rows_start_end()