mirror of
https://github.com/django/django.git
synced 2025-10-26 07:06:08 +00:00
41 lines
1.8 KiB
Python
41 lines
1.8 KiB
Python
from unittest import mock, skipUnless
|
|
|
|
from django.db import connection
|
|
from django.db.backends.mysql.features import DatabaseFeatures
|
|
from django.test import TestCase
|
|
|
|
|
|
@skipUnless(connection.vendor == 'mysql', 'MySQL tests')
|
|
class TestFeatures(TestCase):
|
|
|
|
def test_supports_transactions(self):
|
|
"""
|
|
All storage engines except MyISAM support transactions.
|
|
"""
|
|
with mock.patch('django.db.connection.features._mysql_storage_engine', 'InnoDB'):
|
|
self.assertTrue(connection.features.supports_transactions)
|
|
del connection.features.supports_transactions
|
|
with mock.patch('django.db.connection.features._mysql_storage_engine', 'MyISAM'):
|
|
self.assertFalse(connection.features.supports_transactions)
|
|
del connection.features.supports_transactions
|
|
|
|
def test_skip_locked_no_wait(self):
|
|
with mock.MagicMock() as _connection:
|
|
_connection.mysql_version = (8, 0, 1)
|
|
_connection.mysql_is_mariadb = False
|
|
database_features = DatabaseFeatures(_connection)
|
|
self.assertTrue(database_features.has_select_for_update_skip_locked)
|
|
self.assertTrue(database_features.has_select_for_update_nowait)
|
|
with mock.MagicMock() as _connection:
|
|
_connection.mysql_version = (8, 0, 0)
|
|
_connection.mysql_is_mariadb = False
|
|
database_features = DatabaseFeatures(_connection)
|
|
self.assertFalse(database_features.has_select_for_update_skip_locked)
|
|
self.assertFalse(database_features.has_select_for_update_nowait)
|
|
|
|
def test_allows_auto_pk_0(self):
|
|
with mock.MagicMock() as _connection:
|
|
_connection.sql_mode = {'NO_AUTO_VALUE_ON_ZERO'}
|
|
database_features = DatabaseFeatures(_connection)
|
|
self.assertIs(database_features.allows_auto_pk_0, True)
|