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from unittest import mock, skipUnless
from django.db import connection
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
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