def test_of_many_with_subclasses(self) -> None:
        '''torment.fixtures.of(( FixtureA, )) == [ fixture_a, ]'''

        class FixtureA(object):
            def __init__(self, context) -> None:
                pass

        class FixtureB(FixtureA):
            pass

        result = fixtures.of(( FixtureA, ))

        self.assertEqual(len(result), 1)
        self.assertIsInstance(result[0], FixtureB)