def test_do_reload_skip(self, reload: MagicMock, os_path: MagicMock):
        """
        Should skip reloading the specified module because it hasn't been
        modified and return False.
        """
        target = MagicMock()
        target.__file__ = 'fake'
        os_path.getmtime.return_value = 0
        self.assertFalse(reloading.do_reload(target, 10))
        self.assertEqual(0, reload.call_count)