testwith.py 文件源码

def test_dict_context_manager(self):
        foo = {}
        with patch.dict(foo, {'a': 'b'}):
            self.assertEqual(foo, {'a': 'b'})
        self.assertEqual(foo, {})

        with self.assertRaises(NameError):
            with patch.dict(foo, {'a': 'b'}):
                self.assertEqual(foo, {'a': 'b'})
                raise NameError('Konrad')

        self.assertEqual(foo, {})