Question

我如何模拟可迭代项？

尝试测试此方法时：

    def convert_time_field(klass, field, default=None):
        time = GrapheneHelper.get_json_field(klass, field, default)

        if time is None:
            return None
        else:
            return iso8601.parse_date(time)

我的第一个测试返回此错误：TypeError: argument of type 'Mock' is not iterable

    def test_convert_time_field(self):
        """ Return YYYY-MM-DDTHH:MM:FF in iso8601 format """
        time = '2017-09-18T23:09:57Z'
        expected_time = '2017-09-18 23:09:57+00:00'
        mock_klass = Mock()
        self.assertEqual(GrapheneHelper.convert_time_field(mock_klass, time, default=None), expected_time)

在这种情况下，我对嘲笑有什么误解？

Answer 1

我的测试最终改为：

@patch('myModule.myClass')
def test_convert_time_field(self, mock_klass):
    """ Return YYYY-MM-DDTHH:MM:FF in iso8601 format """
    mock_klass.json = {'time_field': '2017-09-18T23:09:33'}
    expected_time = iso8601.parse_date('2017-09-18 23:09:33')

    self.assertEqual(GrapheneHelper.convert_time_field(mock_klass, field='time_field', default=None), expected_time)

TypeError：类型的参数＆＃39; Mock＆＃39;是不可迭代的

1 个答案: