python接口自动化（二十四）--unittest断言——中（详解）

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简介

　　上一篇通过简单的案例给小伙伴们介绍了一下unittest断言，这篇我们将通过结合和围绕实际的工作来进行unittest的断言。这里以获取城市天气预报的接口为例，设计了 2 个用例，一个是查询北京的天气，一个是查询

南京为例，你也可以查询别的城市的天气预报。

接口文档

1、在实际工作中，开发人员都会给你接口文档方便QA测试，和其他系统的开发人员对接。接口文档如下：

天气预报

获取实时天气

请求方式：POST

请求地址：https://www.apiopen.top/weatherApi

返回示例：

                                {"code": 200,"msg": "成功!","data": {"yesterday": {"date": "14日星期五","high": "高温 7℃","fx": "无持续风向","low": "低温 4℃","fl": "","type": "阴"},"city": "成都","aqi": "89","forecast": [{"date": "15日星期六","high": "高温 10℃","fengli": "","low": "低温 2℃","fengxiang": "无持续风向","type": "多云"},{"date": "16日星期天","high": "高温 15℃","fengli": "","low": "低温 3℃","fengxiang": "无持续风向","type": "晴"},{"date": "17日星期一","high": "高温 14℃","fengli": "","low": "低温 5℃","fengxiang": "无持续风向","type": "晴"},{"date": "18日星期二","high": "高温 11℃","fengli": "","low": "低温 6℃","fengxiang": "无持续风向","type": "多云"},{"date": "19日星期三","high": "高温 12℃","fengli": "","low": "低温 6℃","fengxiang": "无持续风向","type": "多云"}],"ganmao": "昼夜温差较大，较易发生感冒，请适当增减衣服。体质较弱的朋友请注意防护。","wendu": "9"}
}