python技术栈之单元测试中mock的使用

# -*-coding:utf-8 -*-

def login():
    # 登录接口，尚未开发完成
    # 登录成功返回：{"result": "success", "message": "登录成功"}
    # 登录失败返回：{"result": "fail", "message":"账号或密码错误"}
    # 登录异常返回：{"code": "404", "message": "找不到页面"}
    # message返回失败原因

    pass


def get_user_info():
    # 根据登录的结果success or fail，判断跳转到对应页面

    result = login()
    print(result)
    try:
        if result["result"] == "success":
            return "登录成功"
        elif result["result"] == "fail":
            return "登录失败"
        else:
            return "未知失败"
    except:
        return "服务端异常"

# -*-coding:utf-8 -*-
from unittest import mock
import unittest
import case

class TestLogin(unittest.TestCase):
    # 单元测试用例

    def test_login_success(self):
        # 测试登录成功场景
        # mock一个支付成功的数据

        case.login = mock.Mock(return_value={"result": "success", "message": "登录成功"})
        # 根据支付结果测试页面跳转
        statues = case.get_user_info()
        self.assertEqual(statues, "登录成功")

    def test_login_fail(self):
        # 测试登录失败场景
        # mock一个登录失败的数据

        case.login = mock.Mock(return_value={"result": "fail", "message": "账号或密码错误"})
        # 根据登录结果测试页面跳转
        statues = case.get_user_info()
        self.assertEqual(statues, "登录失败")

    def test_login_fail2(self):
        # 测试登录失败场景
        # mock一个登录失败的数据

        case.login = mock.Mock(return_value={"result": "", "message": "账号或者密码为空"})
        # 根据登录结果测试页面跳转
        statues = case.get_user_info()
        self.assertEqual(statues, "未知失败")

    def test_login_error(self):
        # 测试登录异常场景
        # mock一个登录异常的数据

        case.login = mock.Mock(return_value={"code": "404", "message": "找不到页面"})
        # 根据登录结果测试页面跳转
        statues = case.get_user_info()
        self.assertEqual(statues, "服务端异常")

if __name__ == "__main__":
    unittest.main()