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FastAPI（八十四）实战开发《在线课程学习系统》--接口测试

我们在之前讲了单元测试，这次我们分享下一部分接口的接口测试。

那么我们看来看下对应的接口怎么测试。

那么我们去设计对应的登陆用例，由于接口我们之前开发过，我们参照之前的接口开发的代码进行用例设计。

1.登陆用户不存在。

输入参数：

self.parame = {
           "username": "liwanle1i33333",
           "password": "123456"
       }

　　期望：

1 2	`message='用户不存在'` `code=100205`

2.登陆成功

参数：

self.parame = {
            "username": "liwanle1i",
            "password": "123456"
        }

　　预期：

1 2	`message='成功'` `code=200`

3.密码正确再次登陆直接返回之前的token，预期还是一样的。

4.输入密码错误

参数：

self.parame = {
            "username": "liwanle1i",
            "password": "123452336"
        }

　　预期：

1 2	`code=100206` `message='密码错误'`

　　我们设计了四条登陆相关的case，那么对应的完整的case

import unittest, requests
 
class UserLoginCase(unittest.TestCase):
    @classmethod
    def setUpClass(cls) -> None:
 
        cls.url = 'http://127.0.0.1:8000/user/login'
 
    @classmethod
    def tearDownClass(cls) -> None:
        '''
        还原测试环境，测试url
        :return:
        '''
        cls.client = None
        cls.url = ''
 
    def setUp(self) -> None:
        '''
        初始化参数
        :return:
        '''
        self.parame = {
            "username": "liwanle1i",
            "password": "123456"
        }
 
 
    def tearDown(self) -> None:
        '''最后清理参数'''
        self.parame.clear()
 
 
    def test_login_usernot_exict(self):
        parame = {
            "username": "liwanle1i33333",
            "password": "123456"
        }
        reponse = requests.post(self.url, json=parame)
 
        status = reponse.status_code
        reslut = reponse.json()
        self.assertEqual(status, 200)
        self.assertEqual(reslut['code'], 100205)
        self.assertEqual(reslut['message'], '用户不存在')
 
    def test_login_success(self):
        reponse = requests.post(self.url, json=self.parame)
 
        status = reponse.status_code
        reslut = reponse.json()
        self.assertEqual(status, 200)
        self.assertEqual(reslut['code'], 200)
        self.assertEqual(reslut['message'], '成功')
    def test_login_success_two(self):
        reponse = requests.post(self.url, json=self.parame)
 
        status = reponse.status_code
        reslut = reponse.json()
        self.assertEqual(status, 200)
        self.assertEqual(reslut['code'], 200)
        self.assertEqual(reslut['message'], '成功')
 
    def test_login_error(self):
        self.parame['password']='2222222222'
        reponse = requests.post(self.url, json=self.parame)
 
        status = reponse.status_code
        reslut = reponse.json()
        self.assertEqual(status, 200)
        self.assertEqual(reslut['message'], "密码错误")
 
 
if __name__ == "__main__":
    unittest.main()

　　执行结果：

我们来看下我们的测试用例，目前少了二个场景，密码错误超过10次但是时间小于30min，一个是时间大于30min，那么我们如何实现呢，最简单的就是for循环10次，其实这样做不可以，因为没有了，那么应该怎么做呢，我们可以直接这么来做。直接修改redis即可。

def test_log_error_big(self):
        red = redis.Redis(host='localhost', port=6379, db=0)
        red.hset("liwanle1i_password",'num',11)
        red.hset("liwanle1i_password", 'time', "2021-11-17 22:16:57")
        self.parame['password'] = '2222222222'
        reponse = requests.post(self.url, json=self.parame)
 
        status = reponse.status_code
        print(reponse.text)
        reslut = reponse.json()
        self.assertEqual(status, 200)
        self.assertEqual(reslut['code'],100204)
        self.assertEqual(reslut['message'], "输入密码错误次数过多，账号暂时锁定，请30min再来登录")
        red.hdel("liwanle1i_password",'num')
 
    def test_log_error_bigtime(self):
        red = redis.Redis(host='localhost', port=6379, db=0)
        red.hset("liwanle1i_password",'num','1')
        red.hset("liwanle1i_password", 'time', "2021-10-17 22:16:57")
        self.parame['password'] = '2222222222'
        reponse = requests.post(self.url, json=self.parame)
 
        status = reponse.status_code
        print(reponse.text)
        reslut = reponse.json()
        print(reslut)
        self.assertEqual(status, 200)
        self.assertEqual(reslut['message'], "密码错误")
         red.hdel("liwanle1i_password", 'time')
 def test_log_error_bigtime_success(self):
        red = redis.Redis(host='localhost', port=6379, db=0)
        red.hset("liwanle1i_password", 'num', '1')
        red.hset("liwanle1i_password", 'time', "2021-10-17 22:16:57")
        reponse = requests.post(self.url, json=self.parame)
 
        status = reponse.status_code
        print(reponse.text)
        reslut = reponse.json()
        print(reslut)
        self.assertEqual(status, 200)
        self.assertEqual(reslut['message'], "成功")
        red.hdel("liwanle1i_password", 'time')
        red.hdel("liwanle1i_password", 'num')

我们还在增加了一个当有错误密码，但是次数不大于10，时间大于30min的可以正常登陆成功，不过我门也发现了接口存在问题。

@usersRouter.post("/login")
async def login(request: Request, user: UserLogin, db: Session = Depends(get_db)):
    db_crest = get_user_username(db, user.username)
    if not db_crest:
        logger.info("login：" + user.username + "不存在")
        return reponse(code=100205, message='用户不存在', data="")
    verifypassowrd = verify_password(user.password, db_crest.password)
    if verifypassowrd:
        useris = await request.app.state.redis.get(user.username)
        if not useris:
            try:
                token = create_access_token(data={"sub": user.username})
            except Exception as e:
                logger.exception(e)
                return reponse(code=100203, message='产生token失败', data='')
            request.app.state.redis.set(user.username, token, expire=ACCESS_TOKEN_EXPIRE_MINUTES * 60)
            return reponse(code=200, message='成功', data={"token": token})
        return reponse(code=200, message='成功', data={"token": useris})
    else:
        result = await  request.app.state.redis.hgetall(user.username + "_password", encoding='utf8')
        if not result:
            times = datetime.strftime(datetime.now(), "%Y-%m-%d %H:%M:%S")
            request.app.state.redis.hmset_dict(user.username + "_password", num=0, time=times)
            return reponse(code=100206, data='', message='密码错误')
        else: 
          errornum = int(result['num'])
            numtime = (datetime.now() - datetime.strptime(result['time'], '%Y-%m-%d %H:%M:%S')).seconds / 60
            if errornum < 10 and numtime < 30:
                # 更新错误次数
                errornum += 1
                request.app.state.redis.hmset_dict(user.username + "_password", num=errornum)
                return reponse(code=100206, data='', message='密码错误')
            elif errornum < 10 and numtime > 30:
                # 次数置于1，时间设置现在时间
                errornum = 1
                times = datetime.strftime(datetime.now(), "%Y-%m-%d %H:%M:%S")
                request.app.state.redis.hmset_dict(user.username + "_password", num=errornum, time=times)
                return reponse(code=100206, data='', message='密码错误')
            elif errornum > 10 and numtime < 30:
                # 次数设置成最大，返回
                errornum += 1
                request.app.state.redis.hmset_dict(user.username + "_password", num=errornum)
                return reponse(code=100204, message='输入密码错误次数过多，账号暂时锁定，请30min再来登录', data='')
            else:
                errornum = 1
                times = datetime.strftime(datetime.now(), "%Y-%m-%d %H:%M:%S")
                request.app.state.redis.hmset_dict(user.username + "_password", num=errornum, time=times)
                return reponse(code=100206, data='', message='密码错误')