接口对象封装

代码分层思想

分层思想：将普通思想分为两层，分为接口对象层和测试脚本层
接口对象层：
对接口进行封装，封装好之后，给测试用例调用
面向对象来封装实现
测试用例层：
调用接口对象层封装的方法，拿到响应结果，断言进行接口测试
借助unittest框架实现
封装思想：
将动态变化的数据，设计到方法的参数
将固定不变的，直接写成方法实现
将响应结果，通过返回值传出

封装案例

封装Tpshop商城登录

接口封装

class LoginApi:#发送验证码请求@classmethod      #类方法，不用创建实例，可直接类名调用def get_verify(cls,session):session.get(url='url地址')   #url地址是固定不变的#发送登录请求@classmethoddef post_login(cls,session,data):resp=session.post(url='url地址',data=data)return resp

断言封装

class AssertFeizhuang:def common_assert(self,resp,status_code,status,msg):self.assertEquel(status_code, resp.status_code)self.assertEquel(status, resp.json().get("status"))self.assertEqual(msg, resp.json().get("msg"))

用例优化（前置方法提取）

import unittest
from assert_feizhuang import AssertFeizhuang
from login_api import LoginApi
from assert_feizhuang import AssertFeizhuangclass TestLogin(unittest.TestCase):session=None@classmethoddef setUpClass(cls):cls.session = requests.session()def setUp(self):# 获取验证码LoginApi.get_verify(self.session)def test_login_01(self):"""登录成功"""#登录data={"username":"13800000002","password":"123456","verifyCode":"8888"}resp=LoginApi.post_login(self.session,data)#断言AssertFeizhuang.common_assert(self,resp,200,1,"登录成功")def test_login_02(self):"""手机号不存在"""# 登录data = {"username": "13800123002","password": "123456","verifyCode": "8888"}resp = LoginApi.post_login(self.session, data)# 断言AssertFeizhuang.common_assert(self, resp, 200, -1, "账号不存在")def test_login_03(self):"""密码错误"""# 登录data = {"username": "13800000002","password": "000000","verifyCode": "8888"}resp = LoginApi.post_login(self.session, data)# 断言AssertFeizhuang.common_assert(self, resp, 200, -1, "密码错误")

Tpshop商城登录参数化

参数化实现步骤：
1.导包from parameterized import parameterized
2.在需要参数的方法前一行添加@parameterized.expand(数据)
3.给expand()传入数据，数据格式[(),(),()]
4.修改需要参数的方法，添加形参，个数、顺序与传入数据（）的所有key一一对应
5.在通用测试方法内，使用形参
json数据文件

[{"data": {"username":"13800000002","password":"123456","verifyCode":"8888"},"status_code": 200,"status": 1,"msg": "登录成功"
},{"data": {"username":"13800123002","password":"123456","verifyCode":"8888"},"status_code": 200,"status": -1,"msg": "账号不存在"
}, {"data": {"username":"13800000002","password":"000000","verifyCode":"8888"},"status_code": 200,"status": 1,"msg": "密码错误"}]

读取数据

import json
def get_data(file):with open(file,'r',encoding='utf-8') as f:list=json.load(f)list1=[]for i in list:list1.append(tuple(i.values()))return list1

参数化后用例

import unittest
import requests
from parameterized import parameterized
from get_data import get_data
from login_api import LoginApi
from assert_feizhuang import AssertFeizhuangclass TestLogin(unittest.TestCase):session=None@classmethoddef setUpClass(cls):cls.session = requests.Session()def setUp(self):# 获取验证码LoginApi.get_verify(self.session)@parameterized.expand(get_data('./login.json'))def test_login_01(self,data,status_code,status,msg):"""登录成功"""print(data,status_code,status,msg)#登录resp=LoginApi.post_login(self.session,data)#断言AssertFeizhuang.common_assert(self,resp,status_code,status,msg)