Python数据驱动工具——DDT

参考链接1：https://www.cnblogs.com/miniren/p/7099187.html

参考链接2：https://www.imooc.com/article/14861

1、安装ddt模块：cmd命令下：pip install ddt
2、用途：结合单元测试unittest去执行用例
3、本质：类的装饰器
4、python 的unittest 没有自带数据驱动功能。所以如果使用unittest，同时又想使用数据驱动，那么就可以使用DDT来完成

import unittest
import ddt
test_case=[{'case_id':1,'title':'正常登录','url':'http://ip:9999/futureloan/mvc/api/member/login','data':{'mobilephone':'13417467890','pwd':'123456'},'method':'get','expected':'10001'},
           {'case_id':2,'title':'密码错误','url':'http://ip:9999/futureloan/mvc/api/member/login','data':{'mobilephone':'13417467890','pwd':'12345678'},'method':'get','expected':'20111'},
           {'case_id':3,'title':'手机号错误','url':'http://ip:9999/futureloan/mvc/api/member/login','data':{'mobilephone':'13417467890666','pwd':'123456'},'method':'get','expected':'20111'},
           {'case_id':4,'title':'密码为空','url':'http://ip:9999/futureloan/mvc/api/member/login','data':{'mobilephone':'13417467890','pwd':''},'method':'get','expected':'20103'},
           {'case_id':5,'title':'手机号为空','url':'http://ip:9999/futureloan/mvc/api/member/login','data':{'mobilephone':'','pwd':'123456'},'method':'post','expected':'2013'}]
@ddt.ddt
class TestCase(unittest.TestCase):

    @ddt.data(test_case)
    def test01(self,data):
        print('-----------用例1-----------')
        print('data:',data)
        # -----------用例1-----------
        # data: [{'method': 'get', 'case_id': 1, 'data': {'pwd': '123456', 'mobilephone': '13417467890'}, 'url': 'http://ip:9999/futureloan/mvc/api/member/login', 'title': '正常登录', 'expected': '10001'}, {'method': 'get', 'case_id': 2, 'data': {'pwd': '12345678', 'mobilephone': '13417467890'}, 'url': 'http://192.168.135.128:9999/futureloan/mvc/api/member/login', 'title': '密码错误', 'expected': '20111'}, {'method': 'get', 'case_id': 3, 'data': {'pwd': '123456', 'mobilephone': '13417467890666'}, 'url': 'http://192.168.135.128:9999/futureloan/mvc/api/member/login', 'title': '手机号错误', 'expected': '20111'}, {'method': 'get', 'case_id': 4, 'data': {'pwd': '', 'mobilephone': '13417467890'}, 'url': 'http://192.168.135.128:9999/futureloan/mvc/api/member/login', 'title': '密码为空', 'expected': '20103'}, {'method': 'post', 'case_id': 5, 'data': {'pwd': '123456', 'mobilephone': ''}, 'url': 'http://192.168.135.128:9999/futureloan/mvc/api/member/login', 'title': '手机号为空', 'expected': '2013'}]


    @ddt.data(*test_case) #@data装饰方法，  加上* 拆分一层（按逗号拆分）
    def test_02(self,data):
         print('-----------用例2-----------')
         print('data:',data)
        # -----------用例2-----------
        # data: {'data': {'mobilephone': '13417467890', 'pwd': '123456'}, 'url': 'http://ip:9999/futureloan/mvc/api/member/login', 'method': 'get', 'expected': '10001', 'case_id': 1, 'title': '正常登录'}
        # -----------用例2-----------
        # data: {'data': {'mobilephone': '13417467890', 'pwd': '12345678'}, 'url': 'http://ip:9999/futureloan/mvc/api/member/login', 'method': 'get', 'expected': '20111', 'case_id': 2, 'title': '密码错误'}
        # -----------用例2-----------
        # data: {'data': {'mobilephone': '13417467890666', 'pwd': '123456'}, 'url': 'http://ip:9999/futureloan/mvc/api/member/login', 'method': 'get', 'expected': '20111', 'case_id': 3, 'title': '手机号错误'}
        # -----------用例2-----------
        # data: {'data': {'mobilephone': '13417467890', 'pwd': ''}, 'url': 'http://ip:9999/futureloan/mvc/api/member/login', 'method': 'get', 'expected': '20103', 'case_id': 4, 'title': '密码为空'}
        # -----------用例2-----------
        # data: {'data': {'mobilephone': '', 'pwd': '123456'}, 'url': 'http://ip:9999/futureloan/mvc/api/member/login', 'method': 'post', 'expected': '2013', 'case_id': 5, 'title': '手机号为空'}



    @ddt.data(*test_case)  #拆分后的数据是字典格式
    @ddt.unpack    #在@data拆分的基础上，再拆分一次，并用等量的变量接收这些数据（如果是字典，需要用key）
    def test_03(self,case_id,title,url,data,method,expected):  #字典格式的数据再次拆分，参数要和测试用例的key一样
        print('-----------用例3-----------')
        print('case_id:',case_id)
        print('title:',title)
        print('url:',url)
        print('data:',data)
        print('method:',method)
        print('excepted:',expected)

# -----------用例3-----------
# case_id: 1
# title: 正常登录
# url: http://ip:9999/futureloan/mvc/api/member/login
# data: {'mobilephone': '13417467890', 'pwd': '123456'}
# method: get
# excepted: 10001
# -----------用例3-----------
# case_id: 2
# title: 密码错误
# url: http://ip:9999/futureloan/mvc/api/member/login
# data: {'mobilephone': '13417467890', 'pwd': '12345678'}
# method: get
# excepted: 20111
# -----------用例3-----------
# case_id: 3
# title: 手机号错误
# url: http://ip:9999/futureloan/mvc/api/member/login
# data: {'mobilephone': '13417467890666', 'pwd': '123456'}
# method: get
# excepted: 20111
# -----------用例3-----------
# case_id: 4
# title: 密码为空
# url: http://ip:9999/futureloan/mvc/api/member/login
# data: {'mobilephone': '13417467890', 'pwd': ''}
# method: get
# excepted: 20103
# -----------用例3-----------
# case_id: 5
# title: 手机号为空
# url: http://ip:9999/futureloan/mvc/api/member/login
# data: {'mobilephone': '', 'pwd': '123456'}
# method: post
# excepted: 2013
if __name__ == '__main__':
    unittest.main()