一、parameterized介绍
Unittest第三方库parameterized类似Python数据驱动模块DDT、Pytest@pytest.mark.parametrize【Pytest篇】装饰器@pytest.mark.parametrize多样参数化（二）Pytest装饰器@pytest.mark.parametrize数据驱动（三）可以实现参数化用户数据驱动，避免写多个方法（冗余）
二、安装
pip install parameterized
三、导入
from parameterized import parameterized,param
四、实例
1、实现2个参数相加等于第3个参数，我们可以看到，参数是以列表形式传入的，根据参数个数，迭代不同次数
代码语言：javascript复制from parameterized import parameterized,param
import unittest
import requests
class Test(unittest.TestCase):
@parameterized.expand([param(1,2,3),param('he','llo','hello')])
def test(self,test1,test2,test3):
self.assertEqual((test1 test2),test3)
if __name__ == '__main__':
unittest.main()
Testing started at 12:36 ...
"C:Program FilesPython35python.exe" "C:Program FilesJetBrainsPyCharm Community Edition 2018.2.4helperspycharm_jb_unittest_runner.py" --path C:/Users/wangli/PycharmProjects/Test/test/test01.py
Launching unittests with arguments python -m unittest C:/Users/wangli/PycharmProjects/Test/test/test01.py in C:UserswangliPycharmProjectsTesttest
Ran 2 tests in 0.001s
OK
Process finished with exit code 02、我们可以通过上面方法实现我们测试用例的迭代，将测试用例的请求参数组装成列表形式，传给@parameterized.expand([参数1，参数2，参数3])，实现测试用例的多次迭代，避免写多个测试方法
代码语言：javascript复制from parameterized import parameterized,param
import unittest
import requests
class Test(unittest.TestCase):
@parameterized.expand([param('url','headers','data1'),param('url','headers','data2')])
def test(self,url,headers,data):
print(url,headers,data)
r=requests.post(url=url,headers=headers,json=data)
if __name__ == '__main__':
unittest.main()
Testing started at 12:46 ...
"C:Program FilesPython35python.exe" "C:Program FilesJetBrainsPyCharm Community Edition 2018.2.4helperspydevpydevd.py" --multiproc --qt-support=auto --client 127.0.0.1 --port 1145 --file "C:Program FilesJetBrainsPyCharm Community Edition 2018.2.4helperspycharm_jb_unittest_runner.py" --path C:/Users/wangli/PycharmProjects/Test/test/test01.py
pydev debugger: process 24756 is connecting
Connected to pydev debugger (build 182.4505.26)
Launching unittests with arguments python -m unittest C:/Users/wangli/PycharmProjects/Test/test/test01.py in C:UserswangliPycharmProjectsTesttest
Ran 2 tests in 0.004s
OK
url headers data1
url headers data2
Process finished with exit code 0
