这篇文章主要介绍了Python中Pytest装饰器@pytest.mark.parametrize有什么用,具有一定借鉴价值,感兴趣的朋友可以参考下,希望大家阅读完这篇文章之后大有收获,下面让小编带着大家一起了解一下。
Pytest中装饰器@pytest.mark.parametrize('参数名',list)可以实现测试用例参数化,类似DDT
如:@pytest.mark.parametrize('请求方式,接口地址,传参,预期结果',[('get','www.baidu.com','{"page":1}','{"code":0,"msg":"成功"})',('post','www.baidu.com','{"page":2}','{"code":0,"msg":"成功"}')])
1、第一个参数是字符串,多个参数中间用逗号隔开
2、第二个参数是list,多组数据用元祖类型;传三个或更多参数也是这样传。list的每个元素都是一个元组,元组里的每个元素和按参数顺序一一对应
3、传一个参数 @pytest.mark.parametrize('参数名',list) 进行参数化
4、传两个参数@pytest.mark.parametrize('参数名1,参数名2',[(参数1_data[0], 参数2_data[0]),(参数1_data[1], 参数2_data[1])]) 进行参数化
import pytest #单参数单值 @pytest.mark.parametrize("user",["18221124104"]) def test(user): print(user) assert user=="18221124104" "C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/test/test03.py ============================= test session starts ============================= platform win32 -- Python 3.5.2, pytest-5.1.2, py-1.8.0, pluggy-0.12.0 rootdir: C:\Users\wangli\PycharmProjects\Test\test collected 1 item test03.py 18221124104 . ============================== 1 passed in 0.15s ============================== Process finished with exit code 0 #单参数多值 @pytest.mark.parametrize("user",["18221124104","18200000000","18200000001"]) def test(user): print(user) assert user=="18221124104" "C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/test/test03.py ============================= test session starts ============================= platform win32 -- Python 3.5.2, pytest-5.1.2, py-1.8.0, pluggy-0.12.0 rootdir: C:\Users\wangli\PycharmProjects\Test\test collected 3 items test03.py 18221124104 .18200000000 F18200000001 F ================================== FAILURES =================================== ______________________________ test[18200000000] ______________________________ user = '18200000000' @pytest.mark.parametrize("user",["18221124104","18200000000","18200000001"]) def test(user): print(user) > assert user=="18221124104" E AssertionError test03.py:74: AssertionError ______________________________ test[18200000001] ______________________________ user = '18200000001' @pytest.mark.parametrize("user",["18221124104","18200000000","18200000001"]) def test(user): print(user) > assert user=="18221124104" E AssertionError test03.py:74: AssertionError ========================= 2 failed, 1 passed in 0.21s ========================= Process finished with exit code 0 #多参数多值 @pytest.mark.parametrize("user,pwd",[("18221124104",111111),("18200000000",111111)]) def test(user,pwd): print(user,pwd) "C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/test/test03.py ============================= test session starts ============================= platform win32 -- Python 3.5.2, pytest-5.1.2, py-1.8.0, pluggy-0.12.0 rootdir: C:\Users\wangli\PycharmProjects\Test\test collected 2 items test03.py 18221124104 111111 .18200000000 111111 . ============================== 2 passed in 0.03s ============================== Process finished with exit code 0 # 使用内置的mark.xfail标记为失败的用例就不运行了,直接跳过显示xfailed @pytest.mark.parametrize("user,pwd",[("18221124104",111111),pytest.param("18200000000",111111,marks=pytest.mark.xfail)]) def test(user,pwd): print(user,pwd) assert user == "18221124104" assert pwd== 111111 "C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/test/test03.py ============================= test session starts ============================= platform win32 -- Python 3.5.2, pytest-5.1.2, py-1.8.0, pluggy-0.12.0 rootdir: C:\Users\wangli\PycharmProjects\Test\test collected 2 items test03.py 18221124104 111111 .18200000000 111111 x ======================== 1 passed, 1 xfailed in 0.14s ========================= Process finished with exit code 0 #若要获得多个参数化参数的所有组合,可以堆叠参数化装饰器 @pytest.mark.parametrize("x", [0, 1]) @pytest.mark.parametrize("y", [2, 3]) def test_foo(x, y): print("测试数据组合:x->%s, y->%s" % (x, y)) if __name__=="__main__": pytest.main(["-s","test03.py"]) "C:\Program Files\Python35\python.exe" C:/Users/wangli/PycharmProjects/Test/test/test03.py ============================= test session starts ============================= platform win32 -- Python 3.5.2, pytest-5.1.2, py-1.8.0, pluggy-0.12.0 rootdir: C:\Users\wangli\PycharmProjects\Test\test collected 4 items test03.py 测试数据组合:x->0, y->2 .测试数据组合:x->1, y->2 .测试数据组合:x->0, y->3 .测试数据组合:x->1, y->3 . ============================== 4 passed in 0.03s ============================== Process finished with exit code 0
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