pytest简易教程(18):parametrize中indirect用法(间接参数)
pytest简易教程汇总,详见:https://www.cnblogs.com/uncleyong/p/17982846
简介
1、indirect默认是False
2、如果设置成True,表示把被parametrize修饰器修饰的方法形参当函数执行(parametrize中参数名和这个形参同名),此时必须有被@pytest.fixture()修饰的和形参名同名的函数(可以对参数做一些加工处理),否则报错:fixture 'xxx' not found,xxx表示形参名;简单说,为True时,形参被当成是一个fixture函数
3、fixture修饰器中没有params参数
4、可以通过indirect指定间接参数
验证:indirect默认值是False
#!/usr/bin/env python # -*- coding: utf-8 -*- # @Author : 韧 # @wx :ren168632201 # @Blog :https://www.cnblogs.com/uncleyong/ import pytest data = ["qzcsbj","ren","jack"] @pytest.mark.parametrize("register", data) def test_case(register): print(f"register={register}")
结果:
indirect设置为False
#!/usr/bin/env python # -*- coding: utf-8 -*- # @Author : 韧 # @wx :ren168632201 # @Blog :https://www.cnblogs.com/uncleyong/ import pytest data = ["qzcsbj","ren","jack"] @pytest.mark.parametrize("register", data, indirect=False) def test_case(register): print(f"register={register}")
结果:和不指定indirect时结果一样,说明默认是False
反推:改为True,需要添加parametrize参数名同名fixture
#!/usr/bin/env python # -*- coding: utf-8 -*- # @Author : 韧 # @wx :ren168632201 # @Blog :https://www.cnblogs.com/uncleyong/ import pytest data = ["qzcsbj","ren","jack"] @pytest.mark.parametrize("register", data, indirect=True) def test_case(register): print(f"register={register}")
结果:报错,没fixture函数
添加固件,注意:此时fixture修饰器中没有params参数
此时data会传到register方法
#!/usr/bin/env python # -*- coding: utf-8 -*- # @Author : 韧 # @wx :ren168632201 # @Blog :https://www.cnblogs.com/uncleyong/ import pytest @pytest.fixture() def register(request): print("当前返回参数是:",request.param) return request.param data = ["qzcsbj","ren","jack"] @pytest.mark.parametrize("register", data, indirect=True) def test_case(register): print(f"register={register}")
结果:
传多个参数:一个fixture,数据用字典列表
#!/usr/bin/env python # -*- coding: utf-8 -*- # @Author : 韧 # @wx :ren168632201 # @Blog :https://www.cnblogs.com/uncleyong/ import pytest @pytest.fixture() def login(request): param = request.param print(f"当前返回参数是:uname={param['uname']},pwd={param['pwd']}") return param data = [ {"uname": "ren", "pwd": "123"}, {"uname": "qzcsbj", "pwd": "456"}, ] @pytest.mark.parametrize("login", data, indirect=True) def test_case(login): print(f"uname:{login['uname']},pwd:{login['pwd']}")
结果:
传多个参数:多个fixture
#!/usr/bin/env python # -*- coding: utf-8 -*- # @Author : 韧 # @wx :ren168632201 # @Blog :https://www.cnblogs.com/uncleyong/ import pytest @pytest.fixture() def uname(request): uname = request.param print(f"当前返回参数是:uname={uname}") return uname @pytest.fixture() def pwd(request): pwd = request.param print(f"当前返回参数是:pwd={pwd}") return pwd data = [ ("ren", "123"), ("qzcsbj", "456") ] @pytest.mark.parametrize("uname,pwd", data, indirect=True) def test_case(uname, pwd): print(f"uname:{uname},pwd:{pwd}")
结果:
indirect指定间接参数
不指定间接参数
#!/usr/bin/env python # -*- coding: utf-8 -*- # @Author : 韧 # @wx :ren168632201 # @Blog :https://www.cnblogs.com/uncleyong/ import pytest # 有params参数 @pytest.fixture() def fun(request): print("返回的数据是:",request.param) return request.param + "_666" # 无params参数 @pytest.fixture def fun2(request): print("返回的数据是:", request.param) return request.param + "_6" @pytest.mark.parametrize("fun,fun2", [("qzcsbj", "ren"), ("jack","tom")], indirect=True) def test_case(fun,fun2): print(f"fun={fun}, fun2={fun2}")
结果:
指定间接参数
#!/usr/bin/env python # -*- coding: utf-8 -*- # @Author : 韧 # @wx :ren168632201 # @Blog :https://www.cnblogs.com/uncleyong/ import pytest # 有params参数 @pytest.fixture() def fun(request): print("返回的数据是:",request.param) return request.param + "_666" # 无params参数 @pytest.fixture def fun2(request): print("返回的数据是:", request.param) return request.param + "_6" @pytest.mark.parametrize("fun,fun2", [("qzcsbj", "ren"), ("jack","tom")], indirect=["fun"]) def test_case(fun,fun2): print(f"fun={fun}, fun2={fun2}")
结果:
思考题:
#!/usr/bin/env python # -*- coding: utf-8 -*- # @Author : 韧 # @wx :ren168632201 # @Blog :https://www.cnblogs.com/uncleyong/ import pytest # 有params参数 @pytest.fixture(params=[1, 2]) def fun(request): print("返回的数据是:",request.param) return request.param @pytest.mark.usefixtures('fun') def test_1(fun): print("fun=", fun) # 无params参数 @pytest.fixture def fun2(request): print("返回的数据是:", request.param) return request.param + "_qzcsbj" @pytest.mark.parametrize("fun2", ["a", "b"], indirect=True) def test_2(fun2): print("fun2=", fun2)
思考:为什么是如下结果?
__EOF__
![微信:ren168632201](https://files-cdn.cnblogs.com/files/uncleyong/wx.bmp)
本文作者:持之以恒(韧)
关于博主:擅长性能、全链路、自动化、企业级自动化持续集成(DevTestOps)、测开等
面试必备:项目实战(性能、自动化)、简历笔试,https://www.cnblogs.com/uncleyong/p/15777706.html
测试提升:从测试小白到高级测试修炼之路,https://www.cnblogs.com/uncleyong/p/10530261.html
欢迎分享:如果您觉得文章对您有帮助,欢迎转载、分享,也可以点击文章右下角【推荐】一下!
关于博主:擅长性能、全链路、自动化、企业级自动化持续集成(DevTestOps)、测开等
面试必备:项目实战(性能、自动化)、简历笔试,https://www.cnblogs.com/uncleyong/p/15777706.html
测试提升:从测试小白到高级测试修炼之路,https://www.cnblogs.com/uncleyong/p/10530261.html
欢迎分享:如果您觉得文章对您有帮助,欢迎转载、分享,也可以点击文章右下角【推荐】一下!