1. 创建test_project 目录

test_project/sub/test_sub.py

def test_baidu(test_url):

    print(f'sub ={test_url}')

test_project/conftest.py  设置钩子函数  只对当前目录 和子目录起作用

import pytest
#设置测试钩子函数
@pytest.fixture()
def test_url():
    return  "https://www.baidu.com"

test_project/test_demo.py

def test_baidu(test_url):
    print(test_url)

运行 

 pytest -s -v ./test_project

或 main 运行

import pytest

if __name__=='__main__':
    #pytest.main(['-s','./fixture'])
    #pytest.main(['-v', './fixture','--junit-xml=./report/log.xml'])
    #pytest.main(['-v', './fixture', '--pastebin=all'])
    pytest.main(['-v','-s' ,'./test_project', '--pastebin=all'])

plugins: anyio-3.5.0
collecting ... collected 2 items

test_project/test_demo.py::test_baidu https://www.baidu.com
PASSED
test_project/sub/test_sub.py::test_baidu sub =https://www.baidu.com
PASSED

============================== 2 passed in 0.05s ==============================
==================== Sending information to Paste Service =====================
pastebin session-log: https://bpa.st/show/H4UQ