需要安装pytest和pytest-html(生成html测试报告)
pip install pytest 和 pip install pytest-html

setup和teardown的区别
生成测试报告
pip install pytest-html
pytest.main(["--html=./report.html","模块.py"])
生成的测试报告
读取xml文件
from xml.dom import minidom
class Readxml():
def read_xml(self,filename,onename,twoname):
root =minidom.parse(filename)
firstnode =root.getElementsByTagName(onename)[0]
secondnode=firstnode.getElementsByTagName(twoname)[0].firstChild.data
return secondnode