1.安装pytest
命令行或者终端中输入 pip install pytest

2.安装allure-pytest
命令行或者终端中输入 pip install allure-pytest

3.安装allure
https://github.com/allure-framework/allure2/releases

class test_demo:
    def __init__(self):
        self.a=0
        self.b=0

    def add_test(self,a,b):
        self.a=a
        self.b=b
        return self.a+self.b

    def ride_test(self,a,b):
        self.a = a
        self.b = b
        return self.a*self.b

import pytest
import allure
from testdata import test_demo

mcc = test_demo()

class TestCase(object):
    @allure.step("测试加法函数")
    def test01(self):
        result = mcc.add_test(1, 3)
        assert result == 5

    @allure.step("测试乘法函数")
    def test02(self):
        result = mcc.ride_test(2, 3)
        assert result == 6

if __name__ == '__main__':
    pytest.main()

>pytest test_testpy.py --alluredir ./report/result #执行用例，并在当前./report/result目录下生成json文件

>allure serve report/result #启动服务，读取目录下的json文件，呈现可视化测试报告