pytest-asyncio：协程异步测试案例

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简介：pytest-asyncio是一个pytest插件。它便于测试使用异步库的代码。具体来说，pytest-asyncio提供了对作为测试函数的协同程序的支持。这允许用户在测试中等待代码。

历史攻略：

asyncio并发访问websocket

Python：协程 - 快速创建三步骤

Python：获取协程返回值的四种方式

Python：多进程，多线程，协程基础案例

Python：aiomultiprocess实现协程与多进程的强强联合

安装：

pip install pytest-asyncio

使用案例：aysncio_demo.py

# -*- coding: utf-8 -*-
# time: 2024/4/5 12:06
# file: asyncio_demo.py
# 公众号: 玩转测试开发import asyncio
import datetimeasync def do_somethings(user):# 1、定义协程函数print(f"{user} is do_somethings. the time is {datetime.datetime.now()}")await asyncio.sleep(0.1)return user + " is finish do_somethings."async def do_another(user):print(f"{user} is do_another. the time is {datetime.datetime.now()}")await asyncio.sleep(0.2)return user + " is finish do_another."async def do_others(user):print(f"{user} is do_others. the time is {datetime.datetime.now()}")return user + " is finish do_others."if __name__ == '__main__':# 3、加入事件循环。tasks = []for i in range(3):tasks.append(do_somethings("tom"))tasks.append(do_another("ken"))tasks.append(do_others("lily"))asyncio.run(asyncio.wait(tasks))

test_demo.py

# -*- coding: utf-8 -*-
# time: 2024/3/31 10:34
# file: test_demo.py
# 公众号: 玩转测试开发
import sys
import pytest
from lib.asyncio_demo import do_somethings, do_another, do_others
from logger import log@pytest.mark.asyncio
async def test_do_somethings():user = "tom"res = await do_somethings(user)log.info(f"{res}")pytest.assume(user + " is finish do_somethings." in res)@pytest.mark.asyncio
async def test_do_another():user = "ken"res = await do_another(user)log.info(f"{res}")pytest.assume(user + " is finish do_another." in res)@pytest.mark.asyncio
async def test_do_others():user = "lily"res = await do_others(user)log.info(f"{res}")# 此次故意放一个错误试试。pytest.assume(user + " is finish do_others." not in res)

运行结果：

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