Python自动化——pytest常用插件详解_pytest.delay

前言

Pytest是Python的一种单元测试框架，与unittest相比，使用起来更简洁、效率更高，也是目前大部分使用python编写测试用例的小伙伴们的第一选择了。

除了框架本身提供的功能外，Pytest还支持上百种第三方插件，良好的扩展性可以更好的满足大家在用例设计时的不同需求。本文将为大家详细介绍下面6项常用的插件。废话就不多说了我们直接开始吧。

1、失败重跑 pytest-rerunfailures

　　安装：pip install pytest-rerunfailures

　　使用：pytest test_class.py --reruns 5 --reruns-delay 1 -vs （失败后重新运行5次，每次间隔1秒）

　　　　　@pytest.mark.flaky(reruns = 5 ,reruns-delay = 1 )　指定某个用例

#!/usr/bin/python
# -*- coding: UTF-8 -*-
"""
@author:chenshifeng
@file:test_calc2.py
@time:2020/09/16
"""
 
import pytest
 
 
@pytest.mark.parametrize('a,b,result', [
    (1, 1, 3),
    (2, 2, 4),
    (100, 100, 200),
    (0.1, 0.1, 0.2),
    (-1, -1, -2)
], ids=['int', 'int', 'bignum', 'float', 'fushu'])  # 参数化
def test_add(a, b, result):
    # cal = Calculator()
    assert result == a + b

命令行执行：

pytest test_calc2.py --reruns 5 --reruns-delay 1 -vs

结果如下：

============================================================================= test session starts =============================================================================
platform darwin -- Python 3.6.4, pytest-6.0.2, py-1.9.0, pluggy-0.13.1 -- /Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6
cachedir: .pytest_cache
rootdir: /Users/chenshifeng/MyCode/PythonCode/SFDSZL/test_pytest, configfile: pytest.ini
plugins: rerunfailures-9.1, dependency-0.5.1, ordering-0.6, assume-2.3.2
collected 5 items                                                                                                                                                             
 
test_calc2.py::test_add[int0] RERUN
test_calc2.py::test_add[int0] RERUN
test_calc2.py::test_add[int0] RERUN
test_calc2.py::test_add[int0] RERUN
test_calc2.py::test_add[int0] RERUN
test_calc2.py::test_add[int0] FAILED
test_calc2.py::test_add[int1] PASSED
test_calc2.py::test_add[bignum] PASSED
test_calc2.py::test_add[float] PASSED
test_calc2.py::test_add[fushu] PASSED
 
================================================================================== FAILURES ===================================================================================
_______________________________________________________________________________ test_add[int0] ________________________________________________________________________________
 
a = 1, b = 1, result = 3
 
    @pytest.mark.parametrize('a,b,result', [
        (1, 1, 3),
        (2, 2, 4),
        (100, 100, 200),
        (0.1, 0.1, 0.2),