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<>selenium+pytest——失败用例重试
一、目的
在我们使用selenium+pytest做UI自动化的时候偶尔会遇到因为特殊情况
比如浏览器加载失败、网络波动等等导致用例运行失败(可能单独运行没
问题),对于这些场景产生的用例结果不是我们想要的,那这么可以避免
这种情况,如果对代码进行这些异常情况的处理也是一个实现方式但是过
于浪费时间和精力,此时我们就可以采用pytest框架本身支持的一种方
式,对于错误的用例进行重试,达到我们的目的。
二、实现方式
需要使用第三方库:pytest-rerunfailures
安装:pip install pytest-rerunfailures
使用:
方法一: 在命令行进行执行: pytest --reruns 3 --reruns-delay 2 或 pytest -vs --reruns=3
--reruns-delay=2 reruns 代表循环次数,reruns-delay代表循环之间的间隔时间 优势:可以针对所执行的所有脚本用例 方法二:
在用例上使用flaky装饰器 @pytest.mark.flaky(reruns=5,reruns_delay=5) reruns
代表循环次数,reruns_delay代表循环之间的间隔时间 此装饰器放在用例上则是针对单个用例,如果是放在类上则是针对整个类(遇到错误的用例才会重试)
三、拓展
1、装饰器的方法和命令行的方法不能一起使用,不然的话会报错
2、不可以和fixture装饰器一起使用: @pytest.fixture()
3、该插件与pytest-xdist的 --looponfail 标志不兼容
4、该插件与核心–pdb标志不兼容