Selenium可以使用JUnit截取测试失败的截图吗？ [英] Can Selenium take a screenshot on test failure with JUnit?

问题描述

当我的测试用例失败时，特别是在我们的构建服务器上，我想拍一张屏幕的图片/截图来帮助我调试以后发生的事情。我知道如何截取屏幕截图，但是我希望在浏览器关闭之前，如果测试失败，我可以在JUnit中调用我的 takeScreenshot（）方法。

When my test case fails, especially on our build server, I want to take a picture / screenshot of the screen to help me debug what happened later on. I know how to take a screenshot, but I was hoping for a way in JUnit to call my takeScreenshot() method if a test fails, before the browser is closed.

不，我不想编辑我们的bazillions测试来添加try / catch。我想也许，也许可能会被说成一个注释。我的所有测试都有一个共同的父类，但我想不出我能做些什么来解决这个问题。

No, I don't want to go edit our bazillions of tests to add a try/catch. I could maybe, just possibly be talked into an annotation, I suppose. All of my tests have a common parent class, but I can't think of anything I can do there to solve this.

想法？

推荐答案

一些快速搜索让我想到了这个：

A few quick searches led me to this:

http://blogs.steeplesoft.com/posts/2012/grabbing-screenshots-of -failed-selenium-tests.html

基本上，他建议创建一个包装的JUnit4 规则在他调用的try / catch块中的测试 Statement ：

Basically, he recommends creating a JUnit4 Rule that wraps the test Statement in a try/catch block in which he calls:

imageFileOutputStream.write(
    ((TakesScreenshot) driver).getScreenshotAs(OutputType.BYTES));

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