从命令行生成JUnit报告

问题描述

我有一个云系统的测试设置，使用python用于过程级控制和junit用于内部状态检查。基本上，我把几个虚拟机带到服务器作为云，然后一个junit VM是云的成员，但驱动测试和检查内部状态。我们现有的云管理工具由python驱动，我想保持这个。

I have a test setup for a cloud system that uses a mixture of python for process level control and junit for internal state inspection. Essentially, I bring up several VMs to server as the cloud and then a junit VM which is a member of the cloud but drives tests and checks internal state. Our existing cloud management stuff is driven by python and I would like to maintain this.

我有一个工作设置，将运行JUnit命令行通过

I have a working setup that will run the JUnit command line via

java -ea -cp <classpath> org.junit.runner.JUnitCore <tests>

，但这不会生成报告文件。我知道蚂蚁能够产生一个xml报告，但我不想在这个过程中涉及蚂蚁（我已经有足够的移动部分）。

but this does not produce an report file. I know that ant is capable of producing an xml report, but I do not want to involve ant in this process (I have enough moving parts already).

有没有办法从命令行启动junit，从而生成报告？

Is there a way to launch junit from the command line such that it produces a report?

我将有junit测试产生xml报告，python测试产生xml报告，然后将它们合并在一起供我们的CI系统使用。

Ideally, I would have the junit tests produce xml reports, the python tests produce xml reports, and then merge them together for consumption by our CI system.

更新： / strong>命令行执行必须支持Windows，Linux和Mac。

Update: The command line execution must support Windows, Linux, and Mac. We are not allowed to ship an external ant, although packaging an internal ant might be an option.

推荐答案

不允许发送外部蚂蚁。 p> JUnit库没有任何XML输出选项。要实现这样的功能，您需要编写自己的，它监听输出，并在你的情况下写入XML文件。

The JUnit library does not have any XML output options. To achieve such a thing, you'll need to write your own RunListener, which listens for the output and will in your case write the XML file.

但是，为了获得正确格式的XML文件，由CI系统读取，我认为只要使用ant就更容易了，可以通过命令行使用build.xml（），或使用java api：。

However, to get the XML file in the correct format so that it can be read by CI system, I think it would be far easier to just use ant, either via the command line using a build.xml (JUnitReport), or using the java api: How can i use Apache ANT Programmatically.

编辑：最初，我们有四个选项：

Initially, we had four options:

1. 使用ant从命令行


2. 使用ant以编程方式（使用Java API）


3. 使用XMLJUnitResultFormatter直接与JUnitCore
4. 
   
5. 创建自定义的RunListener，生成正确的XML输出。

，我们不能从命令行使用ant，这消除了1。

Given the restrictions added by the OP, we can't use ant from the command line, which eliminates 1.

仔细查看Ant JUnit任务后，似乎不可能使用它JUnitCore（添加一个TestListener），因为ant直接使用测试类的名称，所以你不能做一个bridge类。从

After looking more closely at the Ant JUnit task, it seems to be impossible to use this with JUnitCore (adding a TestListener), because ant uses the name of the test class directly, so you can't do a bridge class. From XMLJUnitResultFormatter.java

private void formatError(String type, Test test, Throwable t) {
    ...
    nested.setAttribute(ATTR_TYPE, t.getClass().getName());

    String strace = JUnitTestRunner.getFilteredTrace(t);
    Text trace = doc.createTextNode(strace);
    nested.appendChild(trace);
}

这消除了3。

通过Java API以编程方式调用Ant。我找不到任何最近的文档。这似乎很难。

Invoke Ant programmatically, via the Java API. I can't find any recent documentation on this. This seems to be hard.

所以，最后，我会做4，一个自定义RunListener，使用XMLJUnitResultFormatter的代码作为基础。然后，我将它发布在github.com，所以这个问题可以正确回答：）

So, finally, I would do 4, a custom RunListener, using the code from XMLJUnitResultFormatter as a base. And then, I'd publish it on github.com, so this question could be answered properly :-)

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