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home > news > developers > how to determine the junit 4 current test name

How to determine the JUnit 4 current test name

In my unit tests I often want to know the name of the test that is executing. For example, I often want to have the golden file (expected test output) computed automatically from the testname. As another example in my JavaFX testing, I often generate screenshots inside failing tests and it's useful to name these screenshots by the failing tests. In JUnit 3 this was simple, since your testcases would extend a builtin JUnit class which had a method you could call to return the current test. However, with JUnit 4 that's no longer possible. I've googled and found the "correct" way to do it - using a special @RunWith to run the test class - but I find that solution unsatisfying. My utility methods which are invoked to read golden files and screenshot etc are in one place and I now have to decorate all my tests. Besides, I already have a @RunWith annotation on my tests because I want to run them on the event dispatch thread so I have a special test runner for that. So, I've found a better way to do it. Better for me I mean - this may have problems and limitations I'm not aware of, but for all of my tests this worked wonderfully, and doesn't have the @RunWith requirements (though note that I don't do multithreading in my tests, other than invoke them on the event dispatch thread, so if you try to call this from a thread that didn't invoke the test it probably won't work): public static String getTestName() { // Try to f...


Date: December, 11 2009
Url: http://blogs.sun.com/tor/entry/how_to_determine_the_junit


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