java - running a subset of JUnit @Test methods

Question

We're using JUnit 4 to test: we have classes that don't are a subclass of TestCase, and they have public methods annotated with @Test. We have one file with many @Test methods. It would be nice to be able to run a subset of them via Ant from the command line, in the style of this recipe for JUnit 3:

ant runtest -Dtest=MyTest -Dtests=testFoo,testBar

http://today.java.net/pub/a/today/2003/09/12/individual-test-cases.html

I've been trying to think of ways to achieve this with Java reflection, etc. Since there doesn't seem to be any way to "hide" @Test methods or remove their annotations at runtime, the only option seems to be using the ClassLoader's defineClass method, which seems quite difficult.

P.S. The Right Thing in this situation would be to split up the file, but are there alternatives?

Thanks for your time.

Answer 1

Since JUnit 4.12 we have @Category annotations to solve just that problem.