How to check if a Java class contains JUnit tests?

Question

I have to check if a certain Class<?> object contains JUnit tests (both JUnit3 and JUnit4).

What is the best way to do that?

This sounds like an [XY problem](http://meta.stackexchange.com/q/66377/133242). What bigger goal are you trying to accomplish? — Matt Ball, Mar 04 '13 at 16:13
@MattBall I have a list of `Class>` objects that I need to instrument, but I need to filter out the JUnit test cases. — aperez, Mar 04 '13 at 16:21
@NikolayKuznetsov I don't think that answers the JUnit3 part of my question. — aperez, Mar 04 '13 at 16:22
@NikolayKuznetsov your comment is helpful, but the part about duplication is invalid due to JUnit3. — Christophe Roussy, Mar 04 '13 at 16:43

score 2 · Accepted Answer · edited May 23 '17 at 11:57

2

Use Java reflection on the classes to find out.

For version 3 the class must extend TestCase.

For version 4 you can scan for annotations, see this: How to get annotations of a member variable?

Basically you have to do as if you were JUnit, maybe you can even reuse some of the existing JUnit code.

edited May 23 '17 at 11:57

Community

answered Mar 04 '13 at 16:15

Christophe Roussy

1 Answers1