JUnit: how to avoid “no runnable methods” in test utils classes

Question

I have switched to JUnit4.4 from JUnit3.8. I run my tests using ant, all my tests run successfully but test utility classes fail with \"No runnable methods\" error. The patt

Answer 1

In your test class if wrote import org.junit.jupiter.api.Test; delete it and write import org.junit.Test; In this case it worked me as well.

Answer 2

1. If this is your base test class for example AbstractTest and all your tests extends this then define this class as abstract
2. If it is Util class then better remove *Test from the class rename it is MyTestUtil or Utils etc.

Answer 3

Ant now comes with the skipNonTests attribute which was designed to do exactly what you seem to be looking for. No need to change your base classes to abstract or add annotations to them.

Answer 4

What about adding an empty test method to these classes?

public void avoidAnnoyingErrorMessageWhenRunningTestsInAnt() {
    assertTrue(true); // do nothing;
}

Answer 5

My specific case has the following scenario. Our tests

public class VenueResourceContainerTest extends BaseTixContainerTest

all extend

BaseTixContainerTest

and JUnit was trying to run BaseTixContainerTest. Poor BaseTixContainerTest was just trying to setup the container, setup the client, order some pizza and relax... man.

As mentioned previously, you can annotate the class with

@Ignore

But that caused JUnit to report that test as skipped (as opposed to completely ignored).

Tests run: 4, Failures: 0, Errors: 0, Skipped: 1

That kind of irritated me.

So I made BaseTixContainerTest abstract, and now JUnit truly ignores it.

Tests run: 3, Failures: 0, Errors: 0, Skipped: 0

Answer 6

Assuming you're in control of the pattern used to find test classes, I'd suggest changing it to match *Test rather than *Test*. That way TestHelper won't get matched, but FooTest will.