java.lang.Exception: No tests found matching Method using Intellij IDEA

Question

I am experiencing a strange behavior of Intellij IDEA 2016.3. Having a class with method foo and a JUnit test for the method when I get java.lang.Exception: No tests found matching Method foo when running the test. After I do mvn test it succeeds and then running the unit test right after executing mvn command it suddenly runs green. Seems like IDEA does not compile automatically. How can I fix this?

P.S. No settings were altered after upgrading to v. 2016.3

Answer 1

If you're using a theory testing framework like Junit's or Robolectric's, make sure to run the class containing the test you want, instead the test itself. Since these frameworks use the test methods as instance methods instead of static methods, any testing framework looking for a normal public static test won't find anything.

Answer 2

The same issue i got with Gradle (4.5+) + new Build Cache feature

Sometimes it's unable to find new test methods and throws exception (like you mentioned in topic)

Solution: clean .gradle, build and out directories and try again ;)