Running tests on Intellij: Class not found

I'm evaluating IntelliJ (13.0.2 133.696) and cannot get jUnit tests to run from within the IDE.

My project is a multi module gradle project and uses scala.

Test class is located under src/test/scala/xxx/xxxxx/xxx/xxxx/xxxxx and everytime i try to run from IDE i get the same error:

Class not found: "xxx.xxxxx.xxx.xxxx.xxxxx.AccountRepositoryTest"

Test class is nothing fancy, simple jUnit test:

@RunWith(classOf[SpringJUnit4ClassRunner])
@ContextConfiguration(classes = Array(classOf[DataConfig], classOf[SettingsConfig]))
class AccountRepositoryTest extends AssertionsForJUnit {

I've found a related question Cannot run Junit tests from IDEA 13.0 IDE for imported gradle projects , but the provided fix (upgrade to 13.0.2) does not work.

I've even tried upgrading to the latest EAP, still the same issue.

Solution 1:

I looked through some of these answers, fussed with Project Settings, tried a few things, etc. and nothing worked. (Full disclosure: I'm not trying to juggle Gradle here; I'm just using Maven, but I don't see what this has to do with Gradle.)

I'm using IDEA 14.

What I found to work, because it just simply seemed IntelliJ had lost its way, was this:

$ rm -rf .idea project-name.iml

Then relaunched IntelliJ and did File -> Open -> navigate to the root of my project, etc.--in short, just recreated my project.

IntelliJ got over it. I may have messed something up originally in this project as I had done plenty of refactoring both package- and class names and I had even changed the project name. (It was probably my fault it happened.)

Solution 2:

I had this same problem, and in my case the problem was due to the "Project compiler output" path being left blank in Project Settings.

To fix it I created a classes directory in my project root, and set Project compiler output to the absolute path (use the … button to browse).

Solution 3:

Go to Project Settings -> Project.

Fill in Project compiler output: ex. D:\repo\Project\out

Go to Module -> Paths

Make sure that:

output path is like D:\repo\Project\out\production

test output path like D:\repo\Project\out\test

Should work!

Solution 4:

Simply 'Build > Rebuild Project' worked for me.

Solution 5:

Check Run/Debug configuration for that test "Use classpath and SDK of module:" should point into your module.

In meantime you module must have a Scala facet and that class must be inside the "Test source Folders".