I just had a couple of problems with IntelliJ and ScalaTest. Under some circumstances, some of the tests didn’t run anymore. I had the problems some times before, but didn’t find anything helpful in the net, yet. I was really going crazy about this, ’cause nothing seems to help. Well I managed to get around it. Sadly without knowing exactly what the problem was. I just creating a completely new project in IntelliJ (project file format .idea (standard) and ‘Java’ not ‘Plugin‘..) copied the sources over to the new one, re-init of maven, and now it seems to work.
I played around with the project structure before the re-init. Might have caused some problems. Hoping everything stays fine now.