Tests run without any problem in sbt, but when you need them in IntelliJ, they fail.
A needed class was not found. This could be due to an error in your runpath.
Missing class: scoverage/Invoker$
java.lang.NoClassDefFoundError: scoverage/Invoker$
I have seen many suggesting during the years how to fix it, but nothing really helped. :)
Just perform a rebuild (Build -> Rebuild Project).
Intellij is probably storing some temporary/cached files and rebuilding clears them.
Finally discovered a solution, which worked for me:
Temporarely disable scoverage plugin for sbt project(s) in questions
lazy val pipeline: Project = project
...
.disablePlugins(ScoverageSbtPlugin) // <-- temp
Bonus: tests are running faster as well.