SBT: specify which app to test:run

Question

Is there a way to specify which app to run instead of having it ask me?

> test:run

Multiple main classes detected

[1] junk.Hi
[2] junk.Ho
[3] junk.Hey

Enter number:

I tried doing this, but it didn't help:

> set mainClass in (Compile, test) := Some("junk.Ho")

And this doesn't work (presumably) because the app to run is in the test sources:

> runMain junk.Ho
[info] Running junk.Ho
[error] (run-main) java.lang.ClassNotFoundException: junk.Ho

Answer 1

This should work:

>test:runMain junk.Ho