looking for Groovylib feedback

[lostiniceland]

I have been working on Groovy support since I would like to use Mill for projects where tests are written in Spock/Groovy.
A early draft can be found here.

It is basically a modified version of the Kotlin support.

Whats currently working:

• Groovy compilation
• Maven project layout with an additional convenience option to configure Groovy for tests only
• JUnit5 test execution

Not yet working:

• Spock execution (because tests cannot be located even though the files get successfully compiled) -> see Unittest
• Testmodule.SpockTest will provide the proper test-setup once I figured it out

What I would like to add (after Spock works)

• Test different major Groovy version (5 was recently released)
• Provide BOM resolution (not sure if this can be done or if it is a good idea)
• Provide additional compiler options if needed

My biggest problem is that I cannot figure out why Spock tests are not executed. Spock ships its own JUnit5 TestEngine which is loaded via ServiceLoader in the same way Kotest provides an additional runner which ships this Testengine with the same mechanism.
Since the kotlinlib doesn't do anything special about Kotest, I wonder why this is not working. My guess is there is something going on in the SBT-JUnit thing within Testmodule.

If anyone would like to provide feedback or help out with the Spock integration I would appreciate it.

[lefou]

I welcome you to open a draft PR against the Mill repo (to profit from GitHub PR UI).

[lostiniceland]

Done. #5747