Is there a way to share test code between modules? I want test code of module "A" to use test code from module "B". Tried

java-test-fixtures

plugin but it does not seem to work in MPP environment.

commonTest?

Yep

a shared library is what pops into my head

It works but then code is considered as production, e.g. there are warnings about underscores in test names etc. Also you can't run tests from a non-test source set. Not a big dial for me but still. Maybe there is way to share commonTest somehow.

I use the main sources of a shared module to do this in Multiplatform Settings.

sounds like you have an example? 🙂

I think just a regular module with the test code inside commonMain source set.

Oops sorry that wasn't a very useful comment, was it? I have this module

tests

(https://github.com/russhwolf/multiplatform-settings/tree/master/tests) which has shared test code including a base class with shared test definitions. It gets consumed by test sources of other modules, eg here https://github.com/russhwolf/multiplatform-settings/blob/master/multiplatform-settings/build.gradle.kts#L39

I'm looking for the same thing. I also can't have a shared, production module for this b/c my test fixture needs internal access for the module it will provide utilities for. This seems to be the exact use case for test-fixtures. But i'm having issues when trying to consume one using

testImplementation(testFixtures(project(':foo')))

I get the following error:

Could not find method testFixtures()