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kotlinlang

Is there any way to have `commonTest` in one module depend on `commonTest` in another?

No, the official solution for this outside KMP is text fixtures but they do not work on KMP so you need to create a normal module, write the code in common main and share it on both modules

yeah, trying something a bit like that but that common module needs then in turn to depend on say feature modules where the interfaces that the fakes implements are defined

You can have a module `:tests` with tests written in the main sources. Then the main sources of `:tests` can depend on `:feature` and the test sources of `:feature` can depend on `:tests`.