How does one use the

internal

keyword inside the same module for say

integrationTests

(eg. as per the above definition it can be used across

main

and

unit

in the same module)?

Currently

internal

declarations from main source set are only visible inside test source set of the same project.

OK - so that sounds like a hard restriction. Any reason why this cannot be extended to any other source set (extending test) ?

There was a discussion about that recently and it seems that the visibility of internal could be extended to all source sets of a project.

This has to do with a generally user hidden concept called “friend” sources. Currently, only the

compileTest

classes are made friends of your

compileMain

code. There’s really no documentation on how to set friend sources yourself. The feature is very well hidden and not well documented.