Is it possible to indicate to IntelliJ, via Gradle, that a source directory is for tests? For exampl...

# intellij

[Javier]

Is it possible to indicate to IntelliJ, via Gradle, that a source directory is for tests? For example, test/kotlin
is green, meanwhile functionalTest/kotlin is blue.

[Starr]

how are you adding the functionalTest source set? idk if IJ detects whether it depends on test or whatever

you can use Mark As > Test Sources in the UI but that wouldn't persist

[Riccardo Lippolis]

I use the following Gradle config to mark an integrationTest directory (from the sourceset integrationTestSourceSet) as test sources, by using the idea plugin:

plugins {
    // ... other plugins

    idea
}

idea {
    module {
        testSources.from(integrationTestSourceSet.allSource.sourceDirectories)
    }
}

[Javier]

I am adding it so

sourceSets.register("functionalTest")

[Javier]

@Riccardo Lippolis without that plugin is not possible right? I am not using it yet as it is not compatible with project isolation

[Riccardo Lippolis]

I don't think so. It's an IntelliJ-specific setting, so it has to be configured in the IntelliJ configuration. If you want to do that from the Gradle build file, the idea plugin is suitable for that. So if you want to keep the Gradle file independent from IntelliJ-specific stuff, that's not an option 😅

[Emil Kantis]

if you use the jvm-test-suite plugin you can create another test suite and it should be picked up correctly IIRC..

[Javier]

that plugin is not compatible with KMP, right?

[Emil Kantis]

I suppose not, considering it's naming, but can't say for sure 😁

[Javier]

@Riccardo Lippolis as they are doing that automatically for test, I would expect something similar for other regex like fooTest or testFoo

[Riccardo Lippolis]

maybe this works for you: https://www.jetbrains.com/help/idea/testing.html#gradle-use-custom-test-root

it looks like it's an array, so maybe you can supply multiple source directories there (I haven't tried it)

[Javier]

yeah I could use this one, but I would have to do that on each project, I would keep it as blue until idea plugin is fixed

[Riccardo Lippolis]

but if you define it in the Gradle build file, you would still have to do that on each project, right? I mean, regardless of whether you're using the idea plugin

[Javier]

I don't follow you 🤔, they are already picked by intellij via gradle, the only problem is they are not colored with green in the editor, but I can run them with right click run tests for example

[Javier]

so intellij knows it is a source set and it contains tests and it is able to run them, but it is not marked with the green color, but you can run all test in main too

[Riccardo Lippolis]

so, your original question was that you want to make the functionalTest/kotlin directory shown as a test sources dir in IntelliJ (make it green). So I suggested the idea plugin. So then you asked if it was possible without the plugin, so I sent you the link to the IDEA documentation describing a way that would not involve the plugin, something like this:

sourceSets {
    test {
        kotlin {
            srcDirs("src/test/kotlin", "src/functionalTest/kotlin")
        }
    }
}

you then said "yeah I could use this one, but I would have to do that on each project", which is the point where I lost you (and you lost me as well, probably) 😛