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How can you register additional variants to the `kotlin` KotlinSoftwareComponent when using the multiplatform plugin? I want to publish my jvmTestSuite code. The java-test-fixture plugin works locally with the mpp plugin, but it does not publish the test-fixture variant for external consumption.

I have no idea, but just from looking at what components are registered, maybe it is
```components.named&lt;AdhocComponentWithVariants&gt;("adhocKotlin") {
    //...
}```
:man-shrugging:

Ohhhh, I only used the kotlin component. That's exactly what I was looking for :tada: thank you

Maybe the KMP DSL also has some way to do it, no idea.
As I said, just wild guessing here. :slightly_smiling_face:

That's also not the `KotlinSoftwareComponent` component called `kotlin`,
but it seems that component somehow consideres that `adhocKotlin` component.
So maybe it is the intended way, no idea.

Well, I will just test it, but the module.json file looks good

It works:
```components.named<AdhocComponentWithVariants>("adhocKotlin") {
    addVariantsFromConfiguration(
        configurations.testFixturesApiElements.get(),
        JavaConfigurationVariantMapping("compile", true, configurations.testFixturesCompileClasspath.get())
    )
    addVariantsFromConfiguration(
        configurations.testFixturesRuntimeElements.get(),
        JavaConfigurationVariantMapping("runtime", true, configurations.testFixturesRuntimeClasspath.get())
    )
}```

Great, except for using an internal class of course :slightly_smiling_face:

Yeah, but when looking at the code, it is needed for the dependency mapping that also uses an internal class

I didn't say you don't need it, I just said that makes it "not so great" :smile:
Maybe worth a feature request to add some API :man-shrugging:

fyi: <https://kotlinlang.org/docs/whatsnew2120.html#support-for-adding-custom-gradle-publication-variants|kotlinlang.org/docs/whatsnew2120.html#…>