I'm trying to setup my Android project to use Junit 5, so in groovy I would usually do ```unitTests....

# gradle

[Ahmed Ibrahim]

I'm trying to setup my Android project to use Junit 5, so in groovy I would usually do

unitTests.all {
        useJUnitPlatform()
}

In Kotlin script though I'm doing

testOptions {
        unitTests.all(closureOf<Test> {
            useJUnitPlatform()
        } as Closure<Test>)
    }

However I'm a bit annoyed from the as clause as without it I get a compile error, so my question is there a way I could do that without explicitly casting to Closure<Test>?

[mbonnin]

Maybe something like?

testOptions {
        unitTests.all(KotlinClosure1<Test, Test>({this}, this, this))
    }

But I'm not sure it's much better actually. I would just stick to the cast and file a bug the AGP team for them to provide better Kotlin api

[Ahmed Ibrahim]

Yeah, this is not readable either, thanks anyway! I'll try to file a bug for them.

[Matej Drobnič]

I don't think that will work for the Android tests

[Matej Drobnič]

you have to use 3rd party plugin: https://github.com/mannodermaus/android-junit5

[tapchicoma]

@Ahmed Ibrahim when you will file an issue - could you post a link to it in this thread? I will star it 🙂

[Ahmed Ibrahim]

@tapchicoma Sorry I was offline in the past 6 days so couldn't create the issue.
However, here you are I just created a fresh one, let me know if you need to add something to it.
https://issuetracker.google.com/issues/150054571

[Ahmed Ibrahim]

@Matej Drobnič Yeah I know, however I'm not intending to use JUnit5 with Android Tests, only plan to use it with unit JVM tests.

[Matej Drobnič]

@ahi AFAIK you still need this plugin even for normal tests if Android Gradle plugin is present.

[Matej Drobnič]

or did they fix that recently?

[Ahmed Ibrahim]

I had no idea about that, but for me I've written both sample JUnit 5 unit tests and Android instrumentation tests, and both are running as expected with no issues.

[Matej Drobnič]

thanks, I guess I have to check it out again