Hey folks, I'm struggeling a bit with kotlin mutliplatform and

commonTest

. In my

build.gradle

i have the following config:

kotlin {
  ... 
  sourceSets {
     ...
       commonTest {
            dependencies {
                implementation 'org.jetbrains.kotlin:kotlin-test-common'
                implementation 'org.jetbrains.kotlin:kotlin-test-annotations-common'
            }
        }
   }
}

However, if I run a test in

src/commonTest/kotlin/my/package/FooTest.kt

which looks like this

import kotlin.test.Test
import kotlin.test.assertEquals

class FooTest {
    @Test
    fun filterState(){
        assertEquals(1, 2)
    }
}

I get

Unresolved reference: Test

e: ... /src/commonTest/kotlin/my/package/FooTest.kt: (3, 20): Unresolved reference: Test

e: ... /src/commonTest/kotlin/my/package/FooTest.kt: (4, 20): Unresolved reference: assertEquals

Any idea what I have misconfigured?

I saw this once when my top level source folder for the common module was called

java

instead of

kotlin

thanks, I double checked it, it's called

kotlin

you need the test dependencies for your test targets as well

What do you mean exactly? I only have

commonMain

, I just have a bunch of pure kotlin code in this library project that has no

expected / actual

platform specific implementation and therefore also no

jvmTest

etc.

you have to have a target

I have

kotlin {
    jvm()
    js()
    macosX64()
    iosArm32()
    iosArm64()
    iosX64()
    ... 
    sourceSets {
     ...
       commonTest {
            dependencies {
                implementation 'org.jetbrains.kotlin:kotlin-test-common'
                implementation 'org.jetbrains.kotlin:kotlin-test-annotations-common'
            }
        }
   }

right, so you have 6 targets. which one was used to run the tests?

Ah, now I see what you are pointing out (thanks a lot for taking the time and effort!) I just run

gradlew check

and it failed in

compileTestKotlinJvm

I guess I miss the dependencies in

implementation 'org.jetbrains.kotlin:kotlin-test'
                implementation 'org.jetbrains.kotlin:kotlin-test-junit'

you will need the right dependencies for every target on which you want to run the tests

yea you are right (and I found that totally unintuitive)

just like in your own project, common sources are not the full implementation. and common dependencies are also not the full implementation.

Thanks a lot for your help!

the specific library should have it in their own docs. in this case, the new project template would also include it if it also generated the target.