Hello! I’m working on a Kotlin Multiplatform project that contains a

moduleA

and

moduleB

. Each module

commonMain

has a DI class with an

expect

function to provide their Koin setup. I’m currently writing tests for each module, so each

commonTest

also has its own DI class for setup. For example,

moduleA

uses SQLDelight, which requires a “testing driver” for tests. The issue arises because

moduleB

depends on

moduleA

and includes a repository that interacts with `moduleA`’s database. Unfortunately, I can’t import (resolve) the DI class from `moduleA`’s

commonTest

in

moduleB

, even though I can access `moduleA`’s

commonMain

DI class. However, I can’t use the

commonMain

version because it doesn’t include the “testing driver.” I’ve tried adding

moduleA

as a dependency in `moduleB`’s

build.gradle

under the

commonTest

source set, but it still won’t resolve. moduleB’s commonTest test class:

@BeforeTest
    fun setUp() {
        startKoin {
            modules(       
                moduleADiModule() <<<< can resolve (from module A commonMain)
                moduleATestDiModule() <<<< cannot resolve (from module A commonTest)
            )
        }
    }

What am I missing? 🤔

In which source set are you adding the A test DI module?

The function

moduleADiModule()

belongs to

DI.kt

from

moduleA

commonMain. The function

moduleATestDiModule()

belongs to

DITest.kt

from

moduleA

commonTest.

moduleB

build.gradle:

commonMain.dependencies {
    implementation(projects.moduleA)
...
}
commonTest.dependencies {
    implementation(libs.test.kotlin)
    implementation(libs.test.kmp.koin)
    implementation(libs.test.kmp.turbine)
    implementation(libs.test.kotlinx.coroutines)
}

You cannot share commonTest source sets as I said before.

ok so I need a “proxy” module in between with that logic in its commonMain so that module A and B can use it as a dependency on their commonMain/Test is that correct?

Correct 👍

okok, thanks 🙂