Hi, we’re working on a multiplatform project and would like to share common test utilities between test sourceSets residing in different gradle modules. What is the best approach?

yeah, curious to know. my approach so far is to generate an artifact:

tasks {
  register<Jar>("jarTest") {
    dependsOn(testClasses)
    from(sourceSets["test"].output)
    archiveClassifier.set("testHelper")
  }

  jar {
    dependsOn(named<Jar>("jarTest"))
  }
}

val testHelper by configurations.creating

artifacts {
  add(testHelper.name, tasks.named<Jar>("jarTest").get())
}

wondering if there are better approaches/implementation

Gradle 6 introduced the feature of

sharing test fixtures between projects

(https://gradle.org/whats-new/gradle-6/#sharing-test-fixtures-between-projects)

interesting, did not know that. I am currently having problem with the fixtures being written in kotlin

*Task :domain:compileTestFixturesKotlin* FAILED DomainFactories.kt: (8, 37): Cannot access built-in declaration 'kotlin.Boolean'. Ensure that you have a dependency on the Kotlin standard library

but guess I can find a solution

Thansk for the answers. We will probarly go with Marco´s suggestion.

it was actually harder than I thought because of https://github.com/gradle/gradle/issues/11696 and ofc it took me my own sample project to figure out I had a problem with test fixtures and spring boot plugin and know what to look for

Great @thanksforallthefish! Thanks for sharing 😄