Gradle plugins can use internal API to wrap test executor and set it to Test.testExecuter field. KGP overrides createTestExecutor ignoring this possibility. So in result testExecutor might be wrapped several times with KGP's executor.

For example, when the test-retry plugin is applied, we get the following test executor hierarchy:

KotlinJvmTarget$Executor(
  RetryTestExecuter(
    KotlinJvmTarget$Executor(
      DefaultTestExecuter
    )
  )
)

This breaks two things:

• Tests naming as targetName is appended twice
• Test retry itself, as it needs the executor to be an instance of RetryTestExecutor.

Fixes:

• KT-49155 MPP, Gradle: Cannot use test-retry-gradle-plugin with Kotlin multiplatform tests
• Cannot use this plugin in tandem with Kotlin Multiplatform Tests gradle/test-retry-gradle-plugin#116