Unable to unit test in Kotlin (ExecutionException, Aapt2Exception)

Question

A simple test ...

import org.junit.Test

class KotlinUnitTest {

    @Test
    fun test() {
        assert(true)
    }
}

... leads to the following ...

Information:Gradle: Executing tasks: [:app:assembleDebug, :app:assembleDebugUnitTest]
Information:Kotlin: Kotlin JPS plugin is disabled
Information:Module "app" was fully rebuilt due to project configuration/dependencies changes
Information:06/12/2017 5:08 PM - Compilation completed with 3 errors and 0 warnings in 19s 962ms
Error:Gradle: java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details
Error:Gradle: java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details
Error:Gradle: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details

Adding android.enableAapt2=falseto gradle.properties (or also gradle -wrapper.properties ) made Android Studio stop infinitely every time I ran the test.

This is strange because I can ...

• Launch my production application (filled with Kotlin files)
• Unit test in Java

But for some reason I can’t check in Kotlin

Answer 1

AAPT2 kotlin. Android Studio, Run Configuration Kotlin. , , , .

.

:

, , .

BTW: , , .

Answer 2

. :

@RunWith(RobolectricTestRunner::class)
@Config(constants = BuildConfig::class)
class MainActivityTest {
    private lateinit var activityController: ActivityController<MainActivity>

    @Before
    @Throws(Exception::class)
    fun setUp() {
        activityController = Robolectric.buildActivity(MainActivity::class.java)

        activityController.create().start().resume()

    }

    @Test
    @Throws(Exception::class)
    fun testNotBeNull() {
        assertNotNull(activityController.get())
    }

}

Kotlin 1.1.60 Gradle 3.0.1.