Robolectric: Resources$NotFoundException: String resource ID with Android Gradle Plugin 3

Question

Android Studio 3.0 Beta2
classpath \'com.android.tools.build:gradle:3.0.0-beta3\'
testCompile \'org.robolectric:robolectric:3.4.2\'

Test class that

Answer 1

As mentioned by an engineer from Google team (most possibly Xavier Ducrohet), Robolectric has issues with AAPT2:

Robolectric is not compatible with aapt2.

Two options here.

First option - follow Robolectric guidelines for Android Studio 3.0+

Add the following to your build.gradle:

android {
  testOptions {
    unitTests {
      includeAndroidResources = true
    }
  }
}

Annotate your test with the Robolectric test runner:

@RunWith(RobolectricTestRunner.class)
public class SandwichTest {
}

---

Second option: disable AAPT2 adding following line into gradle.properties file:

android.enableAapt2=false