package org.robolectric.shadows; import android.os.Looper; import android.view.ViewRootImpl; import org.robolectric.annotation.Implementation; import org.robolectric.annotation.Implements; @Implements(value = ViewRootImpl.class, isInAndroidSdk = false) public class ShadowViewRootImpl { @Implementation public static Object getWindowSession(Looper mainLooper) { return null; } @Implementation public void playSoundEffect(int effectId) { } }