Robolectric @Config

/*
 *  Find the AndroidManifest.xml at 
 *  1. Java resource, or
 *  2. build/intermediates/manifests/[full or fast-start]/[build-type], 
 *     which is generated by merging the AndroidManifest.xml files in 
 *     src/main or source folder of other build variants.
 */
 
@Runner(RobolectricTestRunner.class)
@Config(manifest="AndroidManifest.xml")
public class ExampleTest {

    @Test
    public void testResources() throws Exception {
        Drawable drawable = RuntimeEnvironment.application.getResources()
                  .getDrawable(R.drawable.app_icon);
        assertNotNull(drawable);
    }

}