@Test
  public void testIntrinsicDimensions() {
    when(mLayers[0].getIntrinsicWidth()).thenReturn(100);
    when(mLayers[1].getIntrinsicWidth()).thenReturn(200);
    when(mLayers[2].getIntrinsicWidth()).thenReturn(150);
    when(mLayers[0].getIntrinsicHeight()).thenReturn(400);
    when(mLayers[1].getIntrinsicHeight()).thenReturn(350);
    when(mLayers[2].getIntrinsicHeight()).thenReturn(300);
    Assert.assertEquals(200, mFadeDrawable.getIntrinsicWidth());
    Assert.assertEquals(400, mFadeDrawable.getIntrinsicHeight());
  }
Tests {@link FadeDrawable} with the default configuration.

@see FadeDrawableAllOnTest for more tests
drawee/src/test/java/com/facebook/drawee/drawable/FadeDrawableTest.java