@Test
@PrepareForTest(WXImageView.class)
public void testSetBackgroundColor() throws Exception {

  ImageView imageView = mWXImage.initComponentHostView(Robolectric.setupActivity(TestActivity.class));
  mWXImage.mHost = imageView;
  mWXImage.setBackgroundColor("#FFFFFF");
  Drawable drawable = mWXImage.getHostView().getBackground();
  assertEquals(drawable instanceof BorderDrawable, true);
}