  @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);
  }