@Test
public void testDrawable() {

    Bitmap bitmap = Bitmap.createBitmap(200, 100, Bitmap.Config.ARGB_8888);
    CircularDrawable drawable = new CircularDrawable(bitmap);
    Canvas canvas = Mockito.mock(Canvas.class);
    drawable.draw(canvas);
    Mockito.verify(canvas, Mockito.times(1)).drawCircle(Mockito.anyFloat(),
            Mockito.anyFloat(), Mockito.anyFloat(), (Paint)Mockito.any());
}