@Test
public void testGetOvalIfInnerCornerExist() throws Exception {

  RectF topLeft = createBorderCorner(TOP_LEFT, 100, 10, 50, borderBox)
      .getOvalIfInnerCornerExist();
  assertThat(topLeft, is(new RectF(5, 25, 195, 175)));
  RectF topRight = createBorderCorner(TOP_RIGHT, 100, 10, 50, borderBox)
      .getOvalIfInnerCornerExist();
  assertThat(topRight, is(new RectF(225, 5, 375, 195)));
  RectF bottomRight = createBorderCorner(BOTTOM_RIGHT, 100, 10, 50, borderBox)
      .getOvalIfInnerCornerExist();
  assertThat(bottomRight, is(new RectF(205, 225, 395, 375)));
  RectF bottomLeft = createBorderCorner(BOTTOM_LEFT, 100, 10, 50, borderBox)
      .getOvalIfInnerCornerExist();
  assertThat(bottomLeft, is(new RectF(25, 205, 175, 395)));
}