@Test
  public void testGetSourceHeight() {
    final int h = levelImageSupport.getSourceHeight();

    assertEquals(1120, h);

    assertEquals(1, levelImageSupport.getSourceHeight(0));
    assertEquals(1, levelImageSupport.getSourceHeight(1));

    assertEquals(h - 1, levelImageSupport.getSourceHeight(h - 1));
    assertEquals(h, levelImageSupport.getSourceHeight(h));
    assertEquals(h, levelImageSupport.getSourceHeight(h + 1));
  }
  @Test
  public void testGetSourceWidth() {
    final int w = levelImageSupport.getSourceWidth();

    assertEquals(760, w);

    assertEquals(1, levelImageSupport.getSourceWidth(0));
    assertEquals(1, levelImageSupport.getSourceWidth(1));

    assertEquals(w - 1, levelImageSupport.getSourceWidth(w - 1));
    assertEquals(w, levelImageSupport.getSourceWidth(w));
    assertEquals(w, levelImageSupport.getSourceWidth(w + 1));
  }