@Test
public void testGetAllBoundingBox(){

    List<BoundingBox> bbs = c1.getAllBoundingBoxList();
    assertTrue(bbs.size()==2);
    Envelope exp1 = new Envelope(40,50,40,50);
    Envelope exp2 = new Envelope(1,5,4,6);
    Envelope real0 = bbs.get(0).getEnvelope();
    Envelope real1 = bbs.get(1).getEnvelope();
    assertTrue(exp1.equals(real0) || exp2.equals(real0));
    assertTrue(exp1.equals(real1) || exp2.equals(real1));
    assertFalse(real1.equals(real0));
}