@Test
public void testClone() {

    Orbit clonedOrbit = (Orbit) orbit.clone();
    List<Integer> indices = orbit.getAtomIndices();
    List<Integer> clonedIndices = clonedOrbit.getAtomIndices();
    Assert.assertEquals(indices, clonedIndices);
    Assert.assertEquals(orbit.getLabel(), clonedOrbit.getLabel());
}