@Test
public void disorderedElementPartitionTest() {

    IAtomContainer ac = makeAtomContainer("NNNNCCCCOOOO");
    Partition expected = Partition.fromString("4,5,6,7|0,1,2,3|8,9,10,11");
    
    AtomRefinable refinable = new AtomRefinable(ac);
    
    Partition elPartition = refinable.getInitialPartition();
    Assert.assertEquals(expected, elPartition);
}