@Test
public void getElementPartitionTest() {

    String acpString = "C0N1C2P3C4N5";
    Partition expected = Partition.fromString("0,2,4|1,5|3");
    
    IAtomContainer ac = AtomContainerPrinter.fromString(acpString, builder);
    AtomRefinable refinable = new AtomRefinable(ac);
    
    Partition elPartition = refinable.getInitialPartition();
    Assert.assertEquals(expected, elPartition);
}