libsbmlcs.Model.createCompartment C# (CSharp) Method

        public Compartment createCompartment()
        {
            IntPtr cPtr = libsbmlPINVOKE.Model_createCompartment(swigCPtr);
            Compartment ret = (cPtr == IntPtr.Zero) ? null : new Compartment(cPtr, false);
            return ret;
        }

 public void test_ListOf_append()
 {
     Model m = new  Model(2,4);
       m.createCompartment();
       ListOf loc = m.getListOfCompartments();
       assertTrue( loc.size() == 1 );
       SBase c = new  Compartment(2,4);
       int i = loc.append(c);
       assertTrue( i == libsbml.LIBSBML_OPERATION_SUCCESS );
       assertTrue( loc.size() == 2 );
       SBase sp = new  Species(2,4);
       i = loc.append(sp);
       assertTrue( i == libsbml.LIBSBML_INVALID_OBJECT );
       assertTrue( loc.size() == 2 );
       m = null;
       sp = null;
 }