libsbml.SBMLDocument.createModel C# (CSharp) Method

        public Model createModel()
        {
            IntPtr cPtr = libsbmlPINVOKE.SBMLDocument_createModel__SWIG_1(swigCPtr);
            Model ret = (cPtr == IntPtr.Zero) ? null : new Model(cPtr, false);
            return ret;
        }

 public void test_SBMLConvertStrict_convertNonStrictSBO()
 {
     SBMLDocument d = new  SBMLDocument(2,4);
       Model m = d.createModel();
       Compartment c = m.createCompartment();
       c.setId( "c");
       c.setConstant(false);
       (c).setSBOTerm(64);
       assertTrue( d.setLevelAndVersion(2,3,true) == false );
       assertTrue( d.getLevel() == 2 );
       assertTrue( d.getVersion() == 4 );
       assertTrue( d.setLevelAndVersion(2,2,true) == false );
       assertTrue( d.getLevel() == 2 );
       assertTrue( d.getVersion() == 4 );
       assertTrue( d.setLevelAndVersion(2,1,true) == true );
       assertTrue( d.getLevel() == 2 );
       assertTrue( d.getVersion() == 1 );
       Compartment c1 = d.getModel().getCompartment(0);
       assertTrue( (c1).getSBOTerm() == -1 );
       assertTrue( d.setLevelAndVersion(1,2,true) == true );
       assertTrue( d.getLevel() == 1 );
       assertTrue( d.getVersion() == 2 );
       Compartment c2 = d.getModel().getCompartment(0);
       assertTrue( (c2).getSBOTerm() == -1 );
       d = null;
 }