libsbmlcs.Unit.setOffset C# (CSharp) Method

        public int setOffset(double value)
        {
            int ret = libsbmlPINVOKE.Unit_setOffset(swigCPtr, value);
            return ret;
        }

 public void test_SBMLDocument_setLevelAndVersion_Error()
 {
     SBMLDocument d = new  SBMLDocument();
       d.setLevelAndVersion(2,1,true);
       Model m1 = new  Model(2,1);
       Unit u = new  Unit(2,1);
       u.setKind(libsbml.UnitKind_forName("mole"));
       u.setOffset(3.2);
       UnitDefinition ud = new  UnitDefinition(2,1);
       ud.setId( "ud");
       ud.addUnit(u);
       m1.addUnitDefinition(ud);
       d.setModel(m1);
       assertTrue( d.setLevelAndVersion(2,2,true) == false );
       assertTrue( d.setLevelAndVersion(2,3,true) == false );
       assertTrue( d.setLevelAndVersion(1,2,true) == false );
       assertTrue( d.setLevelAndVersion(1,1,true) == false );
       d = null;
 }