libsbmlcs.UnitDefinition.createUnit C# (CSharp) Method

        public Unit createUnit()
        {
            IntPtr cPtr = libsbmlPINVOKE.UnitDefinition_createUnit(swigCPtr);
            Unit ret = (cPtr == IntPtr.Zero) ? null : new Unit(cPtr, false);
            return ret;
        }

 public void test_UnitDefinition_printUnits()
 {
     UnitDefinition ud = new  UnitDefinition(2,4);
       ud.setId( "mmls");
       Unit perTime = ud.createUnit();
       perTime.setKind(libsbml.UnitKind_forName("second"));
       perTime.setExponent(-1);
       string ud_str = UnitDefinition.printUnits(ud,false);
       assertTrue((                 "second (exponent = -1, multiplier = 1, scale = 0)" == ud_str ));
       string ud_str1 = UnitDefinition.printUnits(ud,true);
       assertTrue((  "(1 second)^-1" == ud_str1 ));
       UnitDefinition ud1 = new  UnitDefinition(2,4);
       ud1.setId( "mmls");
       Unit u = ud1.createUnit();
       u.setKind(libsbml.UNIT_KIND_KILOGRAM);
       u.setExponent(1);
       u.setScale(2);
       u.setMultiplier(3.0);
       string ud_str2 = UnitDefinition.printUnits(ud1,false);
       assertTrue((                 "kilogram (exponent = 1, multiplier = 3, scale = 2)" == ud_str2 ));
       string ud_str3 = UnitDefinition.printUnits(ud1,true);
       assertTrue((  "(300 kilogram)^1" == ud_str3 ));
 }