public void test_Rule_setUnits3()
        {
            Rule R1 = new  AssignmentRule(1, 2);

            R1.setL1TypeCode(libsbml.SBML_PARAMETER_RULE);
            int i = R1.setUnits("1second");

            assertTrue(i == libsbml.LIBSBML_INVALID_ATTRIBUTE_VALUE);
            assertEquals(false, R1.isSetUnits());
            i = R1.unsetUnits();
            assertTrue(i == libsbml.LIBSBML_OPERATION_SUCCESS);
            assertEquals(false, R1.isSetUnits());
            R1 = null;
        }