user.setExtension("1234");
user.getAliases().add("1234");
    public void testSave() throws Exception {        TestHelper.cleanInsert("ClearDb.xml");        User user = new User();        user.setUserName("userid");        user.setFirstName("FirstName");        user.setLastName("LastName");        user.setPintoken("password");        user.setSipPassword("sippassword");        user.setExtension("1234");        core.saveUser(user);        IDataSet expectedDs = TestHelper.loadDataSetFlat("common/SaveUserExpected.xml");        ReplacementDataSet expectedRds = new ReplacementDataSet(expectedDs);        expectedRds.addReplacementObject("[user_id]", user.getId());        expectedRds.addReplacementObject("[null]", null);        ITable expected = expectedRds.getTable("users");        ITable actual = TestHelper.getConnection().createQueryTable("users",                "select * from users where user_name='userid'");        Assertion.assertEquals(expected, actual);    }