}

    @Test
    public void hasMoreElements_initially_returnsTrue() {
        DummyResponse d = new DummyResponse();
        assertTrue(d.hasMoreElements(), "With default values hasMoreElements should be true");
    }

    @Test
    public void hasMoreElements_errorCodeNonZero_returnsFalse() {
        DummyResponse d = new DummyResponse();
        d.setErrorCode(123); // non-zero error