assertEquals(status, response.getErrorCode());
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 10, 100, 255 })
    @DisplayName("Should handle various credit values")
    void testVariousCreditValues(int credits) {
        response.setCreditForTest(credits);
        assertEquals(credits, response.getGrantedCredits());
    }