assertEquals(statusCode, exception.getStatusCode());
        assertNull(exception.getMessage());
        assertEquals(cause, exception.getCause());
    }

    public void test_statusCode_variousHttpCodes() {
        // Test with various HTTP status codes
        int[] statusCodes = { 200, 201, 400, 401, 403, 404, 500, 502, 503 };

        for (int statusCode : statusCodes) {