assertEquals(statusCode, exception.getStatusCode());
        assertEquals(message, exception.getMessage());
    }

    @Test
    public void test_exceptionWithUnicodeMessage() {
        // Test with unicode characters in message
        int statusCode = 422;
        String message = "エラー: 無効なリクエスト 错误：无效请求 오류: 잘못된 요청";