Map<String, Object> doc = new HashMap<>();
        doc.put("special", "!@#$%^&*()_+-=[]{}|;':\",./<>?");
        doc.put("unicode", "こんにちは世界");
        doc.put("emoji", "😀🎉");

        SearchResult result = SearchResult.create().addDocument(doc).build();

        assertEquals(1, result.getDocumentList().size());

        assertEquals(3, result.length);
        assertEquals("日本語", result[0]);
        assertEquals("한국어", result[1]);
        assertEquals("\"中文\"", result[2]);

        // Emoji and special symbols - quotes preserved
        value = "\"🚀rocket\",\"@symbol\",\"#hashtag\"";
        result = KuromojiCSVUtil.parse(value);
        assertEquals(3, result.length);

 *  **OkHttp now rejects request headers that contain invalid characters.** This
    includes potential security problems (newline characters) as well as simple
    non-ASCII characters (including international characters and emoji).

 *  **Call canceling is more reliable.**  We had a bug where a socket being
     connected wasn't being closed when the application used `Call.cancel()`.