isSpace = removeLastDuplication(buf, alphanumSize, isSpace, termCache);
                            } else if (symbolSize > 0) {
                                isSpace = removeLastDuplication(buf, symbolSize, isSpace, termCache);
                            }
                        }
                        // space
                        if (!isSpace && !isLastSpaceChar(buf)) {

    }

    /**
     * Returns whether space trimming is enabled.
     * @return True if space trimming is enabled, false otherwise.
     */
    public boolean isTrimSpace() {
        return trimSpaceEnabled;
    }

    /**
     * Sets whether space trimming is enabled.
     * @param trimSpace The trim space flag to set.
     */
    public void setTrimSpace(final boolean trimSpace) {

    protected int initialBufferSize = 10000;

    /**
     * If true, duplicated terms are replaced.
     */
    protected boolean replaceDuplication = false;

    /**
     * Space characters. Default includes common space characters.
     */
    protected int[] spaceChars = { '\u0020', '\u00a0', '\u3000', '\ufffd' };

    /**
     * Memory size.
     */
    protected int memorySize = 1024 * 1024; //1mb

        if (Strings.isNullOrEmpty(badWord)) {
            return "badWord was empty.";
        }
        if (badWord.contains(" ") || badWord.contains("  ")) {
            return "badWord contains space.";
        }
        return null;
    }

    /**
     * Update default bad words.
     */
    protected static void updateDefaultBadwords() {
        if (defaultWords != null) {

    /**
     * A map of field rules.
     */
    protected Map<String, String> fieldRuleMap = new LinkedHashMap<>();

    /** a flag to trim a space characters. */
    protected boolean trimSpaceEnabled = true;

    /**
     * The charset name.
     */
    protected String charsetName = Constants.UTF_8;

    /**

     */
    public void test_name_boundaryCases() {
        // Single character
        testTransformer.setName("a");
        assertEquals("a", testTransformer.getName());

        // Single space
        testTransformer.setName(" ");
        assertEquals(" ", testTransformer.getName());

        // Single Unicode character
        testTransformer.setName("あ");

        SuggestItem item = new SuggestItem(text, readings, fields, 100L, 50L, 1.5f, tags, roles, languages, kind);

        assertNotNull(item);
        assertEquals("test text", item.getText()); // Text is joined with space
        assertArrayEquals(readings, item.getReadings());
        assertArrayEquals(fields, item.getFields());
        assertArrayEquals(tags, item.getTags());
        assertArrayEquals(roles, item.getRoles());