String result = chain.normalize("ａｂｃ", "field", "en", "ja");

        assertEquals("abc", result);
    }

    @Test
    public void test_addMultipleNormalizersInOrder() throws Exception {
        NormalizerChain chain = new NormalizerChain();
        Normalizer normalizer1 = (text, field, langs) -> text + "-1";
        Normalizer normalizer2 = (text, field, langs) -> text + "-2";

        HankakuKanaToZenkakuKana normalizer = new HankakuKanaToZenkakuKana();

        String result = normalizer.normalize("ｱｲｳｴｵ", "field");

        assertEquals("アイウエオ", result);
    }

    @Test
    public void test_voicedSounds() throws Exception {
        HankakuKanaToZenkakuKana normalizer = new HankakuKanaToZenkakuKana();

        String result = normalizer.normalize("ｶﾞｷﾞｸﾞｹﾞｺﾞ", "field");

                chain.add(new LangAnalyzerNormalizer(lang));
            }
            normalizer = chain;
        }
        return normalizer.normalize(text, field);
    }

    /**
     * Language-specific analyzer normalizer.
     */
    protected class LangAnalyzerNormalizer implements Normalizer {
        /**
         * The language used for normalization.
         */
        protected final String lang;

        String result = normalizer.normalize("ＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺ", "field");

        assertEquals("ABCDEFGHIJKLMNOPQRSTUVWXYZ", result);
    }

    @Test
    public void test_mixedAlphabet() throws Exception {
        FullWidthToHalfWidthAlphabetNormalizer normalizer = new FullWidthToHalfWidthAlphabetNormalizer();

        for (final Normalizer normalizer : normalizers) {
            tmp = normalizer.normalize(tmp, field, langs);
            if (tmp == null) {
                return null;
            }
        }
        return tmp;
    }

    /**
     * Adds a normalizer to the chain.
     * @param normalizer The normalizer to add.
     * @throws IllegalArgumentException if normalizer is null
     */

 *
 * <p>Example usage:</p>
 * <pre>
 * ICUNormalizer normalizer = new ICUNormalizer("Any-Latin; NFD; [:Nonspacing Mark:] Remove; NFC");
 * String normalizedText = normalizer.normalize("text to normalize", "field");
 * </pre>
 *
 * @see com.ibm.icu.text.Transliterator
 */
public class ICUNormalizer implements Normalizer {
    /** The transliterator used for normalization. */

 */
package org.codelibs.fess.suggest.normalizer;

import junit.framework.TestCase;

public class ICUNormalizerTest extends TestCase {
    public void test_FullwidthHalfwidth() {
        ICUNormalizer normalizer = new ICUNormalizer("Fullwidth-Halfwidth");

        assertEquals("abcd", normalizer.normalize("ａｂｃｄ", null));
        assertEquals("みかん", normalizer.normalize("みかん", null));

        assertNotNull(result);
    }

    @Test
    public void test_normalizeEmptyString() throws Exception {
        AnalyzerNormalizer normalizer = new AnalyzerNormalizer(runner.client(), suggester.settings());

        String result = normalizer.normalize("", "content");

        assertNotNull(result);
    }

    @Test

 * <pre>
 * {@code
 * HankakuKanaToZenkakuKana normalizer = new HankakuKanaToZenkakuKana();
 * String normalized = normalizer.normalize("ｶﾞｷﾞｸﾞｹﾞｺﾞ", "field");
 * System.out.println(normalized); // Outputs: ガギグゲゴ
 * }
 * </pre>
 *
 * <p>Note: This class assumes that the input string contains valid Hankaku Kana characters
 * and does not perform any validation on the input.</p>
 *
 * @see Normalizer
 */

        this.readingConverter = readingConverter;
        return this;
    }

    /**
     * Sets the normalizer.
     * @param normalizer The normalizer.
     * @return This SuggestIndexer instance.
     */
    public SuggestIndexer setNormalizer(final Normalizer normalizer) {
        this.normalizer = normalizer;
        return this;
    }

    /**
     * Sets the analyzer.
     * @param analyzer The analyzer.