@Test
    public void test_constructor() throws Exception {
        FullWidthToHalfWidthAlphabetNormalizer normalizer = new FullWidthToHalfWidthAlphabetNormalizer();
        assertNotNull(normalizer);
    }

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

        normalizerChain.add(new AnalyzerNormalizer(client, settings));
        /*
         * normalizerChain.add(new HankakuKanaToZenkakuKana()); normalizerChain.add(new
         * FullWidthToHalfWidthAlphabetNormalizer()); normalizerChain.add(new ICUNormalizer("Any-Lower"));
         */
        return normalizerChain;
    }

    /**