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

        assertEquals("ABCDEFGHIJKLMNOPQRSTUVWXYZ", result);
    }

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

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