/** Transliterator for full-width to half-width conversion. */
    protected Transliterator fullWidthHalfWidth;

    /** Transliterator for any-lower. */
    protected Transliterator anyLower;

    /**
     * Constructor for KatakanaToAlphabetConverter.
     */
    public KatakanaToAlphabetConverter() {
        fullWidthHalfWidth = Transliterator.getInstance("Fullwidth-Halfwidth");

        String text = "テスト";
        String field = "content";

        List<String> results = converter.convert(text, field, "ja");

        assertNotNull(results);
        // Should use Japanese analyzer and transliterator
    }

    @Test
    public void testConvertWithMixedLanguageText() throws IOException {
        // Test convert with mixed language text
        String text = "test テスト";
        String field = "content";