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

        assertNotNull(results);
        // Results should contain Katakana conversion
    }

    @Test
    public void testLangAnalyzerConverterInit() throws IOException {
        // Test inner class LangAnalyzerConverter init
        AnalyzerConverter.LangAnalyzerConverter langConverter = converter.new LangAnalyzerConverter("en");