assertArrays(new String[] { "ja" }, fessConfig.normalizeQueryLanguages(new String[] { "ja-jp" }));
        assertArrays(new String[] { "ja" }, fessConfig.normalizeQueryLanguages(new String[] { "ja_JP" }));
        assertArrays(new String[] { "ja", "zh-cn" }, fessConfig.normalizeQueryLanguages(new String[] { "ja", "zh" }));

        // Test that method is case sensitive (as per implementation)
        assertNull(languageHelper.getSupportedLanguage("JA"));
        assertNull(languageHelper.getSupportedLanguage("EN"));
        assertEquals("ja", languageHelper.getSupportedLanguage("ja"));
        assertEquals("en", languageHelper.getSupportedLanguage("en"));
    }

    @Test
    public void test_updateDocument_emptyLangFields() {

        // Test convert with multiple languages
        String text = "test text";
        String field = "content";

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

        assertNotNull(results);
        // With multiple languages, should use ReadingConverterChain
    }

    @Test
    public void testConvertWithEmptyText() throws IOException {

        // Test convert with multiple languages
        converter.init();
        String text = "test";
        String field = "content";

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

        assertNotNull(readings);
        assertEquals(3, readings.size());
        assertEquals("TEST_en", readings.get(0));
        assertEquals("TEST_ja", readings.get(1));

        value.clear();

        List<String> keys = Arrays.asList("test_2", "test_0", "lang", "test_1");
        value.put(keys.get(0), true);
        value.put(keys.get(1), 1000);
        value.put(keys.get(2), "ja");
        value.put(keys.get(3), "str");
        docMap = new DocMap(value);
        assertFalse(docMap.isEmpty());

        Set<Map.Entry<String, Object>> actual = docMap.entrySet();

        assertTrue(fieldSet.contains("field3"));
    }

    @Test
    public void testMerge_languages() {
        SuggestItem item1 = createItemWithLanguages("text", "en", "ja");
        SuggestItem item2 = createItemWithLanguages("text", "ja", "zh");

        SuggestItem merged = SuggestItemMerger.merge(item1, item2);

        String[] languages = merged.getLanguages();

        AnalyzerNormalizer normalizer = new AnalyzerNormalizer(runner.client(), suggester.settings());

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

        assertNotNull(result);
    }

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

    <img src="https://img.shields.io/pypi/pyversions/fastapi.svg?color=%2334D058" alt="Supported Python versions">
</a>
</p>

---

**ドキュメント**: [https://fastapi.tiangolo.com/ja](https://fastapi.tiangolo.com/ja)

**ソースコード**: [https://github.com/fastapi/fastapi](https://github.com/fastapi/fastapi)

---

FastAPI は、Python の標準である型ヒントに基づいて Python で API を構築するための、モダンで、高速（高パフォーマンス）な Web フレームワークです。

主な特徴:

        assertTrue(readingAnalyzer.contains("_en") || readingAnalyzer.equals(AnalyzerSettings.READING_ANALYZER));

        String normalizeAnalyzer = settings.analyzer().getNormalizeAnalyzerName("", "ja");
        assertTrue(normalizeAnalyzer.contains("_ja") || normalizeAnalyzer.equals(AnalyzerSettings.NORMALIZE_ANALYZER));
    }

    @Test
    public void test_getAnalyzerName_withUnsupportedLanguage() {

     * @throws Exception
     */
    public void testGetLocale() throws Exception {
        assertEquals("1", LocaleUtil.getDefault(), LocaleUtil.getLocale(null));
        assertEquals("2", Locale.JAPANESE, LocaleUtil.getLocale("ja"));
        assertEquals("3", Locale.JAPAN, LocaleUtil.getLocale("ja_JP"));
    }