@Test
    public void test_determineAlias_multipleLocales() {
        // Test with various locale configurations
        Locale[] testLocales = { Locale.US, Locale.UK, Locale.CANADA, Locale.FRANCE, Locale.CHINA, Locale.KOREA, new Locale("es", "ES"),
                new Locale("pt", "BR") };

        for (Locale locale : testLocales) {
            OptionalThing<String> result = provider.determineAlias(locale);

### Target language

Translate to Korean (한국어).

Language code: ko.

### Grammar and tone

- Use polite, instructional Korean (e.g. 합니다/하세요 style).
- Keep the tone consistent with the existing Korean FastAPI docs.
- Do not translate “You” literally as “당신”. Use “여러분” where appropriate, or omit the subject if it sounds more natural in Korean.

### Headings

- Follow existing Korean heading style (short, action-oriented headings like “확인하기”).

- [Español (Spanish)](docs/es/README.md)
- [Português (Brazilian Portuguese)](docs/pt-BR/README.md)
- [Français (French)](docs/fr/README.md)
- [Deutsch (German)](docs/de/README.md)
- [한국어 (Korean)](docs/ko/README.md)

## Powered By

* [Lasta Di](https://github.com/lastaflute/lasta-di "Lasta Di"): DI Container
* [LastaFlute](https://github.com/lastaflute/lastaflute "LastaFlute"): Web Framework

* 🌐 Update Korean translation for `docs/ko/docs/help-fastapi.md`. PR [#13262](https://github.com/fastapi/fastapi/pull/13262) by [@Zerohertz](https://github.com/Zerohertz).
* 🌐 Add Korean translation for `docs/ko/docs/advanced/custom-response.md`. PR [#13265](https://github.com/fastapi/fastapi/pull/13265) by [@11kkw](https://github.com/11kkw).

        assertTrue("Should contain Japanese", item.getText().contains("日本語"));
        assertTrue("Should contain Chinese", item.getText().contains("中文"));
        assertTrue("Should contain Korean", item.getText().contains("한국어"));
        assertTrue("Should contain Arabic", item.getText().contains("العربية"));
    }

    @Test
    public void test_textWithWhitespace() {