public void ToLanguageTag_FWIcuLocales_ReturnsLanguageTags()
{
// convert older FW language tags
Assert.AreEqual("slu", IetfLanguageTag.ToLanguageTag("eslu"));
// other possibilities from FW6.0.6
Assert.AreEqual("qaa-x-bcd", IetfLanguageTag.ToLanguageTag("x123"));
Assert.AreEqual("qaa-x-kac", IetfLanguageTag.ToLanguageTag("xka2"));
}
public void ToLanguageTag_EnglishIcuLocales_ReturnsEnglishLanguageTags()
{
// language
Assert.AreEqual("en", IetfLanguageTag.ToLanguageTag("en"));
// language, script
Assert.AreEqual("en", IetfLanguageTag.ToLanguageTag("en_Latn"));
// language, region
Assert.AreEqual("en-US", IetfLanguageTag.ToLanguageTag("en_US"));
// language, script, region, ICU variant
Assert.AreEqual("en-US-fonipa-x-etic", IetfLanguageTag.ToLanguageTag("en_Latn_US_X_ETIC"));
// language, ICU variant
Assert.AreEqual("en-fonipa-x-emic", IetfLanguageTag.ToLanguageTag("en__X_EMIC"));
}
public void ToLanguageTag_PrivateUseIcuLocales_ReturnsPrivateUseLanguageTags()
{
// private use language
Assert.AreEqual("qaa-x-kal", IetfLanguageTag.ToLanguageTag("xkal"));
// private use language, custom ICU variant
Assert.AreEqual("qaa-fonipa-x-kal", IetfLanguageTag.ToLanguageTag("xkal__IPA"));
// private use language, (standard) private use region
Assert.AreEqual("qaa-XA-x-kal", IetfLanguageTag.ToLanguageTag("xkal_XA"));
// private use language, (non-standard) private use script
Assert.AreEqual("qaa-Qaaa-x-kal-Fake", IetfLanguageTag.ToLanguageTag("xkal_Fake"));
// language, private use script
Assert.AreEqual("en-Qaaa-x-Fake", IetfLanguageTag.ToLanguageTag("en_Fake"));
// language, private use script, private use region
Assert.AreEqual("en-Qaaa-QM-x-Fake-QD", IetfLanguageTag.ToLanguageTag("en_Fake_QD"));
// private use language, script
Assert.AreEqual("qaa-Latn-x-zzz", IetfLanguageTag.ToLanguageTag("zzz_Latn"));
}
public void ToLanguageTag_AlreadyLanguageTag_NoChange()
{
// following are already lang tags
Assert.AreEqual("en-US", IetfLanguageTag.ToLanguageTag("en-US"));
Assert.AreEqual("en-Latn-US-fonipa-x-etic", IetfLanguageTag.ToLanguageTag("en-Latn-US-fonipa-x-etic"));
}
public void ToLanguageTag_ChinesePinyinIcuLocale_ReturnsChineseLanguageTag()
{
// language, region, ICU variant
Assert.AreEqual("zh-CN-pinyin", IetfLanguageTag.ToLanguageTag("zh_CN_X_PY"));
}