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// |reftest| skip-if(!this.hasOwnProperty('Intl'))
const tests = {
"en": {
long: {
"de": "German",
"de-AT": "German (Austria)",
"de-1996": "German (German orthography of 1996)",
"en": "English",
"en-Hant-GB": "English (Traditional, United Kingdom)",
"en-Hans-US": "English (Simplified, United States)",
"fr": "French",
"nl-BE": "Dutch (Belgium)",
"cr-Cans": "Cree (Unified Canadian Aboriginal Syllabics)",
},
short: {
"en-Hant-GB": "English (Traditional, UK)",
"en-Hans-US": "English (Simplified, US)",
"cr-Cans": "Cree (UCAS)",
},
narrow: {},
},
"de": {
long: {
"de": "Deutsch",
"de-AT": "Deutsch (Österreich)",
"de-1996": "Deutsch (Neue deutsche Rechtschreibung)",
"en": "Englisch",
"en-Hant-GB": "Englisch (Traditionell, Vereinigtes Königreich)",
"en-Hans-US": "Englisch (Vereinfacht, Vereinigte Staaten)",
"fr": "Französisch",
"nl-BE": "Niederländisch (Belgien)",
},
short: {
"en-Hant-GB": "Englisch (Traditionell, UK)",
"en-Hans-US": "Englisch (Vereinfacht, USA)",
},
narrow: {},
},
"fr": {
long: {
"de": "allemand",
"de-AT": "allemand (Autriche)",
"de-1996": "allemand (orthographe allemande de 1996)",
"en": "anglais",
"en-Hant-GB": "anglais (traditionnel, Royaume-Uni)",
"en-Hans-US": "anglais (simplifié, États-Unis)",
"fr": "français",
"nl-BE": "néerlandais (Belgique)",
},
short: {
"en-Hant-GB": "anglais (traditionnel, R.-U.)",
"en-Hans-US": "anglais (simplifié, É.-U.)",
},
narrow: {},
},
"zh": {
long: {
"zh": "中文",
"zh-Hant": "中文（繁体）",
"zh-Hant-CN": "中文（繁体，中国）",
"zh-Hans-HK": "中文（简体，中国香港特别行政区）",
},
short: {
"zh-Hans-HK": "中文（简体，香港）"
},
narrow: {},
},
"ar": {
long: {
"ar": "العربية",
"ar-SA": "العربية (المملكة العربية السعودية)",
"zh-MO": "الصينية (منطقة ماكاو الإدارية الخاصة)",
},
short: {
"zh-MO": "الصينية (مكاو)",
},
narrow: {},
},
};
for (let [locale, localeTests] of Object.entries(tests)) {
for (let [style, styleTests] of Object.entries(localeTests)) {
let dn = new Intl.DisplayNames(locale, {type: "language", languageDisplay: "standard", style});
let resolved = dn.resolvedOptions();
assertEq(resolved.locale, locale);
assertEq(resolved.style, style);
assertEq(resolved.type, "language");
assertEq(resolved.languageDisplay, "standard");
assertEq(resolved.fallback, "code");
let inheritedTests = {...localeTests.long, ...localeTests.short, ...localeTests.narrow};
for (let [language, expected] of Object.entries({...inheritedTests, ...styleTests})) {
assertEq(dn.of(language), expected);
// Also works with objects.
assertEq(dn.of(Object(language)), expected);
}
}
}
{
let dn = new Intl.DisplayNames("en", {type: "language"});
// Performs ToString on the input and then validates the stringified result.
assertThrowsInstanceOf(() => dn.of(), RangeError);
assertThrowsInstanceOf(() => dn.of(null), RangeError);
assertThrowsInstanceOf(() => dn.of(Symbol()), TypeError);
assertThrowsInstanceOf(() => dn.of(0), RangeError);
// Throws an error if |code| can't be parsed as a `unicode_language_id` production.
assertThrowsInstanceOf(() => dn.of("en-"), RangeError);
assertThrowsInstanceOf(() => dn.of("en-u-ca-gregory"), RangeError);
assertThrowsInstanceOf(() => dn.of("en-x-private"), RangeError);
}
// Test fallback behaviour.
{
let dn1 = new Intl.DisplayNames("en", {type: "language"});
let dn2 = new Intl.DisplayNames("en", {type: "language", fallback: "code"});
let dn3 = new Intl.DisplayNames("en", {type: "language", fallback: "none"});
assertEq(dn1.resolvedOptions().fallback, "code");
assertEq(dn2.resolvedOptions().fallback, "code");
assertEq(dn3.resolvedOptions().fallback, "none");
// "aaa" is not a registered language code.
assertEq(dn1.of("aaa"), "aaa");
assertEq(dn2.of("aaa"), "aaa");
assertEq(dn3.of("aaa"), undefined);
// "aaa" is not a registered language code.
assertEq(dn1.of("aaa-Latn"), "aaa-Latn");
assertEq(dn2.of("aaa-Latn"), "aaa-Latn");
assertEq(dn3.of("aaa-Latn"), undefined);
// "Aaaa" is not a registered script code.
assertEq(dn1.of("en-Aaaa"), "en-Aaaa");
assertEq(dn2.of("en-Aaaa"), "en-Aaaa");
assertEq(dn3.of("en-Aaaa"), undefined);
// "AA" is not a registered region code.
assertEq(dn1.of("en-AA"), "en-AA");
assertEq(dn2.of("en-AA"), "en-AA");
assertEq(dn3.of("en-AA"), undefined);
// "XZ" doesn't have any localised names.
assertEq(dn1.of("en-XZ"), "en-XZ");
assertEq(dn2.of("en-XZ"), "en-XZ");
assertEq(dn3.of("en-XZ"), undefined);
// "998" is canonicalised to "XZ".
assertEq(dn1.of("en-998"), "en-XZ");
assertEq(dn2.of("en-998"), "en-XZ");
assertEq(dn3.of("en-998"), undefined);
// The returned fallback is in canonical case.
assertEq(dn1.of("AAA"), "aaa");
assertEq(dn2.of("AAA"), "aaa");
assertEq(dn3.of("AAA"), undefined);
assertEq(dn1.of("En-aaaa"), "en-Aaaa");
assertEq(dn2.of("En-aaaa"), "en-Aaaa");
assertEq(dn3.of("En-aaaa"), undefined);
assertEq(dn1.of("EN-aa"), "en-AA");
assertEq(dn2.of("EN-aa"), "en-AA");
assertEq(dn3.of("EN-aa"), undefined);
}
// Ensure language tag canonicalisation is performed.
{
let dn = new Intl.DisplayNames("en", {type: "language", fallback: "none"});
assertEq(dn.of("ru-RU"), "Russian (Russia)");
// ICU's canonicalisation supports "SU" -> "RU".
assertEq(Intl.getCanonicalLocales("ru-SU")[0], "ru-RU");
assertEq(dn.of("ru-SU"), "Russian (Russia)");
// ICU's canonicalisation doesn't support "172" -> "RU".
assertEq(Intl.getCanonicalLocales("ru-172")[0], "ru-RU");
assertEq(dn.of("ru-172"), "Russian (Russia)");
}
// Test when case isn't canonical.
{
let dn = new Intl.DisplayNames("en", {type: "language", fallback: "none"});
assertEq(dn.of("IT-LATN-IT"), "Italian (Latin, Italy)");
assertEq(dn.of("it-latn-it"), "Italian (Latin, Italy)");
}
// resolvedOptions() only outputs "languageDisplay" when the type is "language".
{
let dn1 = new Intl.DisplayNames("en", {type: "language"});
let dn2 = new Intl.DisplayNames("en", {type: "script"});
assertEq(dn1.resolvedOptions().languageDisplay, "dialect");
assertEq(dn2.resolvedOptions().hasOwnProperty("languageDisplay"), false);
}
if (typeof reportCompare === "function")
reportCompare(true, true);
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