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// |reftest| skip-if(!this.hasOwnProperty("Intl"))
if (typeof getAvailableLocalesOf === "undefined") {
var getAvailableLocalesOf = SpecialPowers.Cu.getJSTestingFunctions().getAvailableLocalesOf;
}
// Retrieve all available locales of Intl.DateTimeFormat.
const available = getAvailableLocalesOf("DateTimeFormat");
const options = [
// Include "hour" to catch hour cycle differences.
//
// For example "ff-Latn-GH" (Fulah as spoken in Ghana) uses a 12-hour clock,
// whereas "ff" (Fulah) uses a 24-hour clock. When the user creates the
// formatter for "ff-GH", it should use the same formatter data as "ff-Latn-GH"
// and it shouldn't fallback to "ff".
{hour: "2-digit", minute: "2-digit", timeZone: "UTC"},
// Include "timeZoneName" to catch script differences, e.g traditional or
// simplified Chinese characters.
{timeZoneName: "long", timeZone: "America/Los_Angeles"},
];
// Pick a date after 12 pm to catch any hour cycle differences.
const date = Date.UTC(2021, 6-1, 7, 15, 0);
available.map(x => {
return new Intl.Locale(x);
}).filter(loc => {
// Find all locales which have both a script and a region subtag.
return loc.script && loc.region;
}).filter(loc => {
// Skip "sd-Deva-IN" and Fulah because of <https://unicode-org.atlassian.net/browse/ICU-21974>.
return !((loc.language === "sd" && loc.script === "Deva" && loc.region === "IN") ||
(loc.language === "ff" && (loc.script === "Adlm" || loc.script === "Latn") &&
(loc.region === "GH" || loc.region === "GM" || loc.region === "LR" || loc.region === "SL"))
);
}).forEach(loc => {
// Remove the script subtag from the locale.
let noScript = new Intl.Locale(`${loc.language}-${loc.region}`);
// Add the likely script subtag.
let maximized = noScript.maximize();
for (let opt of options) {
// Formatter for the locale without a script subtag.
let df1 = new Intl.DateTimeFormat(noScript, opt);
// Formatter for the locale with the likely script subtag added.
let df2 = new Intl.DateTimeFormat(maximized, opt);
// The output for the locale without a script subtag should match the output
// with the likely script subtag added.
assertEq(df1.format(date), df2.format(date), `Mismatch for locale "${noScript}" (${maximized})`);
}
});
if (typeof reportCompare === "function")
reportCompare(0, 0, "ok");
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