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// |reftest| skip-if(!Intl.hasOwnProperty('DurationFormat')) -- Intl.DurationFormat is not enabled unconditionally
// Copyright 2022 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-Intl.DurationFormat
description: Checks cases for the locales argument to the DurationFormat constructor.
info: |
Intl.DurationFormat ( [ locales [ , options ] ] )
(...)
3. Let _requestedLocales_ be ? CanonicalizeLocaleList(_locales_).
features: [Intl.DurationFormat]
---*/
const defaultLocale = new Intl.DurationFormat().resolvedOptions().locale;
const matchers = ["lookup", "best fit"]
const tests = [
[undefined, defaultLocale, "undefined"],
["EN", "en", "Single value"],
[[], defaultLocale, "Empty array"],
[["en", "EN"], "en", "Duplicate value (canonical first)"],
[["EN", "en"], "en", "Duplicate value (canonical last)"],
[{ 0: "DE", length: 0 }, defaultLocale, "Object with zero length"],
[{ 0: "DE", length: 1 }, "de", "Object with length"],
];
for (const [locales, expected, name] of tests) {
matchers.forEach((matcher)=>{
const drf = new Intl.DurationFormat(locales, {localeMatcher: matcher});
assert.sameValue(drf.resolvedOptions().locale, expected, name);
});
};
reportCompare(0, 0);