test262/test/intl402/Locale/canonicalize-locale-list-ta...

54 lines
1.6 KiB
JavaScript

// Copyright 2019 Google Inc. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-intl.locale
description: >
Verifies CanonicalizeLocaleList will take Intl.Locale as locales.
info: |
CanonicalizeLocaleList ( locales )
3. If Type(locales) is String or locales has an [[InitializedLocale]] internal slot, then
a. Let O be CreateArrayFromList(« locales »).
c. iii. If Type(kValue) is Object and kValue has an [[InitializedLocale]] internal slot, then
1. Let tag be kValue.[[Locale]].
iv. Else,
1. Let tag be ? ToString(kValue).
features: [Intl.Locale]
---*/
const tag = "ar";
const tag2 = "fa";
const tag3 = "zh";
const loc = new Intl.Locale(tag);
// Monkey-patching Intl.Locale
class PatchedLocale extends Intl.Locale {
constructor(tag, options) {
super(tag, options);
}
toString() {
// this should NOT get called.
assert(false, "toString should not be called")
}
}
const ploc = new PatchedLocale(tag2);
// Test Intl.Locale as the only argument
let res = Intl.getCanonicalLocales(loc);
assert.sameValue(res.length, 1);
assert.sameValue(res[0], tag);
// Test Monkey-patched Intl.Locale as the only argument
res = Intl.getCanonicalLocales(ploc);
assert.sameValue(res.length, 1);
assert.sameValue(res[0], tag2);
// Test Intl.Locale and the Monkey-patched one are in
// array.
res = Intl.getCanonicalLocales([loc, tag3, ploc]);
assert.sameValue(res.length, 3);
assert.sameValue(res[0], tag);
assert.sameValue(res[1], tag3);
assert.sameValue(res[2], tag2);