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// Copyright (C) 2021 André Bargull. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-intl.supportedvaluesof
description: >
The returned "collation" values can be used with Collator.
info: |
Intl.supportedValuesOf ( key )
1. Let key be ? ToString(key).
...
3. Else if key is "collation", then
a. Let list be ! AvailableCollations( ).
...
9. Return ! CreateArrayFromList( list ).
AvailableCollations ( )
The AvailableCollations abstract operation returns a List, ordered as if an
Array of the same values had been sorted using %Array.prototype.sort% using
undefined as comparefn, that contains unique collation types identifying the
collations for which the implementation provides the functionality of
Intl.Collator objects.
includes: [testIntl.js]
locale: [en, ar, de, es, ko, ln, si, sv, zh]
features: [Intl-enumeration, Array.prototype.includes]
---*/
const collations = Intl.supportedValuesOf("collation");
// Not all locales support all possible collations, so test the minimal set to
// cover all supported collations.
//
// The list of all collations can be derived from
//
// Note: "standard" and "search" are explicitly disallowed by Intl.Collator.
const locales = [
"en", // ducet, emoji, eor
"ar", // compat
"de", // phonebk
"es", // trad
"hi", // direct
"ko", // searchjl
"ln", // phonetic
"si", // dict
"sv", // reformed
"zh", // big5han, gb2312, pinyin, stroke, unihan, zhuyin
];
for (let collation of collations) {
let supported = false;
for (let locale of locales) {
let obj = new Intl.Collator(locale, {collation});
if (obj.resolvedOptions().collation === collation) {
supported = true;
break;
}
}
assert(supported, `${collation} is supported by Collator`);
}
for (let collation of allCollations()) {
let supported = false;
for (let locale of locales) {
let obj = new Intl.Collator(locale, {collation});
if (obj.resolvedOptions().collation === collation) {
supported = true;
break;
}
}
if (supported) {
assert(collations.includes(collation),
`${collation} supported but not returned by supportedValuesOf`);
} else {
assert(!collations.includes(collation),
`${collation} not supported but returned by supportedValuesOf`);
}
}
reportCompare(0, 0);