JSTests/test262/test/intl402/Locale/prototype/minimize/removing-likely-subtags-first-adds-likely-subtags.js

// Copyright 2020 André Bargull. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-Intl.Locale.prototype.minimize
description: >
    The "Remove Likely Subtags" algorithm adds likely subtags before processing the locale.
info: |
    Intl.Locale.prototype.minimize ()
    3. Let minimal be the result of the Remove Likely Subtags algorithm applied to loc.[[Locale]].
       If an error is signaled, set minimal to loc.[[Locale]].

    UTS 35, §4.3 Likely Subtags
    Remove Likely Subtags

    1. First get max = AddLikelySubtags(inputLocale). If an error is signaled, return it.
    2. ...
features: [Intl.Locale]
---*/

var testDataMinimal = {
    // Undefined primary language.
    "und": "en",
    "und-Thai": "th",
    "und-419": "es-419",
    "und-150": "ru",
    "und-AT": "de-AT",

    // https://unicode-org.atlassian.net/browse/ICU-13786
    "aae-Latn-IT": "aae-Latn-IT",
    "aae-Thai-CO": "aae-Thai-CO",

    // https://unicode-org.atlassian.net/browse/ICU-10220
    // https://unicode-org.atlassian.net/browse/ICU-12345
    "und-CW": "pap-CW",
    "und-US": "en",
    "zh-Hant": "zh-TW",
    "zh-Hani": "zh-Hani",
};

for (const [tag, minimal] of Object.entries(testDataMinimal)) {
    // Assert the |minimal| tag is indeed minimal.
    assert.sameValue(new Intl.Locale(minimal).minimize().toString(), minimal,
                     `"${minimal}" should be minimal`);

    // Assert RemoveLikelySubtags(tag) returns |minimal|.
    assert.sameValue(new Intl.Locale(tag).minimize().toString(), minimal,
                     `"${tag}".minimize() should be "${minimal}"`);
}