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// Copyright 2012 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 9.1_b
description: >
Tests that appropriate fallback locales are provided for
supported locales.
author: Norbert Lindenberg
includes: [testIntl.js]
features: [Array.prototype.includes]
---*/
testWithIntlConstructors(function (Constructor) {
// The test is only valid under "lookup" localeMatcher
var info = getLocaleSupportInfo(Constructor, {localeMatcher: "lookup"});
for (var locale of info.supported) {
var match = /^([a-z]{2,3})(-[A-Z][a-z]{3})?(-(?:[A-Z]{2}|[0-9]{3}))?$/.exec(locale);
assert.notSameValue(match, null, "Locale " + locale + " is supported, but can't be parsed.")
var [language, script, region] = match.slice(1);
if (script !== undefined) {
var fallback = language + script;
assert(info.supported.includes(fallback) || info.byFallback.includes(fallback),
"Locale " + locale + " is supported, but fallback " + fallback + " isn't.");
}
if (region !== undefined) {
var fallback = language + region;
assert(info.supported.includes(fallback) || info.byFallback.includes(fallback),
"Locale " + locale + " is supported, but fallback " + fallback + " isn't.");
}
}
});
reportCompare(0, 0);