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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: 9.2.1_2
description: >
Tests that the behavior of a List is not affected by adversarial
changes to Array.prototype.
author: Norbert Lindenberg
includes: [testIntl.js]
---*/
taintArray();
testWithIntlConstructors(function (Constructor) {
var defaultLocale = new Constructor().resolvedOptions().locale;
var canonicalized = Constructor.supportedLocalesOf([defaultLocale, defaultLocale]);
assert.sameValue(canonicalized.length > 1, false, "Canonicalization didn't remove duplicate language tags from locale list.");
});