test262/test/intl402/supportedLocalesOf-locales-...

32 lines
1.4 KiB
JavaScript

// Copyright 2012 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 9.2.1_4
description: >
Tests that non-objects are converted to objects before
canonicalization.
author: Norbert Lindenberg
includes: [testIntl.js]
---*/
testWithIntlConstructors(function (Constructor) {
// undefined is handled separately
// null should result in a TypeError
assert.throws(TypeError, function() {
var supportedForNull = Constructor.supportedLocalesOf(null);
}, "Null as locale list was not rejected.");
// let's use an empty list for comparison
var supportedForEmptyList = Constructor.supportedLocalesOf([]);
// we don't compare the elements because length should be 0 - let's just verify that
assert.sameValue(supportedForEmptyList.length, 0, "Internal test error: Assumption about length being 0 is invalid.");
// most non-objects will be interpreted as empty lists because a missing length property is interpreted as 0
var supportedForNumber = Constructor.supportedLocalesOf(5);
assert.sameValue(supportedForNumber.length, supportedForEmptyList.length, "Supported locales differ between numeric and empty list input.");
var supportedForBoolean = Constructor.supportedLocalesOf(true);
assert.sameValue(supportedForBoolean.length, supportedForEmptyList.length, "Supported locales differ between boolean and empty list input.");
});