michael@0: // Copyright 2011-2012 Norbert Lindenberg. All rights reserved.
michael@0: // Copyright 2012 Mozilla Corporation. All rights reserved.
michael@0: // This code is governed by the BSD license found in the LICENSE file.
michael@0: 
michael@0: /**
michael@0:  * @description Tests that Intl.DateTimeFormat can be subclassed.
michael@0:  * @author Norbert Lindenberg
michael@0:  */
michael@0: 
michael@0: $INCLUDE("testIntl.js");
michael@0: 
michael@0: // get a date-time format and have it format an array of dates for comparison with the subclass
michael@0: var locales = ["tlh", "id", "en"];
michael@0: var a = [new Date(0), Date.now(), new Date(Date.parse("1989-11-09T17:57:00Z"))];
michael@0: var referenceDateTimeFormat = new Intl.DateTimeFormat(locales);
michael@0: var referenceFormatted = a.map(referenceDateTimeFormat.format);
michael@0: 
michael@0: function MyDateTimeFormat(locales, options) {
michael@0:     Intl.DateTimeFormat.call(this, locales, options);
michael@0:     // could initialize MyDateTimeFormat properties
michael@0: }
michael@0: 
michael@0: MyDateTimeFormat.prototype = Object.create(Intl.DateTimeFormat.prototype);
michael@0: MyDateTimeFormat.prototype.constructor = MyDateTimeFormat;
michael@0: // could add methods to MyDateTimeFormat.prototype
michael@0: 
michael@0: var format = new MyDateTimeFormat(locales);
michael@0: var actual = a.map(format.format);
michael@0: testArraysAreSame(referenceFormatted, actual);
michael@0: