v8/test/intl/date-format/property-override-date-time-style.js
Frank Tang 930143666c [Intl] Implement intl-datetime-style
See https://github.com/tc39/proposal-intl-datetime-style
Design Doc: https://goo.gl/v7n7zV


Bug: v8:8702
Change-Id: If45a901e369003ded6c0c690a65f0429800d5ecc
Reviewed-on: https://chromium-review.googlesource.com/c/1417372
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59264}
2019-02-01 03:10:04 +00:00

60 lines
1.4 KiB
JavaScript

// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --harmony-intl-datetime-style
// Checks for security holes introduced by Object.property overrides.
// For example:
// Object.defineProperty(Array.prototype, 'locale', {
// set: function(value) {
// throw new Error('blah');
// },
// configurable: true,
// enumerable: false
// });
//
// would throw in case of (JS) x.locale = 'us' or (C++) x->Set('locale', 'us').
// First get supported properties.
// Some of the properties are optional, so we request them.
var properties = [];
var options = Intl.DateTimeFormat(
'en-US', {dateStyle: 'full', timeStyle: 'full'}).resolvedOptions();
for (var prop in options) {
if (options.hasOwnProperty(prop)) {
properties.push(prop);
}
}
// In the order of Table 6 of
// ecma402 #sec-intl.datetimeformat.prototype.resolvedoptions
var expectedProperties = [
'locale',
'calendar',
'numberingSystem',
'timeZone',
'hourCycle',
'hour12',
'weekday',
'year',
'month',
'day',
'hour',
'minute',
'second',
'timeZoneName',
'dateStyle',
'timeStyle',
];
assertEquals(expectedProperties.length, properties.length);
properties.forEach(function(prop) {
assertFalse(expectedProperties.indexOf(prop) === -1);
});
taintProperties(properties);
var locale = Intl.DateTimeFormat().resolvedOptions().locale;