v8/test/intl/regress-10438.js
Frank Tang c75296f62b [intl] Change the r/w order of fractionalSecondDigits
1. read and output into option after timeZoneName
2. Not output into resolvedOptions if dateStyle or timeStyle is presented.
3. Add unit test

Spec: https://github.com/tc39/ecma402/pull/347

Bug: v8:10438
Change-Id: Ie7fecdb5b6dc83dc9a6dfd8ced26679a4051c833
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2161509
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67344}
2020-04-23 17:09:12 +00:00

52 lines
1.6 KiB
JavaScript

// Copyright 2020 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_dateformat_fractional_second_digits
assertEquals(
0,
(new Intl.DateTimeFormat("en", {fractionalSecondDigits: 0}))
.resolvedOptions().fractionalSecondDigits);
assertEquals(
1,
(new Intl.DateTimeFormat("en", {fractionalSecondDigits: 1}))
.resolvedOptions().fractionalSecondDigits);
assertEquals(
2,
(new Intl.DateTimeFormat("en", {fractionalSecondDigits: 2}))
.resolvedOptions().fractionalSecondDigits);
assertEquals(
3,
(new Intl.DateTimeFormat("en", {fractionalSecondDigits: 3}))
.resolvedOptions().fractionalSecondDigits);
// When timeStyle and dateStyle is not present, GetNumberOption will fallback
// to 0 as default regardless fractionalSecondDigits is present in the option or
// not.
assertEquals(
0,
(new Intl.DateTimeFormat()).resolvedOptions().fractionalSecondDigits);
assertEquals(
0,
(new Intl.DateTimeFormat("en", {fractionalSecondDigits: undefined}))
.resolvedOptions().fractionalSecondDigits);
// When timeStyle or dateStyle is present, the code should not read
// fractionalSecondDigits from the option.
assertEquals(
undefined,
(new Intl.DateTimeFormat(
"en", {timeStyle: "short", fractionalSecondDigits: 3}))
.resolvedOptions().fractionalSecondDigits);
assertEquals(
undefined,
(new Intl.DateTimeFormat(
"en", {dateStyle: "short", fractionalSecondDigits: 3}))
.resolvedOptions().fractionalSecondDigits);