v8/test/intl/collator/default-locale.js
Timothy Gu 6989b3f6d7 [intl] Fix default Intl language tag handling
With certain ICU data bundles (such as the Node.js "small-icu"),
%GetDefaultICULocale() may return a more specific language tag (e.g.
"en-US") than what's available (e.g. "en"). In those cases, consider the
more specific language tag supported.

This CL also resolves the following Node.js issue:
   https://github.com/nodejs/node/issues/15223

Bug: v8:7024
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Ifda0776b3418734d5caa8af4e50c17cda95add73
Reviewed-on: https://chromium-review.googlesource.com/668350
Commit-Queue: Daniel Ehrenberg <littledan@chromium.org>
Reviewed-by: Daniel Ehrenberg <littledan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52716}
2018-04-21 13:16:20 +00:00

56 lines
2.6 KiB
JavaScript

// Copyright 2013 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Constructing Collator with no locale arguments or with []
// creates one with default locale.
var collator = new Intl.Collator([]);
var options = collator.resolvedOptions();
// Check it's none of these first.
assertFalse(options.locale === 'und');
assertFalse(options.locale === '');
assertFalse(options.locale === undefined);
// Then check for legitimacy.
assertLanguageTag(%GetDefaultICULocale(), options.locale);
var collatorNone = new Intl.Collator();
assertEquals(options.locale, collatorNone.resolvedOptions().locale);
// TODO(cira): remove support for {} to mean empty list.
var collatorBraket = new Intl.Collator({});
assertEquals(options.locale, collatorBraket.resolvedOptions().locale);
var collatorWithOptions = new Intl.Collator(undefined, {usage: 'search'});
assertLanguageTag(%GetDefaultICULocale(),
collatorWithOptions.resolvedOptions().locale);
assertNotNull(
%regexp_internal_match(/-u(-[a-zA-Z]+-[a-zA-Z]+)*-co-search/,
collatorWithOptions.resolvedOptions().locale));