| // Copyright 2018 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. |
| |
| const d = new Date(2018, 5, 21); // 2018-06-21 |
| |
| function checkFormat(locale, options, expected) { |
| let df = new Intl.DateTimeFormat(locale, options); |
| let resolvedOptions = df.resolvedOptions(); |
| assertEquals(expected.cal, resolvedOptions.calendar); |
| assertEquals(expected.numSys, resolvedOptions.numberingSystem); |
| |
| let formattedParts = df.formatToParts(d); |
| let formattedReconstructedFromParts = formattedParts.map((part) => part.value) |
| .reduce((accumulated, part) => accumulated + part); |
| let formatted = df.format(d); |
| |
| assertEquals(formatted, formattedReconstructedFromParts); |
| assertEquals(expected.types, formattedParts.map((part) => part.type)); |
| assertEquals(expected.formatted, formatted); |
| } |
| |
| // Even though the calendar is Chinese, the best pattern search for formatting |
| // should be done in the base locale (i.e. en or en-GB instead of |
| // en-u-ca-chinese or en-GB-u-ca-chinese). Otherwise, {year: 'numeric'} would |
| // results in '35 (wu-su)' where 'wu-su' is the designation for year 35 in the |
| // 60-year cycle. See https://github.com/tc39/ecma402/issues/225 . |
| [ |
| ["en", "gregory", "latn", "2018"], |
| ["en-GB", "gregory", "latn", "2018"], |
| ["en-u-ca-chinese", "chinese", "latn", "35"], |
| ["en-GB-u-ca-chinese", "chinese", "latn", "35"], |
| ["en-u-ca-chinese-nu-deva", "chinese", "deva", "३५"], |
| ["en-GB-u-ca-chinese-nu-deva", "chinese", "deva", "३५"], |
| ].forEach(function(entry) { |
| checkFormat(entry[0], {year: 'numeric'}, |
| { cal: entry[1], |
| numSys: entry[2], |
| formatted: entry[3], |
| types: ["year"], |
| }); |
| }); |
| |
| const enUSTypes = ["month", "literal", "day", "literal", "year"]; |
| const enGBTypes = ["day", "literal", "month", "literal", "year"]; |
| |
| [ |
| ["en", "gregory", "latn", "6/21/2018", enUSTypes], |
| ["en-GB", "gregory", "latn", "21/06/2018", enGBTypes], |
| ["en-u-nu-deva", "gregory", "deva", "६/२१/२०१८", enUSTypes], |
| ["en-u-ca-chinese", "chinese", "latn", "5/8/35", enUSTypes], |
| ["en-GB-u-ca-chinese", "chinese", "latn", "08/05/35", enGBTypes], |
| ["en-u-ca-chinese-nu-deva", "chinese", "deva", "५/८/३५", enUSTypes], |
| ].forEach(function(entry) { |
| checkFormat(entry[0], {}, |
| { cal: entry[1], |
| numSys: entry[2], |
| formatted: entry[3], |
| types: entry[4], |
| }); |
| }); |