| // Copyright 2019 Googe Inc. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-initializedatetimeformat |
| description: Checks the order of getting options of 'fractionalSecondDigits' for the DateTimeFormat constructor. |
| info: | |
| ToDateTimeOptions ( options, required, defaults ) |
| 5. If required is "time" or "any", then |
| a. For each of the property names "hour", "minute", "second", "fractionalSecondDigits", do |
| |
| InitializeDateTimeFormat ( dateTimeFormat, locales, options ) |
| 2. Let options be ? ToDateTimeOptions(options, "any", "date"). |
| 4. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit"). |
| 22. For each row of Table 5, except the header row, do |
| a. Let value be ? GetOption(options, prop, "string", « the strings given in the Values column of the row », undefined). |
| 23. Let _opt_.[[FractionalSecondDigits]] be ? GetNumberOption(_options_, `"fractionalSecondDigits"`, 0, 3, 0). |
| 26. Let matcher be ? GetOption(options, "formatMatcher", "string", « "basic", "best fit" », "best fit"). |
| includes: [compareArray.js] |
| features: [Intl.DateTimeFormat-fractionalSecondDigits] |
| ---*/ |
| |
| // Just need to ensure fractionalSecondDigits are get |
| // between second and localeMatcher the first time and |
| // between timeZoneName and formatMatcher the second time. |
| const expected = [ |
| // InitializeDateTimeFormat step 2. |
| // ToDateTimeOptions step 5. |
| "second", "fractionalSecondDigits", |
| // InitializeDateTimeFormat step 4. |
| "localeMatcher", |
| // InitializeDateTimeFormat step 22. |
| "second", |
| "timeZoneName", |
| // InitializeDateTimeFormat step 23. |
| "fractionalSecondDigits", |
| // InitializeDateTimeFormat step 26. |
| "formatMatcher", |
| ]; |
| |
| const actual = []; |
| |
| const options = { |
| get second() { |
| actual.push("second"); |
| return "numeric"; |
| }, |
| get fractionalSecondDigits() { |
| actual.push("fractionalSecondDigits"); |
| return undefined; |
| }, |
| get localeMatcher() { |
| actual.push("localeMatcher"); |
| return undefined; |
| }, |
| get timeZoneName() { |
| actual.push("timeZoneName"); |
| return undefined; |
| }, |
| get formatMatcher() { |
| actual.push("formatMatcher"); |
| return undefined; |
| }, |
| }; |
| |
| new Intl.DateTimeFormat("en", options); |
| assert.compareArray(actual, expected); |