JSTests/test262/test/intl402/DateTimeFormat/constructor-options-order-dayPeriod.js

// 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 'dayPeriod' for the DateTimeFormat constructor.
info: |
    ToDateTimeOptions ( options, required, defaults )
    4. If required is "date" or "any", then
      a. For each of the property names "weekday", "year", "month", "day", "dayPeriod" do
    5. If required is "time" or "any", then
      a. For each of the property names "hour", "minute", "second", do
includes: [compareArray.js]
features: [Intl.DateTimeFormat-dayPeriod]

---*/

// Just need to ensure dayPeriod are get between day and hour.
const expected = [
  // ToDateTimeOptions step 4.
  "day", "dayPeriod",
  // ToDateTimeOptions step 5.
  "hour",
  // InitializeDateTimeFormat step 22.
  "day",
  "dayPeriod",
  "hour"
];

const actual = [];

const options = {
  get day() {
    actual.push("day");
    return "numeric";
  },
  get dayPeriod() {
    actual.push("dayPeriod");
    return "long";
  },
  get hour() {
    actual.push("hour");
    return "numeric";
  },
};

new Intl.DateTimeFormat("en", options);
assert.compareArray(actual, expected);