timezone-not-canonicalized.js

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// Copyright (C) 2023 Justin Grant. All rights reserved.

// This code is governed by the BSD license found in the LICENSE file.

/*---

esid: sec-initializedatetimeformat

description: Time zone identifiers are not canonicalized before storing in internal slots

---*/

const baseOptions = {

  timeZoneName: "long",

  year: "numeric",

  month: "long",

  day: "numeric",

  hour: "numeric",

  minute: "numeric"

};

const dtf1 = new Intl.DateTimeFormat("en", { ...baseOptions, timeZone: "Asia/Calcutta" });

const dtf2 = new Intl.DateTimeFormat("en", { ...baseOptions, timeZone: "Asia/Kolkata" });

const resolvedId1 = dtf1.resolvedOptions().timeZone;

const resolvedId2 = dtf2.resolvedOptions().timeZone;

const output1 = dtf1.format(0);

const output2 = dtf2.format(0);

assert.sameValue(output1, output2);

assert.sameValue(resolvedId1, "Asia/Calcutta");

assert.sameValue(resolvedId2, "Asia/Kolkata");

reportCompare(0, 0);