js/src/tests/test262/built-ins/Temporal/ZonedDateTime/prototype/with/options-undefined.js


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// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
// Copyright (C) 2021 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-temporal.zoneddatetime.prototype.with
description: Verify that undefined options are handled correctly.
features: [BigInt, Temporal]
---*/

const datetime = new Temporal.ZonedDateTime(949494896_987_654_321n, "UTC");
const fields = { day: 31 };

const explicit = datetime.with(fields, undefined);
assert.sameValue(explicit.month, 2, "default overflow is constrain");
assert.sameValue(explicit.day, 29, "default overflow is constrain");

const implicit = datetime.with(fields);
assert.sameValue(implicit.month, 2, "default overflow is constrain");
assert.sameValue(implicit.day, 29, "default overflow is constrain");

reportCompare(0, 0);