js/src/tests/test262/built-ins/Temporal/PlainMonthDay/prototype/with/copy-properties-not-undefined.js


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// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
// Copyright (C) 2022 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-temporal.plainmonthday.prototype.with
description: PreparePartialTemporalFields copies only defined properties of source object
info: |
  4. For each value _property_ of _fieldNames_, do
    a. Let _value_ be ? Get(_fields_, _property_).
    b. If _value_ is not *undefined*, then
        ...
        iii. Perform ! CreateDataPropertyOrThrow(_result_, _property_, _value_).
includes: [temporalHelpers.js]
features: [Temporal]
---*/

const plainMonthDay = new Temporal.PlainMonthDay(10, 31);

TemporalHelpers.assertPlainMonthDay(plainMonthDay.with({ day: 1, monthCode: undefined }),
  "M10", 1,
  "only the properties that are present and defined in the plain object are copied"
);

reportCompare(0, 0);