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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.calendar.prototype.mergefields
description: Either argument being an empty object should result in a copy of the other object
includes: [compareArray.js]
features: [Temporal]
---*/
const calendar = new Temporal.Calendar("iso8601");
let calls = 0;
const yearObserver = {
get year() {
calls++;
return 2021;
}
};
const result1 = calendar.mergeFields(yearObserver, {});
assert.sameValue(calls, 1, "property copied");
assert.compareArray(Object.keys(result1), ["year"]);
assert.sameValue(result1.year, 2021);
assert.sameValue(calls, 1, "result has a data property");
calls = 0;
const result2 = calendar.mergeFields({}, yearObserver);
assert.sameValue(calls, 1, "property copied");
assert.compareArray(Object.keys(result2), ["year"]);
assert.sameValue(result2.year, 2021);
assert.sameValue(calls, 1, "result has a data property");
reportCompare(0, 0);
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