test262/test/built-ins/Temporal/Now/zonedDateTimeISO/timezone-object.js

37 lines
1.1 KiB
JavaScript

// Copyright (C) 2020 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.now.zoneddatetime
description: Observable interactions with the provided timezone-like object
includes: [compareArray.js, temporalHelpers.js]
features: [BigInt, Proxy, Temporal]
---*/
const actual = [];
const expected = [
"has timeZone.getOffsetNanosecondsFor",
"has timeZone.getPossibleInstantsFor",
"has timeZone.id",
];
const timeZone = TemporalHelpers.timeZoneObserver(actual, "timeZone", {
getOffsetNanosecondsFor(instant) {
assert.sameValue(
instant instanceof Temporal.Instant,
true,
'The result of evaluating (instant instanceof Temporal.Instant) is expected to be true'
);
return -Number(instant.epochNanoseconds % 86400000000000n);
}
});
Object.defineProperty(Temporal.TimeZone, 'from', {
get() {
actual.push('get Temporal.TimeZone.from');
return undefined;
}
});
Temporal.Now.zonedDateTimeISO(timeZone);
assert.compareArray(actual, expected, 'order of observable operations');