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7d970fbe4e
It's no longer possible to fake built-in time zones using custom objects. So testing DST shifts will have to use real built-in time zones. Replace TemporalHelpers.springForwardFallBackTimeZone with America/Vancouver (it was modelled on the DST transitions in 2000) and TemporalHelpers.crossDateLineTimeZone with Pacific/Apia (it was modelled on the 2011 switch to the other side of the international date line.) These tests have to move to the intl402/ folder since non-Intl-aware implementations are allowed (but not required) to support any built-in time zones other than UTC.
43 lines
2.2 KiB
JavaScript
43 lines
2.2 KiB
JavaScript
// Copyright (C) 2021 Igalia, S.L. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-temporal.zoneddatetime.from
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description: Verify that undefined options are handled correctly.
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features: [Temporal]
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---*/
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const overflowFields = { year: 2000, month: 13, day: 2, timeZone: "UTC" };
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const overflowExplicit = Temporal.ZonedDateTime.from(overflowFields, undefined);
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assert.sameValue(overflowExplicit.month, 12, "default overflow is constrain");
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const overflowPropertyImplicit = Temporal.ZonedDateTime.from(overflowFields, {});
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assert.sameValue(overflowPropertyImplicit.month, 12, "default overflow is constrain");
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const overflowImplicit = Temporal.ZonedDateTime.from(overflowFields);
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assert.sameValue(overflowImplicit.month, 12, "default overflow is constrain");
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const timeZone = "America/Vancouver";
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const disambiguationEarlierFields = { timeZone, year: 2000, month: 10, day: 29, hour: 1, minute: 34, second: 56, millisecond: 987, microsecond: 654, nanosecond: 321 };
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const disambiguationLaterFields = { timeZone, year: 2000, month: 4, day: 2, hour: 2, minute: 34, second: 56, millisecond: 987, microsecond: 654, nanosecond: 321 };
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[
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[disambiguationEarlierFields, 972808496987654321n],
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[disambiguationLaterFields, 954671696987654321n],
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].forEach(([fields, expected]) => {
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const explicit = Temporal.ZonedDateTime.from(fields, undefined);
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assert.sameValue(explicit.epochNanoseconds, expected, "default disambiguation is compatible");
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const propertyImplicit = Temporal.ZonedDateTime.from(fields, {});
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assert.sameValue(propertyImplicit.epochNanoseconds, expected, "default disambiguation is compatible");
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const implicit = Temporal.ZonedDateTime.from(fields);
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assert.sameValue(implicit.epochNanoseconds, expected, "default disambiguation is compatible");
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});
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const offsetFields = { year: 2000, month: 5, day: 2, offset: "+23:59", timeZone: "UTC" };
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assert.throws(RangeError, () => Temporal.ZonedDateTime.from(offsetFields, undefined), "default offset is reject");
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assert.throws(RangeError, () => Temporal.ZonedDateTime.from(offsetFields, {}), "default offset is reject");
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assert.throws(RangeError, () => Temporal.ZonedDateTime.from(offsetFields), "default offset is reject");
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