mirror of https://github.com/tc39/test262.git
104 lines
3.1 KiB
JavaScript
104 lines
3.1 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: Fuzzy matching behaviour with UTC offsets in ISO 8601 strings with named time zones and offset option
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includes: [temporalHelpers.js]
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features: [Temporal]
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---*/
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["use", "ignore", "prefer", "reject"].forEach((offset) => {
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const result = Temporal.ZonedDateTime.from("1970-01-01T12:00-00:44:30[Africa/Monrovia]", { offset });
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assert.sameValue(result.epochNanoseconds, 45870_000_000_000n, `accepts the exact offset string (offset: ${offset})`);
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assert.sameValue(result.offset, "-00:44:30", "offset property is correct");
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});
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["use", "ignore", "prefer", "reject"].forEach((offset) => {
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const result = Temporal.ZonedDateTime.from("1970-01-01T12:00-00:44:30.000000000[Africa/Monrovia]", { offset });
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assert.sameValue(
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result.epochNanoseconds,
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45870_000_000_000n,
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`accepts trailing zeroes after ISO string offset (offset: ${offset})`
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);
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assert.sameValue(result.offset, "-00:44:30", "offset property removes trailing zeroes from input");
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});
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assert.throws(
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RangeError,
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() => Temporal.ZonedDateTime.from("1970-01-01T00:00-00:44:30[-00:45]", { offset: "reject" }),
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"minute rounding not supported for offset time zones"
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);
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const str = "1970-01-01T12:00-00:45[Africa/Monrovia]";
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["ignore", "prefer", "reject"].forEach((offset) => {
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const result = Temporal.ZonedDateTime.from(str, { offset });
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assert.sameValue(
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result.epochNanoseconds,
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45870_000_000_000n,
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`accepts the offset string rounded to minutes (offset=${offset})`
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);
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assert.sameValue(result.offset, "-00:44:30", "offset property is still the full precision");
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TemporalHelpers.assertPlainDateTime(
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result.toPlainDateTime(),
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1970,
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1,
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"M01",
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1,
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12,
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0,
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0,
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0,
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0,
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0,
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"wall time is preserved"
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);
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});
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const result = Temporal.ZonedDateTime.from(str, { offset: "use" });
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assert.sameValue(
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result.epochNanoseconds,
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45900_000_000_000n,
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"prioritizes the offset string with HH:MM precision when offset=use"
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);
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assert.sameValue(result.offset, "-00:44:30", "offset property is still the full precision");
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TemporalHelpers.assertPlainDateTime(
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result.toPlainDateTime(),
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1970,
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1,
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"M01",
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1,
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12,
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0,
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30,
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0,
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0,
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0,
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"wall time is shifted by the difference between exact and rounded offset"
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);
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const properties = { year: 1970, month: 1, day: 1, hour: 12, offset: "-00:45", timeZone: "Africa/Monrovia" };
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["ignore", "prefer"].forEach((offset) => {
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const result = Temporal.ZonedDateTime.from(properties, { offset });
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assert.sameValue(
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result.epochNanoseconds,
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45870_000_000_000n,
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`no fuzzy matching is done on offset in property bag (offset=${offset})`
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);
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});
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const result2 = Temporal.ZonedDateTime.from(properties, { offset: "use" });
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assert.sameValue(
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result2.epochNanoseconds,
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45900_000_000_000n,
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"no fuzzy matching is done on offset in property bag (offset=use)"
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);
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assert.throws(
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RangeError,
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() => Temporal.ZonedDateTime.from(properties, { offset: "reject" }),
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"no fuzzy matching is done on offset in property bag (offset=reject)"
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);
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