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LibJS+LibTimeZone: Begin handling DST when computing time zone offsets

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This also updates some expectations in a Temporal time zone offset test
that is using a time stamp which is in DST for a few time zones.
This commit is contained in:
Timothy Flynn 2022-01-19 11:17:54 -05:00 • committed by Linus Groh
parent 9dd4602636
commit 42c9c57141
3 changed files with 91 additions and 17 deletions
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10
Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.getOffsetStringFor.js
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@ -9,15 +9,15 @@ describe("correct behavior", () => {
["GMT", "+00:00"],
["Etc/GMT+12", "-12:00"],
["Etc/GMT-12", "+12:00"],
["Europe/London", "+00:00"],
["Europe/Berlin", "+01:00"],
["America/New_York", "-05:00"],
["America/Los_Angeles", "-08:00"],
["Europe/London", "+01:00"],
["Europe/Berlin", "+02:00"],
["America/New_York", "-04:00"],
["America/Los_Angeles", "-07:00"],
["+00:00", "+00:00"],
["+01:30", "+01:30"],
];
for (const [arg, expected] of values) {
const instant = new Temporal.Instant(1600000000000000000n);
const instant = new Temporal.Instant(1600000000000000000n); // Sunday, September 13, 2020 12:26:40 PM
expect(new Temporal.TimeZone(arg).getOffsetStringFor(instant)).toBe(expected);
}
});