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LibJS: Correctly resolve locale hour cycles in Intl.DateTimeFormat

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This is a normative change in the ECMA-402 spec. See:
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This commit is contained in:
Timothy Flynn 2023-10-04 16:48:38 -04:00 • committed by Andreas Kling
parent 39be5cb73a
commit 05e080c4ba
2 changed files with 75 additions and 50 deletions
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26
Userland/Libraries/LibJS/Tests/builtins/Intl/DateTimeFormat/DateTimeFormat.prototype.resolvedOptions.js
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@ -85,6 +85,32 @@ describe("correct behavior", () => {
});
});
test("hour12", () => {
const en1 = Intl.DateTimeFormat("en", { hour: "numeric" });
expect(en1.resolvedOptions().hourCycle).toBe("h12");
expect(en1.resolvedOptions().hour12).toBeTrue();
const en2 = Intl.DateTimeFormat("en", { hour: "numeric", hour12: true });
expect(en2.resolvedOptions().hourCycle).toBe("h12");
expect(en2.resolvedOptions().hour12).toBeTrue();
const en3 = Intl.DateTimeFormat("en", { hour: "numeric", hour12: false });
expect(en3.resolvedOptions().hourCycle).toBe("h23");
expect(en3.resolvedOptions().hour12).toBeFalse();
const ja1 = Intl.DateTimeFormat("ja", { hour: "numeric" });
expect(ja1.resolvedOptions().hourCycle).toBe("h23");
expect(ja1.resolvedOptions().hour12).toBeFalse();
const ja2 = Intl.DateTimeFormat("ja", { hour: "numeric", hour12: true });
expect(ja2.resolvedOptions().hourCycle).toBe("h11");
expect(ja2.resolvedOptions().hour12).toBeTrue();
const ja3 = Intl.DateTimeFormat("ja", { hour: "numeric", hour12: false });
expect(ja3.resolvedOptions().hourCycle).toBe("h23");
expect(ja3.resolvedOptions().hour12).toBeFalse();
});
test("timeZone", () => {
const en = new Intl.DateTimeFormat("en", { timeZone: "EST" });
expect(en.resolvedOptions().timeZone).toBe("EST");