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LibJS: Implement Intl.NumberFormat V3's [[RoundingPriority]] changes

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Timothy Flynn 2022-07-16 12:11:20 -04:00 • committed by Linus Groh
parent 9e50f25ac4
commit bb9a44cd50
3 changed files with 87 additions and 16 deletions
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44
Userland/Libraries/LibJS/Tests/builtins/Intl/NumberFormat/NumberFormat.prototype.format.js
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@ -523,6 +523,50 @@ describe("style=decimal", () => {
expect(plPl.format(123456)).toBe("123456");
expect(plPl.format(1234567)).toBe("1234567");
});
test("roundingPriority=lessPrecision", () => {
const nf = (locale, minSignificant, maxSignificant, minFraction, maxFraction) => {
return new Intl.NumberFormat(locale, {
roundingPriority: "lessPrecision",
minimumSignificantDigits: minSignificant,
maximumSignificantDigits: maxSignificant,
minimumFractionDigits: minFraction,
maximumFractionDigits: maxFraction,
});
};
expect(nf("en", 2, undefined, 2, undefined).format(1)).toBe("1.00");
expect(nf("en", 3, undefined, 1, undefined).format(1)).toBe("1.0");
expect(nf("en", undefined, 2, undefined, 2).format(1.23)).toBe("1.2");
expect(nf("en", undefined, 3, undefined, 1).format(1.23)).toBe("1.2");
expect(nf("ar", 2, undefined, 2, undefined).format(1)).toBe("\u0661\u066b\u0660\u0660");
expect(nf("ar", 3, undefined, 1, undefined).format(1)).toBe("\u0661\u066b\u0660");
expect(nf("ar", undefined, 2, undefined, 2).format(1.23)).toBe("\u0661\u066b\u0662");
expect(nf("ar", undefined, 3, undefined, 1).format(1.23)).toBe("\u0661\u066b\u0662");
});
test("roundingPriority=morePrecision", () => {
const nf = (locale, minSignificant, maxSignificant, minFraction, maxFraction) => {
return new Intl.NumberFormat(locale, {
roundingPriority: "morePrecision",
minimumSignificantDigits: minSignificant,
maximumSignificantDigits: maxSignificant,
minimumFractionDigits: minFraction,
maximumFractionDigits: maxFraction,
});
};
expect(nf("en", 2, undefined, 2, undefined).format(1)).toBe("1.0");
expect(nf("en", 3, undefined, 1, undefined).format(1)).toBe("1.00");
expect(nf("en", undefined, 2, undefined, 2).format(1.23)).toBe("1.23");
expect(nf("en", undefined, 3, undefined, 1).format(1.23)).toBe("1.23");
expect(nf("ar", 2, undefined, 2, undefined).format(1)).toBe("\u0661\u066b\u0660");
expect(nf("ar", 3, undefined, 1, undefined).format(1)).toBe("\u0661\u066b\u0660\u0660");
expect(nf("ar", undefined, 2, undefined, 2).format(1.23)).toBe("\u0661\u066b\u0662\u0663");
expect(nf("ar", undefined, 3, undefined, 1).format(1.23)).toBe("\u0661\u066b\u0662\u0663");
});
});
describe("style=percent", () => {