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LibJS: Implement Intl.getCanonicalLocales

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Timothy Flynn 2021-08-25 09:41:25 -04:00 • committed by Linus Groh
parent e8dd2eea74
commit 38d29a40dc
4 changed files with 103 additions and 0 deletions
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76
Userland/Libraries/LibJS/Tests/builtins/Intl/Intl.getCanonicalLocales.js Normal file
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describe("errors", () => {
test("invalid tag", () => {
expect(() => {
Intl.getCanonicalLocales("EN_US");
}).toThrowWithMessage(RangeError, "EN_US is not a structurally valid language tag");
});
test("root tag", () => {
expect(() => {
Intl.getCanonicalLocales("root");
}).toThrowWithMessage(RangeError, "root is not a structurally valid language tag");
});
test("no language tag", () => {
expect(() => {
Intl.getCanonicalLocales("Latn");
}).toThrowWithMessage(RangeError, "Latn is not a structurally valid language tag");
});
test("duplicate variant subtags", () => {
expect(() => {
Intl.getCanonicalLocales("en-POSIX-POSIX");
}).toThrowWithMessage(
RangeError,
"en-POSIX-POSIX is not a structurally valid language tag"
);
});
test("improperly placed separator", () => {
expect(() => {
Intl.getCanonicalLocales("en-");
}).toThrowWithMessage(RangeError, "en- is not a structurally valid language tag");
expect(() => {
Intl.getCanonicalLocales("-en");
}).toThrowWithMessage(RangeError, "-en is not a structurally valid language tag");
expect(() => {
Intl.getCanonicalLocales("en--US");
}).toThrowWithMessage(RangeError, "en--US is not a structurally valid language tag");
});
test("non string or object locale", () => {
expect(() => {
Intl.getCanonicalLocales([true]);
}).toThrowWithMessage(TypeError, "true is neither an object nor a string");
});
});
describe("normal behavior", () => {
test("length is 1", () => {
expect(Intl.getCanonicalLocales).toHaveLength(1);
});
test("valid locales", () => {
expect(Intl.getCanonicalLocales([])).toEqual([]);
expect(Intl.getCanonicalLocales("EN-US")).toEqual(["en-US"]);
expect(Intl.getCanonicalLocales(["EN-US"])).toEqual(["en-US"]);
expect(Intl.getCanonicalLocales(["EN-US", "Fr"])).toEqual(["en-US", "fr"]);
expect(Intl.getCanonicalLocales("EN-lATN-US")).toEqual(["en-Latn-US"]);
expect(Intl.getCanonicalLocales("EN-US-POSIX")).toEqual(["en-US-posix"]);
expect(Intl.getCanonicalLocales("EN-LATN-US-POSIX")).toEqual(["en-Latn-US-posix"]);
});
test("duplicate locales", () => {
expect(Intl.getCanonicalLocales(["EN-US", "en-US", "en-us"])).toEqual(["en-US"]);
});
test("non-array object", () => {
expect(Intl.getCanonicalLocales({})).toEqual([]);
expect(Intl.getCanonicalLocales({ en: 123 })).toEqual([]);
expect(Intl.getCanonicalLocales(undefined)).toEqual([]);
expect(Intl.getCanonicalLocales(true)).toEqual([]);
expect(Intl.getCanonicalLocales(123)).toEqual([]);
});
});