126 lines
4.8 KiB
JavaScript
126 lines
4.8 KiB
JavaScript
describe("errors", () => {
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test("invalid tag", () => {
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expect(() => {
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Intl.getCanonicalLocales("EN_US");
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}).toThrowWithMessage(RangeError, "EN_US is not a structurally valid language tag");
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});
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test("root tag", () => {
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expect(() => {
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Intl.getCanonicalLocales("root");
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}).toThrowWithMessage(RangeError, "root is not a structurally valid language tag");
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});
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test("no language tag", () => {
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expect(() => {
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Intl.getCanonicalLocales("Latn");
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}).toThrowWithMessage(RangeError, "Latn is not a structurally valid language tag");
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});
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test("duplicate variant subtags", () => {
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expect(() => {
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Intl.getCanonicalLocales("en-posix-POSIX");
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}).toThrowWithMessage(
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RangeError,
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"en-posix-POSIX is not a structurally valid language tag"
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);
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expect(() => {
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Intl.getCanonicalLocales("en-POSIX-POSIX");
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}).toThrowWithMessage(
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RangeError,
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"en-POSIX-POSIX is not a structurally valid language tag"
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);
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});
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test("improperly placed separator", () => {
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expect(() => {
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Intl.getCanonicalLocales("en-");
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}).toThrowWithMessage(RangeError, "en- is not a structurally valid language tag");
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expect(() => {
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Intl.getCanonicalLocales("-en");
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}).toThrowWithMessage(RangeError, "-en is not a structurally valid language tag");
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expect(() => {
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Intl.getCanonicalLocales("en--US");
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}).toThrowWithMessage(RangeError, "en--US is not a structurally valid language tag");
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});
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test("non string or object locale", () => {
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expect(() => {
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Intl.getCanonicalLocales([true]);
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}).toThrowWithMessage(TypeError, "true is neither an object nor a string");
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});
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test("duplicate extension components", () => {
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expect(() => {
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Intl.getCanonicalLocales("en-u-aa-U-aa");
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}).toThrowWithMessage(RangeError, "en-u-aa-U-aa is not a structurally valid language tag");
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expect(() => {
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Intl.getCanonicalLocales("en-t-aa-T-aa");
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}).toThrowWithMessage(RangeError, "en-t-aa-T-aa is not a structurally valid language tag");
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expect(() => {
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Intl.getCanonicalLocales("en-z-aa-Z-aa");
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}).toThrowWithMessage(RangeError, "en-z-aa-Z-aa is not a structurally valid language tag");
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});
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test("duplicate transformed extension variant subtags", () => {
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expect(() => {
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Intl.getCanonicalLocales("en-t-en-POSIX-POSIX");
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}).toThrowWithMessage(
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RangeError,
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"en-t-en-POSIX-POSIX is not a structurally valid language tag"
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);
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});
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});
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describe("normal behavior", () => {
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test("length is 1", () => {
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expect(Intl.getCanonicalLocales).toHaveLength(1);
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});
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test("valid locales", () => {
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expect(Intl.getCanonicalLocales([])).toEqual([]);
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expect(Intl.getCanonicalLocales("EN-US")).toEqual(["en-US"]);
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expect(Intl.getCanonicalLocales(["EN-US"])).toEqual(["en-US"]);
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expect(Intl.getCanonicalLocales(["EN-US", "Fr"])).toEqual(["en-US", "fr"]);
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expect(Intl.getCanonicalLocales("EN-lATN-US")).toEqual(["en-Latn-US"]);
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expect(Intl.getCanonicalLocales("EN-US-POSIX")).toEqual(["en-US-posix"]);
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expect(Intl.getCanonicalLocales("EN-LATN-US-POSIX")).toEqual(["en-Latn-US-posix"]);
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});
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test("duplicate locales", () => {
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expect(Intl.getCanonicalLocales(["EN-US", "en-US", "en-us"])).toEqual(["en-US"]);
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});
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test("non-array object", () => {
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expect(Intl.getCanonicalLocales({})).toEqual([]);
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expect(Intl.getCanonicalLocales({ en: 123 })).toEqual([]);
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expect(Intl.getCanonicalLocales(undefined)).toEqual([]);
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expect(Intl.getCanonicalLocales(true)).toEqual([]);
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expect(Intl.getCanonicalLocales(123)).toEqual([]);
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});
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test("duplicate Unicode locale extension attributes", () => {
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expect(Intl.getCanonicalLocales("en-us-u-aaa-aaa")).toEqual(["en-US-u-aaa"]);
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expect(Intl.getCanonicalLocales("en-us-u-aaa-bbb-aaa")).toEqual(["en-US-u-aaa-bbb"]);
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});
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test("duplicate Unicode locale extension keywords", () => {
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expect(Intl.getCanonicalLocales("en-us-u-1k-aaa-1k-bbb")).toEqual(["en-US-u-1k-aaa"]);
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expect(Intl.getCanonicalLocales("en-us-u-1k-aaa-2k-ccc-1k-bbb")).toEqual([
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"en-US-u-1k-aaa-2k-ccc",
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]);
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});
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test("canonicalize locale objects", () => {
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const en = new Intl.Locale("en", { script: "Latn" });
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expect(Intl.getCanonicalLocales(en)).toEqual(["en-Latn"]);
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const es = new Intl.Locale("es", { region: "419" });
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expect(Intl.getCanonicalLocales([en, es])).toEqual(["en-Latn", "es-419"]);
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});
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});
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