17 lines
663 B
TypeScript
17 lines
663 B
TypeScript
import { describe, expect, test } from "vitest";
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import { getLocaleFromAcceptLanguage } from "~/server/lib/accept-language";
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describe("getLocaleFromAcceptLanguage", () => {
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test("strips quality values from the preferred language", () => {
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expect(getLocaleFromAcceptLanguage("en;q=0.5")).toBe("en");
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});
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test("skips invalid language tags and uses the next valid one", () => {
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expect(getLocaleFromAcceptLanguage("*, en-GB;q=0.8")).toBe("en-GB");
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});
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test("falls back to en-US when no valid language is present", () => {
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expect(getLocaleFromAcceptLanguage(";;;, ???")).toBe("en-US");
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expect(getLocaleFromAcceptLanguage(null)).toBe("en-US");
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});
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});
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