43 lines
1.5 KiB
TypeScript
43 lines
1.5 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import {
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DEFAULT_LOCALE,
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SUPPORTED_LOCALES,
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loadLazyLocaleTranslation,
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resolveNavigatorLocale,
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} from "../../ui/src/i18n/lib/registry.ts";
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import type { TranslationMap } from "../../ui/src/i18n/lib/types.ts";
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function getNestedTranslation(map: TranslationMap | null, ...path: string[]): string | undefined {
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let value: string | TranslationMap | undefined = map ?? undefined;
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for (const key of path) {
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if (value === undefined || typeof value === "string") {
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return undefined;
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}
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value = value[key];
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}
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return typeof value === "string" ? value : undefined;
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}
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describe("ui i18n locale registry", () => {
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it("lists supported locales", () => {
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expect(SUPPORTED_LOCALES).toEqual(["en", "zh-CN", "zh-TW", "pt-BR", "de"]);
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expect(DEFAULT_LOCALE).toBe("en");
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});
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it("resolves browser locale fallbacks", () => {
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expect(resolveNavigatorLocale("de-DE")).toBe("de");
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expect(resolveNavigatorLocale("pt-PT")).toBe("pt-BR");
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expect(resolveNavigatorLocale("zh-HK")).toBe("zh-TW");
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expect(resolveNavigatorLocale("en-US")).toBe("en");
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});
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it("loads lazy locale translations from the registry", async () => {
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const de = await loadLazyLocaleTranslation("de");
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const zhCN = await loadLazyLocaleTranslation("zh-CN");
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expect(getNestedTranslation(de, "common", "health")).toBe("Status");
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expect(getNestedTranslation(zhCN, "common", "health")).toBe("健康状况");
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expect(await loadLazyLocaleTranslation("en")).toBeNull();
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});
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});
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