921cdc457d
UX全体にテーマと言語設定を追加。 - lib/db/migrations/004_user_prefs.sql: users に theme/locale 列を追加(既定 dark/en) - lib/i18n/: dictionary(en/ja) + I18nProvider(クライアントcontext: locale/theme/t/setLocale/setTheme) + server.ts(SSR用 getLocale/getTheme/translate) + constants.ts - app/layout.tsx: theme/locale Cookie を読み <html class/lang> をSSR、I18nProvider でラップ(フラッシュなし) - tailwind darkMode:'class' + 全画面に dark: バリアントを一括付与(Nodeスクリプト lookbehind で安全に変換) - components/layout/ThemeToggle: 即時クラス切替+Cookie+永続化 - app/profile: テーマ/言語セレクタ、chrome翻訳(Header/ProjectNav/login/dashboard/profile) - PATCH /api/users/me: theme/locale を受理(バリデーション→400)、Cookieを設定 - E2E: locale=ja storageState で既存JAアサーションを維持、theme-i18n.spec で既定en/darkと切替を検証
69 lines
2.1 KiB
TypeScript
69 lines
2.1 KiB
TypeScript
import { describe, it, expect, vi, beforeEach } from 'vitest';
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vi.mock('next/headers', () => ({
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cookies: vi.fn(),
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}));
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import { cookies } from 'next/headers';
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import { getLocale, getTheme, translate } from '@/lib/i18n/server';
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const mockedCookies = vi.mocked(cookies);
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function mockCookie(value: string | undefined) {
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mockedCookies.mockResolvedValue({
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get: () => (value === undefined ? undefined : { value }),
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} as never);
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}
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function mockCookieByName(map: Record<string, string | undefined>) {
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mockedCookies.mockResolvedValue({
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get: (name: string) =>
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map[name] === undefined ? undefined : { value: map[name] },
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} as never);
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}
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describe('i18n/server', () => {
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beforeEach(() => vi.clearAllMocks());
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describe('getLocale', () => {
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it('defaults to en when the cookie is absent', async () => {
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mockCookie(undefined);
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expect(await getLocale()).toBe('en');
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});
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it('returns ja when the cookie is ja', async () => {
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mockCookieByName({ locale: 'ja' });
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expect(await getLocale()).toBe('ja');
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});
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it('falls back to en for an unknown value', async () => {
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mockCookieByName({ locale: 'fr' });
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expect(await getLocale()).toBe('en');
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});
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});
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describe('getTheme', () => {
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it('defaults to dark when the cookie is absent', async () => {
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mockCookie(undefined);
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expect(await getTheme()).toBe('dark');
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});
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it('returns light when the cookie is light', async () => {
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mockCookieByName({ theme: 'light' });
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expect(await getTheme()).toBe('light');
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});
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it('falls back to dark for an unknown value', async () => {
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mockCookieByName({ theme: 'pink' });
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expect(await getTheme()).toBe('dark');
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});
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});
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describe('translate', () => {
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it('returns the localized string for each locale', () => {
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expect(translate('nav.board', 'en')).toBe('Board');
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expect(translate('nav.board', 'ja')).toBe('掲示板');
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});
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it('falls back to the english string then the key for unknown keys', () => {
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// @ts-expect-error -- nonexistent key on purpose
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expect(translate('nonexistent.key', 'en')).toBe('nonexistent.key');
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});
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});
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});
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