Files
apes-sidebar/tests/locales.spec.ts
T

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TypeScript

/**
* Locale-following spec: the sidebar copy follows the DSH locale service
* (`ctx.locale`, provided by @deepseek-ai/dsh-client-locale) when attached
* through `attachLocale`, and falls back to the browser language otherwise.
* Covers attach/detach, live switching, dictionary parity, and placeholder
* interpolation.
*/
import { afterEach, describe, expect, it } from 'vitest'
import { LOCALE_NS, attachLocale, en, isZh, relativeTime, t, zh } from '../src/client/locales.ts'
/** Minimal structural fake of the DSH LocaleService face the sidebar uses. */
class FakeLocale {
active: string = 'en'
getSnapshot(): { active: string } {
return { active: this.active }
}
subscribe(_fn: () => void): () => void {
return () => {}
}
register(_ns: string, _locale: string, _dict: Record<string, string>): () => void {
return () => {}
}
switchTo(id: string): void {
this.active = id
}
}
/** Point the browser-language fallback at a specific language (undefined = none). */
function stubNavigatorLanguage(lang: string | undefined): void {
Object.defineProperty(globalThis, 'navigator', {
value: lang === undefined ? undefined : { language: lang },
configurable: true,
})
}
afterEach(() => {
attachLocale(undefined)
stubNavigatorLanguage(undefined)
})
describe('locales (DSH i18n following)', () => {
it('falls back to the browser language without an attached service', () => {
stubNavigatorLanguage('en-US')
expect(t('explorer')).toBe('Explorer')
expect(isZh()).toBe(false)
stubNavigatorLanguage('zh-CN')
expect(t('explorer')).toBe('资源管理器')
expect(isZh()).toBe(true)
})
it('defaults to English when no locale service and no browser language are available', () => {
expect(t('explorer')).toBe('Explorer')
expect(isZh()).toBe(false)
})
it('follows the attached locale service instead of the browser language', () => {
stubNavigatorLanguage('en-US')
const locale = new FakeLocale()
attachLocale(locale)
locale.switchTo('zh')
expect(t('git')).toBe('源代码管理')
expect(isZh()).toBe(true)
// Live switch: the service's active locale wins even though the
// browser still asks for en-US.
locale.switchTo('en')
expect(t('git')).toBe('Source Control')
expect(isZh()).toBe(false)
})
it('detaches back to the browser-language fallback', () => {
const locale = new FakeLocale()
locale.switchTo('zh')
attachLocale(locale)
expect(t('terminal')).toBe('终端')
stubNavigatorLanguage('en-US')
attachLocale(undefined)
expect(t('terminal')).toBe('Terminal')
})
it('interpolates {name} placeholders in the active locale', () => {
const locale = new FakeLocale()
attachLocale(locale)
locale.switchTo('zh')
expect(t('timeMinutesAgo', { n: 5 })).toBe('5 分钟前')
locale.switchTo('en')
expect(t('timeMinutesAgo', { n: 5 })).toBe('5 min ago')
})
it('drives the relative-time chain through the active locale', () => {
const locale = new FakeLocale()
attachLocale(locale)
locale.switchTo('zh')
expect(relativeTime(new Date().toISOString())).toBe('刚刚')
locale.switchTo('en')
expect(relativeTime(new Date().toISOString())).toBe('just now')
})
it('registers a namespace distinct from DSH ui-sidebar\'s own \'sidebar\'', () => {
expect(LOCALE_NS).toBe('betterSidebar')
})
it('keeps the zh and en dictionaries key-set-equal', () => {
expect(Object.keys(en).sort()).toEqual(Object.keys(zh).sort())
})
})