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translation.test.ts
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translation.test.ts
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import type { NextcloudWindowWithRegistry } from '../lib/registry'
import {
getPlural,
register,
translate,
translatePlural,
unregister,
} from '../lib/translation'
declare const window: NextcloudWindowWithRegistry
const setLocale = (locale: string) => document.documentElement.setAttribute('data-locale', locale)
const setLanguage = (lang: string) => document.documentElement.setAttribute('lang', lang)
describe('translate', () => {
const mockWindowDE = () => {
window._oc_l10n_registry_translations = {
core: {
'Hello world!': 'Hallo Welt!',
'Hello {name}': 'Hallo {name}',
'_download %n file_::_download %n files_': [
'Lade %n Datei herunter',
'Lade %n Dateien herunter',
],
'_download %n file from {url}_::_download %n files from {url}_': [
'Lade %n Datei von {url} herunter',
'Lade %n Dateien von {url} herunter',
],
},
}
window._oc_l10n_registry_plural_functions = {
core: (t) => t === 1 ? 0 : 1,
}
setLocale('de')
}
beforeAll(mockWindowDE)
it('without placeholder HTML escaping', () => {
const text = 'Hello {name}'
const translation = translate('core', text, { name: '<del>Name</del>' }, undefined, { escape: false })
expect(translation).toBe('Hallo <del>Name</del>')
})
it('with placeholder HTML escaping', () => {
const text = 'Hello {name}'
const translation = translate('core', text, { name: '<del>Name</del>' })
expect(translation).toBe('Hallo <del>Name</del>')
})
it('without placeholder XSS sanitizing', () => {
const text = 'Hello {name}'
const translation = translate('core', text, { name: '<img src=x onerror=alert(1)//>' }, undefined, { sanitize: false, escape: false })
expect(translation).toBe('Hallo <img src=x onerror=alert(1)//>')
})
it('with placeholder XSS sanitizing', () => {
const text = 'Hello {name}'
const translation = translate('core', text, { name: '<img src=x onerror=alert(1)//>' }, undefined, { escape: false })
expect(translation).toBe('Hallo <img src="x">')
})
it('singular', () => {
const text = 'Hello world!'
const translation = translate('core', text)
expect(translation).toBe('Hallo Welt!')
})
it('singular with variable', () => {
const text = 'Hello {name}'
const translation = translate('core', text, { name: 'J. Doe' })
expect(translation).toBe('Hallo J. Doe')
})
it('singular with missing variable', () => {
const text = 'Hello {name}'
const translation = translate('core', text, {})
expect(translation).toBe('Hallo {name}')
})
it('singular with invalid variable', () => {
const text = 'Hello {name}'
// We need to disable ts here as users might use it from JS were no type checking is available
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
const translation = translate('core', text, { name: true }) // invalid as only `string` or `number` are allowed
expect(translation).toBe('Hallo {name}')
})
it('singular with missing translation', () => {
const text = 'Good bye!'
const translation = translate('core', text)
expect(translation).toBe('Good bye!')
})
it('singular with missing application', () => {
const text = 'Good bye!'
const translation = translate('unavailable', text)
expect(translation).toBe('Good bye!')
})
it('singular with plural translation', () => {
const text = '_download %n file_::_download %n files_'
const translation = translate('core', text)
expect(translation).toBe('Lade %n Datei herunter')
})
it('plural', () => {
const text = ['download %n file', 'download %n files'] as const
expect(translatePlural('core', ...text, 1)).toBe('Lade 1 Datei herunter')
expect(translatePlural('core', ...text, 2)).toBe('Lade 2 Dateien herunter')
})
it('plural with missing translation', () => {
const text = ['%n translation does not exist', '%n translations do not exist'] as const
expect(translatePlural('core', ...text, 1)).toBe('1 translation does not exist')
expect(translatePlural('core', ...text, 2)).toBe('2 translations do not exist')
})
it('plural with variable', () => {
const text = ['download %n file from {url}', 'download %n files from {url}'] as const
expect(translatePlural('core', ...text, 1, { url: 'nextcloud.com' })).toBe('Lade 1 Datei von nextcloud.com herunter')
expect(translatePlural('core', ...text, 2, { url: 'nextcloud.com' })).toBe('Lade 2 Dateien von nextcloud.com herunter')
})
it('plural with missing variable', () => {
const text = ['download %n file from {url}', 'download %n files from {url}'] as const
expect(translatePlural('core', ...text, 1)).toBe('Lade 1 Datei von {url} herunter')
expect(translatePlural('core', ...text, 2)).toBe('Lade 2 Dateien von {url} herunter')
})
})
describe('register', () => {
beforeEach(() => {
setLocale('de_DE')
window._oc_l10n_registry_translations = undefined
window._oc_l10n_registry_plural_functions = undefined
})
it('with blank registry', () => {
register('app', {
Application: 'Anwendung',
'_%n guest_::_%n guests_': ['%n Gast', '%n Gäste'],
})
expect(translate('app', 'Application')).toBe('Anwendung')
expect(translatePlural('app', '%n guest', '%n guests', 1)).toBe('1 Gast')
expect(translatePlural('app', '%n guest', '%n guests', 2)).toBe('2 Gäste')
})
it('extend registered translations', () => {
window._oc_l10n_registry_translations = {
app: {
Application: 'Anwendung',
},
}
window._oc_l10n_registry_plural_functions = {
app: (t) => t === 1 ? 0 : 1,
}
register('app', {
Translation: 'Übersetzung',
})
expect(translate('app', 'Application')).toBe('Anwendung')
expect(translate('app', 'Translation')).toBe('Übersetzung')
})
it('extend with another new app', () => {
window._oc_l10n_registry_translations = {
core: {
'Hello world!': 'Hallo Welt!',
},
}
window._oc_l10n_registry_plural_functions = {
core: (t) => t === 1 ? 0 : 1,
}
register('app', {
Application: 'Anwendung',
})
expect(translate('core', 'Hello world!')).toBe('Hallo Welt!')
expect(translate('app', 'Application')).toBe('Anwendung')
})
it('unregister', () => {
window._oc_l10n_registry_translations = {}
window._oc_l10n_registry_plural_functions = {}
register('app', {
Application: 'Anwendung',
})
unregister('app')
expect(translate('app', 'Application')).toBe('Application')
})
})
describe('getPlural', () => {
it('can handle brazillian Portuguese', () => {
// special because brazillian Portuguese use sigular for 0 and 1 wheras Portuguese use plural for 0
setLanguage('pt-BR')
expect(getPlural(0)).toBe(0)
expect(getPlural(2)).toBe(1) // ensure no fallback to `default`
})
it('can handle language designators with regions', () => {
setLanguage('de-CH')
// default for unknown is 0 for all input so we can assume it works if we get 1
expect(getPlural(0)).toBe(1)
})
it('has a fallback', () => {
setLanguage('xxx')
expect(getPlural(0)).toBe<number>(0)
expect(getPlural(1)).toBe<number>(0)
})
})