svelte-i18n/test/client/index.test.ts

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// TODO remake this, it's a mess
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import { Formatter } from '../../src/client/types'
import {
dictionary,
locale,
format,
addCustomFormats,
customFormats,
register,
waitLocale,
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} from '../../src/client'
import { getClientLocale } from '../../src/client/includes/utils'
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global.Intl = require('intl')
let _: Formatter
let currentLocale: string
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const dict = {
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en: require('../fixtures/en.json'),
}
register('en-GB', () => import('../fixtures/en-GB.json'))
register('pt', () => import('../fixtures/pt.json'))
register('pt-BR', () => import('../fixtures/pt-BR.json'))
register('pt-PT', () => import('../fixtures/pt-PT.json'))
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format.subscribe(formatFn => {
_ = formatFn
})
dictionary.set(dict)
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locale.subscribe((l: string) => {
currentLocale = l
})
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describe('locale', () => {
it('should change locale', async () => {
await locale.set('en')
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expect(currentLocale).toBe('en')
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await locale.set('en-US')
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expect(currentLocale).toBe('en-US')
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})
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})
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describe('dictionary', () => {
it('load a partial dictionary and merge it with the existing one', async () => {
await locale.set('en')
register('en', () => import('../fixtures/partials/en.json'))
expect(_('page.title_about')).toBe('page.title_about')
await waitLocale('en')
expect(_('page.title_about')).toBe('About')
})
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})
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describe('formatting', () => {
it('should translate to current locale', async () => {
await locale.set('en')
expect(_('switch.lang')).toBe('Switch language')
})
it('should fallback to message id if id is not found', async () => {
await locale.set('en')
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expect(_('batatinha.quente')).toBe('batatinha.quente')
})
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it('should fallback to default value if id is not found', async () => {
await locale.set('en')
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expect(_('batatinha.quente', { default: 'Hot Potato' })).toBe('Hot Potato')
})
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it('should fallback to generic locale XX if id not found in XX-YY', async () => {
await locale.set('en-GB')
expect(_('sneakers', { locale: 'en-GB' })).toBe('trainers')
})
it('should fallback to generic locale XX if id not found in XX-YY', async () => {
await locale.set('en-GB')
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expect(_('switch.lang')).toBe('Switch language')
})
it('should accept single object with id prop as the message path', async () => {
await locale.set('en')
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expect(_({ id: 'switch.lang' })).toBe('Switch language')
})
it('should translate to passed locale', async () => {
await waitLocale('pt-BR')
expect(_('switch.lang', { locale: 'pt' })).toBe('Trocar idioma')
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})
it('should interpolate message with variables', async () => {
await locale.set('en')
expect(_('greeting.message', { values: { name: 'Chris' } })).toBe(
'Hello Chris, how are you?'
)
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})
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})
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describe('utilities', () => {
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describe('get locale', () => {
beforeEach(() => {
delete window.location
window.location = {
pathname: '/',
hostname: 'example.com',
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hash: '',
search: '',
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} as any
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})
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it('should get the locale based on the passed hash parameter', () => {
window.location.hash = '#locale=en-US&lang=pt-BR'
expect(getClientLocale({ hash: 'lang' })).toBe('pt-BR')
})
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it('should get the locale based on the passed search parameter', () => {
window.location.search = '?locale=en-US&lang=pt-BR'
expect(getClientLocale({ search: 'lang' })).toBe('pt-BR')
})
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it('should get the locale based on the navigator language', () => {
expect(getClientLocale({ navigator: true })).toBe(
window.navigator.language
)
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})
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it('should get the default locale', () => {
expect(getClientLocale({ default: 'pt' })).toBe('pt')
})
it('should get the fallback locale', () => {
window.location.pathname = '/en-US/foo/'
expect(getClientLocale({ pathname: /^\/(.*?)\// })).toBe('en-US')
})
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it('should get the fallback locale', () => {
window.location.hostname = 'pt.example.com'
expect(getClientLocale({ hostname: /^(.*?)\./ })).toBe('pt')
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})
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})
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describe('format utils', () => {
beforeAll(async () => {
await locale.set('en')
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})
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it('should capital a translated message', () => {
expect(_.capital('hi')).toBe('Hi yo')
})
it('should title a translated message', () => {
expect(_.title('hi')).toBe('Hi Yo')
})
it('should lowercase a translated message', () => {
expect(_.lower('hi')).toBe('hi yo')
})
it('should uppercase a translated message', () => {
expect(_.upper('hi')).toBe('HI YO')
})
const date = new Date(2019, 3, 24, 23, 45)
it('should format a time value', async () => {
await locale.set('en')
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expect(_.time(date)).toBe('11:45 PM')
expect(_.time(date, { format: 'medium' })).toBe('11:45:00 PM')
expect(_.time(date, { format: 'medium', locale: 'pt-BR' })).toBe(
'23:45:00'
)
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})
it('should format a date value', () => {
expect(_.date(date)).toBe('4/24/19')
expect(_.date(date, { format: 'medium' })).toBe('Apr 24, 2019')
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})
// number
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it('should format a date value', () => {
expect(_.number(123123123)).toBe('123,123,123')
})
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})
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})
describe('custom formats', () => {
beforeAll(async () => {
await locale.set('pt-BR')
})
it('should have default number custom formats', () => {
expect(customFormats.number).toMatchObject({
scientific: { notation: 'scientific' },
engineering: { notation: 'engineering' },
compactLong: { notation: 'compact', compactDisplay: 'long' },
compactShort: { notation: 'compact', compactDisplay: 'short' },
})
})
it('should allow to add custom formats', () => {
addCustomFormats({
number: {
usd: { style: 'currency', currency: 'USD' },
},
})
expect(customFormats.number).toMatchObject({
usd: { style: 'currency', currency: 'USD' },
})
})
it('should format messages with custom formats', async () => {
addCustomFormats({
number: {
usd: { style: 'currency', currency: 'USD' },
brl: { style: 'currency', currency: 'BRL' },
},
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date: {
customDate: { year: 'numeric', era: 'short' },
},
time: {
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customTime: { hour: '2-digit', minute: '2-digit' },
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},
})
await locale.set('en-US')
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expect(_.number(123123123, { format: 'usd' })).toContain('$123,123,123.00')
expect(_.date(new Date(2019, 0, 1), { format: 'customDate' })).toEqual(
'2019 AD'
)
expect(
_.time(new Date(2019, 0, 1, 2, 0, 0), { format: 'customTime' })
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).toEqual('02:00')
})
})