svelte-i18n/test/client/includes/utils.test.ts

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import {
getClientLocale,
capital,
title,
upper,
lower,
} from '../../../src/client/includes/utils'
describe('getting client locale', () => {
beforeEach(() => {
delete window.location
window.location = {
pathname: '/',
hostname: 'example.com',
hash: '',
search: '',
} as any
})
test('gets the locale based on the passed hash parameter', () => {
window.location.hash = '#locale=en-US&lang=pt-BR'
expect(
getClientLocale({
hash: 'lang',
})
).toBe('pt-BR')
})
test('gets the locale based on the passed search parameter', () => {
window.location.search = '?locale=en-US&lang=pt-BR'
expect(
getClientLocale({
search: 'lang',
})
).toBe('pt-BR')
})
test('gets the locale based on the navigator language', () => {
expect(
getClientLocale({
navigator: true,
})
).toBe(window.navigator.language)
})
test('gets the locale based on the pathname', () => {
window.location.pathname = '/en-US/foo/'
expect(
getClientLocale({
pathname: /^\/(.*?)\//,
})
).toBe('en-US')
})
test('gets the locale base on the hostname', () => {
window.location.hostname = 'pt.example.com'
expect(
getClientLocale({
hostname: /^(.*?)\./,
})
).toBe('pt')
})
test('hostname precedes pathname', () => {
window.location.pathname = '/en-US/foo/'
window.location.hostname = 'pt.example.com'
expect(
getClientLocale({
hostname: /^(.*?)\./,
pathname: /^\/(.*?)\//,
})
).toBe('pt')
})
test('pathname precedes navigator', () => {
window.location.pathname = '/it-IT/foo/'
expect(
getClientLocale({
pathname: /^\/(.*?)\//,
navigator: true,
})
).toBe('it-IT')
})
test('navigator precedes search', () => {
window.location.search = '?lang=pt-BR'
expect(
getClientLocale({
navigator: true,
search: 'lang',
})
).toBe('en-US')
})
test('search precedes hash', () => {
window.location.hash = '#lang=pt-BR'
window.location.search = '?lang=it-IT'
expect(
getClientLocale({
hash: 'lang',
search: 'lang',
})
).toBe('it-IT')
})
test('returns null if no locale was found', () => {
expect(
getClientLocale({
search: 'lang',
})
).toBe(null)
})
})
describe('string utilities', () => {
test('transforms a string into capital case', () => {
expect(capital('lowercase string')).toMatch('Lowercase string')
})
test('transforms a string into title case', () => {
expect(title('lowercase string')).toMatch('Lowercase String')
})
test('transforms a string into uppercase', () => {
expect(upper('lowercase string')).toMatch('LOWERCASE STRING')
})
test('transforms a string into lowercase', () => {
expect(lower('UPPERCASE STRING')).toMatch('uppercase string')
})
})