44 lines
1002 B
JavaScript
44 lines
1002 B
JavaScript
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import { createDateTimeFormat, languageCode } from '~/locale';
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const setLanguage = (languageCode) => {
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const htmlElement = document.querySelector('html');
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if (languageCode) {
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htmlElement.setAttribute('lang', languageCode);
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} else {
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htmlElement.removeAttribute('lang');
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}
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};
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describe('locale', () => {
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afterEach(() => {
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setLanguage(null);
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});
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describe('languageCode', () => {
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it('parses the lang attribute', () => {
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setLanguage('ja');
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expect(languageCode()).toBe('ja');
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});
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it('falls back to English', () => {
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setLanguage(null);
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expect(languageCode()).toBe('en');
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});
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});
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describe('createDateTimeFormat', () => {
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beforeEach(() => {
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setLanguage('de');
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});
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it('creates an instance of Intl.DateTimeFormat', () => {
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const dateFormat = createDateTimeFormat({ year: 'numeric', month: 'long', day: 'numeric' });
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expect(dateFormat.format(new Date(2015, 6, 3))).toBe('3. Juli 2015');
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});
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});
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});
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