javascript-time-ago
Version:
Localized relative date/time formatting
37 lines • 1.61 kB
JavaScript
import chooseLocale, { intlDateTimeFormatSupportedLocale } from './locale.js';
describe('locale', function () {
it("should tell if can use Intl for date formatting", function () {
intlDateTimeFormatSupportedLocale('en').should.equal('en');
intlDateTimeFormatSupportedLocale('en-XX').should.equal('en-XX');
intlDateTimeFormatSupportedLocale(['en', 'ru']).should.equal('en');
});
it("should choose the most appropriate locale", function () {
function arrayToObject(array) {
return array.reduce(function (object, locale) {
object[locale] = true;
return object;
}, {});
}
function choose(locale, locales) {
var defaultLocale = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'en';
if (typeof locale === 'string') {
locale = [locale];
}
locale = locale.concat(defaultLocale);
return chooseLocale(locale, function (_) {
return locales.includes(_);
});
}
choose('ru-RU', ['en', 'ru']).should.equal('ru');
choose('en-GB', ['en', 'ru']).should.equal('en');
choose('fr-FR', ['en', 'ru']).should.equal('en');
choose(['fr-FR', 'de-DE'], ['en', 'ru']).should.equal('en');
choose(['fr-FR', 'de-DE'], ['en', 'de']).should.equal('de');
choose(['fr-FR', 'de-DE'], ['en', 'de', 'fr']).should.equal('fr');
choose('fr-FR', ['en', 'fr-FR']).should.equal('fr-FR');
expect(function () {
return choose('fr-FR', ['de', 'ru']);
}).to["throw"]('No locale data has been registered for any of the locales: fr-FR');
});
});
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