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const expect = chai.expect;
import _, { Localizer, l10n } from '../app/localization.js';
describe('Localization', function () {
"use strict";
describe('Singleton', function () {
it('should export a singleton object', function () {
expect(l10n).to.be.instanceOf(Localizer);
});
it('should export a singleton translation function', function () {
// FIXME: Can we use some spy instead?
l10n.dictionary = { "Foobar": "gazonk" };
expect(_("Foobar")).to.equal("gazonk");
});
});
describe('language selection', function () {
let origNavigator;
beforeEach(function () {
// window.navigator is a protected read-only property in many
// environments, so we need to redefine it whilst running these
// tests.
origNavigator = Object.getOwnPropertyDescriptor(window, "navigator");
Object.defineProperty(window, "navigator", {value: {}});
window.navigator.languages = [];
});
afterEach(function () {
Object.defineProperty(window, "navigator", origNavigator);
});
it('should use English by default', function () {
let lclz = new Localizer();
expect(lclz.language).to.equal('en');
});
it('should use English if no user language matches', function () {
window.navigator.languages = ["nl", "de"];
let lclz = new Localizer();
lclz.setup(["es", "fr"]);
expect(lclz.language).to.equal('en');
});
it('should fall back to generic English for other English', function () {
window.navigator.languages = ["en-AU", "de"];
let lclz = new Localizer();
lclz.setup(["de", "fr", "en-GB"]);
expect(lclz.language).to.equal('en');
});
it('should prefer specific English over generic', function () {
window.navigator.languages = ["en-GB", "de"];
let lclz = new Localizer();
lclz.setup(["de", "en-AU", "en-GB"]);
expect(lclz.language).to.equal('en-GB');
});
it('should use the most preferred user language', function () {
window.navigator.languages = ["nl", "de", "fr"];
let lclz = new Localizer();
lclz.setup(["es", "fr", "de"]);
expect(lclz.language).to.equal('de');
});
it('should prefer sub-languages languages', function () {
window.navigator.languages = ["pt-BR"];
let lclz = new Localizer();
lclz.setup(["pt", "pt-BR"]);
expect(lclz.language).to.equal('pt-BR');
});
it('should fall back to language "parents"', function () {
window.navigator.languages = ["pt-BR"];
let lclz = new Localizer();
lclz.setup(["fr", "pt", "de"]);
expect(lclz.language).to.equal('pt');
});
it('should not use specific language when user asks for a generic language', function () {
window.navigator.languages = ["pt", "de"];
let lclz = new Localizer();
lclz.setup(["fr", "pt-BR", "de"]);
expect(lclz.language).to.equal('de');
});
it('should handle underscore as a separator', function () {
window.navigator.languages = ["pt-BR"];
let lclz = new Localizer();
lclz.setup(["pt_BR"]);
expect(lclz.language).to.equal('pt_BR');
});
it('should handle difference in case', function () {
window.navigator.languages = ["pt-br"];
let lclz = new Localizer();
lclz.setup(["pt-BR"]);
expect(lclz.language).to.equal('pt-BR');
});
});
});
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