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const expect = chai.expect;
import { l10n } from '../app/localization.js';
describe('Localization', function () {
"use strict";
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 () {
expect(l10n.language).to.equal('en');
});
it('should use English if no user language matches', function () {
window.navigator.languages = ["nl", "de"];
l10n.setup(["es", "fr"]);
expect(l10n.language).to.equal('en');
});
it('should use the most preferred user language', function () {
window.navigator.languages = ["nl", "de", "fr"];
l10n.setup(["es", "fr", "de"]);
expect(l10n.language).to.equal('de');
});
it('should prefer sub-languages languages', function () {
window.navigator.languages = ["pt-BR"];
l10n.setup(["pt", "pt-BR"]);
expect(l10n.language).to.equal('pt-BR');
});
it('should fall back to language "parents"', function () {
window.navigator.languages = ["pt-BR"];
l10n.setup(["fr", "pt", "de"]);
expect(l10n.language).to.equal('pt');
});
it('should not use specific language when user asks for a generic language', function () {
window.navigator.languages = ["pt", "de"];
l10n.setup(["fr", "pt-BR", "de"]);
expect(l10n.language).to.equal('de');
});
it('should handle underscore as a separator', function () {
window.navigator.languages = ["pt-BR"];
l10n.setup(["pt_BR"]);
expect(l10n.language).to.equal('pt_BR');
});
it('should handle difference in case', function () {
window.navigator.languages = ["pt-br"];
l10n.setup(["pt-BR"]);
expect(l10n.language).to.equal('pt-BR');
});
});
});
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