text: /* jshint expr: true */
  
  var assert = chai.assert;
  var expect = chai.expect;
  
  import l10nGet, { l10n } from '../app/localization.js';
  
  describe('Localization', function() {
      "use strict";
  
      describe('language selection', function () {
          var 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");
              if (origNavigator === undefined) {
                  // Object.getOwnPropertyDescriptor() doesn't work
                  // properly in any version of IE
                  this.skip();
              }
  
              Object.defineProperty(window, "navigator", {value: {}});
              if (window.navigator.languages !== undefined) {
                  // Object.defineProperty() doesn't work properly in old
                  // versions of Chrome
                  this.skip();
              }
  
              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');
          });
      });
  });
  