How do you think we do
```
suite('language description', function() {
  var languagePanel = settingsApp.languagePanel;

  test('root panel is translated as French', function() {
    languagePanel.currentLanguage = 'french';
    languagePanel.back();
    assert.ok(rootPanel.isLanguageDescTranslated('french'));
  });

  test('root panel is translated as English', function() {
    languagePanel.currentLanguage = 'french';
    languagePanel.back();
    assert.ok(rootPanel.isLanguageDescTranslated('french'));
  });

 // ...
});
```
for the above logic.