@bender-ui: collapsed 1. Click "Init editor". 2. Expected: * Framed editor should be created. * It should be rectangular (400x400). * Original element should disappear. * There should be a toolbar with "Bold" and "Italic" buttons. 3. Click "Destroy editor". 4. Expected: * Editor should be destroyed. * Original element should be visible. * The element should contain its data (updated). * The 'ck-body region' should be removed. ## Notes: * You can play with: * `editor.editable.isEditable`, * `editor.ui.width/height`. * `boldModel.isEnabled` and `italicModel.isEnabled`. * Changes to `editable.isFocused/isEditable` should be logged to the console. * Clicks on the buttons should be logged to the console.