text: 1. Click "Init editors".
  2. Expected:
    * Two inline editor should be created.
    * Elements used as editables should remain visible.
      * They should preserve `.custom-class` and `custom-attr="foo"`.
    * There should be floating toolbars with "Bold", "Italic", "Undo", "Redo", "Link" and "Unlink" buttons.
  3. Scroll the webpage.
  4. Expected:
    * Focused editor's toolbar should float around but always stick to editable.
    * Focused editor's toolbar should stick to the bottom of the editable if there's not enough space above.
  5. Press <kbd>Alt+F10</kbd> when focusing the editor.
  6. Expected:
    * Toolbar should gain focus. Editable should keep its styling.
  7. Click "Destroy editors".
  8. Expected:
    * Editors should be destroyed.
    * Element used as editables should remain visible.
      * They should preserve `.custom-class` and `custom-attr="foo"`.
    * Elements should contain its data (updated).
    * `.ck-body` regions should be removed from `<body>`.
  
  ## Notes:
  
  * You can play with:
    * `window.editables[ N ].isReadOnly`,
  * Changes to `window.editors[ name ].focusTracker.isFocused` should be logged to the console.
  * Features should work.
  