editor.on('remove', () => {
    // We probably don't need these unbinds, but it helps to have them if we move this code out.
    editor.off('mousedown', onContentMousedown);
    editor.off('touchstart', onContentMousedown);
    editor.off('mouseup', onContentMouseup);
    editor.off('ResizeWindow', onWindowResize);
    editor.off('ScrollWindow', onWindowScroll);

    onMousedown.unbind();
    onTouchstart.unbind();
    onMouseup.unbind();
  });

  suite.test('OpenWindow/CloseWindow events', function (editor: Editor) {
    let openWindowArgs, closeWindowArgs;

    editor.on('CloseWindow', function (e) {
      closeWindowArgs = e;
    });

    editor.on('OpenWindow', function (e) {
      openWindowArgs = e;
      editor.windowManager.close();
    });

    editor.windowManager.open({
      title: 'Find and Replace',
      body: {
        type: 'panel',
        items: []
      },
      buttons: []
    });

    LegacyUnit.equal(openWindowArgs.type, 'openwindow');
    LegacyUnit.equal(closeWindowArgs.type, 'closewindow');

    editor.off('CloseWindow OpenWindow');
  });

 const bindHandler = function (label, handler) {
   editor.on(label, handler);
   return {
     unbind () {
       editor.off(label);
     }
   };
 };

 return () => ed.off('splitbutton1-toggle', f);

 return () => editor.off('PastePlainTextToggle', pastePlainTextToggleHandler);

 return () => editor.off('Undo Redo AddUndo TypingUndo ClearUndos SwitchMode', onUndoStateChange);

 return () => editor.off('StoreDraft RestoreDraft RemoveDraft', editorEventCallback);

 return () => {
   editor.off(spellcheckerEvents, setMenuItemCheck);
 };