text: /** @jsx jsx */
  
  import { Editor } from 'slate'
  import { jsx } from '../../..'
  
  export const input = (
    <editor>
      <block>one</block>
    </editor>
  )
  
  export const run = editor => {
    return Editor.match(editor, [0, 0], 'block')
  }
  
  export const output = [<block>one</block>, [0]]
  