text: 
  import assert from 'assert'
  
  export default function (state) {
    const { document, selection } = state
    const texts = document.getTexts()
    const second = texts.get(1)
  
    const next = state
      .transform()
      .select({
        anchorKey: second.key,
        anchorOffset: 0,
        focusKey: second.key,
        focusOffset: second.length
      })
      .collapseToEnd()
      .apply()
  
    assert.deepEqual(next.selection.toJS(), {
      anchorKey: second.key,
      anchorOffset: second.length,
      focusKey: second.key,
      focusOffset: second.length,
      isBackward: false,
      isFocused: false,
      marks: null,
    })
  }
  