text: const fromLast = require('./index')
  const L = require('./linkedlist')
  const List = L.LinkedList
  const Node = L.Node
  
  test('fromLast is a function', () => {
    expect(typeof fromLast).toEqual('function')
  })
  
  test('fromLast returns the node n elements from the end', () => {
    const l = new List()
  
    l.insertLast('a')
    l.insertLast('b')
    l.insertLast('c')
    l.insertLast('d')
    l.insertLast('e')
  
    expect(fromLast(l, 3).data).toEqual('b')
  })
  