const assert = require('chai').assert
const makeList = require('../makeList.js').makeList



// may crash with NaN
describe('creating a list', function () {
    let myList = makeList()
        let testInput = [
      '',
      1,
      -30,
      'panda',
      { testObj: 'pandisimo' },
      [1, 2, 3, 4]
    ]

it('the list must begin as an empty one',function (){
    assert.equal(myList.toString(),'', 'on init the list is not empty')
})

  it('it should add firstElem in list', function () {
    for (let testElem of testInput) {
      myList.addLeft(testElem)
      let output = Array.from(myList.toString().split(', '))
      assert.equal(output[0], testElem, 'dosent crate elem in empty list')
    }
  })

// toString


it('it should return string splited by comma and space',function(){
    let tempTest = myList.toString()
    let output = Array.from(tempTest.split(', '))

    assert.equal(output.length,testInput.length, 'dosent Split Correctly')

})


// add last elem
 it('it should add lastElem in list', function () {

    for (let testElem of testInput) {
      myList.addRight(testElem)
      let output = Array.from(myList.toString().split(', '))
      assert.equal(output[output.length-1], testElem, 'dosent crate elem in empty list')
    }
  })
// clear the list
it('it should clear the arr', function(){
    myList.clear()
    assert.equal(myList.toString(),'', 'dosent clear the list')
})

})