stringify.spec.js

/* global __karma__ */
var chai = require('chai')
var expect = chai.expect

var stringify = require('../../client/stringify')

describe('stringify', function () {
  it('should serialize string', function () {
    expect(stringify('aaa')).to.be.eql("'aaa'")
  })

  it('should serialize booleans', function () {
    expect(stringify(true)).to.be.eql('true')
    expect(stringify(false)).to.be.eql('false')
  })

  it('should serialize null and undefined', function () {
    expect(stringify(null)).to.be.eql('null')
    expect(stringify()).to.be.eql('undefined')
  })

  it('should serialize functions', function () {
    function abc (a, b, c) { return 'whatever' }
    var def = function (d, e, f) { return 'whatever' }

    expect(stringify(abc)).to.be.eql('function abc(a, b, c) { ... }')
    expect(stringify(def)).to.be.eql('function (d, e, f) { ... }')
  })

  it('should serialize arrays', function () {
    expect(stringify(['a', 'b', null, true, false])).to.be.eql("['a', 'b', null, true, false]")
  })

  it('should serialize objects', function () {
    var obj

    obj = {a: 'a', b: 'b', c: null, d: true, e: false}
    expect(stringify(obj)).to.be.eql("Object{a: 'a', b: 'b', c: null, d: true, e: false}")

    function MyObj () {
      this.a = 'a'
    }

    obj = new MyObj()
    expect(stringify(obj)).to.be.eql("MyObj{a: 'a'}")

    obj = {constructor: null}
    expect(stringify(obj)).to.be.eql('Object{constructor: null}')

    obj = Object.create(null)
    obj.a = 'a'
    expect(stringify(obj)).to.be.eql("Object{a: 'a'}")
  })

  it('should serialize html', function () {
    var div = document.createElement('div')

    expect(stringify(div)).to.be.eql('<div></div>')

    div.innerHTML = 'some <span>text</span>'
    expect(stringify(div)).to.be.eql('<div>some <span>text</span></div>')
  })

  it('should serialize DOMParser objects', function () {
    var parser = new DOMParser()
    var doc = parser.parseFromString('<test></test>', 'application/xml')
    expect(stringify(doc)).to.be.eql('<test></test>')
  })

  it('should serialize across iframes', function () {
    var div = document.createElement('div')
    expect(__karma__.stringify(div)).to.be.eql('<div></div>')

    expect(__karma__.stringify([1, 2])).to.be.eql('[1, 2]')
  })
})