vue/test/unit/specs/directives/public/bind_spec.js

var _ = require('../../../../../src/util')
var def = require('../../../../../src/directives/public/bind')

if (_.inBrowser) {
  describe('v-bind', function () {

    var el, dir
    beforeEach(function () {
      el = document.createElement('div')
      dir = {el: el}
      _.extend(dir, def)
    })

    it('normal attr', function () {
      dir.descriptor = {
        arg: 'test'
      }

      dir.update('ok')
      expect(el.getAttribute('test')).toBe('ok')
      dir.update('again')
      expect(el.getAttribute('test')).toBe('again')
      dir.update(null)
      expect(el.hasAttribute('test')).toBe(false)
      dir.update(false)
      expect(el.hasAttribute('test')).toBe(false)
      dir.update(0)
      expect(el.getAttribute('test')).toBe('0')
    })

    it('should set property for input value', function () {
      dir.el = document.createElement('input')
      dir.descriptor = {
        arg: 'value'
      }
      dir.update('what')
      expect(dir.el.hasAttribute('value')).toBe(false)
      expect(dir.el.value).toBe('what')
      dir.el = document.createElement('input')
      dir.el.type = 'checkbox'
      dir.descriptor = {
        arg: 'checked'
      }
      expect(dir.el.checked).toBe(false)
      dir.update(true)
      expect(dir.el.checked).toBe(true)
    })

    it('xlink', function () {
      var xlinkNS = 'http://www.w3.org/1999/xlink'
      dir.descriptor = {
        arg: 'xlink:special'
      }
      dir.update('ok')
      expect(el.getAttributeNS(xlinkNS, 'special')).toBe('ok')
      dir.update('again')
      expect(el.getAttributeNS(xlinkNS, 'special')).toBe('again')
      dir.update(null)
      expect(el.hasAttributeNS(xlinkNS, 'special')).toBe(false)
    })
  })
}