carousel.js

$(function () {
  'use strict'

  window.Carousel = typeof bootstrap !== 'undefined' ? bootstrap.Carousel : Carousel

  var originWinPointerEvent = window.PointerEvent
  window.MSPointerEvent = null
  var supportPointerEvent = Boolean(window.PointerEvent || window.MSPointerEvent)

  function clearPointerEvents() {
    window.PointerEvent = null
  }

  function restorePointerEvents() {
    window.PointerEvent = originWinPointerEvent
  }

  var stylesCarousel = [
    '<style>',
    '  .carousel.pointer-event { -ms-touch-action: none; touch-action: none; }',
    '</style>'
  ].join('')

  QUnit.module('carousel plugin')

  QUnit.test('should be defined on jQuery object', function (assert) {
    assert.expect(1)
    assert.ok($(document.body).carousel, 'carousel method is defined')
  })

  QUnit.module('carousel', {
    beforeEach: function () {
      // Run all tests in noConflict mode -- it's the only way to ensure that the plugin works in noConflict mode
      $.fn.bootstrapCarousel = $.fn.carousel.noConflict()
    },
    afterEach: function () {
      $('.carousel').bootstrapCarousel('dispose')
      $.fn.carousel = $.fn.bootstrapCarousel
      delete $.fn.bootstrapCarousel
      $('#qunit-fixture').html('')
    }
  })

  QUnit.test('should provide no conflict', function (assert) {
    assert.expect(1)
    assert.strictEqual(typeof $.fn.carousel, 'undefined', 'carousel was set back to undefined (orig value)')
  })

  QUnit.test('should return version', function (assert) {
    assert.expect(1)

    assert.strictEqual(typeof Carousel.VERSION, 'string')
  })

  QUnit.test('should return default parameters', function (assert) {
    assert.expect(1)

    var defaultConfig = Carousel.Default

    assert.strictEqual(defaultConfig.touch, true)
  })

  QUnit.test('should throw explicit error on undefined method', function (assert) {
    assert.expect(1)
    var $el = $('<div/>')
    $el.bootstrapCarousel()
    try {
      $el.bootstrapCarousel('noMethod')
    } catch (err) {
      assert.strictEqual(err.message, 'No method named "noMethod"')