rewrite carousel unit tests

6 files changed, 1209 insertions, 1384 deletions

diff --git a/js/index.esm.js b/js/index.esm.js
index ca47d7405e..4f5058560d 100644
--- a/js/index.esm.js
+++ b/js/index.esm.js
@@ -7,7 +7,7 @@
 
 import Alert from './src/alert/alert'
 import Button from './src/button/button'
-import Carousel from './src/carousel'
+import Carousel from './src/carousel/carousel'
 import Collapse from './src/collapse'
 import Dropdown from './src/dropdown'
 import Modal from './src/modal'
diff --git a/js/index.umd.js b/js/index.umd.js
index 2cb90696da..f3b81377e5 100644
--- a/js/index.umd.js
+++ b/js/index.umd.js
@@ -7,7 +7,7 @@
 
 import Alert from './src/alert/alert'
 import Button from './src/button/button'
-import Carousel from './src/carousel'
+import Carousel from './src/carousel/carousel'
 import Collapse from './src/collapse'
 import Dropdown from './src/dropdown'
 import Modal from './src/modal'
diff --git a/js/src/carousel.js b/js/src/carousel/carousel.js
index 7cd790f85d..0e1bad14ac 100644
--- a/js/src/carousel.js
+++ b/js/src/carousel/carousel.js
@@ -16,11 +16,11 @@ import {
   reflow,
   triggerTransitionEnd,
   typeCheckConfig
-} from './util/index'
-import Data from './dom/data'
-import EventHandler from './dom/event-handler'
-import Manipulator from './dom/manipulator'
-import SelectorEngine from './dom/selector-engine'
+} from '../util/index'
+import Data from '../dom/data'
+import EventHandler from '../dom/event-handler'
+import Manipulator from '../dom/manipulator'
+import SelectorEngine from '../dom/selector-engine'
 
 /**
  * ------------------------------------------------------------------------
@@ -283,16 +283,12 @@ class Carousel {
         .on(this._element, Event.MOUSELEAVE, event => this.cycle(event))
     }
 
-    if (this._config.touch) {
+    if (this._config.touch && this._touchSupported) {
       this._addTouchEventListeners()
     }
   }
 
   _addTouchEventListeners() {
-    if (!this._touchSupported) {
-      return
-    }
-
     const start = event => {
       if (this._pointerEvent && PointerType[event.pointerType.toUpperCase()]) {
         this.touchStartX = event.clientX
@@ -631,7 +627,7 @@ EventHandler.on(window, Event.LOAD_DATA_API, () => {
  * ------------------------------------------------------------------------
  * add .carousel to jQuery only if jQuery is present
  */
-
+/* istanbul ignore if */
 if (typeof $ !== 'undefined') {
   const JQUERY_NO_CONFLICT = $.fn[NAME]
   $.fn[NAME] = Carousel._jQueryInterface
diff --git a/js/src/carousel/carousel.spec.js b/js/src/carousel/carousel.spec.js
new file mode 100644
index 0000000000..9f897110d5
--- /dev/null
+++ b/js/src/carousel/carousel.spec.js
@@ -0,0 +1,1197 @@
+import Carousel from './carousel'
+import EventHandler from '../dom/event-handler'
+
+/** Test helpers */
+import { getFixture, clearFixture, createEvent, jQueryMock } from '../../tests/helpers/fixture'
+
+describe('Carousel', () => {
+  const { Simulator, PointerEvent, MSPointerEvent } = window
+  const originWinPointerEvent = PointerEvent || MSPointerEvent
+  const supportPointerEvent = Boolean(PointerEvent || MSPointerEvent)
+
+  window.MSPointerEvent = null
+  const cssStyleCarousel = '.carousel.pointer-event { -ms-touch-action: none; touch-action: none; }'
+
+  const stylesCarousel = document.createElement('style')
+  stylesCarousel.type = 'text/css'
+  stylesCarousel.appendChild(document.createTextNode(cssStyleCarousel))
+
+  const clearPointerEvents = () => {
+    window.PointerEvent = null
+  }
+
+  const restorePointerEvents = () => {
+    window.PointerEvent = originWinPointerEvent
+  }
+
+  let fixtureEl
+
+  beforeAll(() => {
+    fixtureEl = getFixture()
+  })
+
+  afterEach(() => {
+    clearFixture()
+  })
+
+  describe('VERSION', () => {
+    it('should return plugin version', () => {
+      expect(Carousel.VERSION).toEqual(jasmine.any(String))
+    })
+  })
+
+  describe('Default', () => {
+    it('should return plugin default config', () => {
+      expect(Carousel.Default).toEqual(jasmine.any(Object))
+    })
+  })
+
+  describe('constructor', () => {
+    it('should go to next item if right arrow key is pressed', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div id="item2" class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, {
+        keyboard: true
+      })
+
+      spyOn(carousel, '_keydown').and.callThrough()
+
+      carouselEl.addEventListener('slid.bs.carousel', () => {
+        expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item2'))
+        expect(carousel._keydown).toHaveBeenCalled()
+        done()
+      })
+
+      const keyDown = createEvent('keydown')
+      keyDown.which = 39
+
+      carouselEl.dispatchEvent(keyDown)
+    })
+
+    it('should go to previous item if left arrow key is pressed', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div id="item1" class="carousel-item">item 1</div>',
+        '    <div class="carousel-item active">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, {
+        keyboard: true
+      })
+
+      spyOn(carousel, '_keydown').and.callThrough()
+
+      carouselEl.addEventListener('slid.bs.carousel', () => {
+        expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item1'))
+        expect(carousel._keydown).toHaveBeenCalled()
+        done()
+      })
+
+      const keyDown = createEvent('keydown')
+      keyDown.which = 37
+
+      carouselEl.dispatchEvent(keyDown)
+    })
+
+    it('should not prevent keydown if key is not ARROW_LEFT or ARROW_RIGHT', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, {
+        keyboard: true
+      })
+
+      spyOn(carousel, '_keydown').and.callThrough()
+
+      carouselEl.addEventListener('keydown', event => {
+        expect(carousel._keydown).toHaveBeenCalled()
+        expect(event.defaultPrevented).toEqual(false)
+        done()
+      })
+
+      const keyDown = createEvent('keydown')
+      keyDown.which = 40
+
+      carouselEl.dispatchEvent(keyDown)
+    })
+
+    it('should ignore keyboard events within <input>s and <textarea>s', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">',
+        '      <input type="text" />',
+        '      <textarea></textarea>',
+        '    </div>',
+        '    <div class="carousel-item"></div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const input = fixtureEl.querySelector('input')
+      const textarea = fixtureEl.querySelector('textarea')
+      const carousel = new Carousel(carouselEl, {
+        keyboard: true
+      })
+
+      const spyKeyDown = spyOn(carousel, '_keydown').and.callThrough()
+      const spyPrev = spyOn(carousel, 'prev')
+      const spyNext = spyOn(carousel, 'next')
+
+      const keyDown = createEvent('keydown', { bubbles: true, cancelable: true })
+      keyDown.which = 39
+      Object.defineProperty(keyDown, 'target', {
+        value: input,
+        writable: true,
+        configurable: true
+      })
+
+      input.dispatchEvent(keyDown)
+
+      expect(spyKeyDown).toHaveBeenCalled()
+      expect(spyPrev).not.toHaveBeenCalled()
+      expect(spyNext).not.toHaveBeenCalled()
+
+      spyKeyDown.calls.reset()
+      spyPrev.calls.reset()
+      spyNext.calls.reset()
+
+      Object.defineProperty(keyDown, 'target', {
+        value: textarea
+      })
+      textarea.dispatchEvent(keyDown)
+
+      expect(spyKeyDown).toHaveBeenCalled()
+      expect(spyPrev).not.toHaveBeenCalled()
+      expect(spyNext).not.toHaveBeenCalled()
+    })
+
+    it('should wrap around from end to start when wrap option is true', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div id="one" class="carousel-item active"></div>',
+        '    <div id="two" class="carousel-item"></div>',
+        '    <div id="three" class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, { wrap: true })
+      const getActiveId = () => {
+        return carouselEl.querySelector('.carousel-item.active').getAttribute('id')
+      }
+
+      carouselEl.addEventListener('slid.bs.carousel', e => {
+        const activeId = getActiveId()
+
+        if (activeId === 'two') {
+          carousel.next()
+          return
+        }
+
+        if (activeId === 'three') {
+          carousel.next()
+          return
+        }
+
+        if (activeId === 'one') {
+          // carousel wrapped around and slid from 3rd to 1st slide
+          expect(activeId).toEqual('one')
+          expect(e.from + 1).toEqual(3)
+          done()
+        }
+      })
+
+      carousel.next()
+    })
+
+    it('should stay at the start when the prev method is called and wrap is false', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div id="one" class="carousel-item active"></div>',
+        '    <div id="two" class="carousel-item"></div>',
+        '    <div id="three" class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const firstElement = fixtureEl.querySelector('#one')
+      const carousel = new Carousel(carouselEl, { wrap: false })
+
+      carouselEl.addEventListener('slid.bs.carousel', () => {
+        throw new Error('carousel slid when it should not have slid')
+      })
+
+      carousel.prev()
+
+      setTimeout(() => {
+        expect(firstElement.classList.contains('active')).toEqual(true)
+        done()
+      }, 10)
+    })
+
+    it('should not add touch event listeners if touch = false', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const carouselEl = fixtureEl.querySelector('div')
+
+      spyOn(Carousel.prototype, '_addTouchEventListeners')
+
+      const carousel = new Carousel(carouselEl, {
+        touch: false
+      })
+
+      expect(carousel._addTouchEventListeners).not.toHaveBeenCalled()
+    })
+
+    it('should not add touch event listeners if touch supported = false', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const carouselEl = fixtureEl.querySelector('div')
+
+      const carousel = new Carousel(carouselEl)
+
+      EventHandler.off(carouselEl, '.bs-carousel')
+      carousel._touchSupported = false
+
+      spyOn(carousel, '_addTouchEventListeners')
+
+      carousel._addEventListeners()
+
+      expect(carousel._addTouchEventListeners).not.toHaveBeenCalled()
+    })
+
+    it('should add touch event listeners by default', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const carouselEl = fixtureEl.querySelector('div')
+
+      spyOn(Carousel.prototype, '_addTouchEventListeners')
+
+      document.documentElement.ontouchstart = () => {}
+      const carousel = new Carousel(carouselEl)
+
+      expect(carousel._addTouchEventListeners).toHaveBeenCalled()
+    })
+
+    it('should allow swiperight and call prev with pointer events', done => {
+      if (!supportPointerEvent) {
+        expect().nothing()
+        done()
+        return
+      }
+
+      document.documentElement.ontouchstart = () => {}
+      document.head.appendChild(stylesCarousel)
+      Simulator.setType('pointer')
+
+      fixtureEl.innerHTML = [
+        '<div class="carousel" data-interval="false">',
+        '  <div class="carousel-inner">',
+        '    <div id="item" class="carousel-item">',
+        '      <img alt="">',
+        '    </div>',
+        '    <div class="carousel-item active">',
+        '      <img alt="">',
+        '    </div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('.carousel')
+      const item = fixtureEl.querySelector('#item')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(carousel, 'prev').and.callThrough()
+
+      carouselEl.addEventListener('slid.bs.carousel', () => {
+        expect(item.classList.contains('active')).toEqual(true)
+        expect(carousel.prev).toHaveBeenCalled()
+        document.head.removeChild(stylesCarousel)
+        delete document.documentElement.ontouchstart
+        done()
+      })
+
+      Simulator.gestures.swipe(carouselEl, {
+        deltaX: 300,
+        deltaY: 0
+      })
+    })
+
+    it('should allow swipeleft and call next with pointer events', done => {
+      if (!supportPointerEvent) {
+        expect().nothing()
+        done()
+        return
+      }
+
+      document.documentElement.ontouchstart = () => {}
+      document.head.appendChild(stylesCarousel)
+      Simulator.setType('pointer')
+
+      fixtureEl.innerHTML = [
+        '<div class="carousel" data-interval="false">',
+        '  <div class="carousel-inner">',
+        '    <div id="item" class="carousel-item active">',
+        '      <img alt="">',
+        '    </div>',
+        '    <div class="carousel-item">',
+        '      <img alt="">',
+        '    </div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('.carousel')
+      const item = fixtureEl.querySelector('#item')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(carousel, 'next').and.callThrough()
+
+      carouselEl.addEventListener('slid.bs.carousel', () => {
+        expect(item.classList.contains('active')).toEqual(false)
+        expect(carousel.next).toHaveBeenCalled()
+        document.head.removeChild(stylesCarousel)
+        delete document.documentElement.ontouchstart
+        done()
+      })
+
+      Simulator.gestures.swipe(carouselEl, {
+        pos: [300, 10],
+        deltaX: -300,
+        deltaY: 0
+      })
+    })
+
+    it('should allow swiperight and call prev with touch events', done => {
+      Simulator.setType('touch')
+      clearPointerEvents()
+      document.documentElement.ontouchstart = () => {}
+
+      fixtureEl.innerHTML = [
+        '<div class="carousel" data-interval="false">',
+        '  <div class="carousel-inner">',
+        '    <div id="item" class="carousel-item">',
+        '      <img alt="">',
+        '    </div>',
+        '    <div class="carousel-item active">',
+        '      <img alt="">',
+        '    </div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('.carousel')
+      const item = fixtureEl.querySelector('#item')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(carousel, 'prev').and.callThrough()
+
+      carouselEl.addEventListener('slid.bs.carousel', () => {
+        expect(item.classList.contains('active')).toEqual(true)
+        expect(carousel.prev).toHaveBeenCalled()
+        delete document.documentElement.ontouchstart
+        restorePointerEvents()
+        done()
+      })
+
+      Simulator.gestures.swipe(carouselEl, {
+        deltaX: 300,
+        deltaY: 0
+      })
+    })
+
+    it('should allow swipeleft and call next with touch events', done => {
+      Simulator.setType('touch')
+      clearPointerEvents()
+      document.documentElement.ontouchstart = () => {}
+
+      fixtureEl.innerHTML = [
+        '<div class="carousel" data-interval="false">',
+        '  <div class="carousel-inner">',
+        '    <div id="item" class="carousel-item active">',
+        '      <img alt="">',
+        '    </div>',
+        '    <div class="carousel-item">',
+        '      <img alt="">',
+        '    </div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('.carousel')
+      const item = fixtureEl.querySelector('#item')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(carousel, 'next').and.callThrough()
+
+      carouselEl.addEventListener('slid.bs.carousel', () => {
+        expect(item.classList.contains('active')).toEqual(false)
+        expect(carousel.next).toHaveBeenCalled()
+        delete document.documentElement.ontouchstart
+        restorePointerEvents()
+        done()
+      })
+
+      Simulator.gestures.swipe(carouselEl, {
+        pos: [300, 10],
+        deltaX: -300,
+        deltaY: 0
+      })
+    })
+
+    it('should not allow pinch with touch events', done => {
+      Simulator.setType('touch')
+      clearPointerEvents()
+      document.documentElement.ontouchstart = () => {}
+
+      fixtureEl.innerHTML = '<div class="carousel" data-interval="false"></div>'
+
+      const carouselEl = fixtureEl.querySelector('.carousel')
+      const carousel = new Carousel(carouselEl)
+
+      Simulator.gestures.swipe(carouselEl, {
+        pos: [300, 10],
+        deltaX: -300,
+        deltaY: 0,
+        touches: 2
+      }, () => {
+        restorePointerEvents()
+        delete document.documentElement.ontouchstart
+        expect(carousel.touchDeltaX).toEqual(0)
+        done()
+      })
+    })
+
+    it('should call pause method on mouse over with pause equal to hover', done => {
+      fixtureEl.innerHTML = '<div class="carousel"></div>'
+
+      const carouselEl = fixtureEl.querySelector('.carousel')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(carousel, 'pause')
+
+      const mouseOverEvent = createEvent('mouseover')
+      carouselEl.dispatchEvent(mouseOverEvent)
+
+      setTimeout(() => {
+        expect(carousel.pause).toHaveBeenCalled()
+        done()
+      }, 10)
+    })
+
+    it('should call cycle on mouse out with pause equal to hover', done => {
+      fixtureEl.innerHTML = '<div class="carousel"></div>'
+
+      const carouselEl = fixtureEl.querySelector('.carousel')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(carousel, 'cycle')
+
+      const mouseOutEvent = createEvent('mouseout')
+      carouselEl.dispatchEvent(mouseOutEvent)
+
+      setTimeout(() => {
+        expect(carousel.cycle).toHaveBeenCalled()
+        done()
+      }, 10)
+    })
+  })
+
+  describe('next', () => {
+    it('should not slide if the carousel is sliding', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const carouselEl = fixtureEl.querySelector('div')
+      const carousel = new Carousel(carouselEl, {})
+
+      spyOn(carousel, '_slide')
+
+      carousel._isSliding = true
+      carousel.next()
+
+      expect(carousel._slide).not.toHaveBeenCalled()
+    })
+
+    it('should not fire slid when slide is prevented', done => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const carouselEl = fixtureEl.querySelector('div')
+      const carousel = new Carousel(carouselEl, {})
+      let slidEvent = false
+
+      const doneTest = () => {
+        setTimeout(() => {
+          expect(slidEvent).toEqual(false)
+          done()
+        }, 20)
+      }
+
+      carouselEl.addEventListener('slide.bs.carousel', e => {
+        e.preventDefault()
+        doneTest()
+      })
+
+      carouselEl.addEventListener('slid.bs.carousel', () => {
+        slidEvent = true
+      })
+
+      carousel.next()
+    })
+
+    it('should fire slide event with: direction, relatedTarget, from and to', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, {})
+
+      const onSlide = e => {
+        expect(e.direction).toEqual('left')
+        expect(e.relatedTarget.classList.contains('carousel-item')).toEqual(true)
+        expect(e.from).toEqual(0)
+        expect(e.to).toEqual(1)
+
+        carouselEl.removeEventListener('slide.bs.carousel', onSlide)
+        carouselEl.addEventListener('slide.bs.carousel', onSlide2)
+
+        carousel.prev()
+      }
+
+      const onSlide2 = e => {
+        expect(e.direction).toEqual('right')
+        done()
+      }
+
+      carouselEl.addEventListener('slide.bs.carousel', onSlide)
+      carousel.next()
+    })
+
+    it('should fire slid event with: direction, relatedTarget, from and to', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, {})
+
+      const onSlid = e => {
+        expect(e.direction).toEqual('left')
+        expect(e.relatedTarget.classList.contains('carousel-item')).toEqual(true)
+        expect(e.from).toEqual(0)
+        expect(e.to).toEqual(1)
+
+        carouselEl.removeEventListener('slid.bs.carousel', onSlid)
+        carouselEl.addEventListener('slid.bs.carousel', onSlid2)
+
+        carousel.prev()
+      }
+
+      const onSlid2 = e => {
+        expect(e.direction).toEqual('right')
+        done()
+      }
+
+      carouselEl.addEventListener('slid.bs.carousel', onSlid)
+      carousel.next()
+    })
+
+    it('should get interval from data attribute in individual item', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item" data-interval="7">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, {
+        interval: 1814
+      })
+
+      expect(carousel._config.interval).toEqual(1814)
+
+      carousel.next()
+
+      expect(carousel._config.interval).toEqual(7)
+    })
+
+    it('should update indicators if present', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <ol class="carousel-indicators">',
+        '    <li data-target="#myCarousel" data-slide-to="0" class="active"></li>',
+        '    <li id="secondIndicator" data-target="#myCarousel" data-slide-to="1"></li>',
+        '    <li data-target="#myCarousel" data-slide-to="2"></li>',
+        '  </ol>',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item" data-interval="7">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const secondIndicator = fixtureEl.querySelector('#secondIndicator')
+      const carousel = new Carousel(carouselEl)
+
+      carouselEl.addEventListener('slid.bs.carousel', () => {
+        expect(secondIndicator.classList.contains('active')).toEqual(true)
+        done()
+      })
+
+      carousel.next()
+    })
+  })
+
+  describe('nextWhenVisible', () => {
+    it('should not call next when the page is not visible', () => {
+      fixtureEl.innerHTML = '<div class="carousel" data-interval="false"></div>'
+
+      const carouselEl = fixtureEl.querySelector('div')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(carousel, 'next')
+
+      carousel.nextWhenVisible()
+
+      expect(carousel.next).not.toHaveBeenCalled()
+    })
+  })
+
+  describe('prev', () => {
+    it('should not slide if the carousel is sliding', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const carouselEl = fixtureEl.querySelector('div')
+      const carousel = new Carousel(carouselEl, {})
+
+      spyOn(carousel, '_slide')
+
+      carousel._isSliding = true
+      carousel.prev()
+
+      expect(carousel._slide).not.toHaveBeenCalled()
+    })
+  })
+
+  describe('pause', () => {
+    it('should call cycle if the carousel have carousel-item-next and carousel-item-prev class', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item carousel-item-next">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '  <div class="carousel-control-prev"></div>',
+        '  <div class="carousel-control-next"></div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(carousel, 'cycle')
+      spyOn(window, 'clearInterval')
+
+      carousel.pause()
+
+      expect(carousel.cycle).toHaveBeenCalledWith(true)
+      expect(window.clearInterval).toHaveBeenCalled()
+      expect(carousel._isPaused).toEqual(true)
+    })
+
+    it('should not call cycle if nothing is in transition', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '  <div class="carousel-control-prev"></div>',
+        '  <div class="carousel-control-next"></div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(carousel, 'cycle')
+      spyOn(window, 'clearInterval')
+
+      carousel.pause()
+
+      expect(carousel.cycle).not.toHaveBeenCalled()
+      expect(window.clearInterval).toHaveBeenCalled()
+      expect(carousel._isPaused).toEqual(true)
+    })
+
+    it('should not set is paused at true if an event is passed', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '  <div class="carousel-control-prev"></div>',
+        '  <div class="carousel-control-next"></div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl)
+      const event = createEvent('mouseenter')
+
+      spyOn(window, 'clearInterval')
+
+      carousel.pause(event)
+
+      expect(window.clearInterval).toHaveBeenCalled()
+      expect(carousel._isPaused).toEqual(false)
+    })
+  })
+
+  describe('cycle', () => {
+    it('should set an interval', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '  <div class="carousel-control-prev"></div>',
+        '  <div class="carousel-control-next"></div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(window, 'setInterval').and.callThrough()
+
+      carousel.cycle()
+
+      expect(window.setInterval).toHaveBeenCalled()
+    })
+
+    it('should not set interval if the carousel is paused', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '  <div class="carousel-control-prev"></div>',
+        '  <div class="carousel-control-next"></div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(window, 'setInterval').and.callThrough()
+
+      carousel._isPaused = true
+      carousel.cycle(true)
+
+      expect(window.setInterval).not.toHaveBeenCalled()
+    })
+
+    it('should clear interval if there is one', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '  <div class="carousel-control-prev"></div>',
+        '  <div class="carousel-control-next"></div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl)
+
+      carousel._interval = setInterval(() => {}, 10)
+
+      spyOn(window, 'setInterval').and.callThrough()
+      spyOn(window, 'clearInterval').and.callThrough()
+
+      carousel.cycle()
+
+      expect(window.setInterval).toHaveBeenCalled()
+      expect(window.clearInterval).toHaveBeenCalled()
+    })
+  })
+
+  describe('to', () => {
+    it('should go directement to the provided index', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div id="item1" class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item">item 2</div>',
+        '    <div id="item3" class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, {})
+
+      expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item1'))
+
+      carousel.to(2)
+
+      carouselEl.addEventListener('slid.bs.carousel', () => {
+        expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item3'))
+        done()
+      })
+    })
+
+    it('should return to a previous slide if the provided index is lower than the current', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item">item 1</div>',
+        '    <div id="item2" class="carousel-item">item 2</div>',
+        '    <div id="item3" class="carousel-item active">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, {})
+
+      expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item3'))
+
+      carousel.to(1)
+
+      carouselEl.addEventListener('slid.bs.carousel', () => {
+        expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item2'))
+        done()
+      })
+    })
+
+    it('should do nothing if a wrong index is provided', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item" data-interval="7">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, {})
+
+      const spy = spyOn(carousel, '_slide')
+
+      carousel.to(25)
+
+      expect(spy).not.toHaveBeenCalled()
+
+      spy.calls.reset()
+
+      carousel.to(-5)
+
+      expect(spy).not.toHaveBeenCalled()
+    })
+
+    it('should call pause and cycle is the provided is the same compare to the current one', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item" data-interval="7">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, {})
+
+      spyOn(carousel, '_slide')
+      spyOn(carousel, 'pause')
+      spyOn(carousel, 'cycle')
+
+      carousel.to(0)
+
+      expect(carousel._slide).not.toHaveBeenCalled()
+      expect(carousel.pause).toHaveBeenCalled()
+      expect(carousel.cycle).toHaveBeenCalled()
+    })
+
+    it('should wait before performing to if a slide is sliding', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item" data-interval="7">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl, {})
+
+      spyOn(EventHandler, 'one').and.callThrough()
+      spyOn(carousel, '_slide')
+
+      carousel._isSliding = true
+      carousel.to(1)
+
+      expect(carousel._slide).not.toHaveBeenCalled()
+      expect(EventHandler.one).toHaveBeenCalled()
+
+      spyOn(carousel, 'to')
+
+      EventHandler.trigger(carouselEl, 'slid.bs.carousel')
+
+      setTimeout(() => {
+        expect(carousel.to).toHaveBeenCalledWith(1)
+        done()
+      })
+    })
+  })
+
+  describe('dispose', () => {
+    it('should destroy a carousel', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item" data-interval="7">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '</div>'
+      ].join('')
+
+      const carouselEl = fixtureEl.querySelector('#myCarousel')
+      const carousel = new Carousel(carouselEl)
+
+      spyOn(EventHandler, 'off').and.callThrough()
+
+      carousel.dispose()
+
+      expect(EventHandler.off).toHaveBeenCalled()
+    })
+  })
+
+  describe('_jQueryInterface', () => {
+    it('should create a carousel', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      jQueryMock.fn.carousel = Carousel._jQueryInterface
+      jQueryMock.elements = [div]
+
+      jQueryMock.fn.carousel.call(jQueryMock)
+
+      expect(Carousel._getInstance(div)).toBeDefined()
+    })
+
+    it('should not re create a carousel', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const carousel = new Carousel(div)
+
+      jQueryMock.fn.carousel = Carousel._jQueryInterface
+      jQueryMock.elements = [div]
+
+      jQueryMock.fn.carousel.call(jQueryMock)
+
+      expect(Carousel._getInstance(div)).toEqual(carousel)
+    })
+
+    it('should call to if the config is a number', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const carousel = new Carousel(div)
+      const slideTo = 2
+
+      spyOn(carousel, 'to')
+
+      jQueryMock.fn.carousel = Carousel._jQueryInterface
+      jQueryMock.elements = [div]
+
+      jQueryMock.fn.carousel.call(jQueryMock, slideTo)
+
+      expect(carousel.to).toHaveBeenCalledWith(slideTo)
+    })
+
+    it('should throw error on undefined method', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const action = 'undefinedMethod'
+
+      jQueryMock.fn.carousel = Carousel._jQueryInterface
+      jQueryMock.elements = [div]
+
+      try {
+        jQueryMock.fn.carousel.call(jQueryMock, action)
+      } catch (error) {
+        expect(error.message).toEqual(`No method named "${action}"`)
+      }
+    })
+  })
+
+  describe('data-api', () => {
+    it('should init carousels with data-ride="carousel" on load', () => {
+      fixtureEl.innerHTML = '<div data-ride="carousel"></div>'
+
+      const carouselEl = fixtureEl.querySelector('div')
+      const loadEvent = createEvent('load')
+
+      window.dispatchEvent(loadEvent)
+
+      expect(Carousel._getInstance(carouselEl)).toBeDefined()
+    })
+
+    it('should create carousel and go to the next slide on click', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div id="item2" class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '  <div class="carousel-control-prev" data-target="#myCarousel" role="button" data-slide="prev"></div>',
+        '  <div id="next" class="carousel-control-next" data-target="#myCarousel" role="button" data-slide="next"></div>',
+        '</div>'
+      ].join('')
+
+      const next = fixtureEl.querySelector('#next')
+      const item2 = fixtureEl.querySelector('#item2')
+
+      next.click()
+
+      setTimeout(() => {
+        expect(item2.classList.contains('active')).toEqual(true)
+        done()
+      }, 10)
+    })
+
+    it('should create carousel and go to the next slide on click with data-slide-to', done => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div id="item2" class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '  <div id="next" data-target="#myCarousel" data-slide-to="1"></div>',
+        '</div>'
+      ].join('')
+
+      const next = fixtureEl.querySelector('#next')
+      const item2 = fixtureEl.querySelector('#item2')
+
+      next.click()
+
+      setTimeout(() => {
+        expect(item2.classList.contains('active')).toEqual(true)
+        done()
+      }, 10)
+    })
+
+    it('should do nothing if no selector on click on arrows', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="carousel slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '  <div class="carousel-control-prev" data-target="#myCarousel" role="button" data-slide="prev"></div>',
+        '  <div id="next" class="carousel-control-next" role="button" data-slide="next"></div>',
+        '</div>'
+      ].join('')
+
+      const next = fixtureEl.querySelector('#next')
+
+      next.click()
+
+      expect().nothing()
+    })
+
+    it('should do nothing if no carousel class on click on arrows', () => {
+      fixtureEl.innerHTML = [
+        '<div id="myCarousel" class="slide">',
+        '  <div class="carousel-inner">',
+        '    <div class="carousel-item active">item 1</div>',
+        '    <div id="item2" class="carousel-item">item 2</div>',
+        '    <div class="carousel-item">item 3</div>',
+        '  </div>',
+        '  <div class="carousel-control-prev" data-target="#myCarousel" role="button" data-slide="prev"></div>',
+        '  <div id="next" class="carousel-control-next" data-target="#myCarousel" role="button" data-slide="next"></div>',
+        '</div>'
+      ].join('')
+
+      const next = fixtureEl.querySelector('#next')
+
+      next.click()
+
+      expect().nothing()
+    })
+  })
+})
diff --git a/js/tests/karma.conf.js b/js/tests/karma.conf.js
index b5b9fb3736..00bf5d8d35 100644
--- a/js/tests/karma.conf.js
+++ b/js/tests/karma.conf.js
@@ -74,7 +74,9 @@ const rollupPreprocessor = {
   }
 }
 
-let files = []
+let files = [
+  'node_modules/hammer-simulator/index.js'
+]
 
 const conf = {
   basePath: '../..',
diff --git a/js/tests/unit/carousel.js b/js/tests/unit/carousel.js
deleted file mode 100644
index f92d87c612..0000000000
--- a/js/tests/unit/carousel.js
+++ /dev/null
@@ -1,1370 +0,0 @@
-$(function () {
-  'use strict'
-
-  window.Carousel = typeof bootstrap === 'undefined' ? Carousel : bootstrap.Carousel
-
-  var originWinPointerEvent = window.PointerEvent
-  window.MSPointerEvent = null
-  var supportPointerEvent = Boolean(window.PointerEvent || window.MSPointerEvent)
-
-  function clearPointerEvents() {
-    window.PointerEvent = null
-  }
-
-  function restorePointerEvents() {
-    window.PointerEvent = originWinPointerEvent
-  }
-
-  var stylesCarousel = [
-    '<style>',
-    '  .carousel.pointer-event { -ms-touch-action: none; touch-action: none; }',
-    '</style>'
-  ].join('')
-
-  QUnit.module('carousel plugin')
-
-  QUnit.test('should be defined on jQuery object', function (assert) {
-    assert.expect(1)
-    assert.ok($(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 the 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 (error) {
-      assert.strictEqual(error.message, 'No method named "noMethod"')
-    }
-  })
-
-  QUnit.test('should return jquery collection containing the element', function (assert) {
-    assert.expect(2)
-    var $el = $('<div/>')
-    var $carousel = $el.bootstrapCarousel()
-    assert.ok($carousel instanceof $, 'returns jquery collection')
-    assert.strictEqual($carousel[0], $el[0], 'collection contains element')
-  })
-
-  QUnit.test('should type check config options', function (assert) {
-    assert.expect(2)
-
-    var message
-    var expectedMessage = 'CAROUSEL: Option "interval" provided type "string" but expected type "(number|boolean)".'
-    var config = {
-      interval: 'fat sux'
-    }
-
-    try {
-      $('<div/>').bootstrapCarousel(config)
-    } catch (error) {
-      message = error.message
-    }
-
-    assert.ok(message === expectedMessage, 'correct error message')
-
-    config = {
-      keyboard: document.createElement('div')
-    }
-    expectedMessage = 'CAROUSEL: Option "keyboard" provided type "element" but expected type "boolean".'
-
-    try {
-      $('<div/>').bootstrapCarousel(config)
-    } catch (error) {
-      message = error.message
-    }
-
-    assert.ok(message === expectedMessage, 'correct error message')
-  })
-
-  QUnit.test('should not fire slid when slide is prevented', function (assert) {
-    assert.expect(1)
-    var done = assert.async()
-    var $carousel = $('<div class="carousel"/>')
-    $carousel.appendTo('#qunit-fixture')
-
-    $carousel[0].addEventListener('slide.bs.carousel', function (e) {
-      e.preventDefault()
-      assert.ok(true, 'slide event fired')
-      done()
-    })
-    $carousel[0].addEventListener('slid.bs.carousel', function () {
-      assert.ok(false, 'slid event fired')
-    })
-    $carousel.bootstrapCarousel('next')
-  })
-
-  QUnit.test('should reset when slide is prevented', function (assert) {
-    assert.expect(6)
-    var carouselHTML = '<div id="carousel-example-generic" class="carousel slide">' +
-        '<ol class="carousel-indicators">' +
-        '<li data-target="#carousel-example-generic" data-slide-to="0" class="active"/>' +
-        '<li data-target="#carousel-example-generic" data-slide-to="1"/>' +
-        '<li data-target="#carousel-example-generic" data-slide-to="2"/>' +
-        '</ol>' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#carousel-example-generic" data-slide="prev"/>' +
-        '<a class="right carousel-control" href="#carousel-example-generic" data-slide="next"/>' +
-        '</div>'
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-
-    var done = assert.async()
-    function onSlide(e) {
-      e.preventDefault()
-      setTimeout(function () {
-        assert.ok($carousel.find('.carousel-item:nth-child(1)').is('.active'), 'first item still active')
-        assert.ok($carousel.find('.carousel-indicators li:nth-child(1)').is('.active'), 'first indicator still active')
-        $carousel.bootstrapCarousel('next')
-      }, 0)
-      $carousel[0].removeEventListener('slide.bs.carousel', onSlide)
-    }
-
-    $carousel[0].addEventListener('slide.bs.carousel', onSlide)
-
-    function onSlid() {
-      setTimeout(function () {
-        assert.ok(!$carousel.find('.carousel-item:nth-child(1)').is('.active'), 'first item still active')
-        assert.ok(!$carousel.find('.carousel-indicators li:nth-child(1)').is('.active'), 'first indicator still active')
-        assert.ok($carousel.find('.carousel-item:nth-child(2)').is('.active'), 'second item active')
-        assert.ok($carousel.find('.carousel-indicators li:nth-child(2)').is('.active'), 'second indicator active')
-        done()
-      }, 0)
-      $carousel[0].removeEventListener('slid.bs.carousel', onSlid)
-    }
-
-    $carousel[0].addEventListener('slid.bs.carousel', onSlid)
-
-    $carousel.bootstrapCarousel('next')
-  })
-
-  QUnit.test('should fire slide event with direction', function (assert) {
-    assert.expect(4)
-    var carouselHTML = '<div id="myCarousel" class="carousel slide">' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>First Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Second Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Third Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#myCarousel" data-slide="prev">&lsaquo;</a>' +
-        '<a class="right carousel-control" href="#myCarousel" data-slide="next">&rsaquo;</a>' +
-        '</div>'
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-
-    var done = assert.async()
-
-    function onSlide(e) {
-      assert.ok(e.direction, 'direction present on next')
-      assert.strictEqual(e.direction, 'left', 'direction is left on next')
-
-      $carousel[0].addEventListener('slide.bs.carousel', onSlide2)
-      $carousel[0].removeEventListener('slide.bs.carousel', onSlide)
-      $carousel.bootstrapCarousel('prev')
-    }
-
-    function onSlide2(e) {
-      assert.ok(e.direction, 'direction present on prev')
-      assert.strictEqual(e.direction, 'right', 'direction is right on prev')
-      done()
-    }
-
-    $carousel[0].addEventListener('slide.bs.carousel', onSlide)
-    $carousel.bootstrapCarousel('next')
-  })
-
-  QUnit.test('should fire slid event with direction', function (assert) {
-    assert.expect(4)
-    var carouselHTML = '<div id="myCarousel" class="carousel slide">' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>First Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Second Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Third Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#myCarousel" data-slide="prev">&lsaquo;</a>' +
-        '<a class="right carousel-control" href="#myCarousel" data-slide="next">&rsaquo;</a>' +
-        '</div>'
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-
-    var done = assert.async()
-
-    function onSlid(e) {
-      assert.ok(e.direction, 'direction present on next')
-      assert.strictEqual(e.direction, 'left', 'direction is left on next')
-
-      $carousel[0].addEventListener('slid.bs.carousel', onSlid2)
-      $carousel[0].removeEventListener('slid.bs.carousel', onSlid)
-      $carousel.bootstrapCarousel('prev')
-    }
-
-    function onSlid2(e) {
-      assert.ok(e.direction, 'direction present on prev')
-      assert.strictEqual(e.direction, 'right', 'direction is right on prev')
-      $carousel[0].removeEventListener('slid.bs.carousel', onSlid2)
-      done()
-    }
-
-    $carousel[0].addEventListener('slid.bs.carousel', onSlid)
-    $carousel.bootstrapCarousel('next')
-  })
-
-  QUnit.test('should fire slide event with relatedTarget', function (assert) {
-    assert.expect(2)
-    var template = '<div id="myCarousel" class="carousel slide">' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>First Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Second Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Third Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#myCarousel" data-slide="prev">&lsaquo;</a>' +
-        '<a class="right carousel-control" href="#myCarousel" data-slide="next">&rsaquo;</a>' +
-        '</div>'
-
-    var done = assert.async()
-    var $carousel = $(template)
-    $carousel.appendTo('#qunit-fixture')
-
-    function onSlide(e) {
-      assert.ok(e.relatedTarget, 'relatedTarget present')
-      assert.ok($(e.relatedTarget).hasClass('carousel-item'), 'relatedTarget has class "item"')
-      $carousel[0].removeEventListener('slide.bs.carousel', onSlide)
-      done()
-    }
-
-    $carousel[0].addEventListener('slide.bs.carousel', onSlide)
-    $carousel.bootstrapCarousel('next')
-  })
-
-  QUnit.test('should fire slid event with relatedTarget', function (assert) {
-    assert.expect(2)
-    var template = '<div id="myCarousel" class="carousel slide">' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>First Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Second Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Third Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#myCarousel" data-slide="prev">&lsaquo;</a>' +
-        '<a class="right carousel-control" href="#myCarousel" data-slide="next">&rsaquo;</a>' +
-        '</div>'
-
-    var done = assert.async()
-    var $carousel = $(template)
-    $carousel.appendTo('#qunit-fixture')
-
-    $carousel[0].addEventListener('slid.bs.carousel', function (e) {
-      assert.ok(e.relatedTarget, 'relatedTarget present')
-      assert.ok($(e.relatedTarget).hasClass('carousel-item'), 'relatedTarget has class "item"')
-      done()
-    })
-
-    $carousel.bootstrapCarousel('next')
-  })
-
-  QUnit.test('should fire slid and slide events with from and to', function (assert) {
-    assert.expect(4)
-    var template = '<div id="myCarousel" class="carousel slide">' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>First Thumbnail label</h4>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Second Thumbnail label</h4>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Third Thumbnail label</h4>' +
-        '</div>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#myCarousel" data-slide="prev">&lsaquo;</a>' +
-        '<a class="right carousel-control" href="#myCarousel" data-slide="next">&rsaquo;</a>' +
-        '</div>'
-
-    var done = assert.async()
-    var $carousel = $(template)
-
-    $carousel[0].addEventListener('slid.bs.carousel', function (e) {
-      assert.ok(typeof e.from !== 'undefined', 'from present')
-      assert.ok(typeof e.to !== 'undefined', 'to present')
-      done()
-    })
-
-    $carousel[0].addEventListener('slide.bs.carousel', function (e) {
-      assert.ok(typeof e.from !== 'undefined', 'from present')
-      assert.ok(typeof e.to !== 'undefined', 'to present')
-    })
-
-    $carousel.bootstrapCarousel('next')
-  })
-
-  QUnit.test('should set interval from data attribute', function (assert) {
-    assert.expect(4)
-    var templateHTML = '<div id="myCarousel" class="carousel slide">' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>First Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Second Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Third Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#myCarousel" data-slide="prev">&lsaquo;</a>' +
-        '<a class="right carousel-control" href="#myCarousel" data-slide="next">&rsaquo;</a>' +
-        '</div>'
-    var $carousel = $(templateHTML)
-    $carousel.attr('data-interval', 1814)
-
-    $carousel.appendTo('body')
-    $('[data-slide]').first()[0].dispatchEvent(new Event('click'))
-    assert.strictEqual(Carousel._getInstance($carousel[0])._config.interval, 1814)
-    $carousel.remove()
-
-    $carousel.appendTo('body').attr('data-modal', 'foobar')
-    $('[data-slide]').first()[0].dispatchEvent(new Event('click'))
-    assert.strictEqual(Carousel._getInstance($carousel[0])._config.interval, 1814, 'even if there is an data-modal attribute set')
-    $carousel.remove()
-
-    $carousel.appendTo('body')
-    $('[data-slide]').first()[0].dispatchEvent(new Event('click'))
-    $carousel.attr('data-interval', 1860)
-
-    $('[data-slide]').first()[0].dispatchEvent(new Event('click'))
-    assert.strictEqual(Carousel._getInstance($carousel[0])._config.interval, 1814, 'attributes should be read only on initialization')
-    $carousel.bootstrapCarousel('dispose')
-    $carousel.remove()
-
-    $carousel.attr('data-interval', false)
-    $carousel.appendTo('body')
-    $carousel.bootstrapCarousel(1)
-    assert.strictEqual(Carousel._getInstance($carousel[0])._config.interval, false, 'data attribute has higher priority than default options')
-    $carousel.remove()
-  })
-
-  QUnit.test('should set interval from data attribute on individual carousel-item', function (assert) {
-    assert.expect(2)
-    var templateHTML = '<div id="myCarousel" class="carousel slide" data-interval="1814">' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active" data-interval="2814">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>First Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item" data-interval="3814">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Second Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '<div class="carousel-caption">' +
-        '<h4>Third Thumbnail label</h4>' +
-        '<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec ' +
-        'id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ' +
-        'ultricies vehicula ut id elit.</p>' +
-        '</div>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#myCarousel" data-slide="prev">&lsaquo;</a>' +
-        '<a class="right carousel-control" href="#myCarousel" data-slide="next">&rsaquo;</a>' +
-        '</div>'
-
-    var $carousel = $(templateHTML).appendTo('#qunit-fixture')
-    $carousel.bootstrapCarousel(1)
-    var carousel = Carousel._getInstance($carousel[0])
-    assert.strictEqual(carousel._config.interval, 3814)
-    carousel.dispose()
-    $carousel.remove()
-
-    $carousel = $carousel.appendTo('#qunit-fixture')
-    $carousel.bootstrapCarousel(2)
-    carousel = Carousel._getInstance($carousel[0])
-
-    assert.strictEqual(carousel._config.interval, 1814, 'reverts to default interval if no data-interval is set')
-    $carousel.remove()
-  })
-
-  QUnit.test('should skip over non-items when using item indices', function (assert) {
-    assert.expect(2)
-    var templateHTML = '<div id="myCarousel" class="carousel" data-interval="1814">' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active">' +
-        '<img alt="">' +
-        '</div>' +
-        '<script type="text/x-metamorph" id="thingy"/>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '</div>' +
-        '</div>' +
-        '</div>'
-    var $template = $(templateHTML)
-
-    $template.bootstrapCarousel()
-
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item active')
-
-    $template.bootstrapCarousel(1)
-
-    assert.strictEqual($template.find('.carousel-item')[1], $template.find('.active')[0], 'second item active')
-  })
-
-  QUnit.test('should skip over non-items when using next/prev methods', function (assert) {
-    assert.expect(2)
-    var templateHTML = '<div id="myCarousel" class="carousel" data-interval="1814">' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active">' +
-        '<img alt="">' +
-        '</div>' +
-        '<script type="text/x-metamorph" id="thingy"/>' +
-        '<div class="carousel-item">' +
-        '<img alt="">' +
-        '</div>' +
-        '<div class="carousel-item">' +
-        '</div>' +
-        '</div>' +
-        '</div>'
-    var $template = $(templateHTML)
-
-    $template.bootstrapCarousel()
-
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item active')
-
-    $template.bootstrapCarousel('next')
-
-    assert.strictEqual($template.find('.carousel-item')[1], $template.find('.active')[0], 'second item active')
-  })
-
-  QUnit.test('should go to previous item if left arrow key is pressed', function (assert) {
-    assert.expect(2)
-    var templateHTML = '<div id="myCarousel" class="carousel" data-interval="false">' +
-        '<div class="carousel-inner">' +
-        '<div id="first" class="carousel-item">' +
-        '<img alt="">' +
-        '</div>' +
-        '<div id="second" class="carousel-item active">' +
-        '<img alt="">' +
-        '</div>' +
-        '<div id="third" class="carousel-item">' +
-        '<img alt="">' +
-        '</div>' +
-        '</div>' +
-        '</div>'
-    var $template = $(templateHTML)
-
-    $template.bootstrapCarousel()
-
-    assert.strictEqual($template.find('.carousel-item')[1], $template.find('.active')[0], 'second item active')
-
-    var keyDown = new Event('keydown')
-    keyDown.which = 37
-    $template[0].dispatchEvent(keyDown)
-
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item active')
-  })
-
-  QUnit.test('should go to next item if right arrow key is pressed', function (assert) {
-    assert.expect(2)
-    var templateHTML = '<div id="myCarousel" class="carousel" data-interval="false">' +
-        '<div class="carousel-inner">' +
-        '<div id="first" class="carousel-item active">' +
-        '<img alt="">' +
-        '</div>' +
-        '<div id="second" class="carousel-item">' +
-        '<img alt="">' +
-        '</div>' +
-        '<div id="third" class="carousel-item">' +
-        '<img alt="">' +
-        '</div>' +
-        '</div>' +
-        '</div>'
-    var $template = $(templateHTML)
-
-    $template.bootstrapCarousel()
-
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item active')
-
-    var keyDown = new Event('keydown')
-    keyDown.which = 39
-    $template[0].dispatchEvent(keyDown)
-
-    assert.strictEqual($template.find('.carousel-item')[1], $template.find('.active')[0], 'second item active')
-  })
-
-  QUnit.test('should not prevent keydown if key is not ARROW_LEFT or ARROW_RIGHT', function (assert) {
-    assert.expect(2)
-    var templateHTML = '<div id="myCarousel" class="carousel" data-interval="false">' +
-        '<div class="carousel-inner">' +
-        '<div id="first" class="carousel-item active">' +
-        '<img alt="">' +
-        '</div>' +
-        '</div>' +
-        '</div>'
-    var $template = $(templateHTML)
-
-    $template.bootstrapCarousel()
-    var done = assert.async()
-
-    function handlerKeydown(event) {
-      assert.strictEqual(event.defaultPrevented, false)
-      $template[0].removeEventListener('keydown', handlerKeydown)
-    }
-
-    $template[0].addEventListener('keydown', handlerKeydown)
-
-    // arrow down
-    var keyDown = new Event('keydown')
-    keyDown.which = 40
-    $template[0].dispatchEvent(keyDown)
-
-    function handlerKeydown2(event) {
-      assert.strictEqual(event.defaultPrevented, false)
-      $template[0].addEventListener('keydown', handlerKeydown2)
-      done()
-    }
-
-    $template[0].addEventListener('keydown', handlerKeydown2)
-
-    // arrow up
-    var keyDown2 = new Event('keydown')
-    keyDown2.which = 38
-    $template[0].dispatchEvent(keyDown2)
-  })
-
-  QUnit.test('should support disabling the keyboard navigation', function (assert) {
-    assert.expect(3)
-    var templateHTML = '<div id="myCarousel" class="carousel" data-interval="false" data-keyboard="false">' +
-        '<div class="carousel-inner">' +
-        '<div id="first" class="carousel-item active">' +
-        '<img alt="">' +
-        '</div>' +
-        '<div id="second" class="carousel-item">' +
-        '<img alt="">' +
-        '</div>' +
-        '<div id="third" class="carousel-item">' +
-        '<img alt="">' +
-        '</div>' +
-        '</div>' +
-        '</div>'
-    var $template = $(templateHTML)
-
-    $template.bootstrapCarousel()
-
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item active')
-
-    $template.trigger($.Event('keydown', {
-      which: 39
-    }))
-
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item still active after right arrow press')
-
-    $template.trigger($.Event('keydown', {
-      which: 37
-    }))
-
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item still active after left arrow press')
-  })
-
-  QUnit.test('should ignore keyboard events within <input>s and <textarea>s', function (assert) {
-    assert.expect(7)
-    var templateHTML = '<div id="myCarousel" class="carousel" data-interval="false">' +
-        '<div class="carousel-inner">' +
-        '<div id="first" class="carousel-item active">' +
-        '<img alt="">' +
-        '<input type="text" id="in-put">' +
-        '<textarea id="text-area"></textarea>' +
-        '</div>' +
-        '<div id="second" class="carousel-item">' +
-        '<img alt="">' +
-        '</div>' +
-        '<div id="third" class="carousel-item">' +
-        '<img alt="">' +
-        '</div>' +
-        '</div>' +
-        '</div>'
-    var $template = $(templateHTML)
-    var $input = $template.find('#in-put')
-    var $textarea = $template.find('#text-area')
-
-    assert.strictEqual($input.length, 1, 'found <input>')
-    assert.strictEqual($textarea.length, 1, 'found <textarea>')
-
-    $template.bootstrapCarousel()
-
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item active')
-
-    $input.trigger($.Event('keydown', {
-      which: 39
-    }))
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item still active after right arrow press in <input>')
-
-    $input.trigger($.Event('keydown', {
-      which: 37
-    }))
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item still active after left arrow press in <input>')
-
-    $textarea.trigger($.Event('keydown', {
-      which: 39
-    }))
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item still active after right arrow press in <textarea>')
-
-    $textarea.trigger($.Event('keydown', {
-      which: 37
-    }))
-    assert.strictEqual($template.find('.carousel-item')[0], $template.find('.active')[0], 'first item still active after left arrow press in <textarea>')
-  })
-
-  QUnit.test('should wrap around from end to start when wrap option is true', function (assert) {
-    assert.expect(3)
-    var carouselHTML = '<div id="carousel-example-generic" class="carousel slide" data-wrap="true">' +
-        '<ol class="carousel-indicators">' +
-        '<li data-target="#carousel-example-generic" data-slide-to="0" class="active"/>' +
-        '<li data-target="#carousel-example-generic" data-slide-to="1"/>' +
-        '<li data-target="#carousel-example-generic" data-slide-to="2"/>' +
-        '</ol>' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active" id="one">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '<div class="carousel-item" id="two">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '<div class="carousel-item" id="three">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#carousel-example-generic" data-slide="prev"/>' +
-        '<a class="right carousel-control" href="#carousel-example-generic" data-slide="next"/>' +
-        '</div>'
-    var $carousel = $(carouselHTML)
-    var done = assert.async()
-    var getActiveId = function () {
-      return $carousel.find('.carousel-item.active').attr('id')
-    }
-
-    $carousel[0].addEventListener('slid.bs.carousel', function () {
-      var activeId = getActiveId()
-      if (activeId === 'two') {
-        assert.strictEqual(activeId, 'two', 'carousel slid from 1st to 2nd slide')
-        $carousel.bootstrapCarousel('next')
-        return
-      }
-
-      if (activeId === 'three') {
-        assert.strictEqual(activeId, 'three', 'carousel slid from 2nd to 3rd slide')
-        $carousel.bootstrapCarousel('next')
-        return
-      }
-
-      if (activeId === 'one') {
-        assert.strictEqual(activeId, 'one', 'carousel wrapped around and slid from 3rd to 1st slide')
-        done()
-      }
-    })
-    $carousel.bootstrapCarousel('next')
-  })
-
-  QUnit.test('should wrap around from start to end when wrap option is true', function (assert) {
-    assert.expect(1)
-    var carouselHTML = '<div id="carousel-example-generic" class="carousel slide" data-wrap="true">' +
-        '<ol class="carousel-indicators">' +
-        '<li data-target="#carousel-example-generic" data-slide-to="0" class="active"/>' +
-        '<li data-target="#carousel-example-generic" data-slide-to="1"/>' +
-        '<li data-target="#carousel-example-generic" data-slide-to="2"/>' +
-        '</ol>' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active" id="one">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '<div class="carousel-item" id="two">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '<div class="carousel-item" id="three">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#carousel-example-generic" data-slide="prev"/>' +
-        '<a class="right carousel-control" href="#carousel-example-generic" data-slide="next"/>' +
-        '</div>'
-    var $carousel = $(carouselHTML)
-
-    var done = assert.async()
-
-    $carousel[0].addEventListener('slid.bs.carousel', function () {
-      assert.strictEqual($carousel.find('.carousel-item.active').attr('id'), 'three', 'carousel wrapped around and slid from 1st to 3rd slide')
-      done()
-    })
-    $carousel.bootstrapCarousel('prev')
-  })
-
-  QUnit.test('should stay at the end when the next method is called and wrap is false', function (assert) {
-    assert.expect(3)
-    var carouselHTML = '<div id="carousel-example-generic" class="carousel slide" data-wrap="false">' +
-        '<ol class="carousel-indicators">' +
-        '<li data-target="#carousel-example-generic" data-slide-to="0" class="active"/>' +
-        '<li data-target="#carousel-example-generic" data-slide-to="1"/>' +
-        '<li data-target="#carousel-example-generic" data-slide-to="2"/>' +
-        '</ol>' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active" id="one">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '<div class="carousel-item" id="two">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '<div class="carousel-item" id="three">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#carousel-example-generic" data-slide="prev"/>' +
-        '<a class="right carousel-control" href="#carousel-example-generic" data-slide="next"/>' +
-        '</div>'
-    var $carousel = $(carouselHTML).appendTo('#qunit-fixture')
-    var getActiveId = function () {
-      return $carousel.find('.carousel-item.active').attr('id')
-    }
-
-    var done = assert.async()
-    $carousel[0].addEventListener('slid.bs.carousel', function () {
-      var activeId = getActiveId()
-      if (activeId === 'two') {
-        assert.strictEqual(activeId, 'two', 'carousel slid from 1st to 2nd slide')
-        $carousel.bootstrapCarousel('next')
-        return
-      }
-
-      if (activeId === 'three') {
-        assert.strictEqual(activeId, 'three', 'carousel slid from 2nd to 3rd slide')
-        $carousel.bootstrapCarousel('next')
-        assert.strictEqual(getActiveId(), 'three', 'carousel did not wrap around and stayed on 3rd slide')
-        done()
-      }
-    })
-    $carousel.bootstrapCarousel('next')
-  })
-
-  QUnit.test('should stay at the start when the prev method is called and wrap is false', function (assert) {
-    assert.expect(1)
-    var carouselHTML = '<div id="carousel-example-generic" class="carousel slide" data-wrap="false">' +
-        '<ol class="carousel-indicators">' +
-        '<li data-target="#carousel-example-generic" data-slide-to="0" class="active"/>' +
-        '<li data-target="#carousel-example-generic" data-slide-to="1"/>' +
-        '<li data-target="#carousel-example-generic" data-slide-to="2"/>' +
-        '</ol>' +
-        '<div class="carousel-inner">' +
-        '<div class="carousel-item active" id="one">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '<div class="carousel-item" id="two">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '<div class="carousel-item" id="three">' +
-        '<div class="carousel-caption"/>' +
-        '</div>' +
-        '</div>' +
-        '<a class="left carousel-control" href="#carousel-example-generic" data-slide="prev"/>' +
-        '<a class="right carousel-control" href="#carousel-example-generic" data-slide="next"/>' +
-        '</div>'
-    var $carousel = $(carouselHTML)
-
-    $carousel[0].addEventListener('slid.bs.carousel', function () {
-      assert.ok(false, 'carousel slid when it should not have slid')
-    })
-    $carousel.bootstrapCarousel('prev')
-    assert.strictEqual($carousel.find('.carousel-item.active').attr('id'), 'one', 'carousel did not wrap around and stayed on 1st slide')
-  })
-
-  QUnit.test('should not prevent keydown for inputs and textareas', function (assert) {
-    assert.expect(2)
-    var templateHTML = '<div id="myCarousel" class="carousel" data-interval="false">' +
-        '<div class="carousel-inner">' +
-          '<div id="first" class="carousel-item">' +
-            '<input type="text" id="inputText" />' +
-          '</div>' +
-          '<div id="second" class="carousel-item active">' +
-            '<textarea id="txtArea"></textarea>' +
-          '</div>' +
-        '</div>' +
-        '</div>'
-    var $template = $(templateHTML)
-    var done = assert.async()
-    $template.appendTo('#qunit-fixture')
-    var $inputText = $template.find('#inputText')
-    var $textArea = $template.find('#txtArea')
-    $template.bootstrapCarousel()
-
-    var eventKeyDown = $.Event('keydown', {
-      which: 65
-    }) // 65 for "a"
-    $inputText.on('keydown', function (event) {
-      assert.strictEqual(event.isDefaultPrevented(), false)
-    })
-    $inputText.trigger(eventKeyDown)
-
-    $textArea.on('keydown', function (event) {
-      assert.strictEqual(event.isDefaultPrevented(), false)
-      done()
-    })
-    $textArea.trigger(eventKeyDown)
-  })
-
-  QUnit.test('should not go to the next item when the carousel is not visible', function (assert) {
-    assert.expect(2)
-    var done = assert.async()
-    var html = '<div id="myCarousel" class="carousel slide" data-interval="50" style="display: none;">' +
-             '  <div class="carousel-inner">' +
-             '    <div id="firstItem" class="carousel-item active">' +
-             '      <img alt="">' +
-             '    </div>' +
-             '    <div class="carousel-item">' +
-             '      <img alt="">' +
-             '    </div>' +
-             '    <div class="carousel-item">' +
-             '      <img alt="">' +
-             '    </div>' +
-             '  <a class="left carousel-control" href="#myCarousel" data-slide="prev">&lsaquo;</a>' +
-             '  <a class="right carousel-control" href="#myCarousel" data-slide="next">&rsaquo;</a>' +
-             '</div>'
-    var $html = $(html)
-    $html
-      .appendTo('#qunit-fixture')
-      .bootstrapCarousel()
-
-    var $firstItem = $('#firstItem')
-    setTimeout(function () {
-      assert.ok($firstItem.hasClass('active'))
-      $html
-        .bootstrapCarousel('dispose')
-        .attr('style', 'visibility: hidden;')
-        .bootstrapCarousel()
-
-      setTimeout(function () {
-        assert.ok($firstItem.hasClass('active'))
-        done()
-      }, 80)
-    }, 80)
-  })
-
-  QUnit.test('should not go to the next item when the parent of the carousel is not visible', function (assert) {
-    assert.expect(2)
-    var done = assert.async()
-    var html = '<div id="parent" style="display: none;">' +
-             '  <div id="myCarousel" class="carousel slide" data-interval="50" style="display: none;">' +
-             '    <div class="carousel-inner">' +
-             '      <div id="firstItem" class="carousel-item active">' +
-             '        <img alt="">' +
-             '      </div>' +
-             '      <div class="carousel-item">' +
-             '        <img alt="">' +
-             '      </div>' +
-             '      <div class="carousel-item">' +
-             '        <img alt="">' +
-             '      </div>' +
-             '    <a class="left carousel-control" href="#myCarousel" data-slide="prev">&lsaquo;</a>' +
-             '    <a class="right carousel-control" href="#myCarousel" data-slide="next">&rsaquo;</a>' +
-             '  </div>' +
-             '</div>'
-    var $html = $(html)
-    $html.appendTo('#qunit-fixture')
-    var $parent = $html.find('#parent')
-    var $carousel = $html.find('#myCarousel')
-    $carousel.bootstrapCarousel()
-    var $firstItem = $('#firstItem')
-
-    setTimeout(function () {
-      assert.ok($firstItem.hasClass('active'))
-      $carousel.bootstrapCarousel('dispose')
-      $parent.attr('style', 'visibility: hidden;')
-      $carousel.bootstrapCarousel()
-
-      setTimeout(function () {
-        assert.ok($firstItem.hasClass('active'))
-        done()
-      }, 80)
-    }, 80)
-  })
-
-  QUnit.test('should allow swiperight and call prev with pointer events', function (assert) {
-    if (!supportPointerEvent) {
-      assert.expect(0)
-      return
-    }
-
-    document.documentElement.ontouchstart = $.noop
-    Simulator.setType('pointer')
-    assert.expect(3)
-    var $styles = $(stylesCarousel).appendTo('head')
-    var done = assert.async()
-
-    var carouselHTML =
-        '<div class="carousel" data-interval="false">' +
-        '  <div class="carousel-inner">' +
-        '    <div id="item" class="carousel-item">' +
-        '      <img alt="">' +
-        '    </div>' +
-        '    <div class="carousel-item active">' +
-        '      <img alt="">' +
-        '    </div>' +
-        '  </div>' +
-        '</div>'
-
-    var $carousel = $(carouselHTML).appendTo('#qunit-fixture')
-    var $item = $('#item')
-    $carousel.bootstrapCarousel()
-    var carousel = Carousel._getInstance($carousel[0])
-    var spy = sinon.spy(carousel, 'prev')
-
-    $carousel.one('slid.bs.carousel', function () {
-      assert.ok(true, 'slid event fired')
-      assert.ok($item.hasClass('active'))
-      assert.ok(spy.called)
-      $styles.remove()
-      delete document.documentElement.ontouchstart
-      done()
-    })
-
-    Simulator.gestures.swipe($carousel[0], {
-      deltaX: 300,
-      deltaY: 0
-    })
-  })
-
-  QUnit.test('should allow swiperight and call prev with touch events', function (assert) {
-    Simulator.setType('touch')
-    clearPointerEvents()
-
-    assert.expect(3)
-    var done = assert.async()
-    document.documentElement.ontouchstart = $.noop
-
-    var carouselHTML =
-        '<div class="carousel" data-interval="false">' +
-        '  <div class="carousel-inner">' +
-        '    <div id="item" class="carousel-item">' +
-        '      <img alt="">' +
-        '    </div>' +
-        '    <div class="carousel-item active">' +
-        '      <img alt="">' +
-        '    </div>' +
-        '  </div>' +
-        '</div>'
-
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-    var $item = $('#item')
-    $carousel.bootstrapCarousel()
-    var carousel = Carousel._getInstance($carousel[0])
-    var spy = sinon.spy(carousel, 'prev')
-
-    $carousel.one('slid.bs.carousel', function () {
-      assert.ok(true, 'slid event fired')
-      assert.ok($item.hasClass('active'))
-      assert.ok(spy.called)
-      delete document.documentElement.ontouchstart
-      restorePointerEvents()
-      done()
-    })
-
-    Simulator.gestures.swipe($carousel[0], {
-      deltaX: 300,
-      deltaY: 0
-    })
-  })
-
-  QUnit.test('should allow swipeleft and call next with pointer events', function (assert) {
-    if (!supportPointerEvent) {
-      assert.expect(0)
-      return
-    }
-
-    document.documentElement.ontouchstart = $.noop
-    assert.expect(4)
-    Simulator.setType('pointer')
-
-    var $styles = $(stylesCarousel).appendTo('head')
-    var done = assert.async()
-
-    var carouselHTML =
-        '<div class="carousel" data-interval="false">' +
-        '  <div class="carousel-inner">' +
-        '    <div id="item" class="carousel-item active">' +
-        '      <img alt="">' +
-        '    </div>' +
-        '    <div class="carousel-item">' +
-        '      <img alt="">' +
-        '    </div>' +
-        '  </div>' +
-        '</div>'
-
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-    var $item = $('#item')
-    $carousel.bootstrapCarousel()
-    var carousel = Carousel._getInstance($carousel[0])
-    var spy = sinon.spy(carousel, 'next')
-
-    $carousel.one('slid.bs.carousel', function () {
-      assert.ok(true, 'slid event fired')
-      assert.ok(!$item.hasClass('active'))
-      assert.ok(spy.called)
-      assert.strictEqual(carousel.touchDeltaX, 0)
-      $styles.remove()
-      delete document.documentElement.ontouchstart
-      done()
-    })
-
-    Simulator.gestures.swipe($carousel[0], {
-      pos: [300, 10],
-      deltaX: -300,
-      deltaY: 0
-    })
-  })
-
-  QUnit.test('should allow swipeleft and call next with touch events', function (assert) {
-    assert.expect(4)
-    clearPointerEvents()
-    Simulator.setType('touch')
-    document.documentElement.ontouchstart = $.noop
-
-    var done = assert.async()
-
-    var carouselHTML =
-        '<div class="carousel" data-interval="false">' +
-        '  <div class="carousel-inner">' +
-        '    <div id="item" class="carousel-item active">' +
-        '      <img alt="">' +
-        '    </div>' +
-        '    <div class="carousel-item">' +
-        '      <img alt="">' +
-        '    </div>' +
-        '  </div>' +
-        '</div>'
-
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-    var $item = $('#item')
-    $carousel.bootstrapCarousel()
-    var carousel = Carousel._getInstance($carousel[0])
-    var spy = sinon.spy(carousel, 'next')
-
-    $carousel.one('slid.bs.carousel', function () {
-      assert.ok(true, 'slid event fired')
-      assert.ok(!$item.hasClass('active'))
-      assert.ok(spy.called)
-      assert.strictEqual(carousel.touchDeltaX, 0)
-      restorePointerEvents()
-      delete document.documentElement.ontouchstart
-      done()
-    })
-
-    Simulator.gestures.swipe($carousel[0], {
-      pos: [300, 10],
-      deltaX: -300,
-      deltaY: 0
-    })
-  })
-
-  QUnit.test('should not allow pinch with touch events', function (assert) {
-    assert.expect(0)
-    clearPointerEvents()
-
-    Simulator.setType('touch')
-    var done = assert.async()
-    document.documentElement.ontouchstart = $.noop
-
-    var carouselHTML = '<div class="carousel" data-interval="false"></div>'
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-    $carousel.bootstrapCarousel()
-
-    Simulator.gestures.swipe($carousel[0], {
-      pos: [300, 10],
-      deltaX: -300,
-      deltaY: 0,
-      touches: 2
-    }, function () {
-      restorePointerEvents()
-      delete document.documentElement.ontouchstart
-      done()
-    })
-  })
-
-  QUnit.test('should not call _slide if the carousel is sliding', function (assert) {
-    assert.expect(1)
-
-    var carouselHTML = '<div class="carousel" data-interval="false"></div>'
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-    $carousel.bootstrapCarousel()
-
-    var carousel = Carousel._getInstance($carousel[0])
-
-    var spy = sinon.spy(carousel, '_slide')
-
-    carousel._isSliding = true
-
-    carousel.next()
-
-    assert.strictEqual(spy.called, false)
-  })
-
-  QUnit.test('should call next when the page is visible', function (assert) {
-    assert.expect(1)
-
-    var carouselHTML = '<div class="carousel" data-interval="false"></div>'
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-    $carousel.bootstrapCarousel()
-
-    var carousel = Carousel._getInstance($carousel[0])
-
-    var spy = sinon.spy(carousel, 'next')
-    var sandbox = sinon.createSandbox()
-
-    sandbox.replaceGetter(document, 'hidden', function () {
-      return false
-    })
-    sandbox.stub($carousel, 'is').returns(true)
-    sandbox.stub($carousel, 'css').returns('block')
-
-    carousel.nextWhenVisible()
-
-    assert.strictEqual(spy.called, true)
-    sandbox.restore()
-  })
-
-  QUnit.test('should not cycle when there is no attribute data-ride', function (assert) {
-    assert.expect(1)
-
-    var spy = sinon.spy(Carousel.prototype, 'cycle')
-
-    var carouselHTML = '<div class="carousel"></div>'
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-    $carousel.bootstrapCarousel()
-
-    assert.strictEqual(spy.called, false)
-    spy.restore()
-  })
-
-  QUnit.test('should cycle when there is data-ride attribute', function (assert) {
-    assert.expect(1)
-
-    var spy = sinon.spy(Carousel.prototype, 'cycle')
-
-    var carouselHTML = '<div class="carousel" data-ride="carousel"></div>'
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-    $carousel.bootstrapCarousel()
-
-    assert.strictEqual(spy.called, true)
-    spy.restore()
-  })
-
-  QUnit.test('should init carousels with data-ride on load event', function (assert) {
-    assert.expect(1)
-
-    var done = assert.async()
-    var spy = sinon.spy(Carousel, '_carouselInterface')
-
-    var carouselHTML = '<div class="carousel" data-ride="carousel"></div>'
-    var $carousel = $(carouselHTML)
-    $carousel.appendTo('#qunit-fixture')
-
-    window.dispatchEvent(new Event('load'))
-
-    setTimeout(function () {
-      assert.strictEqual(spy.called, true)
-      spy.restore()
-      done()
-    }, 5)
-  })
-
-  QUnit.test('should not add touch event listeners when touch option set to false', function (assert) {
-    assert.expect(1)
-
-    var spy = sinon.spy(Carousel.prototype, '_addTouchEventListeners')
-    var $carousel = $('<div class="carousel" data-ride="carousel" data-touch="false"></div>')
-
-    $carousel.appendTo('#qunit-fixture')
-    $carousel.bootstrapCarousel()
-
-    assert.strictEqual(spy.called, false)
-    spy.restore()
-  })
-})