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site-web-le-plus-beau-des-v.../bootstrap/js/tests/unit/carousel.spec.js

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JavaScript
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Re add bootstrap
2024-05-01 12:45:11 +02:00
import Carousel from '../../src/carousel.js'
import EventHandler from '../../src/dom/event-handler.js'
import { isRTL, noop } from '../../src/util/index.js'
import Swipe from '../../src/util/swipe.js'
import {
clearFixture, createEvent, getFixture, jQueryMock
} from '../helpers/fixture.js'
describe('Carousel', () => {
const { Simulator, PointerEvent } = window
const originWinPointerEvent = PointerEvent
const supportPointerEvent = Boolean(PointerEvent)
const cssStyleCarousel = '.carousel.pointer-event { touch-action: none; }'
const stylesCarousel = document.createElement('style')
stylesCarousel.type = 'text/css'
stylesCarousel.append(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('DATA_KEY', () => {
it('should return plugin data key', () => {
expect(Carousel.DATA_KEY).toEqual('bs.carousel')
})
})
describe('constructor', () => {
it('should take care of element either passed as a CSS selector or DOM element', () => {
fixtureEl.innerHTML = '<div id="myCarousel" class="carousel slide"></div>'
const carouselEl = fixtureEl.querySelector('#myCarousel')
const carouselBySelector = new Carousel('#myCarousel')
const carouselByElement = new Carousel(carouselEl)
expect(carouselBySelector._element).toEqual(carouselEl)
expect(carouselByElement._element).toEqual(carouselEl)
})
it('should start cycling if `ride`===`carousel`', () => {
fixtureEl.innerHTML = '<div id="myCarousel" class="carousel slide" data-bs-ride="carousel"></div>'
const carousel = new Carousel('#myCarousel')
expect(carousel._interval).not.toBeNull()
})
it('should not start cycling if `ride`!==`carousel`', () => {
fixtureEl.innerHTML = '<div id="myCarousel" class="carousel slide" data-bs-ride="true"></div>'
const carousel = new Carousel('#myCarousel')
expect(carousel._interval).toBeNull()
})
it('should go to next item if right arrow key is pressed', () => {
return new Promise(resolve => {
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
})
const spy = spyOn(carousel, '_keydown').and.callThrough()
carouselEl.addEventListener('slid.bs.carousel', () => {
expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item2'))
expect(spy).toHaveBeenCalled()
resolve()
})
const keydown = createEvent('keydown')
keydown.key = 'ArrowRight'
carouselEl.dispatchEvent(keydown)
})
})
it('should ignore keyboard events if data-bs-keyboard=false', () => {
fixtureEl.innerHTML = [
'<div id="myCarousel" class="carousel slide" data-bs-keyboard="false">',
' <div class="carousel-inner">',
' <div class="carousel-item active">item 1</div>',
' <div id="item2" class="carousel-item">item 2</div>',
' </div>',
'</div>'
].join('')
const spy = spyOn(EventHandler, 'trigger').and.callThrough()
const carouselEl = fixtureEl.querySelector('#myCarousel')
// eslint-disable-next-line no-new
new Carousel('#myCarousel')
expect(spy).not.toHaveBeenCalledWith(carouselEl, 'keydown.bs.carousel', jasmine.any(Function))
})
it('should ignore mouse events if data-bs-pause=false', () => {
fixtureEl.innerHTML = [
'<div id="myCarousel" class="carousel slide" data-bs-pause="false">',
' <div class="carousel-inner">',
' <div class="carousel-item active">item 1</div>',
' <div id="item2" class="carousel-item">item 2</div>',
' </div>',
'</div>'
].join('')
const spy = spyOn(EventHandler, 'trigger').and.callThrough()
const carouselEl = fixtureEl.querySelector('#myCarousel')
// eslint-disable-next-line no-new
new Carousel('#myCarousel')
expect(spy).not.toHaveBeenCalledWith(carouselEl, 'hover.bs.carousel', jasmine.any(Function))
})
it('should go to previous item if left arrow key is pressed', () => {
return new Promise(resolve => {
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
})
const spy = spyOn(carousel, '_keydown').and.callThrough()
carouselEl.addEventListener('slid.bs.carousel', () => {
expect(fixtureEl.querySelector('.active')).toEqual(fixtureEl.querySelector('#item1'))
expect(spy).toHaveBeenCalled()
resolve()
})
const keydown = createEvent('keydown')
keydown.key = 'ArrowLeft'
carouselEl.dispatchEvent(keydown)
})
})
it('should not prevent keydown if key is not ARROW_LEFT or ARROW_RIGHT', () => {
return new Promise(resolve => {
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
})
const spy = spyOn(carousel, '_keydown').and.callThrough()
carouselEl.addEventListener('keydown', event => {
expect(spy).toHaveBeenCalled()
expect(event.defaultPrevented).toBeFalse()
resolve()
})
const keydown = createEvent('keydown')
keydown.key = 'ArrowDown'
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 spySlide = spyOn(carousel, '_slide')
const keydown = createEvent('keydown', { bubbles: true, cancelable: true })
keydown.key = 'ArrowRight'
Object.defineProperty(keydown, 'target', {
value: input,
writable: true,
configurable: true
})
input.dispatchEvent(keydown)
expect(spyKeydown).toHaveBeenCalled()
expect(spySlide).not.toHaveBeenCalled()
spyKeydown.calls.reset()
spySlide.calls.reset()
Object.defineProperty(keydown, 'target', {
value: textarea
})
textarea.dispatchEvent(keydown)
expect(spyKeydown).toHaveBeenCalled()
expect(spySlide).not.toHaveBeenCalled()
})
it('should not slide if arrow key is pressed and carousel is sliding', () => {
fixtureEl.innerHTML = '<div></div>'
const carouselEl = fixtureEl.querySelector('div')
const carousel = new Carousel(carouselEl, {})
const spy = spyOn(EventHandler, 'trigger')
carousel._isSliding = true
for (const key of ['ArrowLeft', 'ArrowRight']) {
const keydown = createEvent('keydown')
keydown.key = key
carouselEl.dispatchEvent(keydown)
}
expect(spy).not.toHaveBeenCalled()
})
it('should wrap around from end to start when wrap option is true', () => {
return new Promise(resolve => {
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 = () => carouselEl.querySelector('.carousel-item.active').getAttribute('id')
carouselEl.addEventListener('slid.bs.carousel', event => {
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(event.from + 1).toEqual(3)
resolve()
}
})
carousel.next()
})
})
it('should stay at the start when the prev method is called and wrap is false', () => {
return new Promise((resolve, reject) => {
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', () => {
reject(new Error('carousel slid when it should not have slid'))
})
carousel.prev()
setTimeout(() => {
expect(firstElement).toHaveClass('active')
resolve()
}, 10)
})
})
it('should not add touch event listeners if touch = false', () => {
fixtureEl.innerHTML = '<div></div>'
const carouselEl = fixtureEl.querySelector('div')
const spy = spyOn(Carousel.prototype, '_addTouchEventListeners')
const carousel = new Carousel(carouselEl, {
touch: false
})
expect(spy).not.toHaveBeenCalled()
expect(carousel._swipeHelper).toBeNull()
})
it('should not add touch event listeners if touch supported = false', () => {
fixtureEl.innerHTML = '<div></div>'
const carouselEl = fixtureEl.querySelector('div')
spyOn(Swipe, 'isSupported').and.returnValue(false)
const carousel = new Carousel(carouselEl)
EventHandler.off(carouselEl, Carousel.EVENT_KEY)
const spy = spyOn(carousel, '_addTouchEventListeners')
carousel._addEventListeners()
expect(spy).not.toHaveBeenCalled()
expect(carousel._swipeHelper).toBeNull()
})
it('should add touch event listeners by default', () => {
fixtureEl.innerHTML = '<div></div>'
const carouselEl = fixtureEl.querySelector('div')
spyOn(Carousel.prototype, '_addTouchEventListeners')
// Headless browser does not support touch events, so need to fake it
// to test that touch events are add properly.
document.documentElement.ontouchstart = noop
const carousel = new Carousel(carouselEl)
expect(carousel._addTouchEventListeners).toHaveBeenCalled()
})
it('should allow swiperight and call _slide (prev) with pointer events', () => {
return new Promise(resolve => {
if (!supportPointerEvent) {
expect().nothing()
resolve()
return
}
document.documentElement.ontouchstart = noop
document.head.append(stylesCarousel)
Simulator.setType('pointer')
fixtureEl.innerHTML = [
'<div class="carousel">',
' <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)
const spy = spyOn(carousel, '_slide').and.callThrough()
carouselEl.addEventListener('slid.bs.carousel', event => {
expect(item).toHaveClass('active')
expect(spy).toHaveBeenCalledWith('prev')
expect(event.direction).toEqual('right')
stylesCarousel.remove()
delete document.documentElement.ontouchstart
resolve()
})
Simulator.gestures.swipe(carouselEl, {
deltaX: 300,
deltaY: 0
})
})
})
it('should allow swipeleft and call next with pointer events', () => {
return new Promise(resolve => {
if (!supportPointerEvent) {
expect().nothing()
resolve()
return
}
document.documentElement.ontouchstart = noop
document.head.append(stylesCarousel)
Simulator.setType('pointer')
fixtureEl.innerHTML = [
'<div class="carousel">',
' <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)
const spy = spyOn(carousel, '_slide').and.callThrough()
carouselEl.addEventListener('slid.bs.carousel', event => {
expect(item).not.toHaveClass('active')
expect(spy).toHaveBeenCalledWith('next')
expect(event.direction).toEqual('left')
stylesCarousel.remove()
delete document.documentElement.ontouchstart
resolve()
})
Simulator.gestures.swipe(carouselEl, {
pos: [300, 10],
deltaX: -300,
deltaY: 0
})
})
})
it('should allow swiperight and call _slide (prev) with touch events', () => {
return new Promise(resolve => {
Simulator.setType('touch')
clearPointerEvents()
document.documentElement.ontouchstart = noop
fixtureEl.innerHTML = [
'<div class="carousel">',
' <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)
const spy = spyOn(carousel, '_slide').and.callThrough()
carouselEl.addEventListener('slid.bs.carousel', event => {
expect(item).toHaveClass('active')
expect(spy).toHaveBeenCalledWith('prev')
expect(event.direction).toEqual('right')
delete document.documentElement.ontouchstart
restorePointerEvents()
resolve()
})
Simulator.gestures.swipe(carouselEl, {
deltaX: 300,
deltaY: 0
})
})
})
it('should allow swipeleft and call _slide (next) with touch events', () => {
return new Promise(resolve => {
Simulator.setType('touch')
clearPointerEvents()
document.documentElement.ontouchstart = noop
fixtureEl.innerHTML = [
'<div class="carousel">',
' <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)
const spy = spyOn(carousel, '_slide').and.callThrough()
carouselEl.addEventListener('slid.bs.carousel', event => {
expect(item).not.toHaveClass('active')
expect(spy).toHaveBeenCalledWith('next')
expect(event.direction).toEqual('left')
delete document.documentElement.ontouchstart
restorePointerEvents()
resolve()
})
Simulator.gestures.swipe(carouselEl, {
pos: [300, 10],
deltaX: -300,
deltaY: 0
})
})
})
it('should not slide when swiping and carousel is sliding', () => {
return new Promise(resolve => {
Simulator.setType('touch')
clearPointerEvents()
document.documentElement.ontouchstart = noop
fixtureEl.innerHTML = [
'<div class="carousel">',
' <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 carousel = new Carousel(carouselEl)
carousel._isSliding = true
const spy = spyOn(EventHandler, 'trigger')
Simulator.gestures.swipe(carouselEl, {
deltaX: 300,
deltaY: 0
})
Simulator.gestures.swipe(carouselEl, {
pos: [300, 10],
deltaX: -300,
deltaY: 0
})
setTimeout(() => {
expect(spy).not.toHaveBeenCalled()
delete document.documentElement.ontouchstart
restorePointerEvents()
resolve()
}, 300)
})
})
it('should not allow pinch with touch events', () => {
return new Promise(resolve => {
Simulator.setType('touch')
clearPointerEvents()
document.documentElement.ontouchstart = noop
fixtureEl.innerHTML = '<div class="carousel"></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._swipeHelper._deltaX).toEqual(0)
resolve()
})
})
})
it('should call pause method on mouse over with pause equal to hover', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = '<div class="carousel"></div>'
const carouselEl = fixtureEl.querySelector('.carousel')
const carousel = new Carousel(carouselEl)
const spy = spyOn(carousel, 'pause')
const mouseOverEvent = createEvent('mouseover')
carouselEl.dispatchEvent(mouseOverEvent)
setTimeout(() => {
expect(spy).toHaveBeenCalled()
resolve()
}, 10)
})
})
it('should call `maybeEnableCycle` on mouse out with pause equal to hover', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = '<div class="carousel" data-bs-ride="true"></div>'
const carouselEl = fixtureEl.querySelector('.carousel')
const carousel = new Carousel(carouselEl)
const spyEnable = spyOn(carousel, '_maybeEnableCycle').and.callThrough()
const spyCycle = spyOn(carousel, 'cycle')
const mouseOutEvent = createEvent('mouseout')
carouselEl.dispatchEvent(mouseOutEvent)
setTimeout(() => {
expect(spyEnable).toHaveBeenCalled()
expect(spyCycle).toHaveBeenCalled()
resolve()
}, 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, {})
const spy = spyOn(EventHandler, 'trigger')
carousel._isSliding = true
carousel.next()
expect(spy).not.toHaveBeenCalled()
})
it('should not fire slid when slide is prevented', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = '<div></div>'
const carouselEl = fixtureEl.querySelector('div')
const carousel = new Carousel(carouselEl, {})
let slidEvent = false
const doneTest = () => {
setTimeout(() => {
expect(slidEvent).toBeFalse()
resolve()
}, 20)
}
carouselEl.addEventListener('slide.bs.carousel', event => {
event.preventDefault()
doneTest()
})
carouselEl.addEventListener('slid.bs.carousel', () => {
slidEvent = true
})
carousel.next()
})
})
it('should fire slide event with: direction, relatedTarget, from and to', () => {
return new Promise(resolve => {
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 = event => {
expect(event.direction).toEqual('left')
expect(event.relatedTarget).toHaveClass('carousel-item')
expect(event.from).toEqual(0)
expect(event.to).toEqual(1)
carouselEl.removeEventListener('slide.bs.carousel', onSlide)
carouselEl.addEventListener('slide.bs.carousel', onSlide2)
carousel.prev()
}
const onSlide2 = event => {
expect(event.direction).toEqual('right')
resolve()
}
carouselEl.addEventListener('slide.bs.carousel', onSlide)
carousel.next()
})
})
it('should fire slid event with: direction, relatedTarget, from and to', () => {
return new Promise(resolve => {
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 = event => {
expect(event.direction).toEqual('left')
expect(event.relatedTarget).toHaveClass('carousel-item')
expect(event.from).toEqual(0)
expect(event.to).toEqual(1)
carouselEl.removeEventListener('slid.bs.carousel', onSlid)
carouselEl.addEventListener('slid.bs.carousel', onSlid2)
carousel.prev()
}
const onSlid2 = event => {
expect(event.direction).toEqual('right')
resolve()
}
carouselEl.addEventListener('slid.bs.carousel', onSlid)
carousel.next()
})
})
it('should update the active element to the next item before sliding', () => {
fixtureEl.innerHTML = [
'<div id="myCarousel" class="carousel slide">',
' <div class="carousel-inner">',
' <div class="carousel-item active">item 1</div>',
' <div id="secondItem" class="carousel-item">item 2</div>',
' <div class="carousel-item">item 3</div>',
' </div>',
'</div>'
].join('')
const carouselEl = fixtureEl.querySelector('#myCarousel')
const secondItemEl = fixtureEl.querySelector('#secondItem')
const carousel = new Carousel(carouselEl)
carousel.next()
expect(carousel._activeElement).toEqual(secondItemEl)
})
it('should continue cycling if it was already', () => {
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>',
'</div>'
].join('')
const carouselEl = fixtureEl.querySelector('#myCarousel')
const carousel = new Carousel(carouselEl)
const spy = spyOn(carousel, 'cycle')
carousel.next()
expect(spy).not.toHaveBeenCalled()
carousel.cycle()
carousel.next()
expect(spy).toHaveBeenCalledTimes(1)
})
it('should update indicators if present', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div id="myCarousel" class="carousel slide">',
' <div class="carousel-indicators">',
' <button type="button" id="firstIndicator" data-bs-target="myCarousel" data-bs-slide-to="0" class="active" aria-current="true" aria-label="Slide 1"></button>',
' <button type="button" id="secondIndicator" data-bs-target="myCarousel" data-bs-slide-to="1" aria-label="Slide 2"></button>',
' <button type="button" data-bs-target="myCarousel" data-bs-slide-to="2" aria-label="Slide 3"></button>',
' </div>',
' <div class="carousel-inner">',
' <div class="carousel-item active">item 1</div>',
' <div class="carousel-item" data-bs-interval="7">item 2</div>',
' <div class="carousel-item">item 3</div>',
' </div>',
'</div>'
].join('')
const carouselEl = fixtureEl.querySelector('#myCarousel')
const firstIndicator = fixtureEl.querySelector('#firstIndicator')
const secondIndicator = fixtureEl.querySelector('#secondIndicator')
const carousel = new Carousel(carouselEl)
carouselEl.addEventListener('slid.bs.carousel', () => {
expect(firstIndicator).not.toHaveClass('active')
expect(firstIndicator.hasAttribute('aria-current')).toBeFalse()
expect(secondIndicator).toHaveClass('active')
expect(secondIndicator.getAttribute('aria-current')).toEqual('true')
resolve()
})
carousel.next()
})
})
it('should call next()/prev() instance methods when clicking the respective direction buttons', () => {
fixtureEl.innerHTML = [
'<div id="carousel" 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>',
' <button class="carousel-control-prev" type="button" data-bs-target="#carousel" data-bs-slide="prev"></button>',
' <button class="carousel-control-next" type="button" data-bs-target="#carousel" data-bs-slide="next"></button>',
'</div>'
].join('')
const carouselEl = fixtureEl.querySelector('#carousel')
const prevBtnEl = fixtureEl.querySelector('.carousel-control-prev')
const nextBtnEl = fixtureEl.querySelector('.carousel-control-next')
const carousel = new Carousel(carouselEl)
const nextSpy = spyOn(carousel, 'next')
const prevSpy = spyOn(carousel, 'prev')
const spyEnable = spyOn(carousel, '_maybeEnableCycle')
nextBtnEl.click()
prevBtnEl.click()
expect(nextSpy).toHaveBeenCalled()
expect(prevSpy).toHaveBeenCalled()
expect(spyEnable).toHaveBeenCalled()
})
})
describe('nextWhenVisible', () => {
it('should not call next when the page is not visible', () => {
fixtureEl.innerHTML = [
'<div style="display: none;">',
' <div class="carousel"></div>',
'</div>'
].join('')
const carouselEl = fixtureEl.querySelector('.carousel')
const carousel = new Carousel(carouselEl)
const spy = spyOn(carousel, 'next')
carousel.nextWhenVisible()
expect(spy).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, {})
const spy = spyOn(EventHandler, 'trigger')
carousel._isSliding = true
carousel.prev()
expect(spy).not.toHaveBeenCalled()
})
})
describe('pause', () => {
it('should trigger transitionend if the carousel have carousel-item-next or carousel-item-prev class, cause is sliding', () => {
return new Promise(resolve => {
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)
const spy = spyOn(carousel, '_clearInterval')
carouselEl.addEventListener('transitionend', () => {
expect(spy).toHaveBeenCalled()
resolve()
})
carousel._slide('next')
carousel.pause()
})
})
})
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)
const spy = spyOn(window, 'setInterval').and.callThrough()
carousel.cycle()
expect(spy).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(noop, 10)
const spySet = spyOn(window, 'setInterval').and.callThrough()
const spyClear = spyOn(window, 'clearInterval').and.callThrough()
carousel.cycle()
expect(spySet).toHaveBeenCalled()
expect(spyClear).toHaveBeenCalled()
})
it('should get interval from data attribute on the active item element', () => {
fixtureEl.innerHTML = [
'<div id="myCarousel" class="carousel slide">',
' <div class="carousel-inner">',
' <div class="carousel-item active" data-bs-interval="7">item 1</div>',
' <div id="secondItem" class="carousel-item" data-bs-interval="9385">item 2</div>',
' <div class="carousel-item">item 3</div>',
' </div>',
'</div>'
].join('')
const carouselEl = fixtureEl.querySelector('#myCarousel')
const secondItemEl = fixtureEl.querySelector('#secondItem')
const carousel = new Carousel(carouselEl, {
interval: 1814
})
expect(carousel._config.interval).toEqual(1814)
carousel.cycle()
expect(carousel._config.interval).toEqual(7)
carousel._activeElement = secondItemEl
carousel.cycle()
expect(carousel._config.interval).toEqual(9385)
})
})
describe('to', () => {
it('should go directly to the provided index', () => {
return new Promise(resolve => {
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'))
resolve()
})
})
})
it('should return to a previous slide if the provided index is lower than the current', () => {
return new Promise(resolve => {
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'))
resolve()
})
})
})
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-bs-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 not continue if 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-bs-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(0)
expect(spy).not.toHaveBeenCalled()
})
it('should wait before performing to if a slide is sliding', () => {
return new Promise(resolve => {
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-bs-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 spyOne = spyOn(EventHandler, 'one').and.callThrough()
const spySlide = spyOn(carousel, '_slide')
carousel._isSliding = true
carousel.to(1)
expect(spySlide).not.toHaveBeenCalled()
expect(spyOne).toHaveBeenCalled()
const spyTo = spyOn(carousel, 'to')
EventHandler.trigger(carouselEl, 'slid.bs.carousel')
setTimeout(() => {
expect(spyTo).toHaveBeenCalledWith(1)
resolve()
})
})
})
})
describe('rtl function', () => {
it('"_directionToOrder" and "_orderToDirection" must return the right results', () => {
fixtureEl.innerHTML = '<div></div>'
const carouselEl = fixtureEl.querySelector('div')
const carousel = new Carousel(carouselEl, {})
expect(carousel._directionToOrder('left')).toEqual('next')
expect(carousel._directionToOrder('right')).toEqual('prev')
expect(carousel._orderToDirection('next')).toEqual('left')
expect(carousel._orderToDirection('prev')).toEqual('right')
})
it('"_directionToOrder" and "_orderToDirection" must return the right results when rtl=true', () => {
document.documentElement.dir = 'rtl'
fixtureEl.innerHTML = '<div></div>'
const carouselEl = fixtureEl.querySelector('div')
const carousel = new Carousel(carouselEl, {})
expect(isRTL()).toBeTrue()
expect(carousel._directionToOrder('left')).toEqual('prev')
expect(carousel._directionToOrder('right')).toEqual('next')
expect(carousel._orderToDirection('next')).toEqual('right')
expect(carousel._orderToDirection('prev')).toEqual('left')
document.documentElement.dir = 'ltl'
})
it('"_slide" has to call _directionToOrder and "_orderToDirection"', () => {
fixtureEl.innerHTML = '<div></div>'
const carouselEl = fixtureEl.querySelector('div')
const carousel = new Carousel(carouselEl, {})
const spy = spyOn(carousel, '_orderToDirection').and.callThrough()
carousel._slide(carousel._directionToOrder('left'))
expect(spy).toHaveBeenCalledWith('next')
carousel._slide(carousel._directionToOrder('right'))
expect(spy).toHaveBeenCalledWith('prev')
})
it('"_slide" has to call "_directionToOrder" and "_orderToDirection" when rtl=true', () => {
document.documentElement.dir = 'rtl'
fixtureEl.innerHTML = '<div></div>'
const carouselEl = fixtureEl.querySelector('div')
const carousel = new Carousel(carouselEl, {})
const spy = spyOn(carousel, '_orderToDirection').and.callThrough()
carousel._slide(carousel._directionToOrder('left'))
expect(spy).toHaveBeenCalledWith('prev')
carousel._slide(carousel._directionToOrder('right'))
expect(spy).toHaveBeenCalledWith('next')
document.documentElement.dir = 'ltl'
})
})
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-bs-interval="7">item 2</div>',
' <div class="carousel-item">item 3</div>',
' </div>',
'</div>'
].join('')
const carouselEl = fixtureEl.querySelector('#myCarousel')
const addEventSpy = spyOn(carouselEl, 'addEventListener').and.callThrough()
const removeEventSpy = spyOn(EventHandler, 'off').and.callThrough()
// Headless browser does not support touch events, so need to fake it
// to test that touch events are add/removed properly.
document.documentElement.ontouchstart = noop
const carousel = new Carousel(carouselEl)
const swipeHelperSpy = spyOn(carousel._swipeHelper, 'dispose').and.callThrough()
const expectedArgs = [
['keydown', jasmine.any(Function), jasmine.any(Boolean)],
['mouseover', jasmine.any(Function), jasmine.any(Boolean)],
['mouseout', jasmine.any(Function), jasmine.any(Boolean)],
...(carousel._swipeHelper._supportPointerEvents ?
[
['pointerdown', jasmine.any(Function), jasmine.any(Boolean)],
['pointerup', jasmine.any(Function), jasmine.any(Boolean)]
] :
[
['touchstart', jasmine.any(Function), jasmine.any(Boolean)],
['touchmove', jasmine.any(Function), jasmine.any(Boolean)],
['touchend', jasmine.any(Function), jasmine.any(Boolean)]
])
]
expect(addEventSpy.calls.allArgs()).toEqual(expectedArgs)
carousel.dispose()
expect(carousel._swipeHelper).toBeNull()
expect(removeEventSpy).toHaveBeenCalledWith(carouselEl, Carousel.EVENT_KEY)
expect(swipeHelperSpy).toHaveBeenCalled()
delete document.documentElement.ontouchstart
})
})
describe('getInstance', () => {
it('should return carousel instance', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const carousel = new Carousel(div)
expect(Carousel.getInstance(div)).toEqual(carousel)
expect(Carousel.getInstance(div)).toBeInstanceOf(Carousel)
})
it('should return null when there is no carousel instance', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
expect(Carousel.getInstance(div)).toBeNull()
})
})
describe('getOrCreateInstance', () => {
it('should return carousel instance', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const carousel = new Carousel(div)
expect(Carousel.getOrCreateInstance(div)).toEqual(carousel)
expect(Carousel.getInstance(div)).toEqual(Carousel.getOrCreateInstance(div, {}))
expect(Carousel.getOrCreateInstance(div)).toBeInstanceOf(Carousel)
})
it('should return new instance when there is no carousel instance', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
expect(Carousel.getInstance(div)).toBeNull()
expect(Carousel.getOrCreateInstance(div)).toBeInstanceOf(Carousel)
})
it('should return new instance when there is no carousel instance with given configuration', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
expect(Carousel.getInstance(div)).toBeNull()
const carousel = Carousel.getOrCreateInstance(div, {
interval: 1
})
expect(carousel).toBeInstanceOf(Carousel)
expect(carousel._config.interval).toEqual(1)
})
it('should return the instance when exists without given configuration', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const carousel = new Carousel(div, {
interval: 1
})
expect(Carousel.getInstance(div)).toEqual(carousel)
const carousel2 = Carousel.getOrCreateInstance(div, {
interval: 2
})
expect(carousel).toBeInstanceOf(Carousel)
expect(carousel2).toEqual(carousel)
expect(carousel2._config.interval).toEqual(1)
})
})
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)).not.toBeNull()
})
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
const spy = spyOn(carousel, 'to')
jQueryMock.fn.carousel = Carousel.jQueryInterface
jQueryMock.elements = [div]
jQueryMock.fn.carousel.call(jQueryMock, slideTo)
expect(spy).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]
expect(() => {
jQueryMock.fn.carousel.call(jQueryMock, action)
}).toThrowError(TypeError, `No method named "${action}"`)
})
})
describe('data-api', () => {
it('should init carousels with data-bs-ride="carousel" on load', () => {
fixtureEl.innerHTML = '<div data-bs-ride="carousel"></div>'
const carouselEl = fixtureEl.querySelector('div')
const loadEvent = createEvent('load')
window.dispatchEvent(loadEvent)
const carousel = Carousel.getInstance(carouselEl)
expect(carousel._interval).not.toBeNull()
})
it('should create carousel and go to the next slide on click (with real button controls)', () => {
return new Promise(resolve => {
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>',
' <button class="carousel-control-prev" data-bs-target="#myCarousel" type="button" data-bs-slide="prev"></button>',
' <button id="next" class="carousel-control-next" data-bs-target="#myCarousel" type="button" data-bs-slide="next"></button>',
'</div>'
].join('')
const next = fixtureEl.querySelector('#next')
const item2 = fixtureEl.querySelector('#item2')
next.click()
setTimeout(() => {
expect(item2).toHaveClass('active')
resolve()
}, 10)
})
})
it('should create carousel and go to the next slide on click (using links as controls)', () => {
return new Promise(resolve => {
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>',
' <a class="carousel-control-prev" href="#myCarousel" role="button" data-bs-slide="prev"></a>',
' <a id="next" class="carousel-control-next" href="#myCarousel" role="button" data-bs-slide="next"></a>',
'</div>'
].join('')
const next = fixtureEl.querySelector('#next')
const item2 = fixtureEl.querySelector('#item2')
next.click()
setTimeout(() => {
expect(item2).toHaveClass('active')
resolve()
}, 10)
})
})
it('should create carousel and go to the next slide on click with data-bs-slide-to', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div id="myCarousel" class="carousel slide" data-bs-ride="true">',
' <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-bs-target="#myCarousel" data-bs-slide-to="1"></div>',
'</div>'
].join('')
const next = fixtureEl.querySelector('#next')
const item2 = fixtureEl.querySelector('#item2')
next.click()
setTimeout(() => {
expect(item2).toHaveClass('active')
expect(Carousel.getInstance('#myCarousel')._interval).not.toBeNull()
resolve()
}, 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>',
' <button class="carousel-control-prev" data-bs-target="#myCarousel" type="button" data-bs-slide="prev"></button>',
' <button id="next" class="carousel-control-next" type="button" data-bs-slide="next"></button>',
'</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>',
' <button class="carousel-control-prev" data-bs-target="#myCarousel" type="button" data-bs-slide="prev"></button>',
' <button id="next" class="carousel-control-next" data-bs-target="#myCarousel" type="button" data-bs-slide="next"></button>',
'</div>'
].join('')
const next = fixtureEl.querySelector('#next')
next.click()
expect().nothing()
})
})
})
Reference in a new issue Copy permalink