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7399b13052
Bootstrap/js/tests/unit/dropdown.spec.js
GeoSot 597c402314
Dropdown: fix case with invalid markup (#37190) 
This fixes a backward incompatible change in v5.2.1 where `.drodown-toggle` isn't present in the markup.
2022-09-27 10:39:11 +03:00

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import Dropdown from '../../src/dropdown'
import EventHandler from '../../src/dom/event-handler'
import { noop } from '../../src/util/index'
import { clearFixture, createEvent, getFixture, jQueryMock } from '../helpers/fixture'
describe('Dropdown', () => {
let fixtureEl
beforeAll(() => {
fixtureEl = getFixture()
})
afterEach(() => {
clearFixture()
})
describe('VERSION', () => {
it('should return plugin version', () => {
expect(Dropdown.VERSION).toEqual(jasmine.any(String))
})
})
describe('Default', () => {
it('should return plugin default config', () => {
expect(Dropdown.Default).toEqual(jasmine.any(Object))
})
})
describe('DefaultType', () => {
it('should return plugin default type config', () => {
expect(Dropdown.DefaultType).toEqual(jasmine.any(Object))
})
})
describe('DATA_KEY', () => {
it('should return plugin data key', () => {
expect(Dropdown.DATA_KEY).toEqual('bs.dropdown')
})
})
describe('constructor', () => {
it('should take care of element either passed as a CSS selector or DOM element', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownBySelector = new Dropdown('[data-bs-toggle="dropdown"]')
const dropdownByElement = new Dropdown(btnDropdown)
expect(dropdownBySelector._element).toEqual(btnDropdown)
expect(dropdownByElement._element).toEqual(btnDropdown)
})
it('should work on invalid markup', () => {
return new Promise(resolve => {
// TODO: REMOVE in v6
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Link</a>',
' </div>',
'</div>'
].join('')
const dropdownElem = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(dropdownElem)
dropdownElem.addEventListener('shown.bs.dropdown', () => {
resolve()
})
dropdown.show()
})
})
it('should create offset modifier correctly when offset option is a function', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const getOffset = jasmine.createSpy('getOffset').and.returnValue([10, 20])
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown, {
offset: getOffset,
popperConfig: {
onFirstUpdate(state) {
expect(getOffset).toHaveBeenCalledWith({
popper: state.rects.popper,
reference: state.rects.reference,
placement: state.placement
}, btnDropdown)
resolve()
}
}
})
const offset = dropdown._getOffset()
expect(typeof offset).toEqual('function')
dropdown.show()
})
})
it('should create offset modifier correctly when offset option is a string into data attribute', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-offset="10,20">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
expect(dropdown._getOffset()).toEqual([10, 20])
})
it('should allow to pass config to Popper with `popperConfig`', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown, {
popperConfig: {
placement: 'left'
}
})
const popperConfig = dropdown._getPopperConfig()
expect(popperConfig.placement).toEqual('left')
})
it('should allow to pass config to Popper with `popperConfig` as a function', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-placement="right">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const getPopperConfig = jasmine.createSpy('getPopperConfig').and.returnValue({ placement: 'left' })
const dropdown = new Dropdown(btnDropdown, {
popperConfig: getPopperConfig
})
const popperConfig = dropdown._getPopperConfig()
expect(getPopperConfig).toHaveBeenCalled()
expect(popperConfig.placement).toEqual('left')
})
})
describe('toggle', () => {
it('should toggle a dropdown', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
})
dropdown.toggle()
})
})
it('should destroy old popper references on toggle', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="first dropdown">',
' <button class="firstBtn btn" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>',
'<div class="second dropdown">',
' <button class="secondBtn btn" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown1 = fixtureEl.querySelector('.firstBtn')
const btnDropdown2 = fixtureEl.querySelector('.secondBtn')
const firstDropdownEl = fixtureEl.querySelector('.first')
const secondDropdownEl = fixtureEl.querySelector('.second')
const dropdown1 = new Dropdown(btnDropdown1)
firstDropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown1).toHaveClass('show')
spyOn(dropdown1._popper, 'destroy')
btnDropdown2.click()
})
secondDropdownEl.addEventListener('shown.bs.dropdown', () => setTimeout(() => {
expect(dropdown1._popper.destroy).toHaveBeenCalled()
resolve()
}))
dropdown1.toggle()
})
})
it('should toggle a dropdown and add/remove event listener on mobile', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const defaultValueOnTouchStart = document.documentElement.ontouchstart
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
document.documentElement.ontouchstart = noop
const spy = spyOn(EventHandler, 'on')
const spyOff = spyOn(EventHandler, 'off')
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
expect(spy).toHaveBeenCalledWith(jasmine.any(Object), 'mouseover', noop)
dropdown.toggle()
})
btnDropdown.addEventListener('hidden.bs.dropdown', () => {
expect(btnDropdown).not.toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('false')
expect(spyOff).toHaveBeenCalledWith(jasmine.any(Object), 'mouseover', noop)
document.documentElement.ontouchstart = defaultValueOnTouchStart
resolve()
})
dropdown.toggle()
})
})
it('should toggle a dropdown at the right', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu dropdown-menu-end">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
})
dropdown.toggle()
})
})
it('should toggle a centered dropdown', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown-center">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
})
dropdown.toggle()
})
})
it('should toggle a dropup', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropup">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropupEl = fixtureEl.querySelector('.dropup')
const dropdown = new Dropdown(btnDropdown)
dropupEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
})
dropdown.toggle()
})
})
it('should toggle a dropup centered', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropup-center">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropupEl = fixtureEl.querySelector('.dropup-center')
const dropdown = new Dropdown(btnDropdown)
dropupEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
})
dropdown.toggle()
})
})
it('should toggle a dropup at the right', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropup">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu dropdown-menu-end">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropupEl = fixtureEl.querySelector('.dropup')
const dropdown = new Dropdown(btnDropdown)
dropupEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
})
dropdown.toggle()
})
})
it('should toggle a dropend', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropend">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropendEl = fixtureEl.querySelector('.dropend')
const dropdown = new Dropdown(btnDropdown)
dropendEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
})
dropdown.toggle()
})
})
it('should toggle a dropstart', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropstart">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropstartEl = fixtureEl.querySelector('.dropstart')
const dropdown = new Dropdown(btnDropdown)
dropstartEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
})
dropdown.toggle()
})
})
it('should toggle a dropdown with parent reference', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown, {
reference: 'parent'
})
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
})
dropdown.toggle()
})
})
it('should toggle a dropdown with a dom node reference', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown, {
reference: fixtureEl
})
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
})
dropdown.toggle()
})
})
it('should toggle a dropdown with a jquery object reference', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown, {
reference: { 0: fixtureEl, jquery: 'jQuery' }
})
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
})
dropdown.toggle()
})
})
it('should toggle a dropdown with a valid virtual element reference', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle visually-hidden" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const virtualElement = {
nodeType: 1,
getBoundingClientRect() {
return {
width: 0,
height: 0,
top: 0,
right: 0,
bottom: 0,
left: 0
}
}
}
expect(() => new Dropdown(btnDropdown, {
reference: {}
})).toThrowError(TypeError, 'DROPDOWN: Option "reference" provided type "object" without a required "getBoundingClientRect" method.')
expect(() => new Dropdown(btnDropdown, {
reference: {
getBoundingClientRect: 'not-a-function'
}
})).toThrowError(TypeError, 'DROPDOWN: Option "reference" provided type "object" without a required "getBoundingClientRect" method.')
// use onFirstUpdate as Poppers internal update is executed async
const dropdown = new Dropdown(btnDropdown, {
reference: virtualElement,
popperConfig: {
onFirstUpdate() {
expect(spy).toHaveBeenCalled()
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
}
}
})
const spy = spyOn(virtualElement, 'getBoundingClientRect').and.callThrough()
dropdown.toggle()
})
})
it('should not toggle a dropdown if the element is disabled', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button disabled class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
reject(new Error('should not throw shown.bs.dropdown event'))
})
dropdown.toggle()
setTimeout(() => {
expect().nothing()
resolve()
})
})
})
it('should not toggle a dropdown if the element contains .disabled', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle disabled" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
reject(new Error('should not throw shown.bs.dropdown event'))
})
dropdown.toggle()
setTimeout(() => {
expect().nothing()
resolve()
})
})
})
it('should not toggle a dropdown if the menu is shown', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
reject(new Error('should not throw shown.bs.dropdown event'))
})
dropdown.toggle()
setTimeout(() => {
expect().nothing()
resolve()
})
})
})
it('should not toggle a dropdown if show event is prevented', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('show.bs.dropdown', event => {
event.preventDefault()
})
btnDropdown.addEventListener('shown.bs.dropdown', () => {
reject(new Error('should not throw shown.bs.dropdown event'))
})
dropdown.toggle()
setTimeout(() => {
expect().nothing()
resolve()
})
})
})
})
describe('show', () => {
it('should show a dropdown', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
resolve()
})
dropdown.show()
})
})
it('should not show a dropdown if the element is disabled', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button disabled class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
reject(new Error('should not throw shown.bs.dropdown event'))
})
dropdown.show()
setTimeout(() => {
expect().nothing()
resolve()
}, 10)
})
})
it('should not show a dropdown if the element contains .disabled', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle disabled" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
reject(new Error('should not throw shown.bs.dropdown event'))
})
dropdown.show()
setTimeout(() => {
expect().nothing()
resolve()
}, 10)
})
})
it('should not show a dropdown if the menu is shown', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
reject(new Error('should not throw shown.bs.dropdown event'))
})
dropdown.show()
setTimeout(() => {
expect().nothing()
resolve()
}, 10)
})
})
it('should not show a dropdown if show event is prevented', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('show.bs.dropdown', event => {
event.preventDefault()
})
btnDropdown.addEventListener('shown.bs.dropdown', () => {
reject(new Error('should not throw shown.bs.dropdown event'))
})
dropdown.show()
setTimeout(() => {
expect().nothing()
resolve()
}, 10)
})
})
})
describe('hide', () => {
it('should hide a dropdown', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="true">Dropdown</button>',
' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('hidden.bs.dropdown', () => {
expect(dropdownMenu).not.toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('false')
resolve()
})
dropdown.hide()
})
})
it('should hide a dropdown and destroy popper', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
spyOn(dropdown._popper, 'destroy')
dropdown.hide()
})
btnDropdown.addEventListener('hidden.bs.dropdown', () => {
expect(dropdown._popper.destroy).toHaveBeenCalled()
resolve()
})
dropdown.show()
})
})
it('should not hide a dropdown if the element is disabled', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button disabled class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('hidden.bs.dropdown', () => {
reject(new Error('should not throw hidden.bs.dropdown event'))
})
dropdown.hide()
setTimeout(() => {
expect(dropdownMenu).toHaveClass('show')
resolve()
}, 10)
})
})
it('should not hide a dropdown if the element contains .disabled', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle disabled" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('hidden.bs.dropdown', () => {
reject(new Error('should not throw hidden.bs.dropdown event'))
})
dropdown.hide()
setTimeout(() => {
expect(dropdownMenu).toHaveClass('show')
resolve()
}, 10)
})
})
it('should not hide a dropdown if the menu is not shown', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('hidden.bs.dropdown', () => {
reject(new Error('should not throw hidden.bs.dropdown event'))
})
dropdown.hide()
setTimeout(() => {
expect().nothing()
resolve()
}, 10)
})
})
it('should not hide a dropdown if hide event is prevented', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('hide.bs.dropdown', event => {
event.preventDefault()
})
btnDropdown.addEventListener('hidden.bs.dropdown', () => {
reject(new Error('should not throw hidden.bs.dropdown event'))
})
dropdown.hide()
setTimeout(() => {
expect(dropdownMenu).toHaveClass('show')
resolve()
})
})
})
it('should remove event listener on touch-enabled device that was added in show method', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Dropdown item</a>',
' </div>',
'</div>'
].join('')
const defaultValueOnTouchStart = document.documentElement.ontouchstart
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
document.documentElement.ontouchstart = noop
const spy = spyOn(EventHandler, 'off')
btnDropdown.addEventListener('shown.bs.dropdown', () => {
dropdown.hide()
})
btnDropdown.addEventListener('hidden.bs.dropdown', () => {
expect(btnDropdown).not.toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('false')
expect(spy).toHaveBeenCalled()
document.documentElement.ontouchstart = defaultValueOnTouchStart
resolve()
})
dropdown.show()
})
})
})
describe('dispose', () => {
it('should dispose dropdown', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
expect(dropdown._popper).toBeNull()
expect(dropdown._menu).not.toBeNull()
expect(dropdown._element).not.toBeNull()
const spy = spyOn(EventHandler, 'off')
dropdown.dispose()
expect(dropdown._menu).toBeNull()
expect(dropdown._element).toBeNull()
expect(spy).toHaveBeenCalledWith(btnDropdown, Dropdown.EVENT_KEY)
})
it('should dispose dropdown with Popper', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
dropdown.toggle()
expect(dropdown._popper).not.toBeNull()
expect(dropdown._menu).not.toBeNull()
expect(dropdown._element).not.toBeNull()
dropdown.dispose()
expect(dropdown._popper).toBeNull()
expect(dropdown._menu).toBeNull()
expect(dropdown._element).toBeNull()
})
})
describe('update', () => {
it('should call Popper and detect navbar on update', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
dropdown.toggle()
expect(dropdown._popper).not.toBeNull()
const spyUpdate = spyOn(dropdown._popper, 'update')
const spyDetect = spyOn(dropdown, '_detectNavbar')
dropdown.update()
expect(spyUpdate).toHaveBeenCalled()
expect(spyDetect).toHaveBeenCalled()
})
it('should just detect navbar on update', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
const spy = spyOn(dropdown, '_detectNavbar')
dropdown.update()
expect(dropdown._popper).toBeNull()
expect(spy).toHaveBeenCalled()
})
})
describe('data-api', () => {
it('should show and hide a dropdown', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
let showEventTriggered = false
let hideEventTriggered = false
btnDropdown.addEventListener('show.bs.dropdown', () => {
showEventTriggered = true
})
btnDropdown.addEventListener('shown.bs.dropdown', event => setTimeout(() => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
expect(showEventTriggered).toBeTrue()
expect(event.relatedTarget).toEqual(btnDropdown)
document.body.click()
}))
btnDropdown.addEventListener('hide.bs.dropdown', () => {
hideEventTriggered = true
})
btnDropdown.addEventListener('hidden.bs.dropdown', event => {
expect(btnDropdown).not.toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('false')
expect(hideEventTriggered).toBeTrue()
expect(event.relatedTarget).toEqual(btnDropdown)
resolve()
})
btnDropdown.click()
})
})
it('should not use "static" Popper in navbar', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<nav class="navbar navbar-expand-md bg-light">',
' <div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
' </div>',
'</nav>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(dropdown._popper).not.toBeNull()
expect(dropdownMenu.getAttribute('data-bs-popper')).toEqual('static')
resolve()
})
dropdown.show()
})
})
it('should not collapse the dropdown when clicking a select option nested in the dropdown', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <select>',
' <option selected>Open this select menu</option>',
' <option value="1">One</option>',
' </select>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
const hideSpy = spyOn(dropdown, '_completeHide')
btnDropdown.addEventListener('shown.bs.dropdown', () => {
const clickEvent = new MouseEvent('click', {
bubbles: true
})
dropdownMenu.querySelector('option').dispatchEvent(clickEvent)
})
dropdownMenu.addEventListener('click', event => {
expect(event.target.tagName).toMatch(/select|option/i)
Dropdown.clearMenus(event)
setTimeout(() => {
expect(hideSpy).not.toHaveBeenCalled()
resolve()
}, 10)
})
dropdown.show()
})
})
it('should manage bs attribute `data-bs-popper`="static" when dropdown is in navbar', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<nav class="navbar navbar-expand-md bg-light">',
' <div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
' </div>',
'</nav>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(dropdownMenu.getAttribute('data-bs-popper')).toEqual('static')
dropdown.hide()
})
btnDropdown.addEventListener('hidden.bs.dropdown', () => {
expect(dropdownMenu.getAttribute('data-bs-popper')).toBeNull()
resolve()
})
dropdown.show()
})
})
it('should not use Popper if display set to static', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-display="static">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
btnDropdown.addEventListener('shown.bs.dropdown', () => {
// Popper adds this attribute when we use it
expect(dropdownMenu.getAttribute('data-popper-placement')).toBeNull()
resolve()
})
btnDropdown.click()
})
})
it('should manage bs attribute `data-bs-popper`="static" when display set to static', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-display="static">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(dropdownMenu.getAttribute('data-bs-popper')).toEqual('static')
dropdown.hide()
})
btnDropdown.addEventListener('hidden.bs.dropdown', () => {
expect(dropdownMenu.getAttribute('data-bs-popper')).toBeNull()
resolve()
})
dropdown.show()
})
})
it('should remove "show" class if tabbing outside of menu', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
btnDropdown.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown).toHaveClass('show')
const keyup = createEvent('keyup')
keyup.key = 'Tab'
document.dispatchEvent(keyup)
})
btnDropdown.addEventListener('hidden.bs.dropdown', () => {
expect(btnDropdown).not.toHaveClass('show')
resolve()
})
btnDropdown.click()
})
})
it('should remove "show" class if body is clicked, with multiple dropdowns', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="nav">',
' <div class="dropdown" id="testmenu">',
' <a class="dropdown-toggle" data-bs-toggle="dropdown" href="#testmenu">Test menu</a>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#sub1">Submenu 1</a>',
' </div>',
' </div>',
'</div>',
'<div class="btn-group">',
' <button class="btn">Actions</button>',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown"></button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Action 1</a>',
' </div>',
'</div>'
].join('')
const triggerDropdownList = fixtureEl.querySelectorAll('[data-bs-toggle="dropdown"]')
expect(triggerDropdownList).toHaveSize(2)
const [triggerDropdownFirst, triggerDropdownLast] = triggerDropdownList
triggerDropdownFirst.addEventListener('shown.bs.dropdown', () => {
expect(triggerDropdownFirst).toHaveClass('show')
expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(1)
document.body.click()
})
triggerDropdownFirst.addEventListener('hidden.bs.dropdown', () => {
expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(0)
triggerDropdownLast.click()
})
triggerDropdownLast.addEventListener('shown.bs.dropdown', () => {
expect(triggerDropdownLast).toHaveClass('show')
expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(1)
document.body.click()
})
triggerDropdownLast.addEventListener('hidden.bs.dropdown', () => {
expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(0)
resolve()
})
triggerDropdownFirst.click()
})
})
it('should remove "show" class if body if tabbing outside of menu, with multiple dropdowns', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <a class="dropdown-toggle" data-bs-toggle="dropdown" href="#testmenu">Test menu</a>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#sub1">Submenu 1</a>',
' </div>',
'</div>',
'<div class="btn-group">',
' <button class="btn">Actions</button>',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown"></button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Action 1</a>',
' </div>',
'</div>'
].join('')
const triggerDropdownList = fixtureEl.querySelectorAll('[data-bs-toggle="dropdown"]')
expect(triggerDropdownList).toHaveSize(2)
const [triggerDropdownFirst, triggerDropdownLast] = triggerDropdownList
triggerDropdownFirst.addEventListener('shown.bs.dropdown', () => {
expect(triggerDropdownFirst).toHaveClass('show')
expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(1)
const keyup = createEvent('keyup')
keyup.key = 'Tab'
document.dispatchEvent(keyup)
})
triggerDropdownFirst.addEventListener('hidden.bs.dropdown', () => {
expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(0)
triggerDropdownLast.click()
})
triggerDropdownLast.addEventListener('shown.bs.dropdown', () => {
expect(triggerDropdownLast).toHaveClass('show')
expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(1)
const keyup = createEvent('keyup')
keyup.key = 'Tab'
document.dispatchEvent(keyup)
})
triggerDropdownLast.addEventListener('hidden.bs.dropdown', () => {
expect(fixtureEl.querySelectorAll('.dropdown-menu.show')).toHaveSize(0)
resolve()
})
triggerDropdownFirst.click()
})
})
it('should be able to identify clicked dropdown, even with multiple dropdowns in the same tag', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button id="dropdown1" class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown toggle</button>',
' <div id="menu1" class="dropdown-menu">',
' <a class="dropdown-item" href="#">Dropdown item</a>',
' </div>',
' <button id="dropdown2" class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown toggle</button>',
' <div id="menu2" class="dropdown-menu">',
' <a class="dropdown-item" href="#">Dropdown item</a>',
' </div>',
'</div>'
].join('')
const dropdownToggle1 = fixtureEl.querySelector('#dropdown1')
const dropdownToggle2 = fixtureEl.querySelector('#dropdown2')
const dropdownMenu1 = fixtureEl.querySelector('#menu1')
const dropdownMenu2 = fixtureEl.querySelector('#menu2')
const spy = spyOn(Dropdown, 'getOrCreateInstance').and.callThrough()
dropdownToggle1.click()
expect(spy).toHaveBeenCalledWith(dropdownToggle1)
dropdownToggle2.click()
expect(spy).toHaveBeenCalledWith(dropdownToggle2)
dropdownMenu1.click()
expect(spy).toHaveBeenCalledWith(dropdownToggle1)
dropdownMenu2.click()
expect(spy).toHaveBeenCalledWith(dropdownToggle2)
})
it('should be able to show the proper menu, even with multiple dropdowns in the same tag', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button id="dropdown1" class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown toggle</button>',
' <div id="menu1" class="dropdown-menu">',
' <a class="dropdown-item" href="#">Dropdown item</a>',
' </div>',
' <button id="dropdown2" class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown toggle</button>',
' <div id="menu2" class="dropdown-menu">',
' <a class="dropdown-item" href="#">Dropdown item</a>',
' </div>',
'</div>'
].join('')
const dropdownToggle1 = fixtureEl.querySelector('#dropdown1')
const dropdownToggle2 = fixtureEl.querySelector('#dropdown2')
const dropdownMenu1 = fixtureEl.querySelector('#menu1')
const dropdownMenu2 = fixtureEl.querySelector('#menu2')
dropdownToggle1.click()
expect(dropdownMenu1).toHaveClass('show')
expect(dropdownMenu2).not.toHaveClass('show')
dropdownToggle2.click()
expect(dropdownMenu1).not.toHaveClass('show')
expect(dropdownMenu2).toHaveClass('show')
})
it('should fire hide and hidden event without a clickEvent if event type is not click', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#sub1">Submenu 1</a>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
triggerDropdown.addEventListener('hide.bs.dropdown', event => {
expect(event.clickEvent).toBeUndefined()
})
triggerDropdown.addEventListener('hidden.bs.dropdown', event => {
expect(event.clickEvent).toBeUndefined()
resolve()
})
triggerDropdown.addEventListener('shown.bs.dropdown', () => {
const keydown = createEvent('keydown')
keydown.key = 'Escape'
triggerDropdown.dispatchEvent(keydown)
})
triggerDropdown.click()
})
})
it('should bubble up the events to the parent elements', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#subMenu">Sub menu</a>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownParent = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(triggerDropdown)
const showFunction = jasmine.createSpy('showFunction')
dropdownParent.addEventListener('show.bs.dropdown', showFunction)
const shownFunction = jasmine.createSpy('shownFunction')
dropdownParent.addEventListener('shown.bs.dropdown', () => {
shownFunction()
dropdown.hide()
})
const hideFunction = jasmine.createSpy('hideFunction')
dropdownParent.addEventListener('hide.bs.dropdown', hideFunction)
dropdownParent.addEventListener('hidden.bs.dropdown', () => {
expect(showFunction).toHaveBeenCalled()
expect(shownFunction).toHaveBeenCalled()
expect(hideFunction).toHaveBeenCalled()
resolve()
})
dropdown.show()
})
})
it('should ignore keyboard events within <input>s and <textarea>s', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#sub1">Submenu 1</a>',
' <input type="text">',
' <textarea></textarea>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const input = fixtureEl.querySelector('input')
const textarea = fixtureEl.querySelector('textarea')
triggerDropdown.addEventListener('shown.bs.dropdown', () => {
input.focus()
const keydown = createEvent('keydown')
keydown.key = 'ArrowUp'
input.dispatchEvent(keydown)
expect(document.activeElement).toEqual(input, 'input still focused')
textarea.focus()
textarea.dispatchEvent(keydown)
expect(document.activeElement).toEqual(textarea, 'textarea still focused')
resolve()
})
triggerDropdown.click()
})
})
it('should skip disabled element when using keyboard navigation', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item disabled" href="#sub1">Submenu 1</a>',
' <button class="dropdown-item" type="button" disabled>Disabled button</button>',
' <a id="item1" class="dropdown-item" href="#">Another link</a>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
triggerDropdown.addEventListener('shown.bs.dropdown', () => {
const keydown = createEvent('keydown')
keydown.key = 'ArrowDown'
triggerDropdown.dispatchEvent(keydown)
triggerDropdown.dispatchEvent(keydown)
expect(document.activeElement).not.toHaveClass('disabled')
expect(document.activeElement.hasAttribute('disabled')).toBeFalse()
resolve()
})
triggerDropdown.click()
})
})
it('should skip hidden element when using keyboard navigation', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<style>',
' .d-none {',
' display: none;',
' }',
'</style>',
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <button class="dropdown-item d-none" type="button">Hidden button by class</button>',
' <a class="dropdown-item" href="#sub1" style="display: none">Hidden link</a>',
' <a class="dropdown-item" href="#sub1" style="visibility: hidden">Hidden link</a>',
' <a id="item1" class="dropdown-item" href="#">Another link</a>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
triggerDropdown.addEventListener('shown.bs.dropdown', () => {
const keydown = createEvent('keydown')
keydown.key = 'ArrowDown'
triggerDropdown.dispatchEvent(keydown)
expect(document.activeElement).not.toHaveClass('d-none')
expect(document.activeElement.style.display).not.toEqual('none')
expect(document.activeElement.style.visibility).not.toEqual('hidden')
resolve()
})
triggerDropdown.click()
})
})
it('should focus next/previous element when using keyboard navigation', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a id="item1" class="dropdown-item" href="#">A link</a>',
' <a id="item2" class="dropdown-item" href="#">Another link</a>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const item1 = fixtureEl.querySelector('#item1')
const item2 = fixtureEl.querySelector('#item2')
triggerDropdown.addEventListener('shown.bs.dropdown', () => {
const keydownArrowDown = createEvent('keydown')
keydownArrowDown.key = 'ArrowDown'
triggerDropdown.dispatchEvent(keydownArrowDown)
expect(document.activeElement).toEqual(item1, 'item1 is focused')
document.activeElement.dispatchEvent(keydownArrowDown)
expect(document.activeElement).toEqual(item2, 'item2 is focused')
const keydownArrowUp = createEvent('keydown')
keydownArrowUp.key = 'ArrowUp'
document.activeElement.dispatchEvent(keydownArrowUp)
expect(document.activeElement).toEqual(item1, 'item1 is focused')
resolve()
})
triggerDropdown.click()
})
})
it('should open the dropdown and focus on the last item when using ArrowUp for the first time', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a id="item1" class="dropdown-item" href="#">A link</a>',
' <a id="item2" class="dropdown-item" href="#">Another link</a>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const lastItem = fixtureEl.querySelector('#item2')
triggerDropdown.addEventListener('shown.bs.dropdown', () => {
setTimeout(() => {
expect(document.activeElement).toEqual(lastItem, 'item2 is focused')
resolve()
})
})
const keydown = createEvent('keydown')
keydown.key = 'ArrowUp'
triggerDropdown.dispatchEvent(keydown)
})
})
it('should open the dropdown and focus on the first item when using ArrowDown for the first time', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a id="item1" class="dropdown-item" href="#">A link</a>',
' <a id="item2" class="dropdown-item" href="#">Another link</a>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const firstItem = fixtureEl.querySelector('#item1')
triggerDropdown.addEventListener('shown.bs.dropdown', () => {
setTimeout(() => {
expect(document.activeElement).toEqual(firstItem, 'item1 is focused')
resolve()
})
})
const keydown = createEvent('keydown')
keydown.key = 'ArrowDown'
triggerDropdown.dispatchEvent(keydown)
})
})
it('should not close the dropdown if the user clicks on a text field within dropdown-menu', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <input type="text">',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const input = fixtureEl.querySelector('input')
input.addEventListener('click', () => {
expect(triggerDropdown).toHaveClass('show')
resolve()
})
triggerDropdown.addEventListener('shown.bs.dropdown', () => {
expect(triggerDropdown).toHaveClass('show')
input.dispatchEvent(createEvent('click'))
})
triggerDropdown.click()
})
})
it('should not close the dropdown if the user clicks on a textarea within dropdown-menu', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <textarea></textarea>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const textarea = fixtureEl.querySelector('textarea')
textarea.addEventListener('click', () => {
expect(triggerDropdown).toHaveClass('show')
resolve()
})
triggerDropdown.addEventListener('shown.bs.dropdown', () => {
expect(triggerDropdown).toHaveClass('show')
textarea.dispatchEvent(createEvent('click'))
})
triggerDropdown.click()
})
})
it('should close the dropdown if the user clicks on a text field that is not contained within dropdown-menu', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' </div>',
'</div>',
'<input type="text">'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const input = fixtureEl.querySelector('input')
triggerDropdown.addEventListener('hidden.bs.dropdown', () => {
expect().nothing()
resolve()
})
triggerDropdown.addEventListener('shown.bs.dropdown', () => {
input.dispatchEvent(createEvent('click', {
bubbles: true
}))
})
triggerDropdown.click()
})
})
it('should ignore keyboard events for <input>s and <textarea>s within dropdown-menu, except for escape key', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#sub1">Submenu 1</a>',
' <input type="text">',
' <textarea></textarea>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const input = fixtureEl.querySelector('input')
const textarea = fixtureEl.querySelector('textarea')
const test = (eventKey, elementToDispatch) => {
const event = createEvent('keydown')
event.key = eventKey
elementToDispatch.focus()
elementToDispatch.dispatchEvent(event)
expect(document.activeElement).toEqual(elementToDispatch, `${elementToDispatch.tagName} still focused`)
}
const keydownEscape = createEvent('keydown')
keydownEscape.key = 'Escape'
triggerDropdown.addEventListener('shown.bs.dropdown', () => {
// Key Space
test('Space', input)
test('Space', textarea)
// Key ArrowUp
test('ArrowUp', input)
test('ArrowUp', textarea)
// Key ArrowDown
test('ArrowDown', input)
test('ArrowDown', textarea)
// Key Escape
input.focus()
input.dispatchEvent(keydownEscape)
expect(triggerDropdown).not.toHaveClass('show')
resolve()
})
triggerDropdown.click()
})
})
it('should not open dropdown if escape key was pressed on the toggle', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="tabs">',
' <div class="dropdown">',
' <button disabled class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' <a class="dropdown-item" href="#">Something else here</a>',
' <div class="divider"></div>',
' <a class="dropdown-item" href="#">Another link</a>',
' </div>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = new Dropdown(triggerDropdown)
const button = fixtureEl.querySelector('button[data-bs-toggle="dropdown"]')
const spy = spyOn(dropdown, 'toggle')
// Key escape
button.focus()
// Key escape
const keydownEscape = createEvent('keydown')
keydownEscape.key = 'Escape'
button.dispatchEvent(keydownEscape)
setTimeout(() => {
expect(spy).not.toHaveBeenCalled()
expect(triggerDropdown).not.toHaveClass('show')
resolve()
}, 20)
})
})
it('should propagate escape key events if dropdown is closed', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="parent">',
' <div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Some Item</a>',
' </div>',
' </div>',
'</div>'
].join('')
const parent = fixtureEl.querySelector('.parent')
const toggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const parentKeyHandler = jasmine.createSpy('parentKeyHandler')
parent.addEventListener('keydown', parentKeyHandler)
parent.addEventListener('keyup', () => {
expect(parentKeyHandler).toHaveBeenCalled()
resolve()
})
const keydownEscape = createEvent('keydown', { bubbles: true })
keydownEscape.key = 'Escape'
const keyupEscape = createEvent('keyup', { bubbles: true })
keyupEscape.key = 'Escape'
toggle.focus()
toggle.dispatchEvent(keydownEscape)
toggle.dispatchEvent(keyupEscape)
})
})
it('should not propagate escape key events if dropdown is open', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="parent">',
' <div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Some Item</a>',
' </div>',
' </div>',
'</div>'
].join('')
const parent = fixtureEl.querySelector('.parent')
const toggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const parentKeyHandler = jasmine.createSpy('parentKeyHandler')
parent.addEventListener('keydown', parentKeyHandler)
parent.addEventListener('keyup', () => {
expect(parentKeyHandler).not.toHaveBeenCalled()
resolve()
})
const keydownEscape = createEvent('keydown', { bubbles: true })
keydownEscape.key = 'Escape'
const keyupEscape = createEvent('keyup', { bubbles: true })
keyupEscape.key = 'Escape'
toggle.click()
toggle.dispatchEvent(keydownEscape)
toggle.dispatchEvent(keyupEscape)
})
})
it('should close dropdown using `escape` button, and return focus to its trigger', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Some Item</a>',
' </div>',
'</div>'
].join('')
const toggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
toggle.addEventListener('shown.bs.dropdown', () => {
const keydownEvent = createEvent('keydown', { bubbles: true })
keydownEvent.key = 'ArrowDown'
toggle.dispatchEvent(keydownEvent)
keydownEvent.key = 'Escape'
toggle.dispatchEvent(keydownEvent)
})
toggle.addEventListener('hidden.bs.dropdown', () => setTimeout(() => {
expect(document.activeElement).toEqual(toggle)
resolve()
}))
toggle.click()
})
})
it('should close dropdown (only) by clicking inside the dropdown menu when it has data-attribute `data-bs-auto-close="inside"`', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-auto-close="inside">Dropdown toggle</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Dropdown item</a>',
' </div>',
'</div>'
].join('')
const dropdownToggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const expectDropdownToBeOpened = () => setTimeout(() => {
expect(dropdownToggle).toHaveClass('show')
dropdownMenu.click()
}, 150)
dropdownToggle.addEventListener('shown.bs.dropdown', () => {
document.documentElement.click()
expectDropdownToBeOpened()
})
dropdownToggle.addEventListener('hidden.bs.dropdown', () => setTimeout(() => {
expect(dropdownToggle).not.toHaveClass('show')
resolve()
}))
dropdownToggle.click()
})
})
it('should close dropdown (only) by clicking outside the dropdown menu when it has data-attribute `data-bs-auto-close="outside"`', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-auto-close="outside">Dropdown toggle</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Dropdown item</a>',
' </div>',
'</div>'
].join('')
const dropdownToggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const expectDropdownToBeOpened = () => setTimeout(() => {
expect(dropdownToggle).toHaveClass('show')
document.documentElement.click()
}, 150)
dropdownToggle.addEventListener('shown.bs.dropdown', () => {
dropdownMenu.click()
expectDropdownToBeOpened()
})
dropdownToggle.addEventListener('hidden.bs.dropdown', () => {
expect(dropdownToggle).not.toHaveClass('show')
resolve()
})
dropdownToggle.click()
})
})
it('should not close dropdown by clicking inside or outside the dropdown menu when it has data-attribute `data-bs-auto-close="false"`', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-auto-close="false">Dropdown toggle</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Dropdown item</a>',
' </div>',
'</div>'
].join('')
const dropdownToggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const expectDropdownToBeOpened = (shouldTriggerClick = true) => setTimeout(() => {
expect(dropdownToggle).toHaveClass('show')
if (shouldTriggerClick) {
document.documentElement.click()
} else {
resolve()
}
expectDropdownToBeOpened(false)
}, 150)
dropdownToggle.addEventListener('shown.bs.dropdown', () => {
dropdownMenu.click()
expectDropdownToBeOpened()
})
dropdownToggle.click()
})
})
it('should be able to identify clicked dropdown, no matter the markup order', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Dropdown item</a>',
' </div>',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown toggle</button>',
'</div>'
].join('')
const dropdownToggle = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const spy = spyOn(Dropdown, 'getOrCreateInstance').and.callThrough()
dropdownToggle.click()
expect(spy).toHaveBeenCalledWith(dropdownToggle)
dropdownMenu.click()
expect(spy).toHaveBeenCalledWith(dropdownToggle)
})
})
describe('jQueryInterface', () => {
it('should create a dropdown', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
jQueryMock.fn.dropdown = Dropdown.jQueryInterface
jQueryMock.elements = [div]
jQueryMock.fn.dropdown.call(jQueryMock)
expect(Dropdown.getInstance(div)).not.toBeNull()
})
it('should not re create a dropdown', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const dropdown = new Dropdown(div)
jQueryMock.fn.dropdown = Dropdown.jQueryInterface
jQueryMock.elements = [div]
jQueryMock.fn.dropdown.call(jQueryMock)
expect(Dropdown.getInstance(div)).toEqual(dropdown)
})
it('should throw error on undefined method', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const action = 'undefinedMethod'
jQueryMock.fn.dropdown = Dropdown.jQueryInterface
jQueryMock.elements = [div]
expect(() => {
jQueryMock.fn.dropdown.call(jQueryMock, action)
}).toThrowError(TypeError, `No method named "${action}"`)
})
})
describe('getInstance', () => {
it('should return dropdown instance', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const dropdown = new Dropdown(div)
expect(Dropdown.getInstance(div)).toEqual(dropdown)
expect(Dropdown.getInstance(div)).toBeInstanceOf(Dropdown)
})
it('should return null when there is no dropdown instance', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
expect(Dropdown.getInstance(div)).toBeNull()
})
})
describe('getOrCreateInstance', () => {
it('should return dropdown instance', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const dropdown = new Dropdown(div)
expect(Dropdown.getOrCreateInstance(div)).toEqual(dropdown)
expect(Dropdown.getInstance(div)).toEqual(Dropdown.getOrCreateInstance(div, {}))
expect(Dropdown.getOrCreateInstance(div)).toBeInstanceOf(Dropdown)
})
it('should return new instance when there is no dropdown instance', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
expect(Dropdown.getInstance(div)).toBeNull()
expect(Dropdown.getOrCreateInstance(div)).toBeInstanceOf(Dropdown)
})
it('should return new instance when there is no dropdown instance with given configuration', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
expect(Dropdown.getInstance(div)).toBeNull()
const dropdown = Dropdown.getOrCreateInstance(div, {
display: 'dynamic'
})
expect(dropdown).toBeInstanceOf(Dropdown)
expect(dropdown._config.display).toEqual('dynamic')
})
it('should return the instance when exists without given configuration', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const dropdown = new Dropdown(div, {
display: 'dynamic'
})
expect(Dropdown.getInstance(div)).toEqual(dropdown)
const dropdown2 = Dropdown.getOrCreateInstance(div, {
display: 'static'
})
expect(dropdown).toBeInstanceOf(Dropdown)
expect(dropdown2).toEqual(dropdown)
expect(dropdown2._config.display).toEqual('dynamic')
})
})
it('should open dropdown when pressing keydown or keyup', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item disabled" href="#sub1">Submenu 1</a>',
' <button class="dropdown-item" type="button" disabled>Disabled button</button>',
' <a id="item1" class="dropdown-item" href="#">Another link</a>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const dropdown = fixtureEl.querySelector('.dropdown')
const keydown = createEvent('keydown')
keydown.key = 'ArrowDown'
const keyup = createEvent('keyup')
keyup.key = 'ArrowUp'
const handleArrowDown = () => {
expect(triggerDropdown).toHaveClass('show')
expect(triggerDropdown.getAttribute('aria-expanded')).toEqual('true')
setTimeout(() => {
dropdown.hide()
keydown.key = 'ArrowUp'
triggerDropdown.dispatchEvent(keyup)
}, 20)
}
const handleArrowUp = () => {
expect(triggerDropdown).toHaveClass('show')
expect(triggerDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
}
dropdown.addEventListener('shown.bs.dropdown', event => {
if (event.target.key === 'ArrowDown') {
handleArrowDown()
} else {
handleArrowUp()
}
})
triggerDropdown.dispatchEvent(keydown)
})
})
it('should allow `data-bs-toggle="dropdown"` click events to bubble up', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const clickListener = jasmine.createSpy('clickListener')
const delegatedClickListener = jasmine.createSpy('delegatedClickListener')
btnDropdown.addEventListener('click', clickListener)
document.addEventListener('click', delegatedClickListener)
btnDropdown.click()
expect(clickListener).toHaveBeenCalled()
expect(delegatedClickListener).toHaveBeenCalled()
})
it('should open the dropdown when clicking the child element inside `data-bs-toggle="dropdown"`', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="container">',
' <div class="dropdown">',
' <button class="btn dropdown-toggle" data-bs-toggle="dropdown"><span id="childElement">Dropdown</span></button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#subMenu">Sub menu</a>',
' </div>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-bs-toggle="dropdown"]')
const childElement = fixtureEl.querySelector('#childElement')
btnDropdown.addEventListener('shown.bs.dropdown', () => setTimeout(() => {
expect(btnDropdown).toHaveClass('show')
expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
resolve()
}))
childElement.click()
})
})
})
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