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Bootstrap/js/tests/unit/dropdown.spec.js

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import Popper from 'popper.js'
import Dropdown from '../../src/dropdown'
import EventHandler from '../../src/dom/event-handler'
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/** Test helpers */
import { getFixture, clearFixture, createEvent, jQueryMock } from '../helpers/fixture'
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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('constructor', () => {
it('should create offset modifier correctly when offset option is a function', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const getOffset = offsets => offsets
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown, {
offset: getOffset
})
const offset = dropdown._getOffset()
expect(offset.offset).toBeUndefined()
expect(typeof offset.fn).toEqual('function')
})
it('should create offset modifier correctly when offset option is not a function', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const myOffset = 7
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown, {
offset: myOffset
})
const offset = dropdown._getOffset()
expect(offset.offset).toEqual(myOffset)
expect(offset.fn).toBeUndefined()
})
it('should add a listener on trigger which do not have data-toggle="dropdown"', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('.btn')
const dropdown = new Dropdown(btnDropdown)
spyOn(dropdown, 'toggle')
btnDropdown.click()
expect(dropdown.toggle).toHaveBeenCalled()
})
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it('should allow to pass config to popper.js with `popperConfig`', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown, {
popperConfig: {
placement: 'left'
}
})
const popperConfig = dropdown._getPopperConfig()
expect(popperConfig.placement).toEqual('left')
})
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})
describe('toggle', () => {
it('should toggle a dropdown', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
done()
})
dropdown.toggle()
})
it('should destroy old popper references on toggle', done => {
fixtureEl.innerHTML = [
'<div class="first dropdown">',
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' <button class="firstBtn btn" data-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">',
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' <button class="secondBtn btn" data-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)
const dropdown2 = new Dropdown(btnDropdown2)
firstDropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown1.classList.contains('show')).toEqual(true)
spyOn(dropdown1._popper, 'destroy')
dropdown2.toggle()
})
secondDropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(dropdown1._popper.destroy).toHaveBeenCalled()
done()
})
dropdown1.toggle()
})
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it('should toggle a dropdown and add/remove event listener on mobile', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <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-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
document.documentElement.ontouchstart = () => {}
spyOn(EventHandler, 'on')
spyOn(EventHandler, 'off')
dropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
expect(EventHandler.on).toHaveBeenCalled()
dropdown.toggle()
})
dropdownEl.addEventListener('hidden.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(false)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('false')
expect(EventHandler.off).toHaveBeenCalled()
document.documentElement.ontouchstart = defaultValueOnTouchStart
done()
})
dropdown.toggle()
})
it('should toggle a dropdown at the right', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <div class="dropdown-menu dropdown-menu-right">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
done()
})
dropdown.toggle()
})
it('should toggle a dropup', done => {
fixtureEl.innerHTML = [
'<div class="dropup">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropupEl = fixtureEl.querySelector('.dropup')
const dropdown = new Dropdown(btnDropdown)
dropupEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
done()
})
dropdown.toggle()
})
it('should toggle a dropup at the right', done => {
fixtureEl.innerHTML = [
'<div class="dropup">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <div class="dropdown-menu dropdown-menu-right">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropupEl = fixtureEl.querySelector('.dropup')
const dropdown = new Dropdown(btnDropdown)
dropupEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
done()
})
dropdown.toggle()
})
it('should toggle a dropright', done => {
fixtureEl.innerHTML = [
'<div class="dropright">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const droprightEl = fixtureEl.querySelector('.dropright')
const dropdown = new Dropdown(btnDropdown)
droprightEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
done()
})
dropdown.toggle()
})
it('should toggle a dropleft', done => {
fixtureEl.innerHTML = [
'<div class="dropleft">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropleftEl = fixtureEl.querySelector('.dropleft')
const dropdown = new Dropdown(btnDropdown)
dropleftEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
done()
})
dropdown.toggle()
})
it('should toggle a dropdown with parent reference', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown, {
reference: 'parent'
})
dropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
done()
})
dropdown.toggle()
})
it('should toggle a dropdown with a dom node reference', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown, {
reference: fixtureEl
})
dropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
done()
})
dropdown.toggle()
})
it('should toggle a dropdown with a jquery object reference', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown, {
reference: { 0: fixtureEl, jquery: 'jQuery' }
})
dropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
done()
})
dropdown.toggle()
})
it('should not toggle a dropdown if the element is disabled', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button disabled class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('shown.bs.dropdown', () => {
throw new Error('should not throw shown.bs.dropdown event')
})
dropdown.toggle()
setTimeout(() => {
expect().nothing()
done()
})
})
it('should not toggle a dropdown if the element contains .disabled', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle disabled" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('shown.bs.dropdown', () => {
throw new Error('should not throw shown.bs.dropdown event')
})
dropdown.toggle()
setTimeout(() => {
expect().nothing()
done()
})
})
it('should not toggle a dropdown if the menu is shown', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('shown.bs.dropdown', () => {
throw new Error('should not throw shown.bs.dropdown event')
})
dropdown.toggle()
setTimeout(() => {
expect().nothing()
done()
})
})
it('should not toggle a dropdown if show event is prevented', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('show.bs.dropdown', e => {
e.preventDefault()
})
dropdownEl.addEventListener('shown.bs.dropdown', () => {
throw new Error('should not throw shown.bs.dropdown event')
})
dropdown.toggle()
setTimeout(() => {
expect().nothing()
done()
})
})
})
describe('show', () => {
it('should show a dropdown', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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done()
})
dropdown.show()
})
it('should not show a dropdown if the element is disabled', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button disabled class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('shown.bs.dropdown', () => {
throw new Error('should not throw shown.bs.dropdown event')
})
dropdown.show()
setTimeout(() => {
expect().nothing()
done()
}, 10)
})
it('should not show a dropdown if the element contains .disabled', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle disabled" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('shown.bs.dropdown', () => {
throw new Error('should not throw shown.bs.dropdown event')
})
dropdown.show()
setTimeout(() => {
expect().nothing()
done()
}, 10)
})
it('should not show a dropdown if the menu is shown', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('shown.bs.dropdown', () => {
throw new Error('should not throw shown.bs.dropdown event')
})
dropdown.show()
setTimeout(() => {
expect().nothing()
done()
}, 10)
})
it('should not show a dropdown if show event is prevented', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('show.bs.dropdown', e => {
e.preventDefault()
})
dropdownEl.addEventListener('shown.bs.dropdown', () => {
throw new Error('should not throw shown.bs.dropdown event')
})
dropdown.show()
setTimeout(() => {
expect().nothing()
done()
}, 10)
})
})
describe('hide', () => {
it('should hide a dropdown', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('hidden.bs.dropdown', () => {
expect(dropdownMenu.classList.contains('show')).toEqual(false)
done()
})
dropdown.hide()
})
it('should hide a dropdown and destroy popper', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('shown.bs.dropdown', () => {
spyOn(dropdown._popper, 'destroy')
dropdown.hide()
})
dropdownEl.addEventListener('hidden.bs.dropdown', () => {
expect(dropdown._popper.destroy).toHaveBeenCalled()
done()
})
dropdown.show()
})
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it('should not hide a dropdown if the element is disabled', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button disabled class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('hidden.bs.dropdown', () => {
throw new Error('should not throw hidden.bs.dropdown event')
})
dropdown.hide()
setTimeout(() => {
expect(dropdownMenu.classList.contains('show')).toEqual(true)
done()
}, 10)
})
it('should not hide a dropdown if the element contains .disabled', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle disabled" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('hidden.bs.dropdown', () => {
throw new Error('should not throw hidden.bs.dropdown event')
})
dropdown.hide()
setTimeout(() => {
expect(dropdownMenu.classList.contains('show')).toEqual(true)
done()
}, 10)
})
it('should not hide a dropdown if the menu is not shown', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('hidden.bs.dropdown', () => {
throw new Error('should not throw hidden.bs.dropdown event')
})
dropdown.hide()
setTimeout(() => {
expect().nothing()
done()
}, 10)
})
it('should not hide a dropdown if hide event is prevented', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu show">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
const dropdown = new Dropdown(btnDropdown)
dropdownEl.addEventListener('hide.bs.dropdown', e => {
e.preventDefault()
})
dropdownEl.addEventListener('hidden.bs.dropdown', () => {
throw new Error('should not throw hidden.bs.dropdown event')
})
dropdown.hide()
setTimeout(() => {
expect(dropdownMenu.classList.contains('show')).toEqual(true)
done()
})
})
})
describe('dispose', () => {
it('should dispose dropdown', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
expect(dropdown._popper).toBeNull()
expect(dropdown._menu).toBeDefined()
expect(dropdown._element).toBeDefined()
dropdown.dispose()
expect(dropdown._menu).toBeNull()
expect(dropdown._element).toBeNull()
})
it('should dispose dropdown with popper.js', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
dropdown.toggle()
expect(dropdown._popper).toBeDefined()
expect(dropdown._menu).toBeDefined()
expect(dropdown._element).toBeDefined()
spyOn(Popper.prototype, 'destroy')
dropdown.dispose()
expect(dropdown._popper).toBeNull()
expect(dropdown._menu).toBeNull()
expect(dropdown._element).toBeNull()
expect(Popper.prototype.destroy).toHaveBeenCalled()
})
})
describe('update', () => {
it('should call popper.js and detect navbar on update', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
dropdown.toggle()
expect(dropdown._popper).toBeDefined()
spyOn(dropdown._popper, 'scheduleUpdate')
spyOn(dropdown, '_detectNavbar')
dropdown.update()
expect(dropdown._popper.scheduleUpdate).toHaveBeenCalled()
expect(dropdown._detectNavbar).toHaveBeenCalled()
})
it('should just detect navbar on update', () => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdown = new Dropdown(btnDropdown)
spyOn(dropdown, '_detectNavbar')
dropdown.update()
expect(dropdown._popper).toBeNull()
expect(dropdown._detectNavbar).toHaveBeenCalled()
})
})
describe('data-api', () => {
it('should not add class position-static to dropdown if boundary not set', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
dropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(dropdownEl.classList.contains('position-static')).toEqual(false)
done()
})
btnDropdown.click()
})
it('should add class position-static to dropdown if boundary not scrollParent', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" data-boundary="viewport">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
dropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(dropdownEl.classList.contains('position-static')).toEqual(true)
done()
})
btnDropdown.click()
})
it('should show and hide a dropdown', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
let showEventTriggered = false
let hideEventTriggered = false
dropdownEl.addEventListener('show.bs.dropdown', () => {
showEventTriggered = true
})
dropdownEl.addEventListener('shown.bs.dropdown', e => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('true')
expect(showEventTriggered).toEqual(true)
expect(e.relatedTarget).toEqual(btnDropdown)
document.body.click()
})
dropdownEl.addEventListener('hide.bs.dropdown', () => {
hideEventTriggered = true
})
dropdownEl.addEventListener('hidden.bs.dropdown', e => {
expect(btnDropdown.classList.contains('show')).toEqual(false)
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expect(btnDropdown.getAttribute('aria-expanded')).toEqual('false')
expect(hideEventTriggered).toEqual(true)
expect(e.relatedTarget).toEqual(btnDropdown)
done()
})
btnDropdown.click()
})
it('should not use popper.js in navbar', done => {
fixtureEl.innerHTML = [
'<nav class="navbar navbar-expand-md navbar-light bg-light">',
' <div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
' </div>',
'</nav>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
dropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(dropdownMenu.getAttribute('style')).toEqual(null, 'no inline style applied by popper.js')
done()
})
btnDropdown.click()
})
it('should not use popper.js if display set to static', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown" data-display="static">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
const dropdownMenu = fixtureEl.querySelector('.dropdown-menu')
dropdownEl.addEventListener('shown.bs.dropdown', () => {
// popper.js add this attribute when we use it
expect(dropdownMenu.getAttribute('x-placement')).toEqual(null)
done()
})
btnDropdown.click()
})
it('should remove "show" class if tabbing outside of menu', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' </div>',
'</div>'
].join('')
const btnDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdownEl = fixtureEl.querySelector('.dropdown')
dropdownEl.addEventListener('shown.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(true)
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const keyup = createEvent('keyup')
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keyup.key = 'Tab'
document.dispatchEvent(keyup)
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})
dropdownEl.addEventListener('hidden.bs.dropdown', () => {
expect(btnDropdown.classList.contains('show')).toEqual(false)
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done()
})
btnDropdown.click()
})
it('should remove "show" class if body is clicked, with multiple dropdowns', done => {
fixtureEl.innerHTML = [
'<div class="nav">',
' <div class="dropdown" id="testmenu">',
' <a class="dropdown-toggle" data-toggle="dropdown" href="#testmenu">Test menu <span class="caret"/></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-toggle="dropdown"></button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Action 1</a>',
' </div>',
'</div>'
].join('')
const triggerDropdownList = fixtureEl.querySelectorAll('[data-toggle="dropdown"]')
expect(triggerDropdownList.length).toEqual(2)
const first = triggerDropdownList[0]
const last = triggerDropdownList[1]
const dropdownTestMenu = first.parentNode
const btnGroup = last.parentNode
dropdownTestMenu.addEventListener('shown.bs.dropdown', () => {
expect(first.classList.contains('show')).toEqual(true)
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expect(fixtureEl.querySelectorAll('.dropdown-menu.show').length).toEqual(1)
document.body.click()
})
dropdownTestMenu.addEventListener('hidden.bs.dropdown', () => {
expect(fixtureEl.querySelectorAll('.dropdown-menu.show').length).toEqual(0)
last.click()
})
btnGroup.addEventListener('shown.bs.dropdown', () => {
expect(last.classList.contains('show')).toEqual(true)
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expect(fixtureEl.querySelectorAll('.dropdown-menu.show').length).toEqual(1)
document.body.click()
})
btnGroup.addEventListener('hidden.bs.dropdown', () => {
expect(fixtureEl.querySelectorAll('.dropdown-menu.show').length).toEqual(0)
done()
})
first.click()
})
it('should remove "show" class if body if tabbing outside of menu, with multiple dropdowns', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <a class="dropdown-toggle" data-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-toggle="dropdown"></button>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Action 1</a>',
' </div>',
'</div>'
].join('')
const triggerDropdownList = fixtureEl.querySelectorAll('[data-toggle="dropdown"]')
expect(triggerDropdownList.length).toEqual(2)
const first = triggerDropdownList[0]
const last = triggerDropdownList[1]
const dropdownTestMenu = first.parentNode
const btnGroup = last.parentNode
dropdownTestMenu.addEventListener('shown.bs.dropdown', () => {
expect(first.classList.contains('show')).toEqual(true, '"show" class added on click')
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expect(fixtureEl.querySelectorAll('.dropdown-menu.show').length).toEqual(1, 'only one dropdown is shown')
const keyup = createEvent('keyup')
keyup.key = 'Tab'
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document.dispatchEvent(keyup)
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})
dropdownTestMenu.addEventListener('hidden.bs.dropdown', () => {
expect(fixtureEl.querySelectorAll('.dropdown-menu.show').length).toEqual(0, '"show" class removed')
last.click()
})
btnGroup.addEventListener('shown.bs.dropdown', () => {
expect(last.classList.contains('show')).toEqual(true, '"show" class added on click')
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expect(fixtureEl.querySelectorAll('.dropdown-menu.show').length).toEqual(1, 'only one dropdown is shown')
const keyup = createEvent('keyup')
keyup.key = 'Tab'
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document.dispatchEvent(keyup)
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})
btnGroup.addEventListener('hidden.bs.dropdown', () => {
expect(fixtureEl.querySelectorAll('.dropdown-menu.show').length).toEqual(0, '"show" class removed')
done()
})
first.click()
})
it('should fire hide and hidden event without a clickEvent if event type is not click', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#sub1">Submenu 1</a>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdown = fixtureEl.querySelector('.dropdown')
dropdown.addEventListener('hide.bs.dropdown', e => {
expect(e.clickEvent).toBeUndefined()
})
dropdown.addEventListener('hidden.bs.dropdown', e => {
expect(e.clickEvent).toBeUndefined()
done()
})
dropdown.addEventListener('shown.bs.dropdown', () => {
const keydown = createEvent('keydown')
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keydown.key = 'Escape'
triggerDropdown.dispatchEvent(keydown)
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})
triggerDropdown.click()
})
it('should ignore keyboard events within <input>s and <textarea>s', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <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-toggle="dropdown"]')
const dropdown = fixtureEl.querySelector('.dropdown')
const input = fixtureEl.querySelector('input')
const textarea = fixtureEl.querySelector('textarea')
dropdown.addEventListener('shown.bs.dropdown', () => {
input.focus()
const keydown = createEvent('keydown')
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keydown.key = 'ArrowUp'
input.dispatchEvent(keydown)
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expect(document.activeElement).toEqual(input, 'input still focused')
textarea.focus()
textarea.dispatchEvent(keydown)
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expect(document.activeElement).toEqual(textarea, 'textarea still focused')
done()
})
triggerDropdown.click()
})
it('should skip disabled element when using keyboard navigation', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <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-toggle="dropdown"]')
const dropdown = fixtureEl.querySelector('.dropdown')
dropdown.addEventListener('shown.bs.dropdown', () => {
const keydown = createEvent('keydown')
keydown.key = 'ArrowDown'
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triggerDropdown.dispatchEvent(keydown)
triggerDropdown.dispatchEvent(keydown)
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expect(document.activeElement.classList.contains('disabled')).toEqual(false, '.disabled not focused')
expect(document.activeElement.hasAttribute('disabled')).toEqual(false, ':disabled not focused')
done()
})
triggerDropdown.click()
})
it('should skip hidden element when using keyboard navigation', done => {
fixtureEl.innerHTML = [
'<style>',
' .d-none {',
' display: none;',
' }',
'</style>',
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-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-toggle="dropdown"]')
const dropdown = fixtureEl.querySelector('.dropdown')
dropdown.addEventListener('shown.bs.dropdown', () => {
const keydown = createEvent('keydown')
keydown.key = 'ArrowDown'
triggerDropdown.dispatchEvent(keydown)
expect(document.activeElement.classList.contains('d-none')).toEqual(false, '.d-none not focused')
expect(document.activeElement.style.display === 'none').toEqual(false, '"display: none" not focused')
expect(document.activeElement.style.visibility === 'hidden').toEqual(false, '"visibility: hidden" not focused')
done()
})
triggerDropdown.click()
})
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it('should focus next/previous element when using keyboard navigation', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <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-toggle="dropdown"]')
const dropdown = fixtureEl.querySelector('.dropdown')
const item1 = fixtureEl.querySelector('#item1')
const item2 = fixtureEl.querySelector('#item2')
dropdown.addEventListener('shown.bs.dropdown', () => {
const keydownArrowDown = createEvent('keydown')
keydownArrowDown.key = 'ArrowDown'
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triggerDropdown.dispatchEvent(keydownArrowDown)
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expect(document.activeElement).toEqual(item1, 'item1 is focused')
document.activeElement.dispatchEvent(keydownArrowDown)
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expect(document.activeElement).toEqual(item2, 'item2 is focused')
const keydownArrowUp = createEvent('keydown')
keydownArrowUp.key = 'ArrowUp'
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document.activeElement.dispatchEvent(keydownArrowUp)
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expect(document.activeElement).toEqual(item1, 'item1 is focused')
done()
})
triggerDropdown.click()
})
it('should focus on the first element when using ArrowUp for the first time', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
' <button class="btn dropdown-toggle" data-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-toggle="dropdown"]')
const dropdown = fixtureEl.querySelector('.dropdown')
const item1 = fixtureEl.querySelector('#item1')
dropdown.addEventListener('shown.bs.dropdown', () => {
const keydown = createEvent('keydown')
keydown.key = 'ArrowUp'
document.activeElement.dispatchEvent(keydown)
expect(document.activeElement).toEqual(item1, 'item1 is focused')
done()
})
triggerDropdown.click()
})
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it('should not close the dropdown if the user clicks on a text field', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <input type="text" />',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdown = fixtureEl.querySelector('.dropdown')
const input = fixtureEl.querySelector('input')
input.addEventListener('click', () => {
expect(triggerDropdown.classList.contains('show')).toEqual(true, 'dropdown menu is shown')
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done()
})
dropdown.addEventListener('shown.bs.dropdown', () => {
expect(triggerDropdown.classList.contains('show')).toEqual(true, 'dropdown menu is shown')
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input.dispatchEvent(createEvent('click'))
})
triggerDropdown.click()
})
it('should not close the dropdown if the user clicks on a textarea', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <textarea></textarea>',
' </div>',
'</div>'
].join('')
const triggerDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdown = fixtureEl.querySelector('.dropdown')
const textarea = fixtureEl.querySelector('textarea')
textarea.addEventListener('click', () => {
expect(triggerDropdown.classList.contains('show')).toEqual(true, 'dropdown menu is shown')
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done()
})
dropdown.addEventListener('shown.bs.dropdown', () => {
expect(triggerDropdown.classList.contains('show')).toEqual(true, 'dropdown menu is shown')
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textarea.dispatchEvent(createEvent('click'))
})
triggerDropdown.click()
})
it('should ignore keyboard events for <input>s and <textarea>s within dropdown-menu, except for escape key', done => {
fixtureEl.innerHTML = [
'<div class="dropdown">',
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' <button class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <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-toggle="dropdown"]')
const dropdown = fixtureEl.querySelector('.dropdown')
const input = fixtureEl.querySelector('input')
const textarea = fixtureEl.querySelector('textarea')
const keydownSpace = createEvent('keydown')
keydownSpace.key = 'Space'
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const keydownArrowUp = createEvent('keydown')
keydownArrowUp.key = 'ArrowUp'
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const keydownArrowDown = createEvent('keydown')
keydownArrowDown.key = 'ArrowDown'
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const keydownEscape = createEvent('keydown')
keydownEscape.key = 'Escape'
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dropdown.addEventListener('shown.bs.dropdown', () => {
// Key Space
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input.focus()
input.dispatchEvent(keydownSpace)
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expect(document.activeElement).toEqual(input, 'input still focused')
textarea.focus()
textarea.dispatchEvent(keydownSpace)
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expect(document.activeElement).toEqual(textarea, 'textarea still focused')
// Key ArrowUp
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input.focus()
input.dispatchEvent(keydownArrowUp)
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expect(document.activeElement).toEqual(input, 'input still focused')
textarea.focus()
textarea.dispatchEvent(keydownArrowUp)
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expect(document.activeElement).toEqual(textarea, 'textarea still focused')
// Key ArrowDown
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input.focus()
input.dispatchEvent(keydownArrowDown)
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expect(document.activeElement).toEqual(input, 'input still focused')
textarea.focus()
textarea.dispatchEvent(keydownArrowDown)
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expect(document.activeElement).toEqual(textarea, 'textarea still focused')
// Key Escape
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input.focus()
input.dispatchEvent(keydownEscape)
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expect(triggerDropdown.classList.contains('show')).toEqual(false, 'dropdown menu is not shown')
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done()
})
triggerDropdown.click()
})
it('should not open dropdown if escape key was pressed on the toggle', done => {
fixtureEl.innerHTML = [
'<div class="tabs">',
' <div class="dropdown">',
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' <button disabled class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>',
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' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#">Secondary link</a>',
' <a class="dropdown-item" href="#">Something else here</a>',
' <div class="divider"/>',
' <a class="dropdown-item" href="#">Another link</a>',
' </div>',
' </div>',
'</div>'
]
const triggerDropdown = fixtureEl.querySelector('[data-toggle="dropdown"]')
const dropdown = new Dropdown(triggerDropdown)
const button = fixtureEl.querySelector('button[data-toggle="dropdown"]')
spyOn(dropdown, 'toggle')
// Key escape
button.focus()
// Key escape
const keydownEscape = createEvent('keydown')
keydownEscape.key = 'Escape'
button.dispatchEvent(keydownEscape)
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setTimeout(() => {
expect(dropdown.toggle).not.toHaveBeenCalled()
expect(triggerDropdown.classList.contains('show')).toEqual(false)
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done()
}, 20)
})
})
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describe('jQueryInterface', () => {
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it('should create a dropdown', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
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jQueryMock.fn.dropdown = Dropdown.jQueryInterface
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jQueryMock.elements = [div]
jQueryMock.fn.dropdown.call(jQueryMock)
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expect(Dropdown.getInstance(div)).toBeDefined()
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})
it('should not re create a dropdown', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const dropdown = new Dropdown(div)
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jQueryMock.fn.dropdown = Dropdown.jQueryInterface
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jQueryMock.elements = [div]
jQueryMock.fn.dropdown.call(jQueryMock)
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expect(Dropdown.getInstance(div)).toEqual(dropdown)
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})
it('should throw error on undefined method', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const action = 'undefinedMethod'
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jQueryMock.fn.dropdown = Dropdown.jQueryInterface
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jQueryMock.elements = [div]
try {
jQueryMock.fn.dropdown.call(jQueryMock, action)
} catch (error) {
expect(error.message).toEqual(`No method named "${action}"`)
}
})
})
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describe('getInstance', () => {
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it('should return dropdown instance', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const dropdown = new Dropdown(div)
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expect(Dropdown.getInstance(div)).toEqual(dropdown)
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})
it('should return null when there is no dropdown instance', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
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expect(Dropdown.getInstance(div)).toEqual(null)
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})
})
})