import EventHandler from '../../src/dom/event-handler.js' import Dropdown from '../../src/dropdown.js' import { noop } from '../../src/util/index.js' import { clearFixture, createEvent, getFixture, jQueryMock } from '../helpers/fixture.js' 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 = [ '' ].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 = [ '' ].join('') const dropdownElem = fixtureEl.querySelector('.dropdown-menu') const dropdown = new Dropdown(dropdownElem) dropdownElem.addEventListener('shown.bs.dropdown', () => { resolve() }) expect().nothing() dropdown.show() }) }) it('should create offset modifier correctly when offset option is a function', () => { return new Promise(resolve => { fixtureEl.innerHTML = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '', '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '
', ' ', ' ', '
' ].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 = [ '
', ' ', ' ', '
' ].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 = [ '
', ' ', ' ', '
' ].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 = [ '
', ' ', ' ', '
' ].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 = [ '
', ' ', ' ', '
' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '', '
', ' ', ' ', ' ', '
' ].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 = [ '', '
', ' ', ' ', ' ', '
' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 s and ', ' ', '' ].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 = [ '' ].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 = [ '', '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '', '' ].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 s and ', ' ', '' ].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 = [ '
', ' ', '
' ].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 = [ '
', ' ', '
' ].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 = [ '
', ' ', '
' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = [ '' ].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 = '
' 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 = '
' 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 = '
' 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 = '
' 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 = '
' const div = fixtureEl.querySelector('div') expect(Dropdown.getInstance(div)).toBeNull() }) }) describe('getOrCreateInstance', () => { it('should return dropdown instance', () => { fixtureEl.innerHTML = '
' 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 = '
' 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 = '
' 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 = '
' 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 = [ '' ].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 = [ '' ].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 = [ '
', ' ', '
' ].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() }) }) })