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Bootstrap/js/tests/unit/tab.spec.js
GeoSot d49d8ce583
Ensure Tab keyboard functionality after #37146 (#37200)
* fix: keyboard functionality

* test: add tests

* Add some focus spies in 2 other unit tests

Co-authored-by: Julien Déramond <juderamond@gmail.com>
2022-10-02 13:05:30 +03:00

1102 lines
42 KiB
JavaScript

import Tab from '../../src/tab'
import { clearFixture, createEvent, getFixture, jQueryMock } from '../helpers/fixture'
describe('Tab', () => {
let fixtureEl
beforeAll(() => {
fixtureEl = getFixture()
})
afterEach(() => {
clearFixture()
})
describe('VERSION', () => {
it('should return plugin version', () => {
expect(Tab.VERSION).toEqual(jasmine.any(String))
})
})
describe('constructor', () => {
it('should take care of element either passed as a CSS selector or DOM element', () => {
fixtureEl.innerHTML = [
'<ul class="nav">',
' <li><a href="#home" role="tab">Home</a></li>',
'</ul>',
'<ul>',
' <li id="home"></li>',
'</ul>'
].join('')
const tabEl = fixtureEl.querySelector('[href="#home"]')
const tabBySelector = new Tab('[href="#home"]')
const tabByElement = new Tab(tabEl)
expect(tabBySelector._element).toEqual(tabEl)
expect(tabByElement._element).toEqual(tabEl)
})
it('Do not Throw exception if not parent', () => {
fixtureEl.innerHTML = [
fixtureEl.innerHTML = '<div class=""><div class="nav-link"></div></div>'
].join('')
const navEl = fixtureEl.querySelector('.nav-link')
expect(() => {
new Tab(navEl) // eslint-disable-line no-new
}).not.toThrowError(TypeError)
})
})
describe('show', () => {
it('should activate element by tab id (using buttons, the preferred semantic way)', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ul class="nav" role="tablist">',
' <li><button type="button" data-bs-target="#home" role="tab">Home</button></li>',
' <li><button type="button" id="triggerProfile" data-bs-target="#profile" role="tab">Profile</button></li>',
'</ul>',
'<ul>',
' <li id="home" role="tabpanel"></li>',
' <li id="profile" role="tabpanel"></li>',
'</ul>'
].join('')
const profileTriggerEl = fixtureEl.querySelector('#triggerProfile')
const tab = new Tab(profileTriggerEl)
profileTriggerEl.addEventListener('shown.bs.tab', () => {
expect(fixtureEl.querySelector('#profile')).toHaveClass('active')
expect(profileTriggerEl.getAttribute('aria-selected')).toEqual('true')
resolve()
})
tab.show()
})
})
it('should activate element by tab id (using links for tabs - not ideal, but still supported)', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ul class="nav" role="tablist">',
' <li><a href="#home" role="tab">Home</a></li>',
' <li><a id="triggerProfile" href="#profile" role="tab">Profile</a></li>',
'</ul>',
'<ul>',
' <li id="home" role="tabpanel"></li>',
' <li id="profile" role="tabpanel"></li>',
'</ul>'
].join('')
const profileTriggerEl = fixtureEl.querySelector('#triggerProfile')
const tab = new Tab(profileTriggerEl)
profileTriggerEl.addEventListener('shown.bs.tab', () => {
expect(fixtureEl.querySelector('#profile')).toHaveClass('active')
expect(profileTriggerEl.getAttribute('aria-selected')).toEqual('true')
resolve()
})
tab.show()
})
})
it('should activate element by tab id in ordered list', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ol class="nav nav-pills">',
' <li><button type="button" data-bs-target="#home" role="tab">Home</button></li>',
' <li><button type="button" id="triggerProfile" href="#profile" role="tab">Profile</button></li>',
'</ol>',
'<ol>',
' <li id="home" role="tabpanel"></li>',
' <li id="profile" role="tabpanel"></li>',
'</ol>'
].join('')
const profileTriggerEl = fixtureEl.querySelector('#triggerProfile')
const tab = new Tab(profileTriggerEl)
profileTriggerEl.addEventListener('shown.bs.tab', () => {
expect(fixtureEl.querySelector('#profile')).toHaveClass('active')
resolve()
})
tab.show()
})
})
it('should activate element by tab id in nav list', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<nav class="nav">',
' <button type="button" data-bs-target="#home" role="tab">Home</button>',
' <button type="button" id="triggerProfile" data-bs-target="#profile" role="tab">Profile</button>',
'</nav>',
'<div>',
' <div id="home" role="tabpanel"></div>',
' <div id="profile" role="tabpanel"></div>',
'</div>'
].join('')
const profileTriggerEl = fixtureEl.querySelector('#triggerProfile')
const tab = new Tab(profileTriggerEl)
profileTriggerEl.addEventListener('shown.bs.tab', () => {
expect(fixtureEl.querySelector('#profile')).toHaveClass('active')
resolve()
})
tab.show()
})
})
it('should activate element by tab id in list group', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<div class="list-group" role="tablist">',
' <button type="button" data-bs-target="#home" role="tab">Home</button>',
' <button type="button" id="triggerProfile" data-bs-target="#profile" role="tab">Profile</button>',
'</div>',
'<div>',
' <div id="home" role="tabpanel"></div>',
' <div id="profile" role="tabpanel"></div>',
'</div>'
].join('')
const profileTriggerEl = fixtureEl.querySelector('#triggerProfile')
const tab = new Tab(profileTriggerEl)
profileTriggerEl.addEventListener('shown.bs.tab', () => {
expect(fixtureEl.querySelector('#profile')).toHaveClass('active')
resolve()
})
tab.show()
})
})
it('should not fire shown when show is prevented', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = '<div class="nav"><div class="nav-link"></div></div>'
const navEl = fixtureEl.querySelector('.nav > div')
const tab = new Tab(navEl)
const expectDone = () => {
setTimeout(() => {
expect().nothing()
resolve()
}, 30)
}
navEl.addEventListener('show.bs.tab', ev => {
ev.preventDefault()
expectDone()
})
navEl.addEventListener('shown.bs.tab', () => {
reject(new Error('should not trigger shown event'))
})
tab.show()
})
})
it('should not fire shown when tab is already active', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<ul class="nav nav-tabs" role="tablist">',
' <li class="nav-item" role="presentation"><button type="button" data-bs-target="#home" class="nav-link active" role="tab" aria-selected="true">Home</button></li>',
' <li class="nav-item" role="presentation"><button type="button" data-bs-target="#profile" class="nav-link" role="tab">Profile</button></li>',
'</ul>',
'<div class="tab-content">',
' <div class="tab-pane active" id="home" role="tabpanel"></div>',
' <div class="tab-pane" id="profile" role="tabpanel"></div>',
'</div>'
].join('')
const triggerActive = fixtureEl.querySelector('button.active')
const tab = new Tab(triggerActive)
triggerActive.addEventListener('shown.bs.tab', () => {
reject(new Error('should not trigger shown event'))
})
tab.show()
setTimeout(() => {
expect().nothing()
resolve()
}, 30)
})
})
it('show and shown events should reference correct relatedTarget', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ul class="nav nav-tabs" role="tablist">',
' <li class="nav-item" role="presentation"><button type="button" data-bs-target="#home" class="nav-link active" role="tab" aria-selected="true">Home</button></li>',
' <li class="nav-item" role="presentation"><button type="button" id="triggerProfile" data-bs-target="#profile" class="nav-link" role="tab">Profile</button></li>',
'</ul>',
'<div class="tab-content">',
' <div class="tab-pane active" id="home" role="tabpanel"></div>',
' <div class="tab-pane" id="profile" role="tabpanel"></div>',
'</div>'
].join('')
const secondTabTrigger = fixtureEl.querySelector('#triggerProfile')
const secondTab = new Tab(secondTabTrigger)
secondTabTrigger.addEventListener('show.bs.tab', ev => {
expect(ev.relatedTarget.getAttribute('data-bs-target')).toEqual('#home')
})
secondTabTrigger.addEventListener('shown.bs.tab', ev => {
expect(ev.relatedTarget.getAttribute('data-bs-target')).toEqual('#home')
expect(secondTabTrigger.getAttribute('aria-selected')).toEqual('true')
expect(fixtureEl.querySelector('button:not(.active)').getAttribute('aria-selected')).toEqual('false')
resolve()
})
secondTab.show()
})
})
it('should fire hide and hidden events', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ul class="nav" role="tablist">',
' <li><button type="button" data-bs-target="#home" role="tab">Home</button></li>',
' <li><button type="button" data-bs-target="#profile" role="tab">Profile</button></li>',
'</ul>'
].join('')
const triggerList = fixtureEl.querySelectorAll('button')
const firstTab = new Tab(triggerList[0])
const secondTab = new Tab(triggerList[1])
let hideCalled = false
triggerList[0].addEventListener('shown.bs.tab', () => {
secondTab.show()
})
triggerList[0].addEventListener('hide.bs.tab', ev => {
hideCalled = true
expect(ev.relatedTarget.getAttribute('data-bs-target')).toEqual('#profile')
})
triggerList[0].addEventListener('hidden.bs.tab', ev => {
expect(hideCalled).toBeTrue()
expect(ev.relatedTarget.getAttribute('data-bs-target')).toEqual('#profile')
resolve()
})
firstTab.show()
})
})
it('should not fire hidden when hide is prevented', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<ul class="nav" role="tablist">',
' <li><button type="button" data-bs-target="#home" role="tab">Home</button></li>',
' <li><button type="button" data-bs-target="#profile" role="tab">Profile</button></li>',
'</ul>'
].join('')
const triggerList = fixtureEl.querySelectorAll('button')
const firstTab = new Tab(triggerList[0])
const secondTab = new Tab(triggerList[1])
const expectDone = () => {
setTimeout(() => {
expect().nothing()
resolve()
}, 30)
}
triggerList[0].addEventListener('shown.bs.tab', () => {
secondTab.show()
})
triggerList[0].addEventListener('hide.bs.tab', ev => {
ev.preventDefault()
expectDone()
})
triggerList[0].addEventListener('hidden.bs.tab', () => {
reject(new Error('should not trigger hidden'))
})
firstTab.show()
})
})
it('should handle removed tabs', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ul class="nav nav-tabs" role="tablist">',
' <li class="nav-item" role="presentation">',
' <a class="nav-link nav-tab" href="#profile" role="tab" data-bs-toggle="tab">',
' <button class="btn-close" aria-label="Close"></button>',
' </a>',
' </li>',
' <li class="nav-item" role="presentation">',
' <a id="secondNav" class="nav-link nav-tab" href="#buzz" role="tab" data-bs-toggle="tab">',
' <button class="btn-close" aria-label="Close"></button>',
' </a>',
' </li>',
' <li class="nav-item" role="presentation">',
' <a class="nav-link nav-tab" href="#references" role="tab" data-bs-toggle="tab">',
' <button id="btnClose" class="btn-close" aria-label="Close"></button>',
' </a>',
' </li>',
'</ul>',
'<div class="tab-content">',
' <div role="tabpanel" class="tab-pane fade show active" id="profile">test 1</div>',
' <div role="tabpanel" class="tab-pane fade" id="buzz">test 2</div>',
' <div role="tabpanel" class="tab-pane fade" id="references">test 3</div>',
'</div>'
].join('')
const secondNavEl = fixtureEl.querySelector('#secondNav')
const btnCloseEl = fixtureEl.querySelector('#btnClose')
const secondNavTab = new Tab(secondNavEl)
secondNavEl.addEventListener('shown.bs.tab', () => {
expect(fixtureEl.querySelectorAll('.nav-tab')).toHaveSize(2)
resolve()
})
btnCloseEl.addEventListener('click', () => {
const linkEl = btnCloseEl.parentNode
const liEl = linkEl.parentNode
const tabId = linkEl.getAttribute('href')
const tabIdEl = fixtureEl.querySelector(tabId)
liEl.remove()
tabIdEl.remove()
secondNavTab.show()
})
btnCloseEl.click()
})
})
it('should not focus on opened tab', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ul class="nav" role="tablist">',
' <li><button type="button" id="home" data-bs-target="#home" role="tab">Home</button></li>',
' <li><button type="button" id="triggerProfile" data-bs-target="#profile" role="tab">Profile</button></li>',
'</ul>',
'<ul>',
' <li id="home" role="tabpanel"></li>',
' <li id="profile" role="tabpanel"></li>',
'</ul>'
].join('')
const firstTab = fixtureEl.querySelector('#home')
firstTab.focus()
const profileTriggerEl = fixtureEl.querySelector('#triggerProfile')
const tab = new Tab(profileTriggerEl)
profileTriggerEl.addEventListener('shown.bs.tab', () => {
expect(document.activeElement).toBe(firstTab)
expect(document.activeElement).not.toBe(profileTriggerEl)
resolve()
})
tab.show()
})
})
})
describe('dispose', () => {
it('should dispose a tab', () => {
fixtureEl.innerHTML = '<div class="nav"><div class="nav-link"></div></div>'
const el = fixtureEl.querySelector('.nav > div')
const tab = new Tab(fixtureEl.querySelector('.nav > div'))
expect(Tab.getInstance(el)).not.toBeNull()
tab.dispose()
expect(Tab.getInstance(el)).toBeNull()
})
})
describe('_activate', () => {
it('should not be called if element argument is null', () => {
fixtureEl.innerHTML = [
'<ul class="nav" role="tablist">',
' <li class="nav-link"></li>',
'</ul>'
].join('')
const tabEl = fixtureEl.querySelector('.nav-link')
const tab = new Tab(tabEl)
const spy = jasmine.createSpy('spy')
const spyQueue = spyOn(tab, '_queueCallback')
tab._activate(null, spy)
expect(spyQueue).not.toHaveBeenCalled()
expect(spy).not.toHaveBeenCalled()
})
})
describe('_setInitialAttributes', () => {
it('should put aria attributes', () => {
fixtureEl.innerHTML = [
'<ul class="nav">',
' <li class="nav-link" id="foo" data-bs-target="#panel"></li>',
' <li class="nav-link" data-bs-target="#panel2"></li>',
'</ul>',
'<div id="panel"></div>',
'<div id="panel2"></div>'
].join('')
const tabEl = fixtureEl.querySelector('.nav-link')
const parent = fixtureEl.querySelector('.nav')
const children = fixtureEl.querySelectorAll('.nav-link')
const tabPanel = fixtureEl.querySelector('#panel')
const tabPanel2 = fixtureEl.querySelector('#panel2')
expect(parent.getAttribute('role')).toEqual(null)
expect(tabEl.getAttribute('role')).toEqual(null)
expect(tabPanel.getAttribute('role')).toEqual(null)
const tab = new Tab(tabEl)
tab._setInitialAttributes(parent, children)
expect(parent.getAttribute('role')).toEqual('tablist')
expect(tabEl.getAttribute('role')).toEqual('tab')
expect(tabPanel.getAttribute('role')).toEqual('tabpanel')
expect(tabPanel2.getAttribute('role')).toEqual('tabpanel')
expect(tabPanel.hasAttribute('tabindex')).toBeFalse()
expect(tabPanel.hasAttribute('tabindex2')).toBeFalse()
expect(tabPanel.getAttribute('aria-labelledby')).toEqual('#foo')
expect(tabPanel2.hasAttribute('aria-labelledby')).toBeFalse()
})
})
describe('_keydown', () => {
it('if event is not one of left/right/up/down arrow, ignore it', () => {
fixtureEl.innerHTML = [
'<ul class="nav">',
' <li class="nav-link" data-bs-toggle="tab"></li>',
'</ul>'
].join('')
const tabEl = fixtureEl.querySelector('.nav-link')
const tab = new Tab(tabEl)
const keydown = createEvent('keydown')
keydown.key = 'Enter'
const spyStop = spyOn(Event.prototype, 'stopPropagation').and.callThrough()
const spyPrevent = spyOn(Event.prototype, 'preventDefault').and.callThrough()
const spyKeydown = spyOn(tab, '_keydown')
const spyGet = spyOn(tab, '_getChildren')
tabEl.dispatchEvent(keydown)
expect(spyKeydown).toHaveBeenCalled()
expect(spyGet).not.toHaveBeenCalled()
expect(spyStop).not.toHaveBeenCalled()
expect(spyPrevent).not.toHaveBeenCalled()
})
it('if keydown event is right/down arrow, handle it', () => {
fixtureEl.innerHTML = [
'<div class="nav">',
' <span id="tab1" class="nav-link" data-bs-toggle="tab"></span>',
' <span id="tab2" class="nav-link" data-bs-toggle="tab"></span>',
' <span id="tab3" class="nav-link" data-bs-toggle="tab"></span>',
'</div>'
].join('')
const tabEl1 = fixtureEl.querySelector('#tab1')
const tabEl2 = fixtureEl.querySelector('#tab2')
const tabEl3 = fixtureEl.querySelector('#tab3')
const tab1 = new Tab(tabEl1)
const tab2 = new Tab(tabEl2)
const tab3 = new Tab(tabEl3)
const spyShow1 = spyOn(tab1, 'show').and.callThrough()
const spyShow2 = spyOn(tab2, 'show').and.callThrough()
const spyShow3 = spyOn(tab3, 'show').and.callThrough()
const spyFocus1 = spyOn(tabEl1, 'focus').and.callThrough()
const spyFocus2 = spyOn(tabEl2, 'focus').and.callThrough()
const spyFocus3 = spyOn(tabEl3, 'focus').and.callThrough()
const spyStop = spyOn(Event.prototype, 'stopPropagation').and.callThrough()
const spyPrevent = spyOn(Event.prototype, 'preventDefault').and.callThrough()
let keydown = createEvent('keydown')
keydown.key = 'ArrowRight'
tabEl1.dispatchEvent(keydown)
expect(spyShow2).toHaveBeenCalled()
expect(spyFocus2).toHaveBeenCalled()
keydown = createEvent('keydown')
keydown.key = 'ArrowDown'
tabEl2.dispatchEvent(keydown)
expect(spyShow3).toHaveBeenCalled()
expect(spyFocus3).toHaveBeenCalled()
tabEl3.dispatchEvent(keydown)
expect(spyShow1).toHaveBeenCalled()
expect(spyFocus1).toHaveBeenCalled()
expect(spyStop).toHaveBeenCalledTimes(3)
expect(spyPrevent).toHaveBeenCalledTimes(3)
})
it('if keydown event is left arrow, handle it', () => {
fixtureEl.innerHTML = [
'<div class="nav">',
' <span id="tab1" class="nav-link" data-bs-toggle="tab"></span>',
' <span id="tab2" class="nav-link" data-bs-toggle="tab"></span>',
'</div>'
].join('')
const tabEl1 = fixtureEl.querySelector('#tab1')
const tabEl2 = fixtureEl.querySelector('#tab2')
const tab1 = new Tab(tabEl1)
const tab2 = new Tab(tabEl2)
const spyShow1 = spyOn(tab1, 'show').and.callThrough()
const spyShow2 = spyOn(tab2, 'show').and.callThrough()
const spyFocus1 = spyOn(tabEl1, 'focus').and.callThrough()
const spyFocus2 = spyOn(tabEl2, 'focus').and.callThrough()
const spyStop = spyOn(Event.prototype, 'stopPropagation').and.callThrough()
const spyPrevent = spyOn(Event.prototype, 'preventDefault').and.callThrough()
let keydown = createEvent('keydown')
keydown.key = 'ArrowLeft'
tabEl2.dispatchEvent(keydown)
expect(spyShow1).toHaveBeenCalled()
expect(spyFocus1).toHaveBeenCalled()
keydown = createEvent('keydown')
keydown.key = 'ArrowUp'
tabEl1.dispatchEvent(keydown)
expect(spyShow2).toHaveBeenCalled()
expect(spyFocus2).toHaveBeenCalled()
expect(spyStop).toHaveBeenCalledTimes(2)
expect(spyPrevent).toHaveBeenCalledTimes(2)
})
it('if keydown event is right arrow and next element is disabled', () => {
fixtureEl.innerHTML = [
'<div class="nav">',
' <span id="tab1" class="nav-link" data-bs-toggle="tab"></span>',
' <span id="tab2" class="nav-link" data-bs-toggle="tab" disabled></span>',
' <span id="tab3" class="nav-link disabled" data-bs-toggle="tab"></span>',
' <span id="tab4" class="nav-link" data-bs-toggle="tab"></span>',
'</div>'
].join('')
const tabEl = fixtureEl.querySelector('#tab1')
const tabEl2 = fixtureEl.querySelector('#tab2')
const tabEl3 = fixtureEl.querySelector('#tab3')
const tabEl4 = fixtureEl.querySelector('#tab4')
const tab = new Tab(tabEl)
const tab2 = new Tab(tabEl2)
const tab3 = new Tab(tabEl3)
const tab4 = new Tab(tabEl4)
const spy1 = spyOn(tab, 'show').and.callThrough()
const spy2 = spyOn(tab2, 'show').and.callThrough()
const spy3 = spyOn(tab3, 'show').and.callThrough()
const spy4 = spyOn(tab4, 'show').and.callThrough()
const spyFocus1 = spyOn(tabEl, 'focus').and.callThrough()
const spyFocus2 = spyOn(tabEl2, 'focus').and.callThrough()
const spyFocus3 = spyOn(tabEl3, 'focus').and.callThrough()
const spyFocus4 = spyOn(tabEl4, 'focus').and.callThrough()
const keydown = createEvent('keydown')
keydown.key = 'ArrowRight'
tabEl.dispatchEvent(keydown)
expect(spy1).not.toHaveBeenCalled()
expect(spy2).not.toHaveBeenCalled()
expect(spy3).not.toHaveBeenCalled()
expect(spy4).toHaveBeenCalledTimes(1)
expect(spyFocus1).not.toHaveBeenCalled()
expect(spyFocus2).not.toHaveBeenCalled()
expect(spyFocus3).not.toHaveBeenCalled()
expect(spyFocus4).toHaveBeenCalledTimes(1)
})
it('if keydown event is left arrow and next element is disabled', () => {
fixtureEl.innerHTML = [
'<div class="nav">',
' <span id="tab1" class="nav-link" data-bs-toggle="tab"></span>',
' <span id="tab2" class="nav-link" data-bs-toggle="tab" disabled></span>',
' <span id="tab3" class="nav-link disabled" data-bs-toggle="tab"></span>',
' <span id="tab4" class="nav-link" data-bs-toggle="tab"></span>',
'</div>'
].join('')
const tabEl = fixtureEl.querySelector('#tab1')
const tabEl2 = fixtureEl.querySelector('#tab2')
const tabEl3 = fixtureEl.querySelector('#tab3')
const tabEl4 = fixtureEl.querySelector('#tab4')
const tab = new Tab(tabEl)
const tab2 = new Tab(tabEl2)
const tab3 = new Tab(tabEl3)
const tab4 = new Tab(tabEl4)
const spy1 = spyOn(tab, 'show').and.callThrough()
const spy2 = spyOn(tab2, 'show').and.callThrough()
const spy3 = spyOn(tab3, 'show').and.callThrough()
const spy4 = spyOn(tab4, 'show').and.callThrough()
const spyFocus1 = spyOn(tabEl, 'focus').and.callThrough()
const spyFocus2 = spyOn(tabEl2, 'focus').and.callThrough()
const spyFocus3 = spyOn(tabEl3, 'focus').and.callThrough()
const spyFocus4 = spyOn(tabEl4, 'focus').and.callThrough()
const keydown = createEvent('keydown')
keydown.key = 'ArrowLeft'
tabEl4.dispatchEvent(keydown)
expect(spy4).not.toHaveBeenCalled()
expect(spy3).not.toHaveBeenCalled()
expect(spy2).not.toHaveBeenCalled()
expect(spy1).toHaveBeenCalledTimes(1)
expect(spyFocus4).not.toHaveBeenCalled()
expect(spyFocus3).not.toHaveBeenCalled()
expect(spyFocus2).not.toHaveBeenCalled()
expect(spyFocus1).toHaveBeenCalledTimes(1)
})
})
describe('jQueryInterface', () => {
it('should create a tab', () => {
fixtureEl.innerHTML = '<div class="nav"><div class="nav-link"></div></div>'
const div = fixtureEl.querySelector('.nav > div')
jQueryMock.fn.tab = Tab.jQueryInterface
jQueryMock.elements = [div]
jQueryMock.fn.tab.call(jQueryMock)
expect(Tab.getInstance(div)).not.toBeNull()
})
it('should not re create a tab', () => {
fixtureEl.innerHTML = '<div class="nav"><div class="nav-link"></div></div>'
const div = fixtureEl.querySelector('.nav > div')
const tab = new Tab(div)
jQueryMock.fn.tab = Tab.jQueryInterface
jQueryMock.elements = [div]
jQueryMock.fn.tab.call(jQueryMock)
expect(Tab.getInstance(div)).toEqual(tab)
})
it('should call a tab method', () => {
fixtureEl.innerHTML = '<div class="nav"><div class="nav-link"></div></div>'
const div = fixtureEl.querySelector('.nav > div')
const tab = new Tab(div)
const spy = spyOn(tab, 'show')
jQueryMock.fn.tab = Tab.jQueryInterface
jQueryMock.elements = [div]
jQueryMock.fn.tab.call(jQueryMock, 'show')
expect(Tab.getInstance(div)).toEqual(tab)
expect(spy).toHaveBeenCalled()
})
it('should throw error on undefined method', () => {
fixtureEl.innerHTML = '<div class="nav"><div class="nav-link"></div></div>'
const div = fixtureEl.querySelector('.nav > div')
const action = 'undefinedMethod'
jQueryMock.fn.tab = Tab.jQueryInterface
jQueryMock.elements = [div]
expect(() => {
jQueryMock.fn.tab.call(jQueryMock, action)
}).toThrowError(TypeError, `No method named "${action}"`)
})
})
describe('getInstance', () => {
it('should return null if there is no instance', () => {
expect(Tab.getInstance(fixtureEl)).toBeNull()
})
it('should return this instance', () => {
fixtureEl.innerHTML = '<div class="nav"><div class="nav-link"></div></div>'
const divEl = fixtureEl.querySelector('.nav > div')
const tab = new Tab(divEl)
expect(Tab.getInstance(divEl)).toEqual(tab)
expect(Tab.getInstance(divEl)).toBeInstanceOf(Tab)
})
})
describe('getOrCreateInstance', () => {
it('should return tab instance', () => {
fixtureEl.innerHTML = '<div class="nav"><div class="nav-link"></div></div>'
const div = fixtureEl.querySelector('div')
const tab = new Tab(div)
expect(Tab.getOrCreateInstance(div)).toEqual(tab)
expect(Tab.getInstance(div)).toEqual(Tab.getOrCreateInstance(div, {}))
expect(Tab.getOrCreateInstance(div)).toBeInstanceOf(Tab)
})
it('should return new instance when there is no tab instance', () => {
fixtureEl.innerHTML = '<div class="nav"><div class="nav-link"></div></div>'
const div = fixtureEl.querySelector('div')
expect(Tab.getInstance(div)).toBeNull()
expect(Tab.getOrCreateInstance(div)).toBeInstanceOf(Tab)
})
})
describe('data-api', () => {
it('should create dynamically a tab', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ul class="nav nav-tabs" role="tablist">',
' <li class="nav-item" role="presentation"><button type="button" data-bs-target="#home" class="nav-link active" role="tab" aria-selected="true">Home</button></li>',
' <li class="nav-item" role="presentation"><button type="button" id="triggerProfile" data-bs-toggle="tab" data-bs-target="#profile" class="nav-link" role="tab">Profile</button></li>',
'</ul>',
'<div class="tab-content">',
' <div class="tab-pane active" id="home" role="tabpanel"></div>',
' <div class="tab-pane" id="profile" role="tabpanel"></div>',
'</div>'
].join('')
const secondTabTrigger = fixtureEl.querySelector('#triggerProfile')
secondTabTrigger.addEventListener('shown.bs.tab', () => {
expect(secondTabTrigger).toHaveClass('active')
expect(fixtureEl.querySelector('#profile')).toHaveClass('active')
resolve()
})
secondTabTrigger.click()
})
})
it('selected tab should deactivate previous selected link in dropdown', () => {
fixtureEl.innerHTML = [
'<ul class="nav nav-tabs">',
' <li class="nav-item"><a class="nav-link" href="#home" data-bs-toggle="tab">Home</a></li>',
' <li class="nav-item"><a class="nav-link" href="#profile" data-bs-toggle="tab">Profile</a></li>',
' <li class="nav-item dropdown">',
' <a class="nav-link dropdown-toggle active" data-bs-toggle="dropdown" href="#">Dropdown</a>',
' <div class="dropdown-menu">',
' <a class="dropdown-item active" href="#dropdown1" id="dropdown1-tab" data-bs-toggle="tab">@fat</a>',
' <a class="dropdown-item" href="#dropdown2" id="dropdown2-tab" data-bs-toggle="tab">@mdo</a>',
' </div>',
' </li>',
'</ul>'
].join('')
const firstLiLinkEl = fixtureEl.querySelector('li:first-child a')
firstLiLinkEl.click()
expect(firstLiLinkEl).toHaveClass('active')
expect(fixtureEl.querySelector('li:last-child a')).not.toHaveClass('active')
expect(fixtureEl.querySelector('li:last-child .dropdown-menu a:first-child')).not.toHaveClass('active')
})
it('selecting a dropdown tab does not activate another', () => {
const nav1 = [
'<ul class="nav nav-tabs" id="nav1">',
' <li class="nav-item active"><a class="nav-link" href="#home" data-bs-toggle="tab">Home</a></li>',
' <li class="nav-item dropdown">',
' <a class="nav-link dropdown-toggle" data-bs-toggle="dropdown" href="#">Dropdown</a>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#dropdown1" id="dropdown1-tab" data-bs-toggle="tab">@fat</a>',
' </div>',
' </li>',
'</ul>'
].join('')
const nav2 = [
'<ul class="nav nav-tabs" id="nav2">',
' <li class="nav-item active"><a class="nav-link" href="#home" data-bs-toggle="tab">Home</a></li>',
' <li class="nav-item dropdown">',
' <a class="nav-link dropdown-toggle" data-bs-toggle="dropdown" href="#">Dropdown</a>',
' <div class="dropdown-menu">',
' <a class="dropdown-item" href="#dropdown1" id="dropdown1-tab" data-bs-toggle="tab">@fat</a>',
' </div>',
' </li>',
'</ul>'
].join('')
fixtureEl.innerHTML = nav1 + nav2
const firstDropItem = fixtureEl.querySelector('#nav1 .dropdown-item')
firstDropItem.click()
expect(firstDropItem).toHaveClass('active')
expect(fixtureEl.querySelector('#nav1 .dropdown-toggle')).toHaveClass('active')
expect(fixtureEl.querySelector('#nav2 .dropdown-toggle')).not.toHaveClass('active')
expect(fixtureEl.querySelector('#nav2 .dropdown-item')).not.toHaveClass('active')
})
it('should support li > .dropdown-item', () => {
fixtureEl.innerHTML = [
'<ul class="nav nav-tabs">',
' <li class="nav-item"><a class="nav-link active" href="#home" data-bs-toggle="tab">Home</a></li>',
' <li class="nav-item"><a class="nav-link" href="#profile" data-bs-toggle="tab">Profile</a></li>',
' <li class="nav-item dropdown">',
' <a class="nav-link dropdown-toggle" data-bs-toggle="dropdown" href="#">Dropdown</a>',
' <ul class="dropdown-menu">',
' <li><a class="dropdown-item" href="#dropdown1" id="dropdown1-tab" data-bs-toggle="tab">@fat</a></li>',
' <li><a class="dropdown-item" href="#dropdown2" id="dropdown2-tab" data-bs-toggle="tab">@mdo</a></li>',
' </ul>',
' </li>',
'</ul>'
].join('')
const dropItems = fixtureEl.querySelectorAll('.dropdown-item')
dropItems[1].click()
expect(dropItems[0]).not.toHaveClass('active')
expect(dropItems[1]).toHaveClass('active')
expect(fixtureEl.querySelector('.nav-link')).not.toHaveClass('active')
})
it('should handle nested tabs', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<nav class="nav nav-tabs" role="tablist">',
' <button type="button" id="tab1" data-bs-target="#x-tab1" class="nav-link" data-bs-toggle="tab" role="tab" aria-controls="x-tab1">Tab 1</button>',
' <button type="button" data-bs-target="#x-tab2" class="nav-link active" data-bs-toggle="tab" role="tab" aria-controls="x-tab2" aria-selected="true">Tab 2</button>',
' <button type="button" data-bs-target="#x-tab3" class="nav-link" data-bs-toggle="tab" role="tab" aria-controls="x-tab3">Tab 3</button>',
'</nav>',
'<div class="tab-content">',
' <div class="tab-pane" id="x-tab1" role="tabpanel">',
' <nav class="nav nav-tabs" role="tablist">',
' <button type="button" data-bs-target="#nested-tab1" class="nav-link active" data-bs-toggle="tab" role="tab" aria-controls="x-tab1" aria-selected="true">Nested Tab 1</button>',
' <button type="button" id="tabNested2" data-bs-target="#nested-tab2" class="nav-link" data-bs-toggle="tab" role="tab" aria-controls="x-profile">Nested Tab2</button>',
' </nav>',
' <div class="tab-content">',
' <div class="tab-pane active" id="nested-tab1" role="tabpanel">Nested Tab1 Content</div>',
' <div class="tab-pane" id="nested-tab2" role="tabpanel">Nested Tab2 Content</div>',
' </div>',
' </div>',
' <div class="tab-pane active" id="x-tab2" role="tabpanel">Tab2 Content</div>',
' <div class="tab-pane" id="x-tab3" role="tabpanel">Tab3 Content</div>',
'</div>'
].join('')
const tab1El = fixtureEl.querySelector('#tab1')
const tabNested2El = fixtureEl.querySelector('#tabNested2')
const xTab1El = fixtureEl.querySelector('#x-tab1')
tabNested2El.addEventListener('shown.bs.tab', () => {
expect(xTab1El).toHaveClass('active')
resolve()
})
tab1El.addEventListener('shown.bs.tab', () => {
expect(xTab1El).toHaveClass('active')
tabNested2El.click()
})
tab1El.click()
})
})
it('should not remove fade class if no active pane is present', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ul class="nav nav-tabs" role="tablist">',
' <li class="nav-item" role="presentation"><button type="button" id="tab-home" data-bs-target="#home" class="nav-link" data-bs-toggle="tab" role="tab">Home</button></li>',
' <li class="nav-item" role="presentation"><button type="button" id="tab-profile" data-bs-target="#profile" class="nav-link" data-bs-toggle="tab" role="tab">Profile</button></li>',
'</ul>',
'<div class="tab-content">',
' <div class="tab-pane fade" id="home" role="tabpanel"></div>',
' <div class="tab-pane fade" id="profile" role="tabpanel"></div>',
'</div>'
].join('')
const triggerTabProfileEl = fixtureEl.querySelector('#tab-profile')
const triggerTabHomeEl = fixtureEl.querySelector('#tab-home')
const tabProfileEl = fixtureEl.querySelector('#profile')
const tabHomeEl = fixtureEl.querySelector('#home')
triggerTabHomeEl.addEventListener('shown.bs.tab', () => {
setTimeout(() => {
expect(tabProfileEl).toHaveClass('fade')
expect(tabProfileEl).not.toHaveClass('show')
expect(tabHomeEl).toHaveClass('fade')
expect(tabHomeEl).toHaveClass('show')
resolve()
}, 10)
})
triggerTabProfileEl.addEventListener('shown.bs.tab', () => {
setTimeout(() => {
expect(tabProfileEl).toHaveClass('fade')
expect(tabProfileEl).toHaveClass('show')
triggerTabHomeEl.click()
}, 10)
})
triggerTabProfileEl.click()
})
})
it('should add `show` class to tab panes if there is no `.fade` class', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ul class="nav nav-tabs" role="tablist">',
' <li class="nav-item" role="presentation">',
' <button type="button" class="nav-link nav-tab" data-bs-target="#home" role="tab" data-bs-toggle="tab">Home</button>',
' </li>',
' <li class="nav-item" role="presentation">',
' <button type="button" id="secondNav" class="nav-link nav-tab" data-bs-target="#profile" role="tab" data-bs-toggle="tab">Profile</button>',
' </li>',
'</ul>',
'<div class="tab-content">',
' <div role="tabpanel" class="tab-pane" id="home">test 1</div>',
' <div role="tabpanel" class="tab-pane" id="profile">test 2</div>',
'</div>'
].join('')
const secondNavEl = fixtureEl.querySelector('#secondNav')
secondNavEl.addEventListener('shown.bs.tab', () => {
expect(fixtureEl.querySelectorAll('.tab-content .show')).toHaveSize(1)
resolve()
})
secondNavEl.click()
})
})
it('should add show class to tab panes if there is a `.fade` class', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ul class="nav nav-tabs" role="tablist">',
' <li class="nav-item" role="presentation">',
' <button type="button" class="nav-link nav-tab" data-bs-target="#home" role="tab" data-bs-toggle="tab">Home</button>',
' </li>',
' <li class="nav-item" role="presentation">',
' <button type="button" id="secondNav" class="nav-link nav-tab" data-bs-target="#profile" role="tab" data-bs-toggle="tab">Profile</button>',
' </li>',
'</ul>',
'<div class="tab-content">',
' <div role="tabpanel" class="tab-pane fade" id="home">test 1</div>',
' <div role="tabpanel" class="tab-pane fade" id="profile">test 2</div>',
'</div>'
].join('')
const secondNavEl = fixtureEl.querySelector('#secondNav')
secondNavEl.addEventListener('shown.bs.tab', () => {
setTimeout(() => {
expect(fixtureEl.querySelectorAll('.show')).toHaveSize(1)
resolve()
}, 10)
})
secondNavEl.click()
})
})
it('should prevent default when the trigger is <a> or <area>', () => {
return new Promise(resolve => {
fixtureEl.innerHTML = [
'<ul class="nav" role="tablist">',
' <li><a type="button" href="#test" class="active" role="tab" data-bs-toggle="tab">Home</a></li>',
' <li><a type="button" href="#test2" role="tab" data-bs-toggle="tab">Home</a></li>',
'</ul>'
].join('')
const tabEl = fixtureEl.querySelector('[href="#test2"]')
const spy = spyOn(Event.prototype, 'preventDefault').and.callThrough()
tabEl.addEventListener('shown.bs.tab', () => {
expect(tabEl).toHaveClass('active')
expect(spy).toHaveBeenCalled()
resolve()
})
tabEl.click()
})
})
it('should not fire shown when tab has disabled attribute', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<ul class="nav nav-tabs" role="tablist">',
' <li class="nav-item" role="presentation"><button type="button" data-bs-target="#home" class="nav-link active" role="tab" aria-selected="true">Home</button></li>',
' <li class="nav-item" role="presentation"><button type="button" data-bs-target="#profile" class="nav-link" disabled role="tab">Profile</button></li>',
'</ul>',
'<div class="tab-content">',
' <div class="tab-pane active" id="home" role="tabpanel"></div>',
' <div class="tab-pane" id="profile" role="tabpanel"></div>',
'</div>'
].join('')
const triggerDisabled = fixtureEl.querySelector('button[disabled]')
triggerDisabled.addEventListener('shown.bs.tab', () => {
reject(new Error('should not trigger shown event'))
})
triggerDisabled.click()
setTimeout(() => {
expect().nothing()
resolve()
}, 30)
})
})
it('should not fire shown when tab has disabled class', () => {
return new Promise((resolve, reject) => {
fixtureEl.innerHTML = [
'<ul class="nav nav-tabs" role="tablist">',
' <li class="nav-item" role="presentation"><a href="#home" class="nav-link active" role="tab" aria-selected="true">Home</a></li>',
' <li class="nav-item" role="presentation"><a href="#profile" class="nav-link disabled" role="tab">Profile</a></li>',
'</ul>',
'<div class="tab-content">',
' <div class="tab-pane active" id="home" role="tabpanel"></div>',
' <div class="tab-pane" id="profile" role="tabpanel"></div>',
'</div>'
].join('')
const triggerDisabled = fixtureEl.querySelector('a.disabled')
triggerDisabled.addEventListener('shown.bs.tab', () => {
reject(new Error('should not trigger shown event'))
})
triggerDisabled.click()
setTimeout(() => {
expect().nothing()
resolve()
}, 30)
})
})
})
})