mirror of
https://github.com/twbs/bootstrap.git
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815 lines
25 KiB
JavaScript
815 lines
25 KiB
JavaScript
import * as Util from '../../../src/util/index'
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import { clearFixture, getFixture } from '../../helpers/fixture'
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import { noop } from '../../../src/util/index'
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describe('Util', () => {
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let fixtureEl
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beforeAll(() => {
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fixtureEl = getFixture()
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})
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afterEach(() => {
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clearFixture()
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})
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describe('getUID', () => {
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it('should generate uid', () => {
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const uid = Util.getUID('bs')
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const uid2 = Util.getUID('bs')
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expect(uid).not.toEqual(uid2)
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})
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})
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describe('getSelectorFromElement', () => {
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it('should get selector from data-bs-target', () => {
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fixtureEl.innerHTML = [
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'<div id="test" data-bs-target=".target"></div>',
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'<div class="target"></div>'
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].join('')
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const testEl = fixtureEl.querySelector('#test')
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expect(Util.getSelectorFromElement(testEl)).toEqual('.target')
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})
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it('should get selector from href if no data-bs-target set', () => {
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fixtureEl.innerHTML = [
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'<a id="test" href=".target"></a>',
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'<div class="target"></div>'
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].join('')
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const testEl = fixtureEl.querySelector('#test')
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expect(Util.getSelectorFromElement(testEl)).toEqual('.target')
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})
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it('should get selector from href if data-bs-target equal to #', () => {
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fixtureEl.innerHTML = [
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'<a id="test" data-bs-target="#" href=".target"></a>',
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'<div class="target"></div>'
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].join('')
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const testEl = fixtureEl.querySelector('#test')
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expect(Util.getSelectorFromElement(testEl)).toEqual('.target')
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})
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it('should return null if a selector from a href is a url without an anchor', () => {
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fixtureEl.innerHTML = [
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'<a id="test" data-bs-target="#" href="foo/bar.html"></a>',
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'<div class="target"></div>'
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].join('')
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const testEl = fixtureEl.querySelector('#test')
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expect(Util.getSelectorFromElement(testEl)).toBeNull()
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})
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it('should return the anchor if a selector from a href is a url', () => {
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fixtureEl.innerHTML = [
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'<a id="test" data-bs-target="#" href="foo/bar.html#target"></a>',
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'<div id="target"></div>'
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].join('')
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const testEl = fixtureEl.querySelector('#test')
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expect(Util.getSelectorFromElement(testEl)).toEqual('#target')
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})
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it('should return null if selector not found', () => {
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fixtureEl.innerHTML = '<a id="test" href=".target"></a>'
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const testEl = fixtureEl.querySelector('#test')
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expect(Util.getSelectorFromElement(testEl)).toBeNull()
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})
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it('should return null if no selector', () => {
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fixtureEl.innerHTML = '<div></div>'
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const testEl = fixtureEl.querySelector('div')
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expect(Util.getSelectorFromElement(testEl)).toBeNull()
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})
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})
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describe('getElementFromSelector', () => {
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it('should get element from data-bs-target', () => {
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fixtureEl.innerHTML = [
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'<div id="test" data-bs-target=".target"></div>',
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'<div class="target"></div>'
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].join('')
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const testEl = fixtureEl.querySelector('#test')
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expect(Util.getElementFromSelector(testEl)).toEqual(fixtureEl.querySelector('.target'))
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})
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it('should get element from href if no data-bs-target set', () => {
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fixtureEl.innerHTML = [
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'<a id="test" href=".target"></a>',
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'<div class="target"></div>'
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].join('')
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const testEl = fixtureEl.querySelector('#test')
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expect(Util.getElementFromSelector(testEl)).toEqual(fixtureEl.querySelector('.target'))
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})
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it('should return null if element not found', () => {
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fixtureEl.innerHTML = '<a id="test" href=".target"></a>'
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const testEl = fixtureEl.querySelector('#test')
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expect(Util.getElementFromSelector(testEl)).toBeNull()
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})
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it('should return null if no selector', () => {
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fixtureEl.innerHTML = '<div></div>'
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const testEl = fixtureEl.querySelector('div')
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expect(Util.getElementFromSelector(testEl)).toBeNull()
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})
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})
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describe('getTransitionDurationFromElement', () => {
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it('should get transition from element', () => {
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fixtureEl.innerHTML = '<div style="transition: all 300ms ease-out;"></div>'
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expect(Util.getTransitionDurationFromElement(fixtureEl.querySelector('div'))).toEqual(300)
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})
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it('should return 0 if the element is undefined or null', () => {
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expect(Util.getTransitionDurationFromElement(null)).toEqual(0)
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expect(Util.getTransitionDurationFromElement(undefined)).toEqual(0)
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})
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it('should return 0 if the element do not possess transition', () => {
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fixtureEl.innerHTML = '<div></div>'
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expect(Util.getTransitionDurationFromElement(fixtureEl.querySelector('div'))).toEqual(0)
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})
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})
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describe('triggerTransitionEnd', () => {
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it('should trigger transitionend event', () => {
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return new Promise(resolve => {
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fixtureEl.innerHTML = '<div></div>'
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const el = fixtureEl.querySelector('div')
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const spy = spyOn(el, 'dispatchEvent').and.callThrough()
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el.addEventListener('transitionend', () => {
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expect(spy).toHaveBeenCalled()
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resolve()
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})
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Util.triggerTransitionEnd(el)
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})
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})
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})
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describe('isElement', () => {
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it('should detect if the parameter is an element or not and return Boolean', () => {
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fixtureEl.innerHTML = [
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'<div id="foo" class="test"></div>',
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'<div id="bar" class="test"></div>'
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].join('')
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const el = fixtureEl.querySelector('#foo')
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expect(Util.isElement(el)).toBeTrue()
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expect(Util.isElement({})).toBeFalse()
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expect(Util.isElement(fixtureEl.querySelectorAll('.test'))).toBeFalse()
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})
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it('should detect jQuery element', () => {
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fixtureEl.innerHTML = '<div></div>'
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const el = fixtureEl.querySelector('div')
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const fakejQuery = {
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0: el,
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jquery: 'foo'
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}
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expect(Util.isElement(fakejQuery)).toBeTrue()
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})
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})
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describe('getElement', () => {
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it('should try to parse element', () => {
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fixtureEl.innerHTML = [
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'<div id="foo" class="test"></div>',
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'<div id="bar" class="test"></div>'
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].join('')
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const el = fixtureEl.querySelector('div')
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expect(Util.getElement(el)).toEqual(el)
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expect(Util.getElement('#foo')).toEqual(el)
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expect(Util.getElement('#fail')).toBeNull()
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expect(Util.getElement({})).toBeNull()
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expect(Util.getElement([])).toBeNull()
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expect(Util.getElement()).toBeNull()
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expect(Util.getElement(null)).toBeNull()
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expect(Util.getElement(fixtureEl.querySelectorAll('.test'))).toBeNull()
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const fakejQueryObject = {
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0: el,
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jquery: 'foo'
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}
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expect(Util.getElement(fakejQueryObject)).toEqual(el)
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})
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})
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describe('isVisible', () => {
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it('should return false if the element is not defined', () => {
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expect(Util.isVisible(null)).toBeFalse()
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expect(Util.isVisible(undefined)).toBeFalse()
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})
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it('should return false if the element provided is not a dom element', () => {
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expect(Util.isVisible({})).toBeFalse()
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})
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it('should return false if the element is not visible with display none', () => {
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fixtureEl.innerHTML = '<div style="display: none;"></div>'
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const div = fixtureEl.querySelector('div')
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expect(Util.isVisible(div)).toBeFalse()
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})
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it('should return false if the element is not visible with visibility hidden', () => {
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fixtureEl.innerHTML = '<div style="visibility: hidden;"></div>'
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const div = fixtureEl.querySelector('div')
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expect(Util.isVisible(div)).toBeFalse()
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})
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it('should return false if an ancestor element is display none', () => {
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fixtureEl.innerHTML = [
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'<div style="display: none;">',
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' <div>',
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' <div>',
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' <div class="content"></div>',
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' </div>',
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' </div>',
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'</div>'
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].join('')
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const div = fixtureEl.querySelector('.content')
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expect(Util.isVisible(div)).toBeFalse()
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})
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it('should return false if an ancestor element is visibility hidden', () => {
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fixtureEl.innerHTML = [
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'<div style="visibility: hidden;">',
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' <div>',
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' <div>',
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' <div class="content"></div>',
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' </div>',
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' </div>',
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'</div>'
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].join('')
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const div = fixtureEl.querySelector('.content')
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expect(Util.isVisible(div)).toBeFalse()
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})
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it('should return true if an ancestor element is visibility hidden, but reverted', () => {
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fixtureEl.innerHTML = [
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'<div style="visibility: hidden;">',
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' <div style="visibility: visible;">',
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' <div>',
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' <div class="content"></div>',
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' </div>',
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' </div>',
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'</div>'
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].join('')
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const div = fixtureEl.querySelector('.content')
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expect(Util.isVisible(div)).toBeTrue()
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})
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it('should return true if the element is visible', () => {
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fixtureEl.innerHTML = [
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'<div>',
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' <div id="element"></div>',
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'</div>'
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].join('')
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const div = fixtureEl.querySelector('#element')
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expect(Util.isVisible(div)).toBeTrue()
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})
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it('should return false if the element is hidden, but not via display or visibility', () => {
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fixtureEl.innerHTML = [
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'<details>',
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' <div id="element"></div>',
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'</details>'
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].join('')
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const div = fixtureEl.querySelector('#element')
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expect(Util.isVisible(div)).toBeFalse()
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})
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it('should return true if its a closed details element', () => {
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fixtureEl.innerHTML = '<details id="element"></details>'
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const div = fixtureEl.querySelector('#element')
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expect(Util.isVisible(div)).toBeTrue()
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})
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it('should return true if the element is visible inside an open details element', () => {
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fixtureEl.innerHTML = [
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'<details open>',
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' <div id="element"></div>',
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'</details>'
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].join('')
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const div = fixtureEl.querySelector('#element')
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expect(Util.isVisible(div)).toBeTrue()
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})
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it('should return true if the element is a visible summary in a closed details element', () => {
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fixtureEl.innerHTML = [
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'<details>',
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' <summary id="element-1">',
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' <span id="element-2"></span>',
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' </summary>',
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'</details>'
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].join('')
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const element1 = fixtureEl.querySelector('#element-1')
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const element2 = fixtureEl.querySelector('#element-2')
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expect(Util.isVisible(element1)).toBeTrue()
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expect(Util.isVisible(element2)).toBeTrue()
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})
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})
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describe('isDisabled', () => {
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it('should return true if the element is not defined', () => {
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expect(Util.isDisabled(null)).toBeTrue()
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expect(Util.isDisabled(undefined)).toBeTrue()
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expect(Util.isDisabled()).toBeTrue()
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})
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it('should return true if the element provided is not a dom element', () => {
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expect(Util.isDisabled({})).toBeTrue()
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expect(Util.isDisabled('test')).toBeTrue()
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})
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it('should return true if the element has disabled attribute', () => {
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fixtureEl.innerHTML = [
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'<div>',
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' <div id="element" disabled="disabled"></div>',
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' <div id="element1" disabled="true"></div>',
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' <div id="element2" disabled></div>',
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'</div>'
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].join('')
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const div = fixtureEl.querySelector('#element')
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const div1 = fixtureEl.querySelector('#element1')
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const div2 = fixtureEl.querySelector('#element2')
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expect(Util.isDisabled(div)).toBeTrue()
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expect(Util.isDisabled(div1)).toBeTrue()
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expect(Util.isDisabled(div2)).toBeTrue()
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})
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it('should return false if the element has disabled attribute with "false" value, or doesn\'t have attribute', () => {
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fixtureEl.innerHTML = [
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'<div>',
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' <div id="element" disabled="false"></div>',
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' <div id="element1" ></div>',
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'</div>'
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].join('')
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const div = fixtureEl.querySelector('#element')
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const div1 = fixtureEl.querySelector('#element1')
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expect(Util.isDisabled(div)).toBeFalse()
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expect(Util.isDisabled(div1)).toBeFalse()
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})
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it('should return false if the element is not disabled ', () => {
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fixtureEl.innerHTML = [
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'<div>',
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' <button id="button"></button>',
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' <select id="select"></select>',
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' <select id="input"></select>',
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'</div>'
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].join('')
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const el = selector => fixtureEl.querySelector(selector)
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expect(Util.isDisabled(el('#button'))).toBeFalse()
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expect(Util.isDisabled(el('#select'))).toBeFalse()
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expect(Util.isDisabled(el('#input'))).toBeFalse()
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})
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it('should return true if the element has disabled attribute', () => {
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fixtureEl.innerHTML = [
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'<div>',
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' <input id="input" disabled="disabled">',
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' <input id="input1" disabled="disabled">',
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' <button id="button" disabled="true"></button>',
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' <button id="button1" disabled="disabled"></button>',
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' <button id="button2" disabled></button>',
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' <select id="select" disabled></select>',
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' <select id="input" disabled></select>',
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'</div>'
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].join('')
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const el = selector => fixtureEl.querySelector(selector)
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expect(Util.isDisabled(el('#input'))).toBeTrue()
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expect(Util.isDisabled(el('#input1'))).toBeTrue()
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expect(Util.isDisabled(el('#button'))).toBeTrue()
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expect(Util.isDisabled(el('#button1'))).toBeTrue()
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expect(Util.isDisabled(el('#button2'))).toBeTrue()
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expect(Util.isDisabled(el('#input'))).toBeTrue()
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})
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it('should return true if the element has class "disabled"', () => {
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fixtureEl.innerHTML = [
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'<div>',
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' <div id="element" class="disabled"></div>',
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'</div>'
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].join('')
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const div = fixtureEl.querySelector('#element')
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expect(Util.isDisabled(div)).toBeTrue()
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})
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it('should return true if the element has class "disabled" but disabled attribute is false', () => {
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fixtureEl.innerHTML = [
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'<div>',
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' <input id="input" class="disabled" disabled="false">',
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'</div>'
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].join('')
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const div = fixtureEl.querySelector('#input')
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expect(Util.isDisabled(div)).toBeTrue()
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})
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})
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describe('findShadowRoot', () => {
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it('should return null if shadow dom is not available', () => {
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// Only for newer browsers
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if (!document.documentElement.attachShadow) {
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expect().nothing()
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return
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}
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fixtureEl.innerHTML = '<div></div>'
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const div = fixtureEl.querySelector('div')
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spyOn(document.documentElement, 'attachShadow').and.returnValue(null)
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expect(Util.findShadowRoot(div)).toBeNull()
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})
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it('should return null when we do not find a shadow root', () => {
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// Only for newer browsers
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if (!document.documentElement.attachShadow) {
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expect().nothing()
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return
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}
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spyOn(document, 'getRootNode').and.returnValue(undefined)
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expect(Util.findShadowRoot(document)).toBeNull()
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})
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it('should return the shadow root when found', () => {
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// Only for newer browsers
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if (!document.documentElement.attachShadow) {
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expect().nothing()
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return
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}
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fixtureEl.innerHTML = '<div></div>'
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const div = fixtureEl.querySelector('div')
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const shadowRoot = div.attachShadow({
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mode: 'open'
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})
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expect(Util.findShadowRoot(shadowRoot)).toEqual(shadowRoot)
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shadowRoot.innerHTML = '<button>Shadow Button</button>'
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expect(Util.findShadowRoot(shadowRoot.firstChild)).toEqual(shadowRoot)
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})
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})
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describe('noop', () => {
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it('should be a function', () => {
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expect(Util.noop).toEqual(jasmine.any(Function))
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})
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})
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describe('reflow', () => {
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it('should return element offset height to force the reflow', () => {
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fixtureEl.innerHTML = '<div></div>'
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const div = fixtureEl.querySelector('div')
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const spy = spyOnProperty(div, 'offsetHeight')
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Util.reflow(div)
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expect(spy).toHaveBeenCalled()
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})
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})
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describe('getjQuery', () => {
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const fakejQuery = { trigger() {} }
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beforeEach(() => {
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Object.defineProperty(window, 'jQuery', {
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value: fakejQuery,
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writable: true
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})
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})
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afterEach(() => {
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window.jQuery = undefined
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})
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it('should return jQuery object when present', () => {
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expect(Util.getjQuery()).toEqual(fakejQuery)
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})
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|
|
|
it('should not return jQuery object when present if data-bs-no-jquery', () => {
|
|
document.body.setAttribute('data-bs-no-jquery', '')
|
|
|
|
expect(window.jQuery).toEqual(fakejQuery)
|
|
expect(Util.getjQuery()).toBeNull()
|
|
|
|
document.body.removeAttribute('data-bs-no-jquery')
|
|
})
|
|
|
|
it('should not return jQuery if not present', () => {
|
|
window.jQuery = undefined
|
|
expect(Util.getjQuery()).toBeNull()
|
|
})
|
|
})
|
|
|
|
describe('onDOMContentLoaded', () => {
|
|
it('should execute callbacks when DOMContentLoaded is fired and should not add more than one listener', () => {
|
|
const spy = jasmine.createSpy()
|
|
const spy2 = jasmine.createSpy()
|
|
|
|
const spyAdd = spyOn(document, 'addEventListener').and.callThrough()
|
|
spyOnProperty(document, 'readyState').and.returnValue('loading')
|
|
|
|
Util.onDOMContentLoaded(spy)
|
|
Util.onDOMContentLoaded(spy2)
|
|
|
|
document.dispatchEvent(new Event('DOMContentLoaded', {
|
|
bubbles: true,
|
|
cancelable: true
|
|
}))
|
|
|
|
expect(spy).toHaveBeenCalled()
|
|
expect(spy2).toHaveBeenCalled()
|
|
expect(spyAdd).toHaveBeenCalledTimes(1)
|
|
})
|
|
|
|
it('should execute callback if readyState is not "loading"', () => {
|
|
const spy = jasmine.createSpy()
|
|
Util.onDOMContentLoaded(spy)
|
|
expect(spy).toHaveBeenCalled()
|
|
})
|
|
})
|
|
|
|
describe('defineJQueryPlugin', () => {
|
|
const fakejQuery = { fn: {} }
|
|
|
|
beforeEach(() => {
|
|
Object.defineProperty(window, 'jQuery', {
|
|
value: fakejQuery,
|
|
writable: true
|
|
})
|
|
})
|
|
|
|
afterEach(() => {
|
|
window.jQuery = undefined
|
|
})
|
|
|
|
it('should define a plugin on the jQuery instance', () => {
|
|
const pluginMock = Util.noop
|
|
pluginMock.NAME = 'test'
|
|
pluginMock.jQueryInterface = Util.noop
|
|
|
|
Util.defineJQueryPlugin(pluginMock)
|
|
expect(fakejQuery.fn.test).toEqual(pluginMock.jQueryInterface)
|
|
expect(fakejQuery.fn.test.Constructor).toEqual(pluginMock)
|
|
expect(fakejQuery.fn.test.noConflict).toEqual(jasmine.any(Function))
|
|
})
|
|
})
|
|
|
|
describe('execute', () => {
|
|
it('should execute if arg is function', () => {
|
|
const spy = jasmine.createSpy('spy')
|
|
Util.execute(spy)
|
|
expect(spy).toHaveBeenCalled()
|
|
})
|
|
})
|
|
|
|
describe('executeAfterTransition', () => {
|
|
it('should immediately execute a function when waitForTransition parameter is false', () => {
|
|
const el = document.createElement('div')
|
|
const callbackSpy = jasmine.createSpy('callback spy')
|
|
const eventListenerSpy = spyOn(el, 'addEventListener')
|
|
|
|
Util.executeAfterTransition(callbackSpy, el, false)
|
|
|
|
expect(callbackSpy).toHaveBeenCalled()
|
|
expect(eventListenerSpy).not.toHaveBeenCalled()
|
|
})
|
|
|
|
it('should execute a function when a transitionend event is dispatched', () => {
|
|
const el = document.createElement('div')
|
|
const callbackSpy = jasmine.createSpy('callback spy')
|
|
|
|
spyOn(window, 'getComputedStyle').and.returnValue({
|
|
transitionDuration: '0.05s',
|
|
transitionDelay: '0s'
|
|
})
|
|
|
|
Util.executeAfterTransition(callbackSpy, el)
|
|
|
|
el.dispatchEvent(new TransitionEvent('transitionend'))
|
|
|
|
expect(callbackSpy).toHaveBeenCalled()
|
|
})
|
|
|
|
it('should execute a function after a computed CSS transition duration and there was no transitionend event dispatched', () => {
|
|
return new Promise(resolve => {
|
|
const el = document.createElement('div')
|
|
const callbackSpy = jasmine.createSpy('callback spy')
|
|
|
|
spyOn(window, 'getComputedStyle').and.returnValue({
|
|
transitionDuration: '0.05s',
|
|
transitionDelay: '0s'
|
|
})
|
|
|
|
Util.executeAfterTransition(callbackSpy, el)
|
|
|
|
setTimeout(() => {
|
|
expect(callbackSpy).toHaveBeenCalled()
|
|
resolve()
|
|
}, 70)
|
|
})
|
|
})
|
|
|
|
it('should not execute a function a second time after a computed CSS transition duration and if a transitionend event has already been dispatched', () => {
|
|
return new Promise(resolve => {
|
|
const el = document.createElement('div')
|
|
const callbackSpy = jasmine.createSpy('callback spy')
|
|
|
|
spyOn(window, 'getComputedStyle').and.returnValue({
|
|
transitionDuration: '0.05s',
|
|
transitionDelay: '0s'
|
|
})
|
|
|
|
Util.executeAfterTransition(callbackSpy, el)
|
|
|
|
setTimeout(() => {
|
|
el.dispatchEvent(new TransitionEvent('transitionend'))
|
|
}, 50)
|
|
|
|
setTimeout(() => {
|
|
expect(callbackSpy).toHaveBeenCalledTimes(1)
|
|
resolve()
|
|
}, 70)
|
|
})
|
|
})
|
|
|
|
it('should not trigger a transitionend event if another transitionend event had already happened', () => {
|
|
return new Promise(resolve => {
|
|
const el = document.createElement('div')
|
|
|
|
spyOn(window, 'getComputedStyle').and.returnValue({
|
|
transitionDuration: '0.05s',
|
|
transitionDelay: '0s'
|
|
})
|
|
|
|
Util.executeAfterTransition(noop, el)
|
|
|
|
// simulate a event dispatched by the browser
|
|
el.dispatchEvent(new TransitionEvent('transitionend'))
|
|
|
|
const dispatchSpy = spyOn(el, 'dispatchEvent').and.callThrough()
|
|
|
|
setTimeout(() => {
|
|
// setTimeout should not have triggered another transitionend event.
|
|
expect(dispatchSpy).not.toHaveBeenCalled()
|
|
resolve()
|
|
}, 70)
|
|
})
|
|
})
|
|
|
|
it('should ignore transitionend events from nested elements', () => {
|
|
return new Promise(resolve => {
|
|
fixtureEl.innerHTML = [
|
|
'<div class="outer">',
|
|
' <div class="nested"></div>',
|
|
'</div>'
|
|
].join('')
|
|
|
|
const outer = fixtureEl.querySelector('.outer')
|
|
const nested = fixtureEl.querySelector('.nested')
|
|
const callbackSpy = jasmine.createSpy('callback spy')
|
|
|
|
spyOn(window, 'getComputedStyle').and.returnValue({
|
|
transitionDuration: '0.05s',
|
|
transitionDelay: '0s'
|
|
})
|
|
|
|
Util.executeAfterTransition(callbackSpy, outer)
|
|
|
|
nested.dispatchEvent(new TransitionEvent('transitionend', {
|
|
bubbles: true
|
|
}))
|
|
|
|
setTimeout(() => {
|
|
expect(callbackSpy).not.toHaveBeenCalled()
|
|
}, 20)
|
|
|
|
setTimeout(() => {
|
|
expect(callbackSpy).toHaveBeenCalled()
|
|
resolve()
|
|
}, 70)
|
|
})
|
|
})
|
|
})
|
|
|
|
describe('getNextActiveElement', () => {
|
|
it('should return first element if active not exists or not given and shouldGetNext is either true, or false with cycling being disabled', () => {
|
|
const array = ['a', 'b', 'c', 'd']
|
|
|
|
expect(Util.getNextActiveElement(array, '', true, true)).toEqual('a')
|
|
expect(Util.getNextActiveElement(array, 'g', true, true)).toEqual('a')
|
|
expect(Util.getNextActiveElement(array, '', true, false)).toEqual('a')
|
|
expect(Util.getNextActiveElement(array, 'g', true, false)).toEqual('a')
|
|
expect(Util.getNextActiveElement(array, '', false, false)).toEqual('a')
|
|
expect(Util.getNextActiveElement(array, 'g', false, false)).toEqual('a')
|
|
})
|
|
|
|
it('should return last element if active not exists or not given and shouldGetNext is false but cycling is enabled', () => {
|
|
const array = ['a', 'b', 'c', 'd']
|
|
|
|
expect(Util.getNextActiveElement(array, '', false, true)).toEqual('d')
|
|
expect(Util.getNextActiveElement(array, 'g', false, true)).toEqual('d')
|
|
})
|
|
|
|
it('should return next element or same if is last', () => {
|
|
const array = ['a', 'b', 'c', 'd']
|
|
|
|
expect(Util.getNextActiveElement(array, 'a', true, true)).toEqual('b')
|
|
expect(Util.getNextActiveElement(array, 'b', true, true)).toEqual('c')
|
|
expect(Util.getNextActiveElement(array, 'd', true, false)).toEqual('d')
|
|
})
|
|
|
|
it('should return next element or first, if is last and "isCycleAllowed = true"', () => {
|
|
const array = ['a', 'b', 'c', 'd']
|
|
|
|
expect(Util.getNextActiveElement(array, 'c', true, true)).toEqual('d')
|
|
expect(Util.getNextActiveElement(array, 'd', true, true)).toEqual('a')
|
|
})
|
|
|
|
it('should return previous element or same if is first', () => {
|
|
const array = ['a', 'b', 'c', 'd']
|
|
|
|
expect(Util.getNextActiveElement(array, 'b', false, true)).toEqual('a')
|
|
expect(Util.getNextActiveElement(array, 'd', false, true)).toEqual('c')
|
|
expect(Util.getNextActiveElement(array, 'a', false, false)).toEqual('a')
|
|
})
|
|
|
|
it('should return next element or first, if is last and "isCycleAllowed = true"', () => {
|
|
const array = ['a', 'b', 'c', 'd']
|
|
|
|
expect(Util.getNextActiveElement(array, 'd', false, true)).toEqual('c')
|
|
expect(Util.getNextActiveElement(array, 'a', false, true)).toEqual('d')
|
|
})
|
|
})
|
|
})
|