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import Manipulator from '../../../src/dom/manipulator'
import { getFixture, clearFixture } from '../../helpers/fixture'
describe('Manipulator', () => {
let fixtureEl
beforeAll(() => {
fixtureEl = getFixture()
})
afterEach(() => {
clearFixture()
})
describe('setDataAttribute', () => {
it('should set data attribute prefixed with bs', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
Manipulator.setDataAttribute(div, 'key', 'value')
expect(div.getAttribute('data-bs-key')).toEqual('value')
})
it('should set data attribute in kebab case', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
Manipulator.setDataAttribute(div, 'testKey', 'value')
expect(div.getAttribute('data-bs-test-key')).toEqual('value')
})
})
describe('removeDataAttribute', () => {
it('should only remove bs-prefixed data attribute', () => {
fixtureEl.innerHTML = '<div data-bs-key="value" data-key-bs="postfixed" data-key="value"></div>'
const div = fixtureEl.querySelector('div')
Manipulator.removeDataAttribute(div, 'key')
expect(div.getAttribute('data-bs-key')).toBeNull()
expect(div.getAttribute('data-key-bs')).toEqual('postfixed')
expect(div.getAttribute('data-key')).toEqual('value')
})
it('should remove data attribute in kebab case', () => {
fixtureEl.innerHTML = '<div data-bs-test-key="value"></div>'
const div = fixtureEl.querySelector('div')
Manipulator.removeDataAttribute(div, 'testKey')
expect(div.getAttribute('data-bs-test-key')).toBeNull()
})
})
describe('getDataAttributes', () => {
it('should return an empty object for null', () => {
expect(Manipulator.getDataAttributes(null)).toEqual({})
expect().nothing()
})
it('should get only bs-prefixed data attributes without bs namespace', () => {
fixtureEl.innerHTML = '<div data-bs-toggle="tabs" data-bs-target="#element" data-another="value" data-target-bs="#element" data-in-bs-out="in-between"></div>'
const div = fixtureEl.querySelector('div')
expect(Manipulator.getDataAttributes(div)).toEqual({
toggle: 'tabs',
target: '#element'
})
})
})
describe('getDataAttribute', () => {
it('should only get bs-prefixed data attribute', () => {
fixtureEl.innerHTML = '<div data-bs-key="value" data-test-bs="postFixed" data-toggle="tab"></div>'
const div = fixtureEl.querySelector('div')
expect(Manipulator.getDataAttribute(div, 'key')).toEqual('value')
expect(Manipulator.getDataAttribute(div, 'test')).toBeNull()
expect(Manipulator.getDataAttribute(div, 'toggle')).toBeNull()
})
it('should get data attribute in kebab case', () => {
fixtureEl.innerHTML = '<div data-bs-test-key="value" ></div>'
const div = fixtureEl.querySelector('div')
expect(Manipulator.getDataAttribute(div, 'testKey')).toEqual('value')
})
it('should normalize data', () => {
fixtureEl.innerHTML = '<div data-bs-test="false" ></div>'
const div = fixtureEl.querySelector('div')
expect(Manipulator.getDataAttribute(div, 'test')).toEqual(false)
div.setAttribute('data-bs-test', 'true')
expect(Manipulator.getDataAttribute(div, 'test')).toEqual(true)
div.setAttribute('data-bs-test', '1')
expect(Manipulator.getDataAttribute(div, 'test')).toEqual(1)
})
})
describe('offset', () => {
it('should return an object with two properties top and left, both numbers', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const offset = Manipulator.offset(div)
expect(offset).toBeDefined()
expect(offset.top).toEqual(jasmine.any(Number))
expect(offset.left).toEqual(jasmine.any(Number))
})
it('should return offset relative to attached element\'s offset', () => {
const top = 500
const left = 1000
fixtureEl.innerHTML = `<div style="position:absolute;top:${top}px;left:${left}px"></div>`
const div = fixtureEl.querySelector('div')
const offset = Manipulator.offset(div)
const fixtureOffset = Manipulator.offset(fixtureEl)
expect(offset).toEqual({
top: fixtureOffset.top + top,
left: fixtureOffset.left + left
})
})
it('should not change offset when viewport is scrolled', done => {
const top = 500
const left = 1000
const scrollY = 200
const scrollX = 400
fixtureEl.innerHTML = `<div style="position:absolute;top:${top}px;left:${left}px"></div>`
const div = fixtureEl.querySelector('div')
const offset = Manipulator.offset(div)
// append an element that forces scrollbars on the window so we can scroll
const { defaultView: win, body } = fixtureEl.ownerDocument
const forceScrollBars = document.createElement('div')
forceScrollBars.style.cssText = 'position:absolute;top:5000px;left:5000px;width:1px;height:1px'
body.append(forceScrollBars)
const scrollHandler = () => {
expect(window.pageYOffset).toBe(scrollY)
expect(window.pageXOffset).toBe(scrollX)
const newOffset = Manipulator.offset(div)
expect(newOffset).toEqual({
top: offset.top,
left: offset.left
})
win.removeEventListener('scroll', scrollHandler)
forceScrollBars.remove()
win.scrollTo(0, 0)
done()
}
win.addEventListener('scroll', scrollHandler)
win.scrollTo(scrollX, scrollY)
})
})
describe('position', () => {
it('should return an object with two properties top and left, both numbers', () => {
fixtureEl.innerHTML = '<div></div>'
const div = fixtureEl.querySelector('div')
const position = Manipulator.position(div)
expect(position).toBeDefined()
expect(position.top).toEqual(jasmine.any(Number))
expect(position.left).toEqual(jasmine.any(Number))
})
})
})
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