vue2/test/unit/features/options/_scopeId.spec.ts

99 lines
2.8 KiB
TypeScript

import Vue from 'vue'
describe('Options _scopeId', () => {
it('should add scopeId attributes', () => {
const vm = new Vue({
_scopeId: 'foo',
template: '<div><p><span></span></p></div>'
}).$mount()
expect(vm.$el.hasAttribute('foo')).toBe(true)
expect(vm.$el.children[0].hasAttribute('foo')).toBe(true)
expect(vm.$el.children[0].children[0].hasAttribute('foo')).toBe(true)
})
it('should add scopedId attributes from both parent and child on child root', () => {
const vm = new Vue({
_scopeId: 'foo',
template: '<div><child></child></div>',
components: {
child: {
_scopeId: 'bar',
template: '<div></div>'
}
}
}).$mount()
expect(vm.$el.children[0].hasAttribute('foo')).toBe(true)
expect(vm.$el.children[0].hasAttribute('bar')).toBe(true)
})
it('should add scopedId attributes from both parent and child on slot contents', () => {
const vm = new Vue({
_scopeId: 'foo',
template: '<div><child><p>hi</p></child></div>',
components: {
child: {
_scopeId: 'bar',
template: '<div><slot></slot></div>'
}
}
}).$mount()
expect(vm.$el.children[0].children[0].hasAttribute('foo')).toBe(true)
expect(vm.$el.children[0].children[0].hasAttribute('bar')).toBe(true)
})
// #4774
it('should not discard parent scopeId when component root element is replaced', done => {
const vm = new Vue({
_scopeId: 'data-1',
template: `<div><child ref="child" /></div>`,
components: {
child: {
_scopeId: 'data-2',
data: () => ({ show: true }),
template: '<div v-if="show"></div>'
}
}
}).$mount()
const child = vm.$refs.child
expect(child.$el.hasAttribute('data-1')).toBe(true)
expect(child.$el.hasAttribute('data-2')).toBe(true)
child.show = false
waitForUpdate(() => {
child.show = true
})
.then(() => {
expect(child.$el.hasAttribute('data-1')).toBe(true)
expect(child.$el.hasAttribute('data-2')).toBe(true)
})
.then(done)
})
it('should work on functional components', () => {
const child = {
functional: true,
_scopeId: 'child',
render(h) {
return h('div', { class: 'child' }, [
h('span', { class: 'child' }, 'child')
])
}
}
const vm = new Vue({
_scopeId: 'parent',
components: { child },
template: '<div><child></child></div>'
}).$mount()
expect(vm.$el.hasAttribute('parent')).toBe(true)
const childEls = vm.$el.querySelectorAll('.child')
;[].forEach.call(childEls, el => {
expect(el.hasAttribute('child')).toBe(true)
// functional component with scopeId will not inherit parent scopeId
expect(el.hasAttribute('parent')).toBe(false)
})
})
})