/
templateRefs.spec.js
161 lines (155 loc) · 3.58 KB
/
templateRefs.spec.js
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const Vue = require('vue/dist/vue.common.js')
const { ref, watchEffect, nextTick } = require('../src')
describe('ref', () => {
it('should work', (done) => {
let dummy
const vm = new Vue({
setup() {
const ref1 = ref(null)
watchEffect(() => {
dummy = ref1.value
})
return {
bar: ref1,
}
},
template: `<div>
<test ref="bar"></test>
</div>`,
components: {
test: {
id: 'test',
template: '<div>test</div>',
},
},
}).$mount()
vm.$nextTick()
.then(() => {
expect(dummy).toBe(vm.$refs.bar)
})
.then(done)
})
it('should dynamically update refs', (done) => {
const vm = new Vue({
setup() {
const ref1 = ref(null)
const ref2 = ref(null)
watchEffect(() => {
dummy1 = ref1.value
dummy2 = ref2.value
})
return {
value: 'bar',
bar: ref1,
foo: ref2,
}
},
template: '<div :ref="value"></div>',
}).$mount()
waitForUpdate(() => {})
.then(() => {
expect(dummy1).toBe(vm.$refs.bar)
expect(dummy2).toBe(null)
vm.value = 'foo'
})
.then(() => {
// vm updated. ref update occures after updated;
})
.then(() => {
// no render cycle, empty tick
})
.then(() => {
expect(dummy1).toBe(null)
expect(dummy2).toBe(vm.$refs.foo)
})
.then(done)
})
// #296
it('should dynamically update refs in context', async () => {
const vm = new Vue({
setup() {
const barRef = ref(null)
return {
barRef,
}
},
template: `<div>
<foo><bar ref="barRef"/></foo>
</div>`,
components: {
bar: {
setup() {
const name = ref('bar')
return {
name,
}
},
template: '<div> {{name}} </div>',
},
foo: {
setup() {
const showSlot = ref(false)
const setShow = () => {
showSlot.value = true
}
return {
setShow,
showSlot,
}
},
template: `<div> <slot v-if="showSlot"></slot> </div>`,
},
},
}).$mount()
await nextTick()
//@ts-ignore
vm.$children[0].setShow()
await nextTick()
//@ts-ignore
expect(vm.$refs.barRef).toBe(vm.barRef)
})
it('should update deeply nested component refs using scoped slots', async () => {
const vm = new Vue({
setup() {
const divRef = ref(null)
const showDiv = ref(false)
return {
divRef,
showDiv,
}
},
template: `<div><foo #default>Slot: <div ref="divRef" v-if="showDiv" /></foo></div>`,
components: {
foo: {
components: {
bar: {
template: `<div><slot /></div>`,
},
},
template: '<div><bar #default><slot /></bar></div>',
},
},
}).$mount()
await nextTick()
//@ts-ignore
vm.showDiv = true
await nextTick()
//@ts-ignore
expect(vm.$refs.divRef).toBe(vm.divRef)
})
// TODO: how ?
// it('work with createElement', () => {
// let root;
// const vm = new Vue({
// setup() {
// root = ref(null);
// return () => {
// return h('div', {
// ref: root,
// });
// };
// },
// }).$mount();
// expect(root.value).toBe(vm.$el);
// });
})