128 lines
2.8 KiB
TypeScript
128 lines
2.8 KiB
TypeScript
import {
|
|
h,
|
|
ref,
|
|
Suspense,
|
|
ComponentOptions,
|
|
render,
|
|
nodeOps,
|
|
serializeInner,
|
|
nextTick
|
|
} from '@vue/runtime-test'
|
|
|
|
describe('renderer: suspense', () => {
|
|
it('basic usage (nested + multiple deps)', async () => {
|
|
const msg = ref('hello')
|
|
const deps: Promise<any>[] = []
|
|
|
|
const createAsyncComponent = (loader: () => Promise<ComponentOptions>) => ({
|
|
async setup(props: any, { slots }: any) {
|
|
const p = loader()
|
|
deps.push(p)
|
|
const Inner = await p
|
|
return () => h(Inner, props, slots)
|
|
}
|
|
})
|
|
|
|
const AsyncChild = createAsyncComponent(
|
|
() =>
|
|
new Promise(resolve => {
|
|
setTimeout(() => {
|
|
resolve({
|
|
setup(props: { msg: string }) {
|
|
return () => h('div', props.msg)
|
|
}
|
|
})
|
|
}, 0)
|
|
})
|
|
)
|
|
|
|
const AsyncChild2 = createAsyncComponent(
|
|
() =>
|
|
new Promise(resolve => {
|
|
setTimeout(() => {
|
|
resolve({
|
|
setup(props: { msg: string }) {
|
|
return () => h('div', props.msg)
|
|
}
|
|
})
|
|
}, 10)
|
|
})
|
|
)
|
|
|
|
const Mid = {
|
|
setup() {
|
|
return () =>
|
|
h(AsyncChild, {
|
|
msg: msg.value
|
|
})
|
|
}
|
|
}
|
|
|
|
const Comp = {
|
|
setup() {
|
|
return () =>
|
|
h(Suspense, [msg.value, h(Mid), h(AsyncChild2, { msg: 'child 2' })])
|
|
}
|
|
}
|
|
|
|
const root = nodeOps.createElement('div')
|
|
render(h(Comp), root)
|
|
expect(serializeInner(root)).toBe(`<!---->`)
|
|
|
|
await Promise.all(deps)
|
|
await nextTick()
|
|
expect(serializeInner(root)).toBe(
|
|
`<!---->hello<div>hello</div><div>child 2</div><!---->`
|
|
)
|
|
})
|
|
|
|
test('fallback content', async () => {
|
|
const deps: Promise<any>[] = []
|
|
|
|
const Async = {
|
|
async setup() {
|
|
const p = new Promise(r => setTimeout(r, 1))
|
|
deps.push(p)
|
|
await p
|
|
// test resume for returning bindings
|
|
return {
|
|
msg: 'async'
|
|
}
|
|
},
|
|
render(this: any) {
|
|
return h('div', this.msg)
|
|
}
|
|
}
|
|
|
|
const Comp = {
|
|
setup() {
|
|
return () =>
|
|
h(Suspense, null, {
|
|
default: h(Async),
|
|
fallback: h('div', 'fallback')
|
|
})
|
|
}
|
|
}
|
|
|
|
const root = nodeOps.createElement('div')
|
|
render(h(Comp), root)
|
|
expect(serializeInner(root)).toBe(`<div>fallback</div>`)
|
|
|
|
await Promise.all(deps)
|
|
await nextTick()
|
|
expect(serializeInner(root)).toBe(`<div>async</div>`)
|
|
})
|
|
|
|
test.todo('buffer mounted/updated hooks & watch callbacks')
|
|
|
|
test.todo('content update before suspense resolve')
|
|
|
|
test.todo('unmount before suspense resolve')
|
|
|
|
test.todo('nested suspense')
|
|
|
|
test.todo('error handling')
|
|
|
|
test.todo('portal inside suspense')
|
|
})
|