import { createApp, h, Suspense } from 'vue'
import { renderToString } from '../src/renderToString'
import { ssrRenderSuspense } from '../src/helpers/ssrRenderSuspense'
import { ssrRenderComponent } from '../src'
import { mockError } from '@vue/shared'
describe('SSR Suspense', () => {
mockError()
const ResolvingAsync = {
async setup() {
return () => h('div', 'async')
}
}
const RejectingAsync = {
setup() {
return new Promise((_, reject) => reject('foo'))
}
}
describe('compiled', () => {
test('basic', async () => {
const app = createApp({
ssrRender(_ctx, _push) {
_push(
ssrRenderSuspense({
default: _push => {
_push('
async
')
}
})
)
}
})
expect(await renderToString(app)).toBe(`async
`)
})
test('with async component', async () => {
const app = createApp({
ssrRender(_ctx, _push) {
_push(
ssrRenderSuspense({
default: _push => {
_push(ssrRenderComponent(ResolvingAsync))
}
})
)
}
})
expect(await renderToString(app)).toBe(`async
`)
})
test('fallback', async () => {
const app = createApp({
ssrRender(_ctx, _push) {
_push(
ssrRenderSuspense({
default: _push => {
_push(ssrRenderComponent(RejectingAsync))
},
fallback: _push => {
_push('fallback
')
}
})
)
}
})
expect(await renderToString(app)).toBe(`fallback
`)
expect('Uncaught error in async setup').toHaveBeenWarned()
})
})
describe('vnode', () => {
test('content', async () => {
const Comp = {
render() {
return h(Suspense, null, {
default: h(ResolvingAsync),
fallback: h('div', 'fallback')
})
}
}
expect(await renderToString(createApp(Comp))).toBe(`async
`)
})
test('fallback', async () => {
const Comp = {
render() {
return h(Suspense, null, {
default: h(RejectingAsync),
fallback: h('div', 'fallback')
})
}
}
expect(await renderToString(createApp(Comp))).toBe(`fallback
`)
expect('Uncaught error in async setup').toHaveBeenWarned()
})
test('2 components', async () => {
const Comp = {
render() {
return h(Suspense, null, {
default: h('div', [h(ResolvingAsync), h(ResolvingAsync)]),
fallback: h('div', 'fallback')
})
}
}
expect(await renderToString(createApp(Comp))).toBe(
``
)
})
test('resolving component + rejecting component', async () => {
const Comp = {
render() {
return h(Suspense, null, {
default: h('div', [h(ResolvingAsync), h(RejectingAsync)]),
fallback: h('div', 'fallback')
})
}
}
expect(await renderToString(createApp(Comp))).toBe(`fallback
`)
expect('Uncaught error in async setup').toHaveBeenWarned()
})
test('failing suspense in passing suspense', async () => {
const Comp = {
render() {
return h(Suspense, null, {
default: h('div', [
h(ResolvingAsync),
h(Suspense, null, {
default: h('div', [h(RejectingAsync)]),
fallback: h('div', 'fallback 2')
})
]),
fallback: h('div', 'fallback 1')
})
}
}
expect(await renderToString(createApp(Comp))).toBe(
``
)
expect('Uncaught error in async setup').toHaveBeenWarned()
})
test('passing suspense in failing suspense', async () => {
const Comp = {
render() {
return h(Suspense, null, {
default: h('div', [
h(RejectingAsync),
h(Suspense, null, {
default: h('div', [h(ResolvingAsync)]),
fallback: h('div', 'fallback 2')
})
]),
fallback: h('div', 'fallback 1')
})
}
}
expect(await renderToString(createApp(Comp))).toBe(
`fallback 1
`
)
expect('Uncaught error in async setup').toHaveBeenWarned()
})
})
})