)
})
+ describe('transition with Suspense', () => {
+ // #1583
+ test(
+ 'async component transition inside Suspense',
+ async () => {
+ const onLeaveSpy = jest.fn()
+ const onEnterSpy = jest.fn()
+
+ await page().exposeFunction('onLeaveSpy', onLeaveSpy)
+ await page().exposeFunction('onEnterSpy', onEnterSpy)
+
+ await page().evaluate(() => {
+ const { onEnterSpy, onLeaveSpy } = window as any
+ const { createApp, ref, h } = (window as any).Vue
+ createApp({
+ template: `
+ <div id="container">
+ <Suspense>
+ <transition @enter="onEnterSpy"
+ @leave="onLeaveSpy">
+ <Comp v-if="toggle" class="test">content</Comp>
+ </transition>
+ </Suspense>
+ </div>
+ <button id="toggleBtn" @click="click">button</button>
+ `,
+ components: {
+ Comp: {
+ async setup() {
+ return () => h('div', { class: 'test' }, 'content')
+ }
+ }
+ },
+ setup: () => {
+ const toggle = ref(true)
+ const click = () => (toggle.value = !toggle.value)
+ return { toggle, click, onEnterSpy, onLeaveSpy }
+ }
+ }).mount('#app')
+ })
+ expect(await html('#container')).toBe('<div class="test">content</div>')
+
+ // leave
+ expect(await classWhenTransitionStart()).toStrictEqual([
+ 'test',
+ 'v-leave-active',
+ 'v-leave-from'
+ ])
+ expect(onLeaveSpy).toBeCalledTimes(1)
+ await nextFrame()
+ expect(await classList('.test')).toStrictEqual([
+ 'test',
+ 'v-leave-active',
+ 'v-leave-to'
+ ])
+ await transitionFinish()
+ expect(await html('#container')).toBe('<!--v-if-->')
+
+ // enter
+ const enterClass = await page().evaluate(async () => {
+ (document.querySelector('#toggleBtn') as any)!.click()
+ // nextTrick for patch start
+ await Promise.resolve()
+ // nextTrick for Suspense resolve
+ await Promise.resolve()
+ // nextTrick for dom transition start
+ await Promise.resolve()
+ return document
+ .querySelector('#container div')!
+ .className.split(/\s+/g)
+ })
+ expect(enterClass).toStrictEqual([
+ 'test',
+ 'v-enter-active',
+ 'v-enter-from'
+ ])
+ expect(onEnterSpy).toBeCalledTimes(1)
+ await nextFrame()
+ expect(await classList('.test')).toStrictEqual([
+ 'test',
+ 'v-enter-active',
+ 'v-enter-to'
+ ])
+ await transitionFinish()
+ expect(await html('#container')).toBe('<div class="test">content</div>')
+ },
+ E2E_TIMEOUT
+ )
+
+ // #1689
+ test(
+ 'static node transition inside Suspense',
+ async () => {
+ await page().evaluate(() => {
+ const { createApp, ref } = (window as any).Vue
+ createApp({
+ template: `
+ <div id="container">
+ <Suspense>
+ <transition>
+ <div v-if="toggle" class="test">content</div>
+ </transition>
+ </Suspense>
+ </div>
+ <button id="toggleBtn" @click="click">button</button>
+ `,
+ setup: () => {
+ const toggle = ref(true)
+ const click = () => (toggle.value = !toggle.value)
+ return { toggle, click }
+ }
+ }).mount('#app')
+ })
+ expect(await html('#container')).toBe('<div class="test">content</div>')
+
+ // leave
+ expect(await classWhenTransitionStart()).toStrictEqual([
+ 'test',
+ 'v-leave-active',
+ 'v-leave-from'
+ ])
+ await nextFrame()
+ expect(await classList('.test')).toStrictEqual([
+ 'test',
+ 'v-leave-active',
+ 'v-leave-to'
+ ])
+ await transitionFinish()
+ expect(await html('#container')).toBe('<!--v-if-->')
+
+ // enter
+ expect(await classWhenTransitionStart()).toStrictEqual([
+ 'test',
+ 'v-enter-active',
+ 'v-enter-from'
+ ])
+ await nextFrame()
+ expect(await classList('.test')).toStrictEqual([
+ 'test',
+ 'v-enter-active',
+ 'v-enter-to'
+ ])
+ await transitionFinish()
+ expect(await html('#container')).toBe('<div class="test">content</div>')
+ },
+ E2E_TIMEOUT
+ )
+ })
+
describe('transition with v-show', () => {
test(
'named transition with v-show',