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fix(ssr/watch) flush: sync watchers should work in ssr (vuejs#6139)
fix vuejs#6013
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,30 @@ | ||
import { createSSRApp, defineComponent, h, watch, ref } from 'vue' | ||
import { SSRContext, renderToString } from '../src' | ||
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describe('ssr: watch', () => { | ||
// #6013 | ||
test('should work w/ flush:sync', async () => { | ||
const App = defineComponent(() => { | ||
const count = ref(0) | ||
let msg = '' | ||
watch( | ||
count, | ||
() => { | ||
msg = 'hello world' | ||
}, | ||
{ flush: 'sync' } | ||
) | ||
count.value = 1 | ||
expect(msg).toBe('hello world') | ||
return () => h('div', null, msg) | ||
}) | ||
|
||
const app = createSSRApp(App) | ||
const ctx: SSRContext = {} | ||
const html = await renderToString(app, ctx) | ||
|
||
expect(ctx.__watcherHandles!.length).toBe(1) | ||
|
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expect(html).toMatch('hello world') | ||
}) | ||
}) |
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