Nuxt/packages/nuxt/test/prehydrate.test.ts

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import { describe, expect, it } from 'vitest'
import { PrehydrateTransformPlugin } from '../src/core/plugins/prehydrate'
describe('prehydrate', () => {
const transformPlugin = PrehydrateTransformPlugin().raw({}, {} as any) as { transform: (code: string, id: string) => Promise<{ code: string } | null> }
it('should extract and minify code in onPrehydrate', async () => {
const snippet = `
onPrehydrate(() => {
console.log('hello world')
})
`
const snippet2 = `
export default {
async setup () {
onPrehydrate(() => {
console.log('hello world')
})
}
}
`
for (const item of [snippet, snippet2]) {
const { code } = await transformPlugin.transform(item, 'test.ts') ?? {}
expect(code).toContain(`onPrehydrate("(()=>{console.log(\\"hello world\\")})")`)
}
})
it('should add hash if required', async () => {
const snippet = `
onPrehydrate((attr) => {
console.log('hello world')
})
`
const { code } = await transformPlugin.transform(snippet, 'test.ts') ?? {}
expect(code?.trim()).toMatchInlineSnapshot(`"onPrehydrate("(o=>{console.log(\\"hello world\\")})", "rifMBArY0d")"`)
})
})