Nuxt/packages/nuxt/test/devonly.test.ts

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import { describe, expect, it } from 'vitest'
import type { Plugin } from 'vite'
import { DevOnlyPlugin } from '../src/core/plugins/dev-only'
import { normalizeLineEndings } from './utils'
const pluginVite = DevOnlyPlugin.raw({}, { framework: 'vite' }) as Plugin
const viteTransform = async (source: string, id: string) => {
const result = await (pluginVite.transform! as Function)(source, id)
return typeof result === 'string' ? result : result?.code
}
describe('test devonly transform ', () => {
it('test dev only treeshaking', async () => {
const result = await viteTransform(`<template>
<div>
<LazyDevOnly>
<SomeDevOnlyComponent></SomeDevOnlyComponent>
</LazyDevOnly>
</div>
<SomeComponent>
<lazy-dev-only>
test
</lazy-dev-only>
</SomeComponent>
<div>
<DevOnly>
<SomeDevOnlyComponent></SomeDevOnlyComponent>
</DevOnly>
</div>
<SomeComponent>
<dev-only>
test
</dev-only>
</SomeComponent>
</template>`, 'some id')
expect(normalizeLineEndings(result)).toMatchInlineSnapshot(`
"<template>
<div>
</div>
<SomeComponent>
</SomeComponent>
<div>
</div>
<SomeComponent>
</SomeComponent>
</template>"
`)
expect(result).not.toContain('dev-only')
expect(result).not.toContain('DevOnly')
expect(result).not.toContain('lazy-dev-only')
expect(result).not.toContain('LazyDevOnly')
})
it('should not remove class -> nuxt#24491', async () => {
const source = `<template>
<DevOnly>
<div class="red">This is red.</div>
<template #fallback>
<div class="red">This should also be red.</div>
</template>
</DevOnly>
</template>
`
const result = await viteTransform(source, 'some id')
expect(result).toMatchInlineSnapshot(`
"<template>
<div class="red">This should also be red.</div>
</template>
"
`)
})
})