Nuxt/packages/nuxt/test/islandTransform.test.ts

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import { describe, expect, it, vi } from 'vitest'
import type { Plugin } from 'vite'
import type { Component } from '@nuxt/schema'
import type { UnpluginOptions } from 'unplugin'
import { islandsTransform } from '../src/components/islandsTransform'
import { normalizeLineEndings } from './utils'
const getComponents = () => [{
filePath: '/root/hello.server.vue',
mode: 'server',
pascalName: 'HelloWorld',
island: true,
kebabName: 'hello-world',
chunkName: 'components/hello-world',
export: 'default',
shortPath: '',
prefetch: false,
preload: false,
}] as Component[]
const pluginWebpack = islandsTransform.raw({
getComponents,
selectiveClient: true,
}, { framework: 'webpack', webpack: { compiler: {} as any } })
const viteTransform = async (source: string, id: string, selectiveClient = false) => {
const vitePlugin = islandsTransform.raw({
getComponents,
selectiveClient,
}, { framework: 'vite' }) as Plugin
// eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
const result = await (vitePlugin.transform! as Function)(source, id)
return typeof result === 'string' ? result : result?.code
}
const webpackTransform = async (source: string, id: string) => {
// eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
const result = await ((pluginWebpack as UnpluginOptions).transform! as Function)(source, id)
return typeof result === 'string' ? result : result?.code
}
describe('islandTransform - server and island components', () => {
describe('slots', () => {
it('expect slot transform to match inline snapshot', async () => {
const result = await viteTransform(`<template>
<div>
<slot />
<slot name="named" :some-data="someData" />
<slot
name="other"
:some-data="someData"
/>
</div>
</template>
<script setup lang="ts">
const someData = 'some data'
</script>`
, 'hello.server.vue')
expect(normalizeLineEndings(result)).toMatchInlineSnapshot(`
"<template>
<div>
<NuxtTeleportSsrSlot name="default" :props="undefined"><slot /></NuxtTeleportSsrSlot>
<NuxtTeleportSsrSlot name="named" :props="[{ [\`some-data\`]: someData }]"><slot name="named" :some-data="someData" /></NuxtTeleportSsrSlot>
<NuxtTeleportSsrSlot name="other" :props="[{ [\`some-data\`]: someData }]"><slot
name="other"
:some-data="someData"
/></NuxtTeleportSsrSlot>
</div>
</template>
<script setup lang="ts">
import { mergeProps as __mergeProps } from 'vue'
import { vforToArray as __vforToArray } from '#app/components/utils'
import NuxtTeleportIslandComponent from '#app/components/nuxt-teleport-island-component'
import NuxtTeleportSsrSlot from '#app/components/nuxt-teleport-island-slot'
const someData = 'some data'
</script>"
`)
})
it('generates bindings when props are needed to be merged', async () => {
const result = await viteTransform(`<script setup lang="ts">
withDefaults(defineProps<{ things?: any[]; somethingElse?: string }>(), {
things: () => [],
somethingElse: "yay",
});
</script>
<template>
<template v-for="thing in things">
<slot name="thing" v-bind="thing" />
</template>
</template>
`, 'hello.server.vue')
expect(normalizeLineEndings(result)).toMatchInlineSnapshot(`
"<script setup lang="ts">
import { mergeProps as __mergeProps } from 'vue'
import { vforToArray as __vforToArray } from '#app/components/utils'
import NuxtTeleportIslandComponent from '#app/components/nuxt-teleport-island-component'
import NuxtTeleportSsrSlot from '#app/components/nuxt-teleport-island-slot'
withDefaults(defineProps<{ things?: any[]; somethingElse?: string }>(), {
things: () => [],
somethingElse: "yay",
});
</script>
<template>
<template v-for="thing in things">
<NuxtTeleportSsrSlot name="thing" :props="[__mergeProps(thing, { })]"><slot name="thing" v-bind="thing" /></NuxtTeleportSsrSlot>
</template>
</template>
"
`)
})
it('expect slot fallback transform to match inline snapshot', async () => {
const result = await viteTransform(`<template>
<div>
<slot :some-data="someData">
<div>fallback</div>
</slot>
</div>
</template>
<script setup lang="ts">
const someData = 'some data'
</script>`
, 'hello.server.vue')
expect(normalizeLineEndings(result)).toMatchInlineSnapshot(`
"<template>
<div>
<NuxtTeleportSsrSlot name="default" :props="[{ [\`some-data\`]: someData }]"><slot :some-data="someData"/><template #fallback>
<div>fallback</div>
</template></NuxtTeleportSsrSlot>
</div>
</template>
<script setup lang="ts">
import { mergeProps as __mergeProps } from 'vue'
import { vforToArray as __vforToArray } from '#app/components/utils'
import NuxtTeleportIslandComponent from '#app/components/nuxt-teleport-island-component'
import NuxtTeleportSsrSlot from '#app/components/nuxt-teleport-island-slot'
const someData = 'some data'
</script>"
`)
})
it('expect slot transform with fallback and no name to match inline snapshot #23209', async () => {
const result = await viteTransform(`<template>
<div>
<UCard>
<template #header>
<h3>Partial Hydration Example - Server - {{ count }}</h3>
</template>
<template #default>
<p>message: {{ message }}</p>
<p>Below is the slot I want to be hydrated on the client</p>
<div>
<slot>
This is the default content of the slot, I should not see this after
the client loading has completed.
</slot>
</div>
<p>Above is the slot I want to be hydrated on the client</p>
</template>
</UCard>
</div>
</template>
<script setup lang="ts">
export interface Props {
count?: number;
}
const props = withDefaults(defineProps<Props>(), { count: 0 });
const message = "Hello World";
</script>
`
, 'hello.server.vue')
expect(normalizeLineEndings(result)).toMatchInlineSnapshot(`
"<template>
<div>
<UCard>
<template #header>
<h3>Partial Hydration Example - Server - {{ count }}</h3>
</template>
<template #default>
<p>message: {{ message }}</p>
<p>Below is the slot I want to be hydrated on the client</p>
<div>
<NuxtTeleportSsrSlot name="default" :props="undefined"><slot/><template #fallback>
This is the default content of the slot, I should not see this after
the client loading has completed.
</template></NuxtTeleportSsrSlot>
</div>
<p>Above is the slot I want to be hydrated on the client</p>
</template>
</UCard>
</div>
</template>
<script setup lang="ts">
import { mergeProps as __mergeProps } from 'vue'
import { vforToArray as __vforToArray } from '#app/components/utils'
import NuxtTeleportIslandComponent from '#app/components/nuxt-teleport-island-component'
import NuxtTeleportSsrSlot from '#app/components/nuxt-teleport-island-slot'
export interface Props {
count?: number;
}
const props = withDefaults(defineProps<Props>(), { count: 0 });
const message = "Hello World";
</script>
"
`)
})
it('expect v-if/v-else/v-else-if to be set in teleport component wrapper', async () => {
const result = await viteTransform(`<script setup lang="ts">
const foo = true;
</script>
<template>
<slot v-if="foo" />
<slot v-else-if="test" />
<slot v-else />
</template>
`, 'WithVif.vue', true)
expect(normalizeLineEndings(result)).toMatchInlineSnapshot(`
"<script setup lang="ts">
import { mergeProps as __mergeProps } from 'vue'
import { vforToArray as __vforToArray } from '#app/components/utils'
import NuxtTeleportIslandComponent from '#app/components/nuxt-teleport-island-component'
import NuxtTeleportSsrSlot from '#app/components/nuxt-teleport-island-slot'
const foo = true;
</script>
<template>
<NuxtTeleportSsrSlot v-if="foo" name="default" :props="undefined"><slot /></NuxtTeleportSsrSlot>
<NuxtTeleportSsrSlot v-else-if="test" name="default" :props="undefined"><slot /></NuxtTeleportSsrSlot>
<NuxtTeleportSsrSlot v-else name="default" :props="undefined"><slot /></NuxtTeleportSsrSlot>
</template>
"
`)
})
})
describe('nuxt-client', () => {
describe('vite', () => {
it('test transform with vite', async () => {
const result = await viteTransform(`<template>
<div>
<HelloWorld />
<HelloWorld nuxt-client />
</div>
</template>
<script setup lang="ts">
import HelloWorld from './HelloWorld.vue'
</script>
`, 'hello.server.vue', true)
expect(normalizeLineEndings(result)).toMatchInlineSnapshot(`
"<template>
<div>
<HelloWorld />
<NuxtTeleportIslandComponent to="HelloWorld-CyH3UXLuYA" :nuxt-client="true"><HelloWorld /></NuxtTeleportIslandComponent>
</div>
</template>
<script setup lang="ts">
import { mergeProps as __mergeProps } from 'vue'
import { vforToArray as __vforToArray } from '#app/components/utils'
import NuxtTeleportIslandComponent from '#app/components/nuxt-teleport-island-component'
import NuxtTeleportSsrSlot from '#app/components/nuxt-teleport-island-slot'
import HelloWorld from './HelloWorld.vue'
</script>
"
`)
})
it('test dynamic nuxt-client', async () => {
const result = await viteTransform(`<template>
<div>
<HelloWorld />
<HelloWorld :nuxt-client="nuxtClient" />
</div>
</template>
<script setup lang="ts">
import HelloWorld from './HelloWorld.vue'
const nuxtClient = false
</script>
`, 'hello.server.vue', true)
expect(normalizeLineEndings(result)).toMatchInlineSnapshot(`
"<template>
<div>
<HelloWorld />
<NuxtTeleportIslandComponent to="HelloWorld-eo0XycWCUV" :nuxt-client="nuxtClient"><HelloWorld /></NuxtTeleportIslandComponent>
</div>
</template>
<script setup lang="ts">
import { mergeProps as __mergeProps } from 'vue'
import { vforToArray as __vforToArray } from '#app/components/utils'
import NuxtTeleportIslandComponent from '#app/components/nuxt-teleport-island-component'
import NuxtTeleportSsrSlot from '#app/components/nuxt-teleport-island-slot'
import HelloWorld from './HelloWorld.vue'
const nuxtClient = false
</script>
"
`)
})
it('should not transform if disabled', async () => {
const result = await viteTransform(`<template>
<div>
<HelloWorld />
<HelloWorld :nuxt-client="nuxtClient" />
</div>
</template>
<script setup lang="ts">
import HelloWorld from './HelloWorld.vue'
const nuxtClient = false
</script>
`, 'hello.server.vue', false)
expect(normalizeLineEndings(result)).toMatchInlineSnapshot(`
"<template>
<div>
<HelloWorld />
<HelloWorld :nuxt-client="nuxtClient" />
</div>
</template>
<script setup lang="ts">
import { mergeProps as __mergeProps } from 'vue'
import { vforToArray as __vforToArray } from '#app/components/utils'
import NuxtTeleportIslandComponent from '#app/components/nuxt-teleport-island-component'
import NuxtTeleportSsrSlot from '#app/components/nuxt-teleport-island-slot'
import HelloWorld from './HelloWorld.vue'
const nuxtClient = false
</script>
"
`)
})
it('should add import if there is no scripts in the SFC', async () => {
const result = await viteTransform(`<template>
<div>
<HelloWorld />
<HelloWorld nuxt-client />
</div>
</template>
`, 'hello.server.vue', true)
expect(result).toMatchInlineSnapshot(`
"<script setup>
import { mergeProps as __mergeProps } from 'vue'
import { vforToArray as __vforToArray } from '#app/components/utils'
import NuxtTeleportIslandComponent from '#app/components/nuxt-teleport-island-component'
import NuxtTeleportSsrSlot from '#app/components/nuxt-teleport-island-slot'</script><template>
<div>
<HelloWorld />
<NuxtTeleportIslandComponent to="HelloWorld-CyH3UXLuYA" :nuxt-client="true"><HelloWorld /></NuxtTeleportIslandComponent>
</div>
</template>
"
`)
expect(result).toContain('import NuxtTeleportIslandComponent from \'#app/components/nuxt-teleport-island-component\'')
})
it('should move v-if to the wrapper component', async () => {
const result = await viteTransform(`<template>
<div>
<HelloWorld v-if="false" nuxt-client />
<HelloWorld v-else-if="true" nuxt-client />
<HelloWorld v-else nuxt-client />
</div>
</template>
`, 'hello.server.vue', true)
expect(result).toMatchInlineSnapshot(`
"<script setup>
import { mergeProps as __mergeProps } from 'vue'
import { vforToArray as __vforToArray } from '#app/components/utils'
import NuxtTeleportIslandComponent from '#app/components/nuxt-teleport-island-component'
import NuxtTeleportSsrSlot from '#app/components/nuxt-teleport-island-slot'</script><template>
<div>
<NuxtTeleportIslandComponent v-if="false" to="HelloWorld-D9uaHyzL7X" :nuxt-client="true"><HelloWorld /></NuxtTeleportIslandComponent>
<NuxtTeleportIslandComponent v-else-if="true" to="HelloWorld-o4RZMtArnE" :nuxt-client="true"><HelloWorld /></NuxtTeleportIslandComponent>
<NuxtTeleportIslandComponent v-else to="HelloWorld-m1IbXHdd8O" :nuxt-client="true"><HelloWorld /></NuxtTeleportIslandComponent>
</div>
</template>
"
`)
})
})
describe('webpack', () => {
it('test transform with webpack', async () => {
const spyOnWarn = vi.spyOn(console, 'warn')
const result = await webpackTransform(`<template>
<div>
<!-- should not be wrapped by NuxtTeleportIslandComponent -->
<HelloWorld />
<!-- should be not wrapped by NuxtTeleportIslandComponent for now -->
<HelloWorld nuxt-client />
</div>
</template>
<script setup lang="ts">
import HelloWorld from './HelloWorld.vue'
const someData = 'some data'
</script>
`, 'hello.server.vue')
expect(normalizeLineEndings(result)).toMatchInlineSnapshot(`
"<template>
<div>
<!-- should not be wrapped by NuxtTeleportIslandComponent -->
<HelloWorld />
<!-- should be not wrapped by NuxtTeleportIslandComponent for now -->
<HelloWorld nuxt-client />
</div>
</template>
<script setup lang="ts">
import { mergeProps as __mergeProps } from 'vue'
import { vforToArray as __vforToArray } from '#app/components/utils'
import NuxtTeleportIslandComponent from '#app/components/nuxt-teleport-island-component'
import NuxtTeleportSsrSlot from '#app/components/nuxt-teleport-island-slot'
import HelloWorld from './HelloWorld.vue'
const someData = 'some data'
</script>
"
`)
expect(spyOnWarn).toHaveBeenCalledWith('nuxt-client attribute and client components within islands is only supported with Vite. file: hello.server.vue')
})
})
})
})