add test

test/integration/getinitialprops/next.config.js

@@ -0,0 +1,11 @@
+module.exports = {
+  // replace me
+  async rewrites() {
+    return [
+      {
+        source: '/blog/post/:pid',
+        destination: '/blog/:pid',
+      },
+    ]
+  },
+}

test/integration/getinitialprops/pages/blog/[post].js

@@ -0,0 +1,16 @@
+import React from 'react'
+import { useRouter } from 'next/router'
+
+const Post = () => {
+  const router = useRouter()
+
+  return (
+    <>
+      <div id="as-path">{router.asPath}</div>
+    </>
+  )
+}
+
+Post.getInitialProps = () => ({ hello: 'hi' })
+
+export default Post

test/integration/getinitialprops/pages/index.js

@@ -0,0 +1,3 @@
+const page = () => 'hello from sub id'
+page.getInitialProps = () => ({ hello: 'hi' })
+export default page

test/integration/getinitialprops/pages/normal.js

@@ -0,0 +1 @@
+export default () => <p id="normal-text">a normal page</p>

test/integration/getinitialprops/test/index.test.js

@@ -0,0 +1,81 @@
+import cheerio from 'cheerio'
+import { join } from 'path'
+import {
+  findPort,
+  launchApp,
+  killApp,
+  nextStart,
+  nextBuild,
+  renderViaHTTP,
+  File,
+} from 'next-test-utils'
+
+jest.setTimeout(1000 * 60 * 5)
+let app
+let appPort
+const appDir = join(__dirname, '..')
+const nextConfig = new File(join(appDir, 'next.config.js'))
+
+const runTests = () => {
+  it('should have gip in __NEXT_DATA__', async () => {
+    const html = await renderViaHTTP(appPort, '/')
+    const $ = cheerio.load(html)
+    expect(JSON.parse($('#__NEXT_DATA__').text()).gip).toBe(true)
+  })
+
+  it('should not have gip in __NEXT_DATA__ for non-GIP page', async () => {
+    const html = await renderViaHTTP(appPort, '/normal')
+    const $ = cheerio.load(html)
+    expect('gip' in JSON.parse($('#__NEXT_DATA__').text())).toBe(false)
+  })
+
+  it('should have correct router.asPath for direct visit dynamic page', async () => {
+    const html = await renderViaHTTP(appPort, '/blog/1')
+    const $ = cheerio.load(html)
+    expect($('#as-path').text()).toBe('/blog/1')
+  })
+
+  it('should have correct router.asPath for direct visit dynamic page rewrite direct', async () => {
+    const html = await renderViaHTTP(appPort, '/blog/post/1')
+    const $ = cheerio.load(html)
+    expect($('#as-path').text()).toBe('/blog/post/1')
+  })
+}
+
+describe('getInitialProps', () => {
+  describe('dev mode', () => {
+    beforeAll(async () => {
+      appPort = await findPort()
+      app = await launchApp(appDir, appPort)
+    })
+    afterAll(() => killApp(app))
+
+    runTests()
+  })
+
+  describe('serverless mode', () => {
+    beforeAll(async () => {
+      await nextConfig.replace('// replace me', `target: 'serverless', `)
+      await nextBuild(appDir)
+      appPort = await findPort()
+      app = await nextStart(appDir, appPort)
+    })
+    afterAll(async () => {
+      await killApp(app)
+      nextConfig.restore()
+    })
+
+    runTests()
+  })
+
+  describe('production mode', () => {
+    beforeAll(async () => {
+      await nextBuild(appDir)
+      appPort = await findPort()
+      app = await nextStart(appDir, appPort)
+    })
+    afterAll(() => killApp(app))
+
+    runTests()
+  })
+})