next.js/test/e2e/app-dir/app/standalone-gsp.test.ts

import { nextTestSetup } from 'e2e-utils'
import fs from 'fs-extra'
import os from 'os'
import path from 'path'
import {
  findPort,
  initNextServerScript,
  killApp,
  fetchViaHTTP,
} from 'next-test-utils'

if (!(globalThis as any).isNextStart) {
  it('should skip for non-next start', () => {})
} else {
  describe('output: standalone with getStaticProps', () => {
    const { next, skipped } = nextTestSetup({
      files: __dirname,
      skipStart: true,
      dependencies: {
        swr: 'latest',
        nanoid: '4.0.1',
      },
    })

    if (skipped) {
      return
    }

    beforeAll(async () => {
      await next.patchFile(
        'next.config.js',
        (await next.readFile('next.config.js')).replace('// output', 'output')
      )

      await next.patchFile(
        'pages/gsp.js',
        `
        import useSWR from 'swr'

        console.log(useSWR)
        
        export default function Home() {
          return <h1>Hello</h1>
        }
        
        export async function getStaticProps() {
          return {
            props: {
              foo: "bar",
            },
          };
        }
      `
      )

      await next.start()
    })

    it('should work correctly with output standalone', async () => {
      const tmpFolder = path.join(os.tmpdir(), 'next-standalone-' + Date.now())
      await fs.move(path.join(next.testDir, '.next/standalone'), tmpFolder)
      let server: any

      try {
        const testServer = path.join(tmpFolder, 'server.js')
        const appPort = await findPort()
        server = await initNextServerScript(
          testServer,
          /- Local:/,
          {
            ...process.env,
            PORT: appPort.toString(),
          },
          undefined,
          {
            cwd: tmpFolder,
          }
        )

        const res = await fetchViaHTTP(appPort, '/gsp')
        expect(res.status).toBe(200)
      } finally {
        if (server) await killApp(server)
        await fs.remove(tmpFolder)
      }
    })
  })
}