test.ts

import { ClientEngineType, getClientEngineType } from '@prisma/internals'

import { getTestClient } from '../../../../utils/getTestClient'

const testIf = (condition: boolean) => (condition ? test : test.skip)

testIf(getClientEngineType() === ClientEngineType.Binary)('exit-hook for sigint', async () => {
  expect.assertions(2)

  const PrismaClient = await getTestClient()
  const prisma = new PrismaClient()

  // set up beforeExit hook and make sure we have the result available outside
  let beforeExitResult
  prisma.$on('beforeExit', () => {
    beforeExitResult = doWork(prisma)
  })

  // set up our own additional handler for SIGINT
  let processHookCalled = false
  process.on('SIGINT', () => {
    processHookCalled = true
  })

  // trigger via: emit SIGINT
  process.emit('SIGINT', 'SIGINT')

  // expectations
  expect(processHookCalled).toBe(true)
  beforeExitResult = await beforeExitResult
  expect(beforeExitResult).toMatchInlineSnapshot(`
    [
      {
        email: a@a.de,
        id: 576eddf9-2434-421f-9a86-58bede16fd95,
        name: Alice,
      },
    ]
  `)
  await prisma.$disconnect()
})

async function doWork(prisma: Awaited<ReturnType<typeof getTestClient>>) {
  const users = await prisma.user.findMany()
  return users
}