TypeError: Cannot read property 'inDev' of undefined

[Pacheco95]

I'm following this article https://preview.adonisjs.com/blog/running-tests-in-adonisjs-v5/#interacting-with-the-database
to configure my test environment with database interaction but using Jest instead of Japa.
I made a very simple test suite to ensure the migrations are running ok, but when I start the test a problem occurs when startHttpServer() function is called.

❯ reset && npx jest migrations.spec.ts
 RUNS  test/migrations.spec.ts
 > Migrations source base dir: build
 > Last compiled at: Sep 16, 2020, 12:25 PM

❯ migrating database/migrations/sqlite/1587988332388_users
❯ migrated database/migrations/sqlite/1587988332388_users

Migrated in 24 ms
 > Migrations source base dir: build
 > Last compiled at: Sep 16, 2020, 12:25 PM

❯ reverting database/migrations/sqlite/1587988332388_users
❯ reverted database/migrations/sqlite/1587988332388_users
 FAIL  test/migrations.spec.ts
  Migrations
    ✕ should pass (2 ms)

  ● Migrations › should pass

    TypeError: Cannot read property 'inDev' of undefined

      at ErrorHandler.handleError (node_modules/@adonisjs/core/build/src/Ignitor/ErrorHandler/index.js:36:30)
      at HttpServer.start (node_modules/@adonisjs/core/build/src/Ignitor/HttpServer/index.js:169:69)

Test Suites: 1 failed, 1 total
Tests:       1 failed, 1 total
Snapshots:   0 total
Time:        2.573 s, estimated 3 s
Ran all test suites matching /migrations.spec.ts/i.

// test/migrations.spec.ts
import { runMigrations, rollbackMigrations, startHttpServer } from './utils'

describe('Migrations', () => {
  beforeAll(() => runMigrations().then(startHttpServer))
  afterAll(rollbackMigrations)

  it('should pass', () => {
    expect(2+2).toBe(4)
  })
})

// test/utils.ts
import 'reflect-metadata'
import execa from 'execa'
import { join } from 'path'
import getPort from 'get-port'
import sourceMapSupport from 'source-map-support'

process.env.NODE_ENV = 'testing'
process.env.ADONIS_ACE_CWD = join(__dirname, '..')
sourceMapSupport.install({ handleUncaughtExceptions: false })

export async function runMigrations () {
  await execa.node('ace', ['migration:run'], {
    stdio: 'inherit',
  })
}

export async function rollbackMigrations () {
  await execa.node('ace', ['migration:rollback'], {
    stdio: 'inherit',
  })
}

export async function startHttpServer () {
  const { Ignitor } = await import('@adonisjs/core/build/src/Ignitor')
  const randomPort = await getPort()
  process.env.PORT = String(randomPort)
  await new Ignitor(__dirname).httpServer().start()
}

I found this closed issue but without any explanation #1387