How to test environment variables before all tests and fail if an env is undefined?

Question

Is there a way to test env before all tests and not to proceed if an env is undefined. I initially tried to define my dotenv in package.json:

"jest": {
    "verbose": true,
    "testEnvironment": "node",
    "roots": [
      "__tests__",
      "bin",
      "src"
    ],
    "setupFiles": [
      "<rootDir>/__tests__/env-setup.js"
    ],
    "modulePathIgnorePatterns": [
      "<rootDir>/docs",
      "<rootDir>/__tests__/files",
      "<rootDir>/__tests__/helpers",
      "<rootDir>/__tests__/env-setup"
    ]
  },

and after reading Test process.env with Jest but that didn't work so wrote my test as:

file /__tests__/env.test.js:

import dotenv from 'dotenv'
dotenv.config()

const envObj = {
  foo: process.env.FOO,
  bar: process.env.BAR,
}

describe('env tests', () => {
  Object.keys(envObj).map((k, i) => {
    it(`testing ${Object.keys(envObj)[i]}`, () => {
      expect(envObj[k]).toBeDefined()
      if (envObj[k] === undefined) new Error(`Missing env variable for "${Object.keys(envObj)[i]}"`)
    })
  })
})

and while this will error out after the test is still proceeds with all tests. After my research I did find beforeAll and wrote:

file /__tests__/env.index.js:

import dotenv from 'dotenv'
dotenv.config()

const envObj = {
  foo: process.env.FOO,
  bar: process.env.BAR,
}

beforeAll(() => {
  return new Promise((res, rej) => {
    Object.keys(envObj).map((k, i) => {
      if (envObj[k] === undefined)
        rej(new Error(`Missing env variable for "${Object.keys(envObj)[i]}"`))
    })
    res()
  })
})

but then my issue is this has to be before every file and it still runs further tests. Further research to see if this has been asked I've read through:

• how to reset module imported between tests
• How do I mock .env variables in Jest?
• Using .env files for unit testing with jest
• How can I mock a env.dev.js file using Jest?
• set env variable when Running jest
• Jest test not reading environment variables with dotenv
• Environment variables undefined in NextJS when running Jest
• Using environment variables in Node and Jest

In Jest is there a way to run an env test before all tests and the first instance a variable is undefined it will stop any further tests?