Async setup of environment with Jest

Question

Before running e2e tests in Jest I need to get an authentication token from the server.

Is it possible to do this globally one and set it somehow to the glo

Answer 1

Ini my case, I had to get the token for current session once. Here I used globalSetup property in jest config. Ref: https://jestjs.io/docs/en/configuration#globalsetup-string

My jest.config:

module.exports = {
  globalSetup: "./tests/global-setup.js",
  // ..other config... 
  globals: {
      TEST_EMAIL: 'test@test.com',
      TEST_PASSWORD: 'some_password',
  }
}

global-setup.js:

 module.exports = async function() {
  const getSessionToken = () => {
    // api call to get SessionToken
    /* return fetch() */
  }

  sessionToken = await getSessionToken();
  process.env.SESSION_TOKEN = sessionToken;
 }