bfunc

const wait = ms => new Promise(r => setTimeout(() => r(), ms));

const fetchPosts = (context, event) => {
  const { q: num } = context;
  console.log('> fetchPosts',num)

  if (num == 5) {
    return new Promise((r, reject) => reject(new Error('Oh too bad...')));
  }

bfunc

const wait = ms => new Promise(r => setTimeout(() => r(), ms))
const fetchResource = async ({ url, fakeDelayMs = 0 }) => {
  await wait(fakeDelayMs)
  return fetch(url).then(res => res.json())
}
const constants = {
  MAX_QUESTION_SCORE: 3,
  MAX_RETRIES: 15,
  FAILURE_DELAY: 2000,

bfunc

// The Door - state machine
const fetchMachine = Machine({
    id: 'TheDoor',
    initial: 'locked',
    context: {},
    states: {
      locked:{
        id:'locked',
        on: { UNLOCK: 'unlocked' }
      },

bfunc

  // Available variables:
  // - Machine
  // - interpret
  // - assign
  // - send
  // - sendParent
  // - spawn
  // - raise
  // - actions

bfunc

type Config = {
  logPerformance?: boolean;
  timeout?: number; // Timeout in milliseconds
};

function createTestRunner(initialConfig?: Config) {
  let globalConfig: Config = {
    logPerformance: false,
    timeout: 5000,
    ...initialConfig,