Testing async/await blocking

testing_async.js

function testPromises() {
  Promise.all([someAsynchronousFunction().then(() => {
    console.log('first function finished');

  }), someOtherAsynchronousFunction().then(() => {
    console.log('second finished');

  })]).then(() => {
    console.timeEnd('testPromises');
  })
}

async function testAsync() {
  const res1 = await someAsynchronousFunction();
  console.log(`res1 retrieved: ${res1}`);
  res2 = await someOtherAsynchronousFunction();
  console.log(`res2 retrieved: ${res2}`);
  console.timeEnd('testAsync');
}

function someAsynchronousFunction() {
  return new Promise((resolve, reject) => setTimeout(() => {
    console.log('first called')
    resolve('hello');
  }, 90))
}

function someOtherAsynchronousFunction() {
  return new Promise((resolve, reject) => setTimeout(() => {
    console.log('second called')
    resolve('hello');
  }, 50))
}

//console.time('testPromises'); //average of about 102ms
//testPromises();
console.time('testAsync'); //average of about 182ms
testAsync();