Function getActual

lib/assert.js:577–585

(fn)

}

function getActual(fn) {
  validateFunction(fn, 'fn');
  try {
    fn();
  } catch (e) {
    return e;
  }
  return NO_EXCEPTION_SENTINEL;
}

function checkIsPromise(obj) {
  // Accept native ES6 promises and promises that are implemented in a similar