JSTests/es6/Promise_Promise.race_generic_iterables.js

var global = this;

function __createIterableObject(arr, methods) {
  methods = methods || {};
  if (typeof Symbol !== 'function' || !Symbol.iterator) {
    return {};
  }
  arr.length++;
  var iterator = {
    next: function() {
      return { value: arr.shift(), done: arr.length <= 0 };
    },
    'return': methods['return'],
    'throw': methods['throw']
  };
  var iterable = {};
  iterable[Symbol.iterator] = function(){ return iterator; }
  return iterable;
}

function test() {
var passed = false;
function asyncTestPassed() {
    passed = true;
}

var fulfills = Promise.race(global.__createIterableObject([
  new Promise(function(resolve)   { setTimeout(resolve,200,"foo"); }),
  new Promise(function(_, reject) { setTimeout(reject, 300,"bar"); }),
]));
var rejects = Promise.race(global.__createIterableObject([
  new Promise(function(_, reject) { setTimeout(reject, 200,"baz"); }),
  new Promise(function(resolve)   { setTimeout(resolve,300,"qux"); }),
]));
var score = 0;
fulfills.then(function(result) { score += (result === "foo"); check(); });
rejects.catch(function(result) { score += (result === "baz"); check(); });

function check() {
  if (score === 2) asyncTestPassed();
}
      
drainMicrotasks();
return passed;
}

if (!test())
    throw new Error("Test failed");