call-resolve-element-items.js (1391B)
1 // Copyright (C) 2015 André Bargull. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 es6id: 25.4.4.1.2 6 description: > 7 Cannot change result value of resolved Promise.all elements. 8 info: | 9 Promise.all Resolve Element Functions 10 11 1. Let alreadyCalled be the value of F's [[AlreadyCalled]] internal slot. 12 2. If alreadyCalled.[[value]] is true, return undefined. 13 3. Set alreadyCalled.[[value]] to true. 14 ... 15 ---*/ 16 17 var callCount = 0; 18 19 function Constructor(executor) { 20 function resolve(values) { 21 callCount += 1; 22 assert(Array.isArray(values), "values is array"); 23 assert.sameValue(values.length, 2, "values length"); 24 assert.sameValue(values[0], "expectedValue-p1", "values[0]"); 25 assert.sameValue(values[1], "expectedValue-p2", "values[1]"); 26 } 27 executor(resolve, Test262Error.thrower); 28 } 29 Constructor.resolve = function(v) { 30 return v; 31 }; 32 33 var p1 = { 34 then: function(onFulfilled, onRejected) { 35 onFulfilled("expectedValue-p1"); 36 onFulfilled("unexpectedValue-p1"); 37 } 38 }; 39 var p2 = { 40 then: function(onFulfilled, onRejected) { 41 onFulfilled("expectedValue-p2"); 42 onFulfilled("unexpectedValue-p2"); 43 } 44 }; 45 46 assert.sameValue(callCount, 0, "callCount before call to all()"); 47 48 Promise.all.call(Constructor, [p1, p2]); 49 50 assert.sameValue(callCount, 1, "callCount after call to all()"); 51 52 reportCompare(0, 0);