test/built-ins/Array/prototype/reduce/15.4.4.21-9-8.js


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// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-array.prototype.reduce
es5id: 15.4.4.21-9-8
description: Array.prototype.reduce - no observable effects occur if 'len' is 0
---*/

var accessed = false;
var callbackAccessed = false;

function callbackfn() {
  callbackAccessed = true;
}

var obj = {
  length: 0
};

Object.defineProperty(obj, "0", {
  get: function() {
    accessed = true;
    return 10;
  },
  configurable: true
});

Array.prototype.reduce.call(obj, function() {}, "initialValue");

assert.sameValue(accessed, false, 'accessed');
assert.sameValue(callbackAccessed, false, 'callbackAccessed');