test262/test/built-ins/Array/from/source-object-iterator-2.js

// Copyright 2015 Microsoft Corporation. All rights reserved.
// This code is governed by the license found in the LICENSE file.

/*---
description: Source object has iterator
esid: sec-array.from
es6id: 22.1.2.1
---*/

var array = [ 2, 4, 8, 16, 32, 64, 128 ];
var obj = {
    [Symbol.iterator]() {
        return {
            index: 0,
            next() {
                return {
                    value: this.val,
                    done: this.isDone
                };
            },
            isDone : false,
            get val() {
                this.index++;
                if (this.index > 7) {
                    this.isDone = true;
                }
                return 1 << this.index;
            }
        };
    }
};
var a = Array.from.call(Object, obj);
assert.sameValue(typeof a, typeof {}, "The returned type is expected to be object.");
for (var j = 0; j < a.length; j++) {
    assert.sameValue(a[j], array[j], "Elements mismatch at " + j + ".");
}