js/src/tests/test262/built-ins/Array/from/iter-cstm-ctor-err.js


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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.from
description: >
    Error creating object with custom constructor (traversed via iterator)
info: |
    [...]
    6. If usingIterator is not undefined, then
       a. If IsConstructor(C) is true, then
          i. Let A be Construct(C).
       b. Else,
          i. Let A be ArrayCreate(0).
       c. ReturnIfAbrupt(A).
features: [Symbol.iterator]
---*/

var C = function() {
  throw new Test262Error();
};
var items = {};
items[Symbol.iterator] = function() {};

assert.throws(Test262Error, function() {
  Array.from.call(C, items);
}, 'Array.from.call(C, items) throws a Test262Error exception');

reportCompare(0, 0);