test262/test/built-ins/Map/iterator-next-failure.js

29 lines
598 B
JavaScript

// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 23.1.1.1
description: >
The iterator is closed when iterable `next` throws an error.
info: >
Map ( [ iterable ] )
...
9. Repeat
a. Let next be IteratorStep(iter).
b. ReturnIfAbrupt(next).
features: [Symbol.iterator]
---*/
var iterable = {};
iterable[Symbol.iterator] = function() {
return {
next: function() {
throw new Test262Error();
}
};
};
assert.throws(Test262Error, function() {
new Map(iterable);
});