test262/test/language/statements/for-of/iterator-next-error.js

29 lines
660 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: 13.6.4.13 S5.d
description: >
If `nextResult` is an abrupt completion as per IteratorStep (ES6 7.4.5),
return the completion.
features: [Symbol.iterator]
---*/
var iterable = {};
var iterationCount = 0;
iterable[Symbol.iterator] = function() {
return {
next: function() {
throw new Test262Error();
}
};
};
assert.throws(Test262Error, function() {
for (var x of iterable) {
iterationCount += 1;
}
});
assert.sameValue(iterationCount, 0, 'The loop body is not evaluated');