Source code
Revision control
Copy as Markdown
Other Tools
// |reftest| async
// Copyright 2014 Cubane Canada, Inc. All rights reserved.
// See LICENSE for details.
/*---
es6id: S25.4.4.3_A4.1_T2
author: Sam Mikes
description: Promise.race rejects if IteratorStep throws
features: [Symbol.iterator]
flags: [async]
---*/
var iterThrows = {};
Object.defineProperty(iterThrows, Symbol.iterator, {
get: function() {
return {
next: function() {
var v = {};
Object.defineProperty(v, 'value', {
get: function() {
throw new Error("abrupt completion");
}
});
return v;
}
};
}
});
Promise.race(iterThrows).then(function() {
throw new Test262Error('Promise unexpectedly fulfilled: Promise.race(iterThrows) should throw TypeError');
}, function(err) {
assert(!!(err instanceof TypeError), 'The value of !!(err instanceof TypeError) is expected to be true');
}).then($DONE, $DONE);