// |reftest| async // Copyright (C) 2018 Valerie Young. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-%asyncfromsynciteratorprototype%.next description: next() will reject promise if getter `value` abrupt completes info: | %AsyncFromSyncIteratorPrototype%.next ( value ) ... 2. Let promiseCapability be ! NewPromiseCapability(%Promise%). ... 5. Let nextResult be IteratorNext(syncIteratorRecord, value). 6. IfAbruptRejectPromise(nextResult, promiseCapability). 7. Let nextDone be IteratorComplete(nextResult). 8. If AbruptRejectPromise(nextDone, promiseCapability). 9. Let nextValue be IteratorValue(nextResult). 10. IfAbruptRejectPromise(nextValue, promiseCapability). ... 18. Return promiseCapability.[[Promise]]. flags: [async] features: [async-iteration] ---*/ var thrownError = new Error("Catch me."); var obj = { [Symbol.iterator]() { return { next() { return { get value() { throw thrownError; }, done: false } } }; } }; async function* asyncg() { yield* obj; } asyncg().next().then( function (result) { throw new Test262Error("Promise should be rejected."); }, function (err) { assert.sameValue(err, thrownError, "Promise should be rejected with thrown error"); } ).then($DONE, $DONE);