test262/src/async-generators/yield-promise-reject-next-f...

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// Copyright (C) 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: yield * [Promise.reject(value)] is treated as throw value
template: default
flags: [async]
---*/
//- setup
let error = new Error();
async function * readFile() {
yield Promise.reject(error);
yield "unreachable";
}
//- body
for await (let line of readFile()) {
yield line;
}
//- assertions
iter.next().then(() => {
throw new Test262Error("Promise incorrectly resolved.");
}, rejectValue => {
// yield Promise.reject(error);
assert.sameValue(rejectValue, error);
iter.next().then(({done, value}) => {
// iter is closed now.
assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
}).then($DONE, $DONE);
}).catch($DONE);