blob: 40da229ca680650a9b7f27d0d44a01a74f2e170b (
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// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator'))
class TestAsyncIterator extends AsyncIterator {
async next(value) {
return {done: false, value};
}
}
const methods = [
iter => iter.map(x => x),
iter => iter.filter(x => true),
iter => iter.take(2),
iter => iter.drop(0),
iter => iter.asIndexedPairs(),
];
for (const method of methods) {
const iterator = new TestAsyncIterator();
const iteratorHelper = method(iterator);
iteratorHelper.next().then(
_ => iteratorHelper.next('last value').then(
({done, value}) => {
assertEq(done, false);
// Unwrap the return value from asIndexedPairs.
assertEq(Array.isArray(value) ? value[1] : value, 'last value');
}
),
);
}
if (typeof reportCompare == 'function')
reportCompare(0, 0);
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