blob: c21519d2bbc9af5facc24272cf6b4efc3785bdd0 [file] [log] [blame]
// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
library async_star_pause_test;
import "package:unittest/unittest.dart";
import "dart:async";
main() {
test("await for pauses stream during body", () async {
// Assumes await-for uses streamIterator.
var log = [];
var s = () async* {
for (int i = 0; i < 3; i++) {
log.add("$i-");
yield i;
// Should pause here until next iteration of await-for loop.
log.add("$i+");
}
}();
await for (var i in s) {
log.add("$i?");
await nextMicrotask();
log.add("$i!");
}
expect(log, ["0-", "0?", "0!", "0+",
"1-", "1?", "1!", "1+",
"2-", "2?", "2!", "2+"]);
});
}
Future nextMicrotask() => new Future.microtask((){});