blob: 5b8308af10a343dede6deab2d57155ecb177dbcd [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.
// Tests the StreamView class.
import "package:expect/expect.dart";
import "dart:async";
import "package:async_helper/async_helper.dart";
main() {
Future runTest() async {
unreachable([a,b]) { throw "UNREACHABLE"; }
int tick = 0;
ticker() { tick++; }
// Is const constructor.
Stream<int> s = const StreamView<int>(const Stream<int>.empty());
Expect.isFalse(s is Stream<String>); // Respects type parameter.
StreamSubscription<int> sub =
s.listen(unreachable, onError: unreachable, onDone: ticker);
Expect.isFalse(sub is StreamSubscription<String>); // Type parameter in sub.
Stream iterableStream = new Stream.fromIterable([1, 2, 3]);
Expect.listEquals([1, 2, 3], await iterableStream.toList());
Future flushMicrotasks() => new Future.delayed(Duration.ZERO);