Lasse R.H. Nielsen
0b58c4bd10
Retain the old values. Reapply of https://dart-review.googlesource.com/c/sdk/+/20680 with fixes for VM method fingerprints. Change-Id: Ie14e7ccc3194d5561983348e6b6752728913ff4d Reviewed-on: https://dart-review.googlesource.com/20664 Reviewed-by: Erik Ernst <eernst@google.com> Commit-Queue: Lasse R.H. Nielsen <lrn@google.com>
43 lines
1.1 KiB
Dart
43 lines
1.1 KiB
Dart
// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Tests the StreamView class.
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import "package:expect/expect.dart";
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import "dart:async";
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import "package:async_helper/async_helper.dart";
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main() {
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asyncStart();
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runTest().whenComplete(asyncEnd);
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}
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Future runTest() async {
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unreachable([a, b]) {
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throw "UNREACHABLE";
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}
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int tick = 0;
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ticker() {
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tick++;
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}
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asyncStart();
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// Is const constructor.
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Stream<int> s = const StreamView<int>(const Stream<int>.empty());
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Expect.isFalse(s is Stream<String>); // Respects type parameter.
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StreamSubscription<int> sub =
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s.listen(unreachable, onError: unreachable, onDone: ticker);
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Expect.isFalse(sub is StreamSubscription<String>); // Type parameter in sub.
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Stream iterableStream = new Stream.fromIterable([1, 2, 3]);
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Expect.listEquals([1, 2, 3], await iterableStream.toList());
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asyncEnd();
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}
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Future flushMicrotasks() => new Future.delayed(Duration.zero);
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