Leaf Petersen
b101a7d002
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
46 lines
1.1 KiB
Dart
46 lines
1.1 KiB
Dart
// Copyright (c) 2012, 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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// @dart = 2.9
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library future_test;
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import "package:expect/expect.dart";
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import 'dart:async';
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main() {
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compare(func) {
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// Compare the results of the following two futures.
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Future f1 = new Future(func);
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Future f2 = new Future.value().then((_) => func());
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f2.catchError((_) {}); // I'll get the error later.
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f1.then((v1) {
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f2.then((v2) {
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Expect.equals(v1, v2);
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});
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}, onError: (e1) {
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f2.then((_) {
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Expect.fail("Expected error");
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}, onError: (e2) {
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Expect.equals(e1, e2);
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});
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});
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}
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Future val = new Future.value(42);
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Future err1 = new Future.error("Error")..catchError((_) {});
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compare(() => 42);
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compare(() => val);
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compare(() {
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throw "Flif";
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});
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compare(() => err1);
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bool hasExecuted = false;
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compare(() {
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hasExecuted = true;
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return 499;
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});
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Expect.isFalse(hasExecuted);
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}
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