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912005267d
Change-Id: I46be49b2effec3e38a3dc44cd45cfe736f77fa78 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182680 Commit-Queue: Sigmund Cherem <sigmund@google.com> Reviewed-by: Joshua Litt <joshualitt@google.com> Reviewed-by: Nicholas Shahan <nshahan@google.com> Reviewed-by: Stephen Adams <sra@google.com>
27 lines
638 B
Dart
27 lines
638 B
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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import "package:expect/expect.dart";
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class AlwaysTrue {
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operator ==(a) => true;
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}
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class AlwaysFalse {
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operator ==(b) => false;
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}
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main() {
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dynamic a = new AlwaysTrue();
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Expect.isTrue(a == 2);
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Expect.isFalse(a == null);
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Expect.isFalse(a != 2);
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Expect.isTrue(a != null);
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a = new AlwaysFalse();
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Expect.isFalse(a == 2);
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Expect.isFalse(a == null);
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Expect.isTrue(a != 2);
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Expect.isTrue(a != null);
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}
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