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05ca544f15
Change-Id: Iaa0ca2b4f2d1b15f79ddca37834d3ed2497bc068 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149242 Commit-Queue: Joshua Litt <joshualitt@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
30 lines
654 B
Dart
30 lines
654 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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// @dart = 2.7
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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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