blob: 6d733098f41c59bd59296a3442b4a344035b6741 [file] [log] [blame]
// Copyright (c) 2012, 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.
import "package:expect/expect.dart";
class AlwaysTrue {
operator ==(a) => true;
}
class AlwaysFalse {
operator ==(b) => false;
}
main() {
dynamic a = new AlwaysTrue();
Expect.isTrue(a == 2);
Expect.isFalse(a == null);
Expect.isFalse(a != 2);
Expect.isTrue(a != null);
a = new AlwaysFalse();
Expect.isFalse(a == 2);
Expect.isFalse(a == null);
Expect.isTrue(a != 2);
Expect.isTrue(a != null);
}