blob: e75f2ca766309add355a4b068a07e60fe82e80da [file] [log] [blame]
// Copyright (c) 2011, 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";
void not1() {
var x = !true;
Expect.equals(false, x);
}
void not2() {
var x = true;
var y = !x;
Expect.equals(false, y);
}
void not3() {
var x = true;
var y = !x;
var z = !y;
Expect.equals(true, z);
}
void not4() {
var x = true;
if (!x) Expect.fail('unreachable');
Expect.equals(true, x);
}
void main() {
not1();
not2();
not3();
not4();
}