| /* |
| * 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. |
| */ |
| /** |
| * @assertion The is-expression e is! T is equivalent to !(e is T). |
| * @description Checks that the is!-expression is evaluated correctly. |
| * @author msyabro |
| * @reviewer kaigorodov |
| */ |
| import '../../../Utils/expect.dart'; |
| |
| abstract class I { |
| factory I() {return new C();} |
| } |
| |
| class A { |
| A() {} |
| } |
| class B extends A {} |
| class C extends B implements I {} |
| |
| main() { |
| Expect.isFalse(1 is! int); |
| Expect.isFalse(1.0 is! double); |
| Expect.isFalse("string" is! String); |
| Expect.isFalse(null is! Object); |
| Expect.isFalse(() {} is! Function); |
| Expect.isFalse(new Object() is! dynamic); |
| |
| Expect.isFalse(new I() is! I); |
| Expect.isFalse(new I() is! A); |
| Expect.isFalse(new I() is! C); |
| Expect.isFalse(new A() is! A); |
| Expect.isFalse(new B() is! B); |
| Expect.isFalse(new B() is! A); |
| Expect.isFalse(new C() is! I); |
| Expect.isFalse(new C() is! A); |
| Expect.isFalse(new C() is! B); |
| Expect.isFalse(new C() is! C); |
| |
| Expect.isFalse(new I() is! Object); |
| Expect.isFalse(new A() is! Object); |
| Expect.isFalse(new B() is! Object); |
| Expect.isFalse(new C() is! Object); |
| |
| Expect.isTrue(null is! int); |
| Expect.isTrue(1 is! String); |
| Expect.isTrue("" is! List); |
| |
| Expect.isTrue(new A() is! C); |
| Expect.isTrue(new B() is! C); |
| Expect.isTrue(new A() is! I); |
| |
| } |