| // 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"; |
| |
| main() { |
| Expect.isTrue(null is Object); |
| Expect.isTrue(null is Null); |
| Expect.isFalse(null is int); |
| Expect.isFalse(null is bool); |
| Expect.isFalse(null is num); |
| Expect.isFalse(null is String); |
| Expect.isFalse(null is List); |
| Expect.isFalse(null is Expect); |
| |
| test(null); |
| |
| Expect.isFalse(1 is Null); |
| Expect.isFalse("1" is Null); |
| Expect.isFalse(true is Null); |
| Expect.isFalse(false is Null); |
| Expect.isFalse(new Object() is Null); |
| |
| testNegative(1); |
| testNegative("1"); |
| testNegative(true); |
| testNegative(false); |
| testNegative(new Object()); |
| } |
| |
| test(n) { |
| // Test where the argument is not a compile-time constant. |
| Expect.isTrue(n is Object); |
| Expect.isTrue(n is Null); |
| Expect.isFalse(n is int); |
| Expect.isFalse(n is bool); |
| Expect.isFalse(n is num); |
| Expect.isFalse(n is String); |
| Expect.isFalse(n is List); |
| Expect.isFalse(n is Expect); |
| } |
| |
| testNegative(n) { |
| Expect.isFalse(n is Null); |
| } |