| // 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 ZoneCallback<R> registerCallback<R>(R callback()) |
| /// Registers the given callback in this zone. |
| /// @description Checks that ZoneCallback is returned and that |
| /// registerCallback can be overridden by ZoneSpecification. |
| /// @author ilya |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| void test(Zone z) { |
| z.run(() { |
| Expect.equals(z, Zone.current); |
| }); |
| } |
| |
| main() { |
| Zone z = Zone.current; |
| |
| int f() => 0; |
| |
| ZoneCallback<int> callback = z.registerCallback<int>(f); |
| |
| Expect.isTrue(callback is ZoneCallback<int>); |
| Expect.runtimeIsType<ZoneCallback<int>>(callback); |
| Expect.equals(0, callback()); |
| |
| ZoneCallback<R> registerFunction<R>(Zone self, ZoneDelegate parent, Zone zone, R f()) { |
| return () => 42 as R; |
| } |
| |
| z.fork(specification: new ZoneSpecification(registerCallback: registerFunction)) |
| .run(() { |
| ZoneCallback<int> callback = Zone.current.registerCallback<int>(f); |
| Expect.isTrue(callback is ZoneCallback<int>); |
| Expect.runtimeIsType<ZoneCallback<int>>(callback); |
| Expect.equals(42, callback()); |
| }); |
| } |