test rename overhaul: step 6 - isolate tests

tests/isolate/src/NestedSpawn2Test.dart

-// 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.
-
-// Dart test program for testing that isolates can spawn other isolates and
-// that the nested isolates can communicate with the main once the spawner has
-// disappeared.
-
-#library('NestedSpawn2Test');
-#import("dart:isolate");
-#import('../../../lib/unittest/unittest.dart');
-
-class IsolateA extends Isolate {
-  IsolateA() : super.heavy();
-
-  void main() {
-    this.port.receive((msg, replyTo) {
-      Expect.equals("launch nested!", msg);
-      new IsolateB().spawn().then((SendPort p) {
-        p.send(replyTo, null);
-        this.port.close();
-      });
-    });
-  }
-}
-
-String msg0 = "0 there?";
-String msg1 = "1 Yes.";
-String msg2 = "2 great. Think the other one is already dead?";
-String msg3 = "3 Give him some time.";
-String msg4 = "4 now?";
-String msg5 = "5 Now.";
-String msg6 = "6 Great. Bye";
-
-void _call(SendPort p, msg, void onreceive(m, replyTo)) {
-  final replyTo = new ReceivePort();
-  p.send(msg, replyTo.toSendPort());
-  replyTo.receive((m, r) {
-    replyTo.close();
-    onreceive(m, r);
-  });
-}
-
-class IsolateB extends Isolate {
-  IsolateB() : super.heavy();
-
-  void main() {
-    this.port.receive((mainPort, replyTo) {
-      this.port.close();
-      // Do a little ping-pong dance to give the intermediate isolate time to
-      // die.
-      _call(mainPort, msg0, ((msg, replyTo) {
-        Expect.equals("1", msg[0]);
-        _call(replyTo, msg2, ((msg, replyTo) {
-          Expect.equals("3", msg[0]);
-          _call(replyTo, msg4, ((msg, replyTo) {
-            Expect.equals("5", msg[0]);
-            replyTo.send(msg6, null);
-          }));
-        }));
-      }));
-    });
-  }
-}
-
-main() {
-  test("spawned isolate can spawn other isolates", () {
-    new IsolateA().spawn().then(expectAsync1((SendPort port) {
-      _call(port, "launch nested!", expectAsync2((msg, replyTo) {
-        Expect.equals("0", msg[0]);
-        _call(replyTo, msg1, expectAsync2((msg, replyTo) {
-          Expect.equals("2", msg[0]);
-          _call(replyTo, msg3, expectAsync2((msg, replyTo) {
-            Expect.equals("4", msg[0]);
-            _call(replyTo, msg5, expectAsync2((msg, replyTo) {
-              Expect.equals("6", msg[0]);
-            }));
-          }));
-        }));
-      }));
-    }));
-  });
-}