First unit test using service lib.

tests/standalone/vmservice/allocations_test.dart

+// Copyright (c) 2014, 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.
+
+library allocations_test;
+
+import 'test_helper.dart';
+import 'package:expect/expect.dart';
+import 'package:observatory/service_io.dart';
+
+import 'dart:io';
+
+main() {
+  String script = 'allocations_script.dart';
+  var process = new TestLauncher(script);
+  process.launch().then((port) {
+    String addr = 'ws://localhost:$port/ws';
+    new WebSocketVM(new WebSocketVMTarget(addr)).get('vm')
+        .then((VM vm) => vm.isolates.first.load())
+        .then((Isolate isolate) => isolate.rootLib.load())
+        .then((Library lib) {
+          Expect.isTrue(lib.url.endsWith(script));
+          return lib.classes.first.load();
+        })
+        .then((Class fooClass) {
+          Expect.equals('Foo', fooClass.name);
+          Expect.equals(3,
+                        fooClass.newSpace.accumulated.instances +
+                        fooClass.oldSpace.accumulated.instances);
+          exit(0);
+        });
+  });
+}