Add appengine/gcloud/mustache dependencies.

pkg/appengine/test/utils/mock_rpc.dart

Index: pkg/appengine/test/utils/mock_rpc.dart
diff --git a/pkg/appengine/test/utils/mock_rpc.dart b/pkg/appengine/test/utils/mock_rpc.dart
new file mode 100644
index 0000000000000000000000000000000000000000..4b75be71dc05623e7e0fccb0bb70b8c8bb1fe82e
--- /dev/null
+++ b/pkg/appengine/test/utils/mock_rpc.dart
@@ -0,0 +1,41 @@
+// 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.
+
+import 'dart:async';
+import 'dart:mirrors';
+
+import 'package:appengine/src/protobuf_api/rpc/rpc_service.dart';
+
+class MockRPCService extends RPCService {
+  String _service;
+  Map<String, Function> _handlers = {};
+
+  MockRPCService(this._service);
+
+  register(String method, Type requestType, Function handler) {
+    if (handler == null) {
+      _handlers.remove(method);
+    } else {
+      _handlers[method] = (List<int> bytes) {
+        var decodedRequest =
+            reflectClass(requestType).newInstance(#fromBuffer, [bytes]);
+        return handler(decodedRequest.reflectee);
+      };
+    }
+  }
+
+  Future<List<int>> call(String apiPackage,
+                         String method,
+                         List<int> requestProtocolBuffer,
+                         {String ticket}) {
+    if (_service != apiPackage) {
+      throw "This Mock only works for the $_service service.";
+    }
+
+    if (_handlers.containsKey(method)) {
+      return _handlers[method](requestProtocolBuffer);
+    }
+    throw "Not mock handler for $apiPackage.$method found";
+  }
+}