Allow EmbedRoot to be called multiple times.

mojo/services/view_manager/view_manager_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string>
 #include <vector>
 
 #include "base/at_exit.h"
 #include "base/auto_reset.h"
 #include "base/bind.h"
@@ skipping 300 matching lines @@
       connection_(&tracker_) {
     tracker_.set_delegate(&connection_);
   }
 
   // InterfaceImp:
   virtual void OnConnectionEstablished() OVERRIDE {
     connection_.set_router(internal_state()->router());
     connection_.set_view_manager(client());
   }
 
-  // ViewMangerClient:
+  // ViewManagerClient:
   virtual void OnViewManagerConnectionEstablished(
       ConnectionSpecificId connection_id,
       const String& creator_url,
       Array<NodeDataPtr> nodes) OVERRIDE {
     tracker_.OnViewManagerConnectionEstablished(
         connection_id, creator_url, nodes.Pass());
   }
   virtual void OnRootAdded(Array<NodeDataPtr> nodes) OVERRIDE {
     tracker_.OnRootAdded(nodes.Pass());
   }
@@ skipping 24 matching lines @@
                                   Id old_view_id) OVERRIDE {
     tracker_.OnNodeViewReplaced(node, new_view_id, old_view_id);
   }
   virtual void OnViewInputEvent(Id view_id,
                                 EventPtr event,
                                 const Callback<void()>& callback) OVERRIDE {
     tracker_.OnViewInputEvent(view_id, event.Pass());
   }
   virtual void OnFocusChanged(Id gained_focus_id,
                               Id lost_focus_id) OVERRIDE {}
+  virtual void EmbedRoot(const String& url) OVERRIDE {
+    tracker_.OnEmbedRoot(url);
+  }
   virtual void DispatchOnViewInputEvent(Id view_id,
                                         mojo::EventPtr event) OVERRIDE {
   }
 
  private:
   TestChangeTracker tracker_;
   ViewManagerProxy connection_;
 
   DISALLOW_COPY_AND_ASSIGN(TestViewManagerClientConnection);
 };
@@ skipping 134 matching lines @@
   shell::ShellTestHelper test_helper_;
 
   ViewManagerInitServicePtr view_manager_init_;
 
   ViewManagerProxy* connection_;
   ViewManagerProxy* connection2_;
 
   DISALLOW_COPY_AND_ASSIGN(ViewManagerTest);
 };
 
+TEST_F(ViewManagerTest, SecondEmbedRoot) {
+  ASSERT_TRUE(EmbedRoot(view_manager_init_.get(), kTestServiceURL));
+  connection_->DoRunLoopUntilChangesCount(1);
+  EXPECT_EQ(kTestServiceURL, connection_->changes()[0].embed_url);
+}
+
 // Verifies client gets a valid id.
 TEST_F(ViewManagerTest, ValidId) {
   // TODO(beng): this should really have the URL of the application that
   //             connected to ViewManagerInit.
   EXPECT_EQ("OnConnectionEstablished creator=",
             ChangesToDescription1(connection_->changes())[0]);
 
   // All these tests assume 1 for the client id. The only real assertion here is
   // the client id is not zero, but adding this as rest of code here assumes 1.
   EXPECT_EQ(1, connection_->changes()[0].connection_id);
@@ skipping 855 matching lines @@
 // originating connection.
 
 // TODO(beng): Add tests for focus:
 // - focus between two nodes known to a connection
 // - focus between nodes unknown to one of the connections.
 // - focus between nodes unknown to either connection.
 
 }  // namespace service
 }  // namespace view_manager
 }  // namespace mojo