gdata: Fix a bug that caused google drive not to load

chrome/browser/chromeos/gdata/gdata_files_unittest.cc

 // Copyright (c) 2012 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 "chrome/browser/chromeos/gdata/gdata_files.h"
 
 #include <string>
 #include <utility>
 #include <vector>
+#include "chrome/browser/chromeos/gdata/gdata.pb.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace gdata {
 
 TEST(GDataRootDirectoryTest, RemoveTemporaryFilesFromCacheMap) {
   scoped_ptr<GDataRootDirectory> root(new GDataRootDirectory);
   GDataRootDirectory::CacheMap cache_map;
   cache_map.insert(std::make_pair(
       "<resource_id_1>",
       new GDataRootDirectory::CacheEntry(
@@ skipping 21 matching lines @@
   root->SetCacheMap(cache_map);
   root->RemoveTemporaryFilesFromCacheMap();
   // resource 1 and 4 should be gone, as these are CACHE_TYPE_TMP.
   ASSERT_TRUE(root->GetCacheEntry("<resource_id_1>", "") == NULL);
   ASSERT_TRUE(root->GetCacheEntry("<resource_id_2>", "") != NULL);
   ASSERT_TRUE(root->GetCacheEntry("<resource_id_3>", "") != NULL);
   ASSERT_TRUE(root->GetCacheEntry("<resource_id_4>", "") == NULL);
 
 }
 
+TEST(GDataRootDirectoryTest, ParseFromString_DetectBadTitle) {
+  GDataRootDirectoryProto proto;
+
+  std::string serialized_proto;
+  ASSERT_TRUE(proto.SerializeToString(&serialized_proto));
+
+  GDataRootDirectory root;
+  // This should fail as the title is empty.
+  // root.title() should be unchanged.
+  ASSERT_FALSE(root.ParseFromString(serialized_proto));
+  ASSERT_EQ("drive", root.title());
+
+  // Setting the title to "gdata".
+  proto.mutable_gdata_directory()->mutable_gdata_entry()->set_title("gdata");
+  ASSERT_TRUE(proto.SerializeToString(&serialized_proto));
+
+  // This should fail as the title is not "drive".
+  // root.title() should be unchanged.
+  ASSERT_FALSE(root.ParseFromString(serialized_proto));
+  ASSERT_EQ("drive", root.title());
+
+  // Setting the title to "drive".
+  proto.mutable_gdata_directory()->mutable_gdata_entry()->set_title("drive");
+  ASSERT_TRUE(proto.SerializeToString(&serialized_proto));
+
+  // This should succeed as the title is "drive".
+  ASSERT_TRUE(root.ParseFromString(serialized_proto));
+  ASSERT_EQ("drive", root.title());
+}
+
 }  // namespace gdata