gdata: Define the resource ID for the root directory

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"
@@ skipping 36 matching lines @@
   ASSERT_TRUE(root->GetCacheEntry("<resource_id_3>", "") != NULL);
   ASSERT_TRUE(root->GetCacheEntry("<resource_id_4>", "") == NULL);
 
 }
 
 TEST(GDataRootDirectoryTest, ParseFromString_DetectBadTitle) {
   GDataRootDirectoryProto proto;
   GDataEntryProto* mutable_entry =
       proto.mutable_gdata_directory()->mutable_gdata_entry();
   mutable_entry->mutable_file_info()->set_is_directory(true);
+  mutable_entry->set_resource_id(kGDataRootDirectoryResourceId);
 
   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());
+  ASSERT_EQ(kGDataRootDirectory, root.title());
 
   // Setting the title to "gdata".
   mutable_entry->set_title("gdata");
   ASSERT_TRUE(proto.SerializeToString(&serialized_proto));
 
-  // This should fail as the title is not "drive".
+  // This should fail as the title is not kGDataRootDirectory.
   // root.title() should be unchanged.
   ASSERT_FALSE(root.ParseFromString(serialized_proto));
-  ASSERT_EQ("drive", root.title());
+  ASSERT_EQ(kGDataRootDirectory, root.title());
 
-  // Setting the title to "drive".
-  mutable_entry->set_title("drive");
+  // Setting the title to kGDataRootDirectory.
+  mutable_entry->set_title(kGDataRootDirectory);
   ASSERT_TRUE(proto.SerializeToString(&serialized_proto));
 
-  // This should succeed as the title is "drive".
+  // This should succeed as the title is kGDataRootDirectory.
   ASSERT_TRUE(root.ParseFromString(serialized_proto));
-  ASSERT_EQ("drive", root.title());
+  ASSERT_EQ(kGDataRootDirectory, root.title());
+}
+
+TEST(GDataRootDirectoryTest, ParseFromString_DetectBadResourceID) {
+  GDataRootDirectoryProto proto;
+  GDataEntryProto* mutable_entry =
+      proto.mutable_gdata_directory()->mutable_gdata_entry();
+  mutable_entry->mutable_file_info()->set_is_directory(true);
+  mutable_entry->set_title(kGDataRootDirectory);
+
+  std::string serialized_proto;
+  ASSERT_TRUE(proto.SerializeToString(&serialized_proto));
+
+  GDataRootDirectory root;
+  // This should fail as the resource ID is empty.
+  // root.resource_id() should be unchanged.
+  ASSERT_FALSE(root.ParseFromString(serialized_proto));
+  EXPECT_EQ(kGDataRootDirectoryResourceId, root.resource_id());
+
+  // Set the correct resource ID.
+  mutable_entry->set_resource_id(kGDataRootDirectoryResourceId);
+  ASSERT_TRUE(proto.SerializeToString(&serialized_proto));
+
+  // This should succeed as the resource ID is correct.
+  ASSERT_TRUE(root.ParseFromString(serialized_proto));
+  EXPECT_EQ(kGDataRootDirectoryResourceId, root.resource_id());
+}
+
+TEST(GDataRootDirectoryTest, GetEntryByResourceId_RootDirectory) {
+  GDataRootDirectory root;
+  // Look up the root directory by its resource ID.
+  GDataEntry* entry = root.GetEntryByResourceId(kGDataRootDirectoryResourceId);
+  ASSERT_TRUE(entry);
+  EXPECT_TRUE(entry->AsGDataRootDirectory());
+  EXPECT_EQ(&root, entry->AsGDataRootDirectory());
 }
 
 }  // namespace gdata