chromeos: Fix FilePath handling incompatibility between FakeDriveFileSystem::GetEntryInfoByResource…

chrome/browser/chromeos/drive/fake_drive_file_system_unittest.cc

 // Copyright 2013 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/drive/fake_drive_file_system.h"
 
 #include "base/message_loop.h"
 #include "chrome/browser/chromeos/drive/drive_file_system_util.h"
 #include "chrome/browser/google_apis/fake_drive_service.h"
 #include "chrome/browser/google_apis/test_util.h"
@@ skipping 45 matching lines @@
   google_apis::test_util::RunBlockingPoolTask();
 
   ASSERT_EQ(DRIVE_FILE_OK, error);
   EXPECT_EQ(
       util::GetDriveMyDriveRootPath().AppendASCII(
           "Directory 1/Sub Directory Folder"),
       file_path);
   EXPECT_TRUE(entry);  // Just make sure something is returned.
 }
 
+TEST_F(FakeDriveFileSystemTest,
+       GetEntryInfoByResourceId_PathCompatibleWithGetEntryInfoByPath) {
+  const std::string document_resource_id = "document:5_document_resource_id";
+
+  DriveFileError error = DRIVE_FILE_ERROR_FAILED;
+  scoped_ptr<DriveEntryProto> entry;
+  base::FilePath file_path;
+
+  // Get entry info by resource id.
+  fake_drive_file_system_->GetEntryInfoByResourceId(
+      document_resource_id,
+      google_apis::test_util::CreateCopyResultCallback(
+          &error, &file_path, &entry));
+  google_apis::test_util::RunBlockingPoolTask();
+
+  ASSERT_EQ(DRIVE_FILE_OK, error);
+  ASSERT_TRUE(entry);
+  EXPECT_TRUE(entry->file_specific_info().is_hosted_document());
+
+  // Get entry info by path given by GetEntryInfoByResourceId.
+  error = DRIVE_FILE_ERROR_FAILED;
+  entry.reset();
+  fake_drive_file_system_->GetEntryInfoByPath(
+      file_path,
+      google_apis::test_util::CreateCopyResultCallback(&error, &entry));
+  google_apis::test_util::RunBlockingPoolTask();
+
+  ASSERT_EQ(DRIVE_FILE_OK, error);
+  ASSERT_TRUE(entry);
+  EXPECT_EQ(document_resource_id, entry->resource_id());
+}
+
 TEST_F(FakeDriveFileSystemTest, GetEntryInfoByPath) {
   DriveFileError error = DRIVE_FILE_ERROR_FAILED;
   scoped_ptr<DriveEntryProto> entry;
   fake_drive_file_system_->GetEntryInfoByPath(
       util::GetDriveMyDriveRootPath().AppendASCII(
           "Directory 1/Sub Directory Folder"),
       google_apis::test_util::CreateCopyResultCallback(&error, &entry));
   google_apis::test_util::RunBlockingPoolTask();
 
   ASSERT_EQ(DRIVE_FILE_OK, error);
@@ skipping 23 matching lines @@
       util::GetDriveMyDriveRootPath().AppendASCII("Invalid File Name"),
       google_apis::test_util::CreateCopyResultCallback(&error, &entry));
   google_apis::test_util::RunBlockingPoolTask();
 
   ASSERT_EQ(DRIVE_FILE_ERROR_NOT_FOUND, error);
   ASSERT_FALSE(entry);
 }
 
 }  // namespace test_util
 }  // namespace drive