Implement TouchFile on drive::FileSystem.

chrome/browser/chromeos/drive/file_system/touch_operation_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/file_system/touch_operation.h"
+
+#include "base/files/file_path.h"
+#include "base/time.h"
+#include "chrome/browser/chromeos/drive/drive.pb.h"
+#include "chrome/browser/chromeos/drive/file_errors.h"
+#include "chrome/browser/chromeos/drive/file_system/operation_test_base.h"
+#include "chrome/browser/chromeos/drive/resource_metadata.h"
+#include "chrome/browser/google_apis/test_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace drive {
+namespace file_system {
+
+typedef OperationTestBase TouchOperationTest;
+
+TEST_F(TouchOperationTest, TouchFile) {
+  TouchOperation operation(blocking_task_runner(),
+                           dummy_observer(),
+                           scheduler(),
+                           metadata());
+
+  const base::FilePath kTestPath(FILE_PATH_LITERAL("drive/root/File 1.txt"));
+  const base::Time::Exploded kLastAccessTime = {
+    2012, 7, 0, 19, 15, 59, 13, 123
+  };
+  const base::Time::Exploded kLastModifiedTime = {
+    2013, 7, 0, 19, 15, 59, 13, 123
+  };
+
+  FileError error = FILE_ERROR_FAILED;
+  operation.TouchFile(
+      kTestPath,
+      base::Time::FromUTCExploded(kLastAccessTime),
+      base::Time::FromUTCExploded(kLastModifiedTime),
+      google_apis::test_util::CreateCopyResultCallback(&error));
+  google_apis::test_util::RunBlockingPoolTask();
+  EXPECT_EQ(FILE_ERROR_OK, error);
+
+  ResourceEntry entry;
+  base::PostTaskAndReplyWithResult(
+      blocking_task_runner(), FROM_HERE,
+      base::Bind(&internal::ResourceMetadata::GetResourceEntryByPath,
+                 base::Unretained(metadata()), kTestPath, &entry),
+      base::Bind(google_apis::test_util::CreateCopyResultCallback(&error)));
+  google_apis::test_util::RunBlockingPoolTask();
+  EXPECT_EQ(FILE_ERROR_OK, error);
+  EXPECT_EQ(base::Time::FromUTCExploded(kLastAccessTime),
+            base::Time::FromInternalValue(entry.file_info().last_accessed()));
+  EXPECT_EQ(base::Time::FromUTCExploded(kLastModifiedTime),
+            base::Time::FromInternalValue(entry.file_info().last_modified()));
+}
+
+}  // namespace file_system
+}  // namespace drive