Split Drive test utilities to drive_test_util and gdata_test_util

chrome/browser/chromeos/gdata/gdata_test_util.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_test_util.h"
+
+#include "base/file_util.h"
+#include "base/json/json_file_value_serializer.h"
+#include "base/message_loop.h"
+#include "base/path_service.h"
+#include "base/threading/sequenced_worker_pool.h"
+#include "chrome/common/chrome_paths.h"
+#include "content/public/browser/browser_thread.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+
+namespace gdata {
+namespace test_util {
+
+// This class is used to monitor if any task is posted to a message loop.
+class TaskObserver : public MessageLoop::TaskObserver {
+ public:
+  TaskObserver() : posted_(false) {}
+  virtual ~TaskObserver() {}
+
+  // MessageLoop::TaskObserver overrides.
+  virtual void WillProcessTask(base::TimeTicks time_posted) {}
+  virtual void DidProcessTask(base::TimeTicks time_posted) {
+    posted_ = true;
+  }
+
+  // Returns true if any task was posted.
+  bool posted() const { return posted_; }
+
+ private:
+  bool posted_;
+  DISALLOW_COPY_AND_ASSIGN(TaskObserver);
+};
+
+FilePath GetTestFilePath(const std::string& relative_path) {
+  FilePath path;
+  std::string error;
+  PathService::Get(chrome::DIR_TEST_DATA, &path);
+  path = path.AppendASCII("chromeos")
+      .Append(FilePath::FromUTF8Unsafe(relative_path));
+  EXPECT_TRUE(file_util::PathExists(path)) <<
+      "Couldn't find " << path.value();
+  return path;
+}
+
+void RunBlockingPoolTask() {
+  while (true) {
+    content::BrowserThread::GetBlockingPool()->FlushForTesting();
+
+    TaskObserver task_observer;
+    MessageLoop::current()->AddTaskObserver(&task_observer);
+    MessageLoop::current()->RunAllPending();
+    MessageLoop::current()->RemoveTaskObserver(&task_observer);
+    if (!task_observer.posted())
+      break;
+  }
+}
+
+
+scoped_ptr<base::Value> LoadJSONFile(const std::string& relative_path) {
+  FilePath path = GetTestFilePath(relative_path);
+
+  std::string error;
+  JSONFileValueSerializer serializer(path);
+  scoped_ptr<base::Value> value(serializer.Deserialize(NULL, &error));
+  EXPECT_TRUE(value.get()) <<
+      "Parse error " << path.value() << ": " << error;
+  return value.Pass();
+}
+
+}  // namespace test_util
+}  // namespace gdata