base: add MockTimer

base/timer/mock_timer.cc

+// Copyright (c) 2014 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 "base/timer/mock_timer.h"
+
+namespace base {
+
+MockTimer::MockTimer(bool retain_user_task, bool is_repeating)
+    : Timer(retain_user_task, is_repeating),
+      is_running_(false) {
+}
+
+MockTimer::MockTimer(const tracked_objects::Location& posted_from,
+                     TimeDelta delay,
+                     const base::Closure& user_task,
+                     bool is_repeating)
+    : Timer(true, is_repeating),
+      delay_(delay),
+      is_running_(false) {
+}
+
+MockTimer::~MockTimer() {
+}
+
+bool MockTimer::IsRunning() const {
+  return is_running_;
+}
+
+base::TimeDelta MockTimer::GetCurrentDelay() const {
+  return delay_;
+}
+
+void MockTimer::Start(const tracked_objects::Location& posted_from,
+                      TimeDelta delay,
+                      const base::Closure& user_task) {
+  delay_ = delay;
+  user_task_ = user_task;
+  Reset();
+}
+
+void MockTimer::Stop() {
+  is_running_ = false;
+  if (!retain_user_task())
+    user_task_.Reset();
+}
+
+void MockTimer::Reset() {
+  DCHECK(!user_task_.is_null());
+  is_running_ = true;
+}
+
+void MockTimer::Fire() {
+  DCHECK(is_running_);
+  base::Closure old_task = user_task_;
+  if (is_repeating())
+    Reset();
+  else
+    Stop();
+  old_task.Run();
+}
+
+}  // namespace base