content/browser/fileapi/timed_task_helper_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/basictypes.h"
   6 #include "base/bind.h"
   7 #include "base/location.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/message_loop/message_loop_proxy.h"
  10 #include "base/run_loop.h"
  11 #include "base/time/time.h"
  12 #include "storage/browser/fileapi/timed_task_helper.h"
  13 #include "testing/gtest/include/gtest/gtest.h"
  14
  15 using storage::TimedTaskHelper;
  16
  17 namespace content {
  18
  19 namespace {
  20
  21 class Embedder {
  22  public:
  23   Embedder()
  24       : timer_(base::MessageLoopProxy::current().get()), timer_fired_(false) {}
  25
  26   void OnTimerFired() {
  27     timer_fired_ = true;
  28   }
  29
  30   TimedTaskHelper* timer() { return &timer_; }
  31   bool timer_fired() const { return timer_fired_; }
  32
  33  private:
  34   TimedTaskHelper timer_;
  35   bool timer_fired_;
  36 };
  37
  38 }  // namespace
  39
  40 TEST(TimedTaskHelper, FireTimerWhenAlive) {
  41   base::MessageLoop message_loop;
  42   Embedder embedder;
  43
  44   ASSERT_FALSE(embedder.timer_fired());
  45   ASSERT_FALSE(embedder.timer()->IsRunning());
  46
  47   embedder.timer()->Start(
  48       FROM_HERE,
  49       base::TimeDelta::FromSeconds(0),
  50       base::Bind(&Embedder::OnTimerFired, base::Unretained(&embedder)));
  51
  52   ASSERT_TRUE(embedder.timer()->IsRunning());
  53   embedder.timer()->Reset();
  54   ASSERT_TRUE(embedder.timer()->IsRunning());
  55
  56   base::RunLoop().RunUntilIdle();
  57
  58   ASSERT_TRUE(embedder.timer_fired());
  59 }
  60
  61 TEST(TimedTaskHelper, FireTimerWhenAlreadyDeleted) {
  62   base::MessageLoop message_loop;
  63
  64   // Run message loop after embedder is already deleted to make sure callback
  65   // doesn't cause a crash for use after free.
  66   {
  67     Embedder embedder;
  68
  69     ASSERT_FALSE(embedder.timer_fired());
  70     ASSERT_FALSE(embedder.timer()->IsRunning());
  71
  72     embedder.timer()->Start(
  73         FROM_HERE,
  74         base::TimeDelta::FromSeconds(0),
  75         base::Bind(&Embedder::OnTimerFired, base::Unretained(&embedder)));
  76
  77     ASSERT_TRUE(embedder.timer()->IsRunning());
  78   }
  79
  80   // At this point the callback is still in the message queue but
  81   // embedder is gone.
  82   base::RunLoop().RunUntilIdle();
  83 }
  84
  85 }  // namespace content