task_unittest.cc revision ddb351dbec246cf1fab5ec20d2d5520909041de1 
1// Copyright (c) 2011 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/memory/ref_counted.h"
6#include "base/task.h"
7#include "testing/gtest/include/gtest/gtest.h"
8
9namespace {
10
11class CancelInDestructor : public base::RefCounted<CancelInDestructor> {
12 public:
13  CancelInDestructor() : cancelable_task_(NULL) {}
14
15  void Start() {
16    if (cancelable_task_) {
17      ADD_FAILURE();
18      return;
19    }
20    AddRef();
21    cancelable_task_ = NewRunnableMethod(
22        this, &CancelInDestructor::NeverIssuedCallback);
23    Release();
24  }
25
26  CancelableTask* cancelable_task() {
27    return cancelable_task_;
28  }
29
30 private:
31  friend class base::RefCounted<CancelInDestructor>;
32
33  ~CancelInDestructor() {
34    if (cancelable_task_)
35      cancelable_task_->Cancel();
36  }
37
38  void NeverIssuedCallback() { NOTREACHED(); }
39
40  CancelableTask* cancelable_task_;
41};
42
43TEST(TaskTest, TestCancelInDestructor) {
44  // Intentionally not using a scoped_refptr for cancel_in_destructor.
45  CancelInDestructor* cancel_in_destructor = new CancelInDestructor();
46  cancel_in_destructor->Start();
47  CancelableTask* cancelable_task = cancel_in_destructor->cancelable_task();
48  ASSERT_TRUE(cancelable_task);
49  delete cancelable_task;
50}
51
52}  // namespace
53