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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "net/dns/serial_worker.h" | 5 #include "net/dns/serial_worker.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/message_loop/message_loop.h" | 8 #include "base/message_loop/message_loop.h" |
9 #include "base/synchronization/lock.h" | 9 #include "base/synchronization/lock.h" |
10 #include "base/synchronization/waitable_event.h" | 10 #include "base/synchronization/waitable_event.h" |
11 #include "testing/gtest/include/gtest/gtest.h" | 11 #include "testing/gtest/include/gtest/gtest.h" |
12 | 12 |
13 namespace net { | 13 namespace net { |
14 | 14 |
15 namespace { | 15 namespace { |
16 | 16 |
17 class SerialWorkerTest : public testing::Test { | 17 class SerialWorkerTest : public testing::Test { |
18 public: | 18 public: |
19 // The class under test | 19 // The class under test |
20 class TestSerialWorker : public SerialWorker { | 20 class TestSerialWorker : public SerialWorker { |
21 public: | 21 public: |
22 explicit TestSerialWorker(SerialWorkerTest* t) | 22 explicit TestSerialWorker(SerialWorkerTest* t) : test_(t) {} |
23 : test_(t) {} | |
24 virtual void DoWork() OVERRIDE { | 23 virtual void DoWork() OVERRIDE { |
25 ASSERT_TRUE(test_); | 24 ASSERT_TRUE(test_); |
26 test_->OnWork(); | 25 test_->OnWork(); |
27 } | 26 } |
28 virtual void OnWorkFinished() OVERRIDE { | 27 virtual void OnWorkFinished() OVERRIDE { |
29 ASSERT_TRUE(test_); | 28 ASSERT_TRUE(test_); |
30 test_->OnWorkFinished(); | 29 test_->OnWorkFinished(); |
31 } | 30 } |
| 31 |
32 private: | 32 private: |
33 virtual ~TestSerialWorker() {} | 33 virtual ~TestSerialWorker() {} |
34 SerialWorkerTest* test_; | 34 SerialWorkerTest* test_; |
35 }; | 35 }; |
36 | 36 |
37 // Mocks | 37 // Mocks |
38 | 38 |
39 void OnWork() { | 39 void OnWork() { |
40 { // Check that OnWork is executed serially. | 40 { // Check that OnWork is executed serially. |
41 base::AutoLock lock(work_lock_); | 41 base::AutoLock lock(work_lock_); |
42 EXPECT_FALSE(work_running_) << "DoRead is not called serially!"; | 42 EXPECT_FALSE(work_running_) << "DoRead is not called serially!"; |
43 work_running_ = true; | 43 work_running_ = true; |
44 } | 44 } |
45 BreakNow("OnWork"); | 45 BreakNow("OnWork"); |
46 work_allowed_.Wait(); | 46 work_allowed_.Wait(); |
47 // Calling from WorkerPool, but protected by work_allowed_/work_called_. | 47 // Calling from WorkerPool, but protected by work_allowed_/work_called_. |
48 output_value_ = input_value_; | 48 output_value_ = input_value_; |
49 | 49 |
50 { // This lock might be destroyed after work_called_ is signalled. | 50 { // This lock might be destroyed after work_called_ is signalled. |
51 base::AutoLock lock(work_lock_); | 51 base::AutoLock lock(work_lock_); |
52 work_running_ = false; | 52 work_running_ = false; |
53 } | 53 } |
54 work_called_.Signal(); | 54 work_called_.Signal(); |
55 } | 55 } |
56 | 56 |
57 void OnWorkFinished() { | 57 void OnWorkFinished() { |
58 EXPECT_TRUE(message_loop_ == base::MessageLoop::current()); | 58 EXPECT_TRUE(message_loop_ == base::MessageLoop::current()); |
59 EXPECT_EQ(output_value_, input_value_); | 59 EXPECT_EQ(output_value_, input_value_); |
60 BreakNow("OnWorkFinished"); | 60 BreakNow("OnWorkFinished"); |
61 } | 61 } |
62 | 62 |
63 protected: | 63 protected: |
64 void BreakCallback(std::string breakpoint) { | 64 void BreakCallback(std::string breakpoint) { |
65 breakpoint_ = breakpoint; | 65 breakpoint_ = breakpoint; |
66 base::MessageLoop::current()->QuitNow(); | 66 base::MessageLoop::current()->QuitNow(); |
67 } | 67 } |
68 | 68 |
69 void BreakNow(std::string b) { | 69 void BreakNow(std::string b) { |
70 message_loop_->PostTask(FROM_HERE, | 70 message_loop_->PostTask( |
71 base::Bind(&SerialWorkerTest::BreakCallback, | 71 FROM_HERE, |
72 base::Unretained(this), b)); | 72 base::Bind( |
| 73 &SerialWorkerTest::BreakCallback, base::Unretained(this), b)); |
73 } | 74 } |
74 | 75 |
75 void RunUntilBreak(std::string b) { | 76 void RunUntilBreak(std::string b) { |
76 message_loop_->Run(); | 77 message_loop_->Run(); |
77 ASSERT_EQ(breakpoint_, b); | 78 ASSERT_EQ(breakpoint_, b); |
78 } | 79 } |
79 | 80 |
80 SerialWorkerTest() | 81 SerialWorkerTest() |
81 : input_value_(0), | 82 : input_value_(0), |
82 output_value_(-1), | 83 output_value_(-1), |
83 work_allowed_(false, false), | 84 work_allowed_(false, false), |
84 work_called_(false, false), | 85 work_called_(false, false), |
85 work_running_(false) { | 86 work_running_(false) {} |
86 } | |
87 | 87 |
88 // Helpers for tests. | 88 // Helpers for tests. |
89 | 89 |
90 // Lets OnWork run and waits for it to complete. Can only return if OnWork is | 90 // Lets OnWork run and waits for it to complete. Can only return if OnWork is |
91 // executed on a concurrent thread. | 91 // executed on a concurrent thread. |
92 void WaitForWork() { | 92 void WaitForWork() { |
93 RunUntilBreak("OnWork"); | 93 RunUntilBreak("OnWork"); |
94 work_allowed_.Signal(); | 94 work_allowed_.Signal(); |
95 work_called_.Wait(); | 95 work_called_.Wait(); |
96 } | 96 } |
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153 WaitForWork(); | 153 WaitForWork(); |
154 RunUntilBreak("OnWorkFinished"); | 154 RunUntilBreak("OnWorkFinished"); |
155 | 155 |
156 // No more tasks should remain. | 156 // No more tasks should remain. |
157 EXPECT_TRUE(message_loop_->IsIdleForTesting()); | 157 EXPECT_TRUE(message_loop_->IsIdleForTesting()); |
158 } | 158 } |
159 | 159 |
160 } // namespace | 160 } // namespace |
161 | 161 |
162 } // namespace net | 162 } // namespace net |
163 | |
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