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| 1 // Copyright 2013 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/android/activity_status.h" | |
| 6 #include "base/bind.h" | |
| 7 #include "base/callback_forward.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "base/memory/scoped_ptr.h" | |
| 10 #include "base/message_loop/message_loop_proxy.h" | |
| 11 #include "base/run_loop.h" | |
| 12 #include "base/synchronization/waitable_event.h" | |
| 13 #include "base/threading/thread.h" | |
| 14 #include "testing/gtest/include/gtest/gtest.h" | |
| 15 | |
| 16 namespace base { | |
| 17 namespace android { | |
| 18 | |
| 19 namespace { | |
| 20 | |
| 21 using base::android::ScopedJavaLocalRef; | |
| 22 | |
| 23 // An invalid ActivityState value. | |
| 24 const ActivityState kInvalidActivityState = static_cast<ActivityState>(100); | |
| 25 | |
| 26 // Used to generate a callback that stores the new state at a given location. | |
| 27 void StoreStateTo(ActivityState* target, ActivityState state) { | |
| 28 *target = state; | |
| 29 } | |
| 30 | |
| 31 void RunTasksUntilIdle() { | |
| 32 RunLoop run_loop; | |
| 33 run_loop.RunUntilIdle(); | |
| 34 } | |
| 35 | |
| 36 // Shared state for the multi-threaded test. | |
| 37 // This uses a thread to register for events and listen to them, while state | |
| 38 // changes are forced on the main thread. | |
| 39 class MultiThreadedTest { | |
| 40 public: | |
| 41 MultiThreadedTest() | |
| 42 : activity_status_(ActivityStatus::GetInstance()), | |
| 43 state_(kInvalidActivityState), | |
| 44 event_(false, false), | |
| 45 thread_("ActivityStatusTest thread"), | |
| 46 main_() { | |
| 47 } | |
| 48 | |
| 49 void Run() { | |
| 50 // Start the thread and tell it to register for events. | |
| 51 thread_.Start(); | |
| 52 thread_.message_loop() | |
| 53 ->PostTask(FROM_HERE, | |
| 54 base::Bind(&MultiThreadedTest::RegisterThreadForEvents, | |
| 55 base::Unretained(this))); | |
| 56 | |
| 57 // Wait for its completion. | |
| 58 event_.Wait(); | |
| 59 | |
| 60 // Change state, then wait for the thread to modify state. | |
| 61 activity_status_->OnActivityStateChange(ACTIVITY_STATE_CREATED); | |
| 62 event_.Wait(); | |
| 63 EXPECT_EQ(ACTIVITY_STATE_CREATED, state_); | |
| 64 | |
| 65 // Again | |
| 66 activity_status_->OnActivityStateChange(ACTIVITY_STATE_DESTROYED); | |
| 67 event_.Wait(); | |
| 68 EXPECT_EQ(ACTIVITY_STATE_DESTROYED, state_); | |
| 69 } | |
| 70 | |
| 71 private: | |
| 72 void ExpectOnThread() { | |
| 73 EXPECT_EQ(thread_.message_loop(), base::MessageLoop::current()); | |
| 74 } | |
| 75 | |
| 76 void RegisterThreadForEvents() { | |
| 77 ExpectOnThread(); | |
| 78 listener_.reset(new ActivityStatus::Listener(base::Bind( | |
| 79 &MultiThreadedTest::StoreStateAndSignal, base::Unretained(this)))); | |
| 80 EXPECT_TRUE(listener_.get()); | |
| 81 event_.Signal(); | |
| 82 } | |
| 83 | |
| 84 void StoreStateAndSignal(ActivityState state) { | |
| 85 ExpectOnThread(); | |
| 86 state_ = state; | |
| 87 event_.Signal(); | |
| 88 } | |
| 89 | |
| 90 ActivityStatus* const activity_status_; | |
| 91 ActivityState state_; | |
| 92 base::WaitableEvent event_; | |
| 93 base::Thread thread_; | |
| 94 base::MessageLoop main_; | |
| 95 scoped_ptr<ActivityStatus::Listener> listener_; | |
| 96 }; | |
| 97 | |
| 98 } // namespace | |
| 99 | |
| 100 TEST(ActivityStatusTest, SingleThread) { | |
| 101 MessageLoop message_loop; | |
| 102 | |
| 103 ActivityState result = kInvalidActivityState; | |
| 104 | |
| 105 // Create a new listener that stores the new state into |result| on every | |
| 106 // state change. | |
| 107 ActivityStatus::Listener listener( | |
| 108 base::Bind(&StoreStateTo, base::Unretained(&result))); | |
| 109 | |
| 110 EXPECT_EQ(kInvalidActivityState, result); | |
| 111 | |
| 112 ActivityStatus* const activity_status = ActivityStatus::GetInstance(); | |
| 113 activity_status->OnActivityStateChange(ACTIVITY_STATE_CREATED); | |
| 114 RunTasksUntilIdle(); | |
| 115 EXPECT_EQ(ACTIVITY_STATE_CREATED, result); | |
| 116 | |
| 117 activity_status->OnActivityStateChange(ACTIVITY_STATE_DESTROYED); | |
| 118 RunTasksUntilIdle(); | |
| 119 EXPECT_EQ(ACTIVITY_STATE_DESTROYED, result); | |
| 120 } | |
| 121 | |
| 122 TEST(ActivityStatusTest, TwoThreads) { | |
| 123 MultiThreadedTest test; | |
| 124 test.Run(); | |
| 125 } | |
| 126 | |
| 127 } // namespace android | |
| 128 } // namespace base | |
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Chromium Code Reviews
Issue 159173002:
Refactor ActivityStatus to not store current activity (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src