services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp - third_party/android/platform/frameworks/native - Git at Google

 /*
  * Copyright 2019 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */


 #undef LOG_TAG
 #define LOG_TAG "CompositionTest"

 #include <compositionengine/Display.h>
 #include <compositionengine/mock/DisplaySurface.h>
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 #include <gui/SurfaceComposerClient.h>
 #include <log/log.h>
 #include <utils/String8.h>

 #include "TestableScheduler.h"
 #include "TestableSurfaceFlinger.h"
 #include "mock/MockEventThread.h"
 #include "mock/MockMessageQueue.h"
 #include "mock/MockVsyncController.h"

 namespace android {

 using testing::_;
 using testing::Return;

 using FakeHwcDisplayInjector = TestableSurfaceFlinger::FakeHwcDisplayInjector;

 class TransactionApplicationTest : public testing::Test {
 public:
     TransactionApplicationTest() {
         const ::testing::TestInfo* const test_info =
                 ::testing::UnitTest::GetInstance()->current_test_info();
         ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());

         mFlinger.mutableEventQueue().reset(mMessageQueue);
         setupScheduler();
     }

     ~TransactionApplicationTest() {
         const ::testing::TestInfo* const test_info =
                 ::testing::UnitTest::GetInstance()->current_test_info();
         ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
     }

     void setupScheduler() {
         auto eventThread = std::make_unique<mock::EventThread>();
         auto sfEventThread = std::make_unique<mock::EventThread>();

         EXPECT_CALL(*eventThread, registerDisplayEventConnection(_));
         EXPECT_CALL(*eventThread, createEventConnection(_, _))
                 .WillOnce(Return(new EventThreadConnection(eventThread.get(), /*callingUid=*/0,
                                                            ResyncCallback())));

         EXPECT_CALL(*sfEventThread, registerDisplayEventConnection(_));
         EXPECT_CALL(*sfEventThread, createEventConnection(_, _))
                 .WillOnce(Return(new EventThreadConnection(sfEventThread.get(), /*callingUid=*/0,
                                                            ResyncCallback())));

         EXPECT_CALL(*mVSyncTracker, nextAnticipatedVSyncTimeFrom(_)).WillRepeatedly(Return(0));
         EXPECT_CALL(*mVSyncTracker, currentPeriod())
                 .WillRepeatedly(Return(FakeHwcDisplayInjector::DEFAULT_VSYNC_PERIOD));

         mFlinger.setupScheduler(std::unique_ptr<mock::VsyncController>(mVsyncController),
                                 std::unique_ptr<mock::VSyncTracker>(mVSyncTracker),
                                 std::move(eventThread), std::move(sfEventThread));
     }

     TestableScheduler* mScheduler;
     TestableSurfaceFlinger mFlinger;

     std::unique_ptr<mock::EventThread> mEventThread = std::make_unique<mock::EventThread>();

     mock::MessageQueue* mMessageQueue = new mock::MessageQueue();
     mock::VsyncController* mVsyncController = new mock::VsyncController();
     mock::VSyncTracker* mVSyncTracker = new mock::VSyncTracker();

     struct TransactionInfo {
         Vector<ComposerState> states;
         Vector<DisplayState> displays;
         uint32_t flags = 0;
         sp<IBinder> applyToken = IInterface::asBinder(TransactionCompletedListener::getIInstance());
         InputWindowCommands inputWindowCommands;
         int64_t desiredPresentTime = 0;
         bool isAutoTimestamp = true;
         FrameTimelineInfo frameTimelineInfo;
         client_cache_t uncacheBuffer;
         uint64_t id = static_cast<uint64_t>(-1);
         static_assert(0xffffffffffffffff == static_cast<uint64_t>(-1));
     };

     void checkEqual(TransactionInfo info, SurfaceFlinger::TransactionState state) {
         EXPECT_EQ(0u, info.states.size());
         EXPECT_EQ(0u, state.states.size());

         EXPECT_EQ(0u, info.displays.size());
         EXPECT_EQ(0u, state.displays.size());
         EXPECT_EQ(info.flags, state.flags);
         EXPECT_EQ(info.desiredPresentTime, state.desiredPresentTime);
     }

     void setupSingle(TransactionInfo& transaction, uint32_t flags, bool syncInputWindows,
                      int64_t desiredPresentTime, bool isAutoTimestamp,
                      const FrameTimelineInfo& frameTimelineInfo) {
         mTransactionNumber++;
         transaction.flags |= flags; // ISurfaceComposer::eSynchronous;
         transaction.inputWindowCommands.syncInputWindows = syncInputWindows;
         transaction.desiredPresentTime = desiredPresentTime;
         transaction.isAutoTimestamp = isAutoTimestamp;
         transaction.frameTimelineInfo = frameTimelineInfo;
     }

     void NotPlacedOnTransactionQueue(uint32_t flags, bool syncInputWindows) {
         ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
         // called in SurfaceFlinger::signalTransaction
         EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
         TransactionInfo transaction;
         setupSingle(transaction, flags, syncInputWindows,
                     /*desiredPresentTime*/ systemTime(), /*isAutoTimestamp*/ true,
                     FrameTimelineInfo{});
         nsecs_t applicationTime = systemTime();
         mFlinger.setTransactionState(transaction.frameTimelineInfo, transaction.states,
                                      transaction.displays, transaction.flags,
                                      transaction.applyToken, transaction.inputWindowCommands,
                                      transaction.desiredPresentTime, transaction.isAutoTimestamp,
                                      transaction.uncacheBuffer, mHasListenerCallbacks, mCallbacks,
                                      transaction.id);

         // If transaction is synchronous or syncs input windows, SF
         // applyTransactionState should time out (5s) wating for SF to commit
         // the transaction or to receive a signal that syncInputWindows has
         // completed.  If this is animation, it should not time out waiting.
         nsecs_t returnedTime = systemTime();
         if (flags & ISurfaceComposer::eSynchronous || syncInputWindows) {
             EXPECT_GE(returnedTime, applicationTime + s2ns(5));
         } else {
             EXPECT_LE(returnedTime, applicationTime + s2ns(5));
         }
         // Each transaction should have been placed on the transaction queue
         auto transactionQueue = mFlinger.getTransactionQueue();
         EXPECT_EQ(1u, transactionQueue.size());
     }

     void PlaceOnTransactionQueue(uint32_t flags, bool syncInputWindows) {
         ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
         // called in SurfaceFlinger::signalTransaction
         EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);

         // first check will see desired present time has not passed,
         // but afterwards it will look like the desired present time has passed
         nsecs_t time = systemTime();
         TransactionInfo transaction;
         setupSingle(transaction, flags, syncInputWindows,
                     /*desiredPresentTime*/ time + s2ns(1), false, FrameTimelineInfo{});
         nsecs_t applicationSentTime = systemTime();
         mFlinger.setTransactionState(transaction.frameTimelineInfo, transaction.states,
                                      transaction.displays, transaction.flags,
                                      transaction.applyToken, transaction.inputWindowCommands,
                                      transaction.desiredPresentTime, transaction.isAutoTimestamp,
                                      transaction.uncacheBuffer, mHasListenerCallbacks, mCallbacks,
                                      transaction.id);

         nsecs_t returnedTime = systemTime();
         if ((flags & ISurfaceComposer::eSynchronous) || syncInputWindows) {
             EXPECT_GE(systemTime(), applicationSentTime + s2ns(5));
         } else {
             EXPECT_LE(returnedTime, applicationSentTime + s2ns(5));
         }
         // This transaction should have been placed on the transaction queue
         auto transactionQueue = mFlinger.getTransactionQueue();
         EXPECT_EQ(1u, transactionQueue.size());
     }

     void BlockedByPriorTransaction(uint32_t flags, bool syncInputWindows) {
         ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
         // called in SurfaceFlinger::signalTransaction
         nsecs_t time = systemTime();
         if (!syncInputWindows) {
             EXPECT_CALL(*mMessageQueue, invalidate()).Times(2);
         } else {
             EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
         }
         // transaction that should go on the pending thread
         TransactionInfo transactionA;
         setupSingle(transactionA, /*flags*/ 0, /*syncInputWindows*/ false,
                     /*desiredPresentTime*/ time + s2ns(1), false, FrameTimelineInfo{});

         // transaction that would not have gone on the pending thread if not
         // blocked
         TransactionInfo transactionB;
         setupSingle(transactionB, flags, syncInputWindows,
                     /*desiredPresentTime*/ systemTime(), /*isAutoTimestamp*/ true,
                     FrameTimelineInfo{});

         nsecs_t applicationSentTime = systemTime();
         mFlinger.setTransactionState(transactionA.frameTimelineInfo, transactionA.states,
                                      transactionA.displays, transactionA.flags,
                                      transactionA.applyToken, transactionA.inputWindowCommands,
                                      transactionA.desiredPresentTime, transactionA.isAutoTimestamp,
                                      transactionA.uncacheBuffer, mHasListenerCallbacks, mCallbacks,
                                      transactionA.id);

         // This thread should not have been blocked by the above transaction
         // (5s is the timeout period that applyTransactionState waits for SF to
         // commit the transaction)
         EXPECT_LE(systemTime(), applicationSentTime + s2ns(5));
         // transaction that would goes to pending transaciton queue.
         mFlinger.flushTransactionQueues();

         applicationSentTime = systemTime();
         mFlinger.setTransactionState(transactionB.frameTimelineInfo, transactionB.states,
                                      transactionB.displays, transactionB.flags,
                                      transactionB.applyToken, transactionB.inputWindowCommands,
                                      transactionB.desiredPresentTime, transactionB.isAutoTimestamp,
                                      transactionB.uncacheBuffer, mHasListenerCallbacks, mCallbacks,
                                      transactionB.id);

         // this thread should have been blocked by the above transaction
         // if this is an animation, this thread should be blocked for 5s
         // in setTransactionState waiting for transactionA to flush.  Otherwise,
         // the transaction should be placed on the pending queue
         if (flags & (ISurfaceComposer::eAnimation | ISurfaceComposer::eSynchronous) ||
             syncInputWindows) {
             EXPECT_GE(systemTime(), applicationSentTime + s2ns(5));
         } else {
             EXPECT_LE(systemTime(), applicationSentTime + s2ns(5));
         }

         // transaction that would goes to pending transaciton queue.
         mFlinger.flushTransactionQueues();

         // check that the transaction was applied.
         auto transactionQueue = mFlinger.getPendingTransactionQueue();
         EXPECT_EQ(0u, transactionQueue.size());
     }

     bool mHasListenerCallbacks = false;
     std::vector<ListenerCallbacks> mCallbacks;
     int mTransactionNumber = 0;
 };

 TEST_F(TransactionApplicationTest, Flush_RemovesFromQueue) {
     ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
     // called in SurfaceFlinger::signalTransaction
     EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);

     TransactionInfo transactionA; // transaction to go on pending queue
     setupSingle(transactionA, /*flags*/ 0, /*syncInputWindows*/ false,
                 /*desiredPresentTime*/ s2ns(1), false, FrameTimelineInfo{});
     mFlinger.setTransactionState(transactionA.frameTimelineInfo, transactionA.states,
                                  transactionA.displays, transactionA.flags, transactionA.applyToken,
                                  transactionA.inputWindowCommands, transactionA.desiredPresentTime,
                                  transactionA.isAutoTimestamp, transactionA.uncacheBuffer,
                                  mHasListenerCallbacks, mCallbacks, transactionA.id);

     auto& transactionQueue = mFlinger.getTransactionQueue();
     ASSERT_EQ(1u, transactionQueue.size());

     auto& transactionState = transactionQueue.front();
     checkEqual(transactionA, transactionState);

     // because flushing uses the cached expected present time, we send an empty
     // transaction here (sending a null applyToken to fake it as from a
     // different process) to re-query and reset the cached expected present time
     TransactionInfo empty;
     empty.applyToken = sp<IBinder>();
     mFlinger.setTransactionState(empty.frameTimelineInfo, empty.states, empty.displays, empty.flags,
                                  empty.applyToken, empty.inputWindowCommands,
                                  empty.desiredPresentTime, empty.isAutoTimestamp,
                                  empty.uncacheBuffer, mHasListenerCallbacks, mCallbacks, empty.id);

     // flush transaction queue should flush as desiredPresentTime has
     // passed
     mFlinger.flushTransactionQueues();

     EXPECT_EQ(0u, transactionQueue.size());
 }

 TEST_F(TransactionApplicationTest, NotPlacedOnTransactionQueue_Synchronous) {
     NotPlacedOnTransactionQueue(ISurfaceComposer::eSynchronous, /*syncInputWindows*/ false);
 }

 TEST_F(TransactionApplicationTest, NotPlacedOnTransactionQueue_Animation) {
     NotPlacedOnTransactionQueue(ISurfaceComposer::eAnimation, /*syncInputWindows*/ false);
 }

 TEST_F(TransactionApplicationTest, NotPlacedOnTransactionQueue_SyncInputWindows) {
     NotPlacedOnTransactionQueue(/*flags*/ 0, /*syncInputWindows*/ true);
 }

 TEST_F(TransactionApplicationTest, PlaceOnTransactionQueue_Synchronous) {
     PlaceOnTransactionQueue(ISurfaceComposer::eSynchronous, /*syncInputWindows*/ false);
 }

 TEST_F(TransactionApplicationTest, PlaceOnTransactionQueue_Animation) {
     PlaceOnTransactionQueue(ISurfaceComposer::eAnimation, /*syncInputWindows*/ false);
 }

 TEST_F(TransactionApplicationTest, PlaceOnTransactionQueue_SyncInputWindows) {
     PlaceOnTransactionQueue(/*flags*/ 0, /*syncInputWindows*/ true);
 }

 TEST_F(TransactionApplicationTest, BlockWithPriorTransaction_Synchronous) {
     BlockedByPriorTransaction(ISurfaceComposer::eSynchronous, /*syncInputWindows*/ false);
 }

 TEST_F(TransactionApplicationTest, BlockWithPriorTransaction_Animation) {
     BlockedByPriorTransaction(ISurfaceComposer::eSynchronous, /*syncInputWindows*/ false);
 }

 TEST_F(TransactionApplicationTest, BlockWithPriorTransaction_SyncInputWindows) {
     BlockedByPriorTransaction(/*flags*/ 0, /*syncInputWindows*/ true);
 }

 TEST_F(TransactionApplicationTest, FromHandle) {
     sp<IBinder> badHandle;
     auto ret = mFlinger.fromHandle(badHandle);
     EXPECT_EQ(nullptr, ret.promote().get());
 }
 } // namespace android
	/*
	* Copyright 2019 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/


	#undef LOG_TAG
	#define LOG_TAG "CompositionTest"

	#include <compositionengine/Display.h>
	#include <compositionengine/mock/DisplaySurface.h>
	#include <gmock/gmock.h>
	#include <gtest/gtest.h>
	#include <gui/SurfaceComposerClient.h>
	#include <log/log.h>
	#include <utils/String8.h>

	#include "TestableScheduler.h"
	#include "TestableSurfaceFlinger.h"
	#include "mock/MockEventThread.h"
	#include "mock/MockMessageQueue.h"
	#include "mock/MockVsyncController.h"

	namespace android {

	using testing::_;
	using testing::Return;

	using FakeHwcDisplayInjector = TestableSurfaceFlinger::FakeHwcDisplayInjector;

	class TransactionApplicationTest : public testing::Test {
	public:
	TransactionApplicationTest() {
	const ::testing::TestInfo* const test_info =
	::testing::UnitTest::GetInstance()->current_test_info();
	ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());

	mFlinger.mutableEventQueue().reset(mMessageQueue);
	setupScheduler();
	}

	~TransactionApplicationTest() {
	const ::testing::TestInfo* const test_info =
	::testing::UnitTest::GetInstance()->current_test_info();
	ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
	}

	void setupScheduler() {
	auto eventThread = std::make_unique<mock::EventThread>();
	auto sfEventThread = std::make_unique<mock::EventThread>();

	EXPECT_CALL(*eventThread, registerDisplayEventConnection(_));
	EXPECT_CALL(*eventThread, createEventConnection(_, _))
	.WillOnce(Return(new EventThreadConnection(eventThread.get(), /callingUid=/0,
	ResyncCallback())));

	EXPECT_CALL(*sfEventThread, registerDisplayEventConnection(_));
	EXPECT_CALL(*sfEventThread, createEventConnection(_, _))
	.WillOnce(Return(new EventThreadConnection(sfEventThread.get(), /callingUid=/0,
	ResyncCallback())));

	EXPECT_CALL(*mVSyncTracker, nextAnticipatedVSyncTimeFrom(_)).WillRepeatedly(Return(0));
	EXPECT_CALL(*mVSyncTracker, currentPeriod())
	.WillRepeatedly(Return(FakeHwcDisplayInjector::DEFAULT_VSYNC_PERIOD));

	mFlinger.setupScheduler(std::unique_ptr<mock::VsyncController>(mVsyncController),
	std::unique_ptr<mock::VSyncTracker>(mVSyncTracker),
	std::move(eventThread), std::move(sfEventThread));
	}

	TestableScheduler* mScheduler;
	TestableSurfaceFlinger mFlinger;

	std::unique_ptr<mock::EventThread> mEventThread = std::make_unique<mock::EventThread>();

	mock::MessageQueue* mMessageQueue = new mock::MessageQueue();
	mock::VsyncController* mVsyncController = new mock::VsyncController();
	mock::VSyncTracker* mVSyncTracker = new mock::VSyncTracker();

	struct TransactionInfo {
	Vector<ComposerState> states;
	Vector<DisplayState> displays;
	uint32_t flags = 0;
	sp<IBinder> applyToken = IInterface::asBinder(TransactionCompletedListener::getIInstance());
	InputWindowCommands inputWindowCommands;
	int64_t desiredPresentTime = 0;
	bool isAutoTimestamp = true;
	FrameTimelineInfo frameTimelineInfo;
	client_cache_t uncacheBuffer;
	uint64_t id = static_cast<uint64_t>(-1);
	static_assert(0xffffffffffffffff == static_cast<uint64_t>(-1));
	};

	void checkEqual(TransactionInfo info, SurfaceFlinger::TransactionState state) {
	EXPECT_EQ(0u, info.states.size());
	EXPECT_EQ(0u, state.states.size());

	EXPECT_EQ(0u, info.displays.size());
	EXPECT_EQ(0u, state.displays.size());
	EXPECT_EQ(info.flags, state.flags);
	EXPECT_EQ(info.desiredPresentTime, state.desiredPresentTime);
	}

	void setupSingle(TransactionInfo& transaction, uint32_t flags, bool syncInputWindows,
	int64_t desiredPresentTime, bool isAutoTimestamp,
	const FrameTimelineInfo& frameTimelineInfo) {
	mTransactionNumber++;
	transaction.flags \|= flags; // ISurfaceComposer::eSynchronous;
	transaction.inputWindowCommands.syncInputWindows = syncInputWindows;
	transaction.desiredPresentTime = desiredPresentTime;
	transaction.isAutoTimestamp = isAutoTimestamp;
	transaction.frameTimelineInfo = frameTimelineInfo;
	}

	void NotPlacedOnTransactionQueue(uint32_t flags, bool syncInputWindows) {
	ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
	// called in SurfaceFlinger::signalTransaction
	EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
	TransactionInfo transaction;
	setupSingle(transaction, flags, syncInputWindows,
	/desiredPresentTime/ systemTime(), /isAutoTimestamp/ true,
	FrameTimelineInfo{});
	nsecs_t applicationTime = systemTime();
	mFlinger.setTransactionState(transaction.frameTimelineInfo, transaction.states,
	transaction.displays, transaction.flags,
	transaction.applyToken, transaction.inputWindowCommands,
	transaction.desiredPresentTime, transaction.isAutoTimestamp,
	transaction.uncacheBuffer, mHasListenerCallbacks, mCallbacks,
	transaction.id);

	// If transaction is synchronous or syncs input windows, SF
	// applyTransactionState should time out (5s) wating for SF to commit
	// the transaction or to receive a signal that syncInputWindows has
	// completed. If this is animation, it should not time out waiting.
	nsecs_t returnedTime = systemTime();
	if (flags & ISurfaceComposer::eSynchronous \|\| syncInputWindows) {
	EXPECT_GE(returnedTime, applicationTime + s2ns(5));
	} else {
	EXPECT_LE(returnedTime, applicationTime + s2ns(5));
	}
	// Each transaction should have been placed on the transaction queue
	auto transactionQueue = mFlinger.getTransactionQueue();
	EXPECT_EQ(1u, transactionQueue.size());
	}

	void PlaceOnTransactionQueue(uint32_t flags, bool syncInputWindows) {
	ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
	// called in SurfaceFlinger::signalTransaction
	EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);

	// first check will see desired present time has not passed,
	// but afterwards it will look like the desired present time has passed
	nsecs_t time = systemTime();
	TransactionInfo transaction;
	setupSingle(transaction, flags, syncInputWindows,
	/desiredPresentTime/ time + s2ns(1), false, FrameTimelineInfo{});
	nsecs_t applicationSentTime = systemTime();
	mFlinger.setTransactionState(transaction.frameTimelineInfo, transaction.states,
	transaction.displays, transaction.flags,
	transaction.applyToken, transaction.inputWindowCommands,
	transaction.desiredPresentTime, transaction.isAutoTimestamp,
	transaction.uncacheBuffer, mHasListenerCallbacks, mCallbacks,
	transaction.id);

	nsecs_t returnedTime = systemTime();
	if ((flags & ISurfaceComposer::eSynchronous) \|\| syncInputWindows) {
	EXPECT_GE(systemTime(), applicationSentTime + s2ns(5));
	} else {
	EXPECT_LE(returnedTime, applicationSentTime + s2ns(5));
	}
	// This transaction should have been placed on the transaction queue
	auto transactionQueue = mFlinger.getTransactionQueue();
	EXPECT_EQ(1u, transactionQueue.size());
	}

	void BlockedByPriorTransaction(uint32_t flags, bool syncInputWindows) {
	ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
	// called in SurfaceFlinger::signalTransaction
	nsecs_t time = systemTime();
	if (!syncInputWindows) {
	EXPECT_CALL(*mMessageQueue, invalidate()).Times(2);
	} else {
	EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
	}
	// transaction that should go on the pending thread
	TransactionInfo transactionA;
	setupSingle(transactionA, /flags/ 0, /syncInputWindows/ false,
	/desiredPresentTime/ time + s2ns(1), false, FrameTimelineInfo{});

	// transaction that would not have gone on the pending thread if not
	// blocked
	TransactionInfo transactionB;
	setupSingle(transactionB, flags, syncInputWindows,
	/desiredPresentTime/ systemTime(), /isAutoTimestamp/ true,
	FrameTimelineInfo{});

	nsecs_t applicationSentTime = systemTime();
	mFlinger.setTransactionState(transactionA.frameTimelineInfo, transactionA.states,
	transactionA.displays, transactionA.flags,
	transactionA.applyToken, transactionA.inputWindowCommands,
	transactionA.desiredPresentTime, transactionA.isAutoTimestamp,
	transactionA.uncacheBuffer, mHasListenerCallbacks, mCallbacks,
	transactionA.id);

	// This thread should not have been blocked by the above transaction
	// (5s is the timeout period that applyTransactionState waits for SF to
	// commit the transaction)
	EXPECT_LE(systemTime(), applicationSentTime + s2ns(5));
	// transaction that would goes to pending transaciton queue.
	mFlinger.flushTransactionQueues();

	applicationSentTime = systemTime();
	mFlinger.setTransactionState(transactionB.frameTimelineInfo, transactionB.states,
	transactionB.displays, transactionB.flags,
	transactionB.applyToken, transactionB.inputWindowCommands,
	transactionB.desiredPresentTime, transactionB.isAutoTimestamp,
	transactionB.uncacheBuffer, mHasListenerCallbacks, mCallbacks,
	transactionB.id);

	// this thread should have been blocked by the above transaction
	// if this is an animation, this thread should be blocked for 5s
	// in setTransactionState waiting for transactionA to flush. Otherwise,
	// the transaction should be placed on the pending queue
	if (flags & (ISurfaceComposer::eAnimation \| ISurfaceComposer::eSynchronous) \|\|
	syncInputWindows) {
	EXPECT_GE(systemTime(), applicationSentTime + s2ns(5));
	} else {
	EXPECT_LE(systemTime(), applicationSentTime + s2ns(5));
	}

	// transaction that would goes to pending transaciton queue.
	mFlinger.flushTransactionQueues();

	// check that the transaction was applied.
	auto transactionQueue = mFlinger.getPendingTransactionQueue();
	EXPECT_EQ(0u, transactionQueue.size());
	}

	bool mHasListenerCallbacks = false;
	std::vector<ListenerCallbacks> mCallbacks;
	int mTransactionNumber = 0;
	};

	TEST_F(TransactionApplicationTest, Flush_RemovesFromQueue) {
	ASSERT_EQ(0u, mFlinger.getTransactionQueue().size());
	// called in SurfaceFlinger::signalTransaction
	EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);

	TransactionInfo transactionA; // transaction to go on pending queue
	setupSingle(transactionA, /flags/ 0, /syncInputWindows/ false,
	/desiredPresentTime/ s2ns(1), false, FrameTimelineInfo{});
	mFlinger.setTransactionState(transactionA.frameTimelineInfo, transactionA.states,
	transactionA.displays, transactionA.flags, transactionA.applyToken,
	transactionA.inputWindowCommands, transactionA.desiredPresentTime,
	transactionA.isAutoTimestamp, transactionA.uncacheBuffer,
	mHasListenerCallbacks, mCallbacks, transactionA.id);

	auto& transactionQueue = mFlinger.getTransactionQueue();
	ASSERT_EQ(1u, transactionQueue.size());

	auto& transactionState = transactionQueue.front();
	checkEqual(transactionA, transactionState);

	// because flushing uses the cached expected present time, we send an empty
	// transaction here (sending a null applyToken to fake it as from a
	// different process) to re-query and reset the cached expected present time
	TransactionInfo empty;
	empty.applyToken = sp<IBinder>();
	mFlinger.setTransactionState(empty.frameTimelineInfo, empty.states, empty.displays, empty.flags,
	empty.applyToken, empty.inputWindowCommands,
	empty.desiredPresentTime, empty.isAutoTimestamp,
	empty.uncacheBuffer, mHasListenerCallbacks, mCallbacks, empty.id);

	// flush transaction queue should flush as desiredPresentTime has
	// passed
	mFlinger.flushTransactionQueues();

	EXPECT_EQ(0u, transactionQueue.size());
	}

	TEST_F(TransactionApplicationTest, NotPlacedOnTransactionQueue_Synchronous) {
	NotPlacedOnTransactionQueue(ISurfaceComposer::eSynchronous, /syncInputWindows/ false);
	}

	TEST_F(TransactionApplicationTest, NotPlacedOnTransactionQueue_Animation) {
	NotPlacedOnTransactionQueue(ISurfaceComposer::eAnimation, /syncInputWindows/ false);
	}

	TEST_F(TransactionApplicationTest, NotPlacedOnTransactionQueue_SyncInputWindows) {
	NotPlacedOnTransactionQueue(/flags/ 0, /syncInputWindows/ true);
	}

	TEST_F(TransactionApplicationTest, PlaceOnTransactionQueue_Synchronous) {
	PlaceOnTransactionQueue(ISurfaceComposer::eSynchronous, /syncInputWindows/ false);
	}

	TEST_F(TransactionApplicationTest, PlaceOnTransactionQueue_Animation) {
	PlaceOnTransactionQueue(ISurfaceComposer::eAnimation, /syncInputWindows/ false);
	}

	TEST_F(TransactionApplicationTest, PlaceOnTransactionQueue_SyncInputWindows) {
	PlaceOnTransactionQueue(/flags/ 0, /syncInputWindows/ true);
	}

	TEST_F(TransactionApplicationTest, BlockWithPriorTransaction_Synchronous) {
	BlockedByPriorTransaction(ISurfaceComposer::eSynchronous, /syncInputWindows/ false);
	}

	TEST_F(TransactionApplicationTest, BlockWithPriorTransaction_Animation) {
	BlockedByPriorTransaction(ISurfaceComposer::eSynchronous, /syncInputWindows/ false);
	}

	TEST_F(TransactionApplicationTest, BlockWithPriorTransaction_SyncInputWindows) {
	BlockedByPriorTransaction(/flags/ 0, /syncInputWindows/ true);
	}

	TEST_F(TransactionApplicationTest, FromHandle) {
	sp<IBinder> badHandle;
	auto ret = mFlinger.fromHandle(badHandle);
	EXPECT_EQ(nullptr, ret.promote().get());
	}
	} // namespace android