Add unittesting for the bufferQueueConsumer::acquireBuffer (bfdd1132) · Commits · e / os / android_frameworks_native

libs/gui/include/gui/BufferQueueCore.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -51,11 +51,17 @@ namespace android {

		class IConsumerListener;
		class IProducerListener;
		#ifdef ENABLE_BQC_TESTING
		class MockBufferQueueCore;
		#endif

		class BufferQueueCore : public virtual RefBase {

		friend class BufferQueueProducer;
		friend class BufferQueueConsumer;
		#ifdef ENABLE_BQC_TESTING
		friend class TestableBufferQueueCore;
		#endif

		public:
		// Used as a placeholder slot number when the value isn't pointing to an

libs/gui/tests/Android.bp

+3 −0

Original line number	Diff line number	Diff line
		@@ -51,12 +51,15 @@ cc_test {
		"-Werror",
		"-Wextra",
		"-Wthread-safety",
		// Allow access to buffer queue core private members
		"-DENABLE_BQC_TESTING",
		],

		srcs: [
		"BLASTBufferQueue_test.cpp",
		"BufferItemConsumer_test.cpp",
		"BufferQueue_test.cpp",
		"BufferQueueConsumer_test.cpp",
		"BufferReleaseChannel_test.cpp",
		"Choreographer_test.cpp",
		"CompositorTiming_test.cpp",

libs/gui/tests/BufferQueueConsumer_test.cpp

0 → 100644

+161 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2025 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.
		*/

		#ifndef ENABLE_BQC_TESTING
		#define ENABLE_BQC_TESTING
		#endif

		#define LOG_TAG "BufferQueueConsumer_test"

		#include <gui/BufferItem.h>
		#include <gui/BufferQueueConsumer.h>
		#include <gui/BufferQueueCore.h>
		#include <gui/BufferQueueProducer.h>
		#include <gui/IConsumerListener.h>
		#include <ui/GraphicTypes.h>
		#include <ui/Rect.h>
		#include <utils/Timers.h>

		#include <mutex>
		#include <vector>

		#include <gtest/gtest.h>

		namespace android {

		class TestableBufferQueueCore : public BufferQueueCore {
		public:
		TestableBufferQueueCore() = default;
		~TestableBufferQueueCore() override = default;

		void ConfigureQueueStateViaFriend(const std::vector<android::BufferItem>& initialQueue) {
		this->mQueue.clear();
		for (const auto& item : initialQueue) {
		this->mQueue.push_back(item);
		}
		}

		size_t getQueueSizeForTest() { return this->mQueue.size(); }

		android::BufferItem getQueueFrontForTest() {
		return this->mQueue.empty() ? android::BufferItem() : this->mQueue.itemAt(0);
		}
		};

		class BufferQueueConsumerVkTimingTest : public ::testing::Test {
		protected:
		sp<TestableBufferQueueCore> mTestableCore;
		sp<BufferQueueConsumer> mConsumer;

		virtual void SetUp() override {
		mTestableCore = sp<TestableBufferQueueCore>::make();
		mConsumer = sp<BufferQueueConsumer>::make(mTestableCore);
		}

		virtual void TearDown() override {
		mConsumer.clear();
		mTestableCore.clear();
		}

		android::BufferItem CreateBufferItem(int slot, uint64_t frameNum, nsecs_t timestamp,
		bool isReady = true, bool isAutoTimestamp = true,
		bool isStale = false, bool isDroppable = true) {
		android::BufferItem item;
		item.mSlot = slot;
		item.mFrameNumber = frameNum;
		item.mTimestamp = timestamp;
		item.mGraphicBuffer = nullptr;
		item.mFence = isReady ? Fence::NO_FENCE : new Fence();
		item.mIsStale = isStale;
		item.mIsDroppable = isDroppable;
		item.mAcquireCalled = false;
		item.mIsAutoTimestamp = isAutoTimestamp;
		item.mCrop = Rect::INVALID_RECT;
		item.mTransform = 0;
		// item.mScalingMode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
		item.mDataSpace = HAL_DATASPACE_UNKNOWN;
		item.mSurfaceDamage = Region::INVALID_REGION;
		item.mQueuedBuffer = true;
		item.mAutoRefresh = false;
		item.mApi = 0;
		item.mTransformToDisplayInverse = false;
		return item;
		}

		void runBufferTest(nsecs_t expectedPresentTime, int expectedAcquiredSlotNum,
		size_t expectedAcquiredFrameNum, size_t expectedNumberOfDroppedBuffers,
		uint64_t maxFrameNumber = 99) {
		std::vector<BufferItem> queue = {CreateBufferItem(0, 0, 10000, true /isReady/,
		false /isAutoGeneratedTimestamp/),
		CreateBufferItem(1, 1, 20000, true, false),
		CreateBufferItem(2, 2, 30000, true, true),
		CreateBufferItem(3, 3, 40000, true, true),
		CreateBufferItem(4, 4, 50000, true, false),
		CreateBufferItem(5, 5, 60000, true, false),
		CreateBufferItem(6, 6, 70000, true, true),
		CreateBufferItem(7, 7, 80000, false, true),
		CreateBufferItem(8, 8, 90000, false, true)};
		mTestableCore->ConfigureQueueStateViaFriend(queue);

		BufferItem acquiredBuffer;
		status_t result =
		mConsumer->acquireBuffer(&acquiredBuffer, expectedPresentTime, maxFrameNumber);

		EXPECT_EQ(result, android::OK);
		EXPECT_EQ(acquiredBuffer.mSlot, expectedAcquiredSlotNum);
		EXPECT_EQ(acquiredBuffer.mFrameNumber, expectedAcquiredFrameNum);

		EXPECT_EQ(mTestableCore->getQueueSizeForTest(), (size_t)9 - expectedNumberOfDroppedBuffers);
		if (mTestableCore->getQueueSizeForTest() > 0) {
		android::BufferItem frontItem = mTestableCore->getQueueFrontForTest();
		EXPECT_EQ(frontItem.mSlot, expectedAcquiredSlotNum + 1);
		}
		}
		};

		TEST_F(BufferQueueConsumerVkTimingTest, FifoLatestReadyTestZeroExpectPresent) {
		// Verify that we dequeue and acquire only the first frame when expected present is 0
		nsecs_t expectedPresentTime = 0;
		int expectedAcquiredSlotNum = 0;
		size_t expectedAcquiredFrameNum = 0;
		size_t expectedNumberOfDroppedBuffers = 1;
		runBufferTest(expectedPresentTime, expectedAcquiredSlotNum, expectedAcquiredFrameNum,
		expectedNumberOfDroppedBuffers);
		}

		TEST_F(BufferQueueConsumerVkTimingTest, FifoLatestReadyTestBasicTimestamp) {
		// Verify that we dequeue the first frame (with timestamp 1000) and acquire the second frame
		// based on it's timestamp of 2000
		nsecs_t expectedPresentTime = 21000;
		int expectedAcquiredSlotNum = 1;
		size_t expectedAcquiredFrameNum = 1;
		size_t expectedNumberOfDroppedBuffers = 2;
		runBufferTest(expectedPresentTime, expectedAcquiredSlotNum, expectedAcquiredFrameNum,
		expectedNumberOfDroppedBuffers);
		}

		TEST_F(BufferQueueConsumerVkTimingTest, FifoLatestReadyTestBasicLaterTimestamp) {
		// Verify that we dequeue up until the 3rd frame with timestamp of 3000. We don't dequeue the
		// next frame even though it's timestamp is in the past because
		nsecs_t expectedPresentTime = 41000;
		int expectedAcquiredSlotNum = 2;
		size_t expectedAcquiredFrameNum = 2;
		size_t expectedNumberOfDroppedBuffers = 3;
		runBufferTest(expectedPresentTime, expectedAcquiredSlotNum, expectedAcquiredFrameNum,
		expectedNumberOfDroppedBuffers);
		}

		} // namespace android