services/surfaceflinger/tests/unittests/HWComposerTest.cpp - LeafOS-Project/android_frameworks_native - Gitiles

 /*
  * Copyright 2020 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.
  */

 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wconversion"

 #undef LOG_TAG
 #define LOG_TAG "LibSurfaceFlingerUnittests"

 #include <vector>

 // StrictMock<T> derives from T and is not marked final, so the destructor of T is expected to be
 // virtual in case StrictMock<T> is used as a polymorphic base class. That is not the case here.
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wnon-virtual-dtor"
 #include <gmock/gmock.h>
 #pragma clang diagnostic pop

 #include <gui/LayerMetadata.h>
 #include <log/log.h>

 #include "DisplayHardware/DisplayMode.h"
 #include "DisplayHardware/HWComposer.h"
 #include "DisplayHardware/Hal.h"
 #include "DisplayIdentificationTestHelpers.h"
 #include "mock/DisplayHardware/MockComposer.h"
 #include "mock/DisplayHardware/MockHWC2.h"

 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic pop // ignored "-Wconversion"

 namespace android {
 namespace {

 namespace V2_1 = hardware::graphics::composer::V2_1;
 namespace V2_4 = hardware::graphics::composer::V2_4;
 namespace aidl = aidl::android::hardware::graphics::composer3;

 using Hwc2::Config;

 using ::aidl::android::hardware::graphics::composer3::RefreshRateChangedDebugData;
 using ::testing::_;
 using ::testing::DoAll;
 using ::testing::ElementsAreArray;
 using ::testing::Return;
 using ::testing::SetArgPointee;
 using ::testing::StrictMock;

 struct HWComposerTest : testing::Test {
     using HalError = hardware::graphics::composer::V2_1::Error;

     Hwc2::mock::Composer* const mHal = new StrictMock<Hwc2::mock::Composer>();
     impl::HWComposer mHwc{std::unique_ptr<Hwc2::Composer>(mHal)};

     void expectHotplugConnect(hal::HWDisplayId hwcDisplayId) {
         constexpr uint8_t kPort = 255;
         EXPECT_CALL(*mHal, getDisplayIdentificationData(hwcDisplayId, _, _))
                 .WillOnce(DoAll(SetArgPointee<1>(kPort),
                                 SetArgPointee<2>(getExternalEdid()), Return(HalError::NONE)));

         EXPECT_CALL(*mHal, setClientTargetSlotCount(_));
         EXPECT_CALL(*mHal, setVsyncEnabled(hwcDisplayId, Hwc2::IComposerClient::Vsync::DISABLE));
         EXPECT_CALL(*mHal, onHotplugConnect(hwcDisplayId));
     }
 };

 TEST_F(HWComposerTest, isHeadless) {
     ASSERT_TRUE(mHwc.isHeadless());

     constexpr hal::HWDisplayId kHwcDisplayId = 1;
     expectHotplugConnect(kHwcDisplayId);

     const auto info = mHwc.onHotplug(kHwcDisplayId, hal::Connection::CONNECTED);
     ASSERT_TRUE(info);

     ASSERT_FALSE(mHwc.isHeadless());

     mHwc.disconnectDisplay(info->id);
     ASSERT_TRUE(mHwc.isHeadless());
 }

 TEST_F(HWComposerTest, getActiveMode) {
     // Unknown display.
     EXPECT_EQ(mHwc.getActiveMode(PhysicalDisplayId::fromPort(0)), std::nullopt);

     constexpr hal::HWDisplayId kHwcDisplayId = 2;
     expectHotplugConnect(kHwcDisplayId);

     const auto info = mHwc.onHotplug(kHwcDisplayId, hal::Connection::CONNECTED);
     ASSERT_TRUE(info);

     {
         // Display is known to SF but not HWC, e.g. the hotplug disconnect is pending.
         EXPECT_CALL(*mHal, getActiveConfig(kHwcDisplayId, _))
                 .WillOnce(Return(HalError::BAD_DISPLAY));

         EXPECT_EQ(mHwc.getActiveMode(info->id), std::nullopt);
     }
     {
         constexpr hal::HWConfigId kConfigId = 42;
         EXPECT_CALL(*mHal, getActiveConfig(kHwcDisplayId, _))
                 .WillOnce(DoAll(SetArgPointee<1>(kConfigId), Return(HalError::NONE)));

         EXPECT_EQ(mHwc.getActiveMode(info->id), kConfigId);
     }
 }

 TEST_F(HWComposerTest, onVsync) {
     constexpr hal::HWDisplayId kHwcDisplayId = 1;
     expectHotplugConnect(kHwcDisplayId);

     const auto info = mHwc.onHotplug(kHwcDisplayId, hal::Connection::CONNECTED);
     ASSERT_TRUE(info);

     const auto physicalDisplayId = info->id;

     // Deliberately chosen not to match DisplayData.lastPresentTimestamp's
     // initial value.
     constexpr nsecs_t kTimestamp = 1;
     auto displayIdOpt = mHwc.onVsync(kHwcDisplayId, kTimestamp);
     ASSERT_TRUE(displayIdOpt);
     EXPECT_EQ(physicalDisplayId, displayIdOpt);

     // Attempt to send the same time stamp again.
     displayIdOpt = mHwc.onVsync(kHwcDisplayId, kTimestamp);
     EXPECT_FALSE(displayIdOpt);
 }

 TEST_F(HWComposerTest, onVsyncInvalid) {
     constexpr hal::HWDisplayId kInvalidHwcDisplayId = 2;
     constexpr nsecs_t kTimestamp = 1;
     const auto displayIdOpt = mHwc.onVsync(kInvalidHwcDisplayId, kTimestamp);
     EXPECT_FALSE(displayIdOpt);
 }

 struct MockHWC2ComposerCallback final : StrictMock<HWC2::ComposerCallback> {
     MOCK_METHOD2(onComposerHalHotplug, void(hal::HWDisplayId, hal::Connection));
     MOCK_METHOD1(onComposerHalRefresh, void(hal::HWDisplayId));
     MOCK_METHOD3(onComposerHalVsync,
                  void(hal::HWDisplayId, int64_t timestamp, std::optional<hal::VsyncPeriodNanos>));
     MOCK_METHOD2(onComposerHalVsyncPeriodTimingChanged,
                  void(hal::HWDisplayId, const hal::VsyncPeriodChangeTimeline&));
     MOCK_METHOD1(onComposerHalSeamlessPossible, void(hal::HWDisplayId));
     MOCK_METHOD1(onComposerHalVsyncIdle, void(hal::HWDisplayId));
     MOCK_METHOD(void, onRefreshRateChangedDebug, (const RefreshRateChangedDebugData&), (override));
 };

 struct HWComposerSetCallbackTest : HWComposerTest {
     MockHWC2ComposerCallback mCallback;
 };

 TEST_F(HWComposerSetCallbackTest, loadsLayerMetadataSupport) {
     const std::string kMetadata1Name = "com.example.metadata.1";
     constexpr bool kMetadata1Mandatory = false;
     const std::string kMetadata2Name = "com.example.metadata.2";
     constexpr bool kMetadata2Mandatory = true;

     EXPECT_CALL(*mHal, getCapabilities()).WillOnce(Return(std::vector<aidl::Capability>{}));
     EXPECT_CALL(*mHal, getLayerGenericMetadataKeys(_))
             .WillOnce(DoAll(SetArgPointee<0>(std::vector<hal::LayerGenericMetadataKey>{
                                     {kMetadata1Name, kMetadata1Mandatory},
                                     {kMetadata2Name, kMetadata2Mandatory},
                             }),
                             Return(hardware::graphics::composer::V2_4::Error::NONE)));
     EXPECT_CALL(*mHal, getOverlaySupport(_)).WillOnce(Return(HalError::NONE));
     EXPECT_CALL(*mHal, getHdrConversionCapabilities(_)).WillOnce(Return(HalError::NONE));

     EXPECT_CALL(*mHal, registerCallback(_));

     mHwc.setCallback(mCallback);

     const auto& supported = mHwc.getSupportedLayerGenericMetadata();
     EXPECT_EQ(2u, supported.size());
     EXPECT_EQ(1u, supported.count(kMetadata1Name));
     EXPECT_EQ(kMetadata1Mandatory, supported.find(kMetadata1Name)->second);
     EXPECT_EQ(1u, supported.count(kMetadata2Name));
     EXPECT_EQ(kMetadata2Mandatory, supported.find(kMetadata2Name)->second);
 }

 TEST_F(HWComposerSetCallbackTest, handlesUnsupportedCallToGetLayerGenericMetadataKeys) {
     EXPECT_CALL(*mHal, getCapabilities()).WillOnce(Return(std::vector<aidl::Capability>{}));
     EXPECT_CALL(*mHal, getLayerGenericMetadataKeys(_))
             .WillOnce(Return(hardware::graphics::composer::V2_4::Error::UNSUPPORTED));
     EXPECT_CALL(*mHal, getOverlaySupport(_)).WillOnce(Return(HalError::UNSUPPORTED));
     EXPECT_CALL(*mHal, getHdrConversionCapabilities(_)).WillOnce(Return(HalError::UNSUPPORTED));
     EXPECT_CALL(*mHal, registerCallback(_));

     mHwc.setCallback(mCallback);

     const auto& supported = mHwc.getSupportedLayerGenericMetadata();
     EXPECT_TRUE(supported.empty());
 }

 struct HWComposerLayerTest : public testing::Test {
     static constexpr hal::HWDisplayId kDisplayId = static_cast<hal::HWDisplayId>(1001);
     static constexpr hal::HWLayerId kLayerId = static_cast<hal::HWLayerId>(1002);

     HWComposerLayerTest(const std::unordered_set<aidl::Capability>& capabilities)
           : mCapabilies(capabilities) {
         EXPECT_CALL(mDisplay, getId()).WillRepeatedly(Return(kDisplayId));
     }

     ~HWComposerLayerTest() override {
         EXPECT_CALL(mDisplay, onLayerDestroyed(kLayerId));
         EXPECT_CALL(*mHal, destroyLayer(kDisplayId, kLayerId));
     }

     std::unique_ptr<Hwc2::mock::Composer> mHal{new StrictMock<Hwc2::mock::Composer>()};
     const std::unordered_set<aidl::Capability> mCapabilies;
     StrictMock<HWC2::mock::Display> mDisplay;
     HWC2::impl::Layer mLayer{*mHal, mCapabilies, mDisplay, kLayerId};
 };

 struct HWComposerLayerGenericMetadataTest : public HWComposerLayerTest {
     static const std::string kLayerGenericMetadata1Name;
     static constexpr bool kLayerGenericMetadata1Mandatory = false;
     static const std::vector<uint8_t> kLayerGenericMetadata1Value;
     static const std::string kLayerGenericMetadata2Name;
     static constexpr bool kLayerGenericMetadata2Mandatory = true;
     static const std::vector<uint8_t> kLayerGenericMetadata2Value;

     HWComposerLayerGenericMetadataTest() : HWComposerLayerTest({}) {}
 };

 const std::string HWComposerLayerGenericMetadataTest::kLayerGenericMetadata1Name =
         "com.example.metadata.1";

 const std::vector<uint8_t> HWComposerLayerGenericMetadataTest::kLayerGenericMetadata1Value = {1u,
                                                                                               2u,
                                                                                               3u};

 const std::string HWComposerLayerGenericMetadataTest::kLayerGenericMetadata2Name =
         "com.example.metadata.2";

 const std::vector<uint8_t> HWComposerLayerGenericMetadataTest::kLayerGenericMetadata2Value = {45u,
                                                                                               67u};

 TEST_F(HWComposerLayerGenericMetadataTest, forwardsSupportedMetadata) {
     EXPECT_CALL(*mHal,
                 setLayerGenericMetadata(kDisplayId, kLayerId, kLayerGenericMetadata1Name,
                                         kLayerGenericMetadata1Mandatory,
                                         kLayerGenericMetadata1Value))
             .WillOnce(Return(hardware::graphics::composer::V2_4::Error::NONE));
     auto result = mLayer.setLayerGenericMetadata(kLayerGenericMetadata1Name,
                                                  kLayerGenericMetadata1Mandatory,
                                                  kLayerGenericMetadata1Value);
     EXPECT_EQ(hal::Error::NONE, result);

     EXPECT_CALL(*mHal,
                 setLayerGenericMetadata(kDisplayId, kLayerId, kLayerGenericMetadata2Name,
                                         kLayerGenericMetadata2Mandatory,
                                         kLayerGenericMetadata2Value))
             .WillOnce(Return(hardware::graphics::composer::V2_4::Error::UNSUPPORTED));
     result = mLayer.setLayerGenericMetadata(kLayerGenericMetadata2Name,
                                             kLayerGenericMetadata2Mandatory,
                                             kLayerGenericMetadata2Value);
     EXPECT_EQ(hal::Error::UNSUPPORTED, result);
 }

 } // namespace
 } // namespace android
	/*
	* Copyright 2020 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.
	*/

	// TODO(b/129481165): remove the #pragma below and fix conversion issues
	#pragma clang diagnostic push
	#pragma clang diagnostic ignored "-Wconversion"

	#undef LOG_TAG
	#define LOG_TAG "LibSurfaceFlingerUnittests"

	#include <vector>

	// StrictMock<T> derives from T and is not marked final, so the destructor of T is expected to be
	// virtual in case StrictMock<T> is used as a polymorphic base class. That is not the case here.
	#pragma clang diagnostic push
	#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
	#include <gmock/gmock.h>
	#pragma clang diagnostic pop

	#include <gui/LayerMetadata.h>
	#include <log/log.h>

	#include "DisplayHardware/DisplayMode.h"
	#include "DisplayHardware/HWComposer.h"
	#include "DisplayHardware/Hal.h"
	#include "DisplayIdentificationTestHelpers.h"
	#include "mock/DisplayHardware/MockComposer.h"
	#include "mock/DisplayHardware/MockHWC2.h"

	// TODO(b/129481165): remove the #pragma below and fix conversion issues
	#pragma clang diagnostic pop // ignored "-Wconversion"

	namespace android {
	namespace {

	namespace V2_1 = hardware::graphics::composer::V2_1;
	namespace V2_4 = hardware::graphics::composer::V2_4;
	namespace aidl = aidl::android::hardware::graphics::composer3;

	using Hwc2::Config;

	using ::aidl::android::hardware::graphics::composer3::RefreshRateChangedDebugData;
	using ::testing::_;
	using ::testing::DoAll;
	using ::testing::ElementsAreArray;
	using ::testing::Return;
	using ::testing::SetArgPointee;
	using ::testing::StrictMock;

	struct HWComposerTest : testing::Test {
	using HalError = hardware::graphics::composer::V2_1::Error;

	Hwc2::mock::Composer* const mHal = new StrictMock<Hwc2::mock::Composer>();
	impl::HWComposer mHwc{std::unique_ptr<Hwc2::Composer>(mHal)};

	void expectHotplugConnect(hal::HWDisplayId hwcDisplayId) {
	constexpr uint8_t kPort = 255;
	EXPECT_CALL(*mHal, getDisplayIdentificationData(hwcDisplayId, _, _))
	.WillOnce(DoAll(SetArgPointee<1>(kPort),
	SetArgPointee<2>(getExternalEdid()), Return(HalError::NONE)));

	EXPECT_CALL(*mHal, setClientTargetSlotCount(_));
	EXPECT_CALL(*mHal, setVsyncEnabled(hwcDisplayId, Hwc2::IComposerClient::Vsync::DISABLE));
	EXPECT_CALL(*mHal, onHotplugConnect(hwcDisplayId));
	}
	};

	TEST_F(HWComposerTest, isHeadless) {
	ASSERT_TRUE(mHwc.isHeadless());

	constexpr hal::HWDisplayId kHwcDisplayId = 1;
	expectHotplugConnect(kHwcDisplayId);

	const auto info = mHwc.onHotplug(kHwcDisplayId, hal::Connection::CONNECTED);
	ASSERT_TRUE(info);

	ASSERT_FALSE(mHwc.isHeadless());

	mHwc.disconnectDisplay(info->id);
	ASSERT_TRUE(mHwc.isHeadless());
	}

	TEST_F(HWComposerTest, getActiveMode) {
	// Unknown display.
	EXPECT_EQ(mHwc.getActiveMode(PhysicalDisplayId::fromPort(0)), std::nullopt);

	constexpr hal::HWDisplayId kHwcDisplayId = 2;
	expectHotplugConnect(kHwcDisplayId);

	const auto info = mHwc.onHotplug(kHwcDisplayId, hal::Connection::CONNECTED);
	ASSERT_TRUE(info);

	{
	// Display is known to SF but not HWC, e.g. the hotplug disconnect is pending.
	EXPECT_CALL(*mHal, getActiveConfig(kHwcDisplayId, _))
	.WillOnce(Return(HalError::BAD_DISPLAY));

	EXPECT_EQ(mHwc.getActiveMode(info->id), std::nullopt);
	}
	{
	constexpr hal::HWConfigId kConfigId = 42;
	EXPECT_CALL(*mHal, getActiveConfig(kHwcDisplayId, _))
	.WillOnce(DoAll(SetArgPointee<1>(kConfigId), Return(HalError::NONE)));

	EXPECT_EQ(mHwc.getActiveMode(info->id), kConfigId);
	}
	}

	TEST_F(HWComposerTest, onVsync) {
	constexpr hal::HWDisplayId kHwcDisplayId = 1;
	expectHotplugConnect(kHwcDisplayId);

	const auto info = mHwc.onHotplug(kHwcDisplayId, hal::Connection::CONNECTED);
	ASSERT_TRUE(info);

	const auto physicalDisplayId = info->id;

	// Deliberately chosen not to match DisplayData.lastPresentTimestamp's
	// initial value.
	constexpr nsecs_t kTimestamp = 1;
	auto displayIdOpt = mHwc.onVsync(kHwcDisplayId, kTimestamp);
	ASSERT_TRUE(displayIdOpt);
	EXPECT_EQ(physicalDisplayId, displayIdOpt);

	// Attempt to send the same time stamp again.
	displayIdOpt = mHwc.onVsync(kHwcDisplayId, kTimestamp);
	EXPECT_FALSE(displayIdOpt);
	}

	TEST_F(HWComposerTest, onVsyncInvalid) {
	constexpr hal::HWDisplayId kInvalidHwcDisplayId = 2;
	constexpr nsecs_t kTimestamp = 1;
	const auto displayIdOpt = mHwc.onVsync(kInvalidHwcDisplayId, kTimestamp);
	EXPECT_FALSE(displayIdOpt);
	}

	struct MockHWC2ComposerCallback final : StrictMock<HWC2::ComposerCallback> {
	MOCK_METHOD2(onComposerHalHotplug, void(hal::HWDisplayId, hal::Connection));
	MOCK_METHOD1(onComposerHalRefresh, void(hal::HWDisplayId));
	MOCK_METHOD3(onComposerHalVsync,
	void(hal::HWDisplayId, int64_t timestamp, std::optional<hal::VsyncPeriodNanos>));
	MOCK_METHOD2(onComposerHalVsyncPeriodTimingChanged,
	void(hal::HWDisplayId, const hal::VsyncPeriodChangeTimeline&));
	MOCK_METHOD1(onComposerHalSeamlessPossible, void(hal::HWDisplayId));
	MOCK_METHOD1(onComposerHalVsyncIdle, void(hal::HWDisplayId));
	MOCK_METHOD(void, onRefreshRateChangedDebug, (const RefreshRateChangedDebugData&), (override));
	};

	struct HWComposerSetCallbackTest : HWComposerTest {
	MockHWC2ComposerCallback mCallback;
	};

	TEST_F(HWComposerSetCallbackTest, loadsLayerMetadataSupport) {
	const std::string kMetadata1Name = "com.example.metadata.1";
	constexpr bool kMetadata1Mandatory = false;
	const std::string kMetadata2Name = "com.example.metadata.2";
	constexpr bool kMetadata2Mandatory = true;

	EXPECT_CALL(*mHal, getCapabilities()).WillOnce(Return(std::vector<aidl::Capability>{}));
	EXPECT_CALL(*mHal, getLayerGenericMetadataKeys(_))
	.WillOnce(DoAll(SetArgPointee<0>(std::vector<hal::LayerGenericMetadataKey>{
	{kMetadata1Name, kMetadata1Mandatory},
	{kMetadata2Name, kMetadata2Mandatory},
	}),
	Return(hardware::graphics::composer::V2_4::Error::NONE)));
	EXPECT_CALL(*mHal, getOverlaySupport(_)).WillOnce(Return(HalError::NONE));
	EXPECT_CALL(*mHal, getHdrConversionCapabilities(_)).WillOnce(Return(HalError::NONE));

	EXPECT_CALL(*mHal, registerCallback(_));

	mHwc.setCallback(mCallback);

	const auto& supported = mHwc.getSupportedLayerGenericMetadata();
	EXPECT_EQ(2u, supported.size());
	EXPECT_EQ(1u, supported.count(kMetadata1Name));
	EXPECT_EQ(kMetadata1Mandatory, supported.find(kMetadata1Name)->second);
	EXPECT_EQ(1u, supported.count(kMetadata2Name));
	EXPECT_EQ(kMetadata2Mandatory, supported.find(kMetadata2Name)->second);
	}

	TEST_F(HWComposerSetCallbackTest, handlesUnsupportedCallToGetLayerGenericMetadataKeys) {
	EXPECT_CALL(*mHal, getCapabilities()).WillOnce(Return(std::vector<aidl::Capability>{}));
	EXPECT_CALL(*mHal, getLayerGenericMetadataKeys(_))
	.WillOnce(Return(hardware::graphics::composer::V2_4::Error::UNSUPPORTED));
	EXPECT_CALL(*mHal, getOverlaySupport(_)).WillOnce(Return(HalError::UNSUPPORTED));
	EXPECT_CALL(*mHal, getHdrConversionCapabilities(_)).WillOnce(Return(HalError::UNSUPPORTED));
	EXPECT_CALL(*mHal, registerCallback(_));

	mHwc.setCallback(mCallback);

	const auto& supported = mHwc.getSupportedLayerGenericMetadata();
	EXPECT_TRUE(supported.empty());
	}

	struct HWComposerLayerTest : public testing::Test {
	static constexpr hal::HWDisplayId kDisplayId = static_cast<hal::HWDisplayId>(1001);
	static constexpr hal::HWLayerId kLayerId = static_cast<hal::HWLayerId>(1002);

	HWComposerLayerTest(const std::unordered_set<aidl::Capability>& capabilities)
	: mCapabilies(capabilities) {
	EXPECT_CALL(mDisplay, getId()).WillRepeatedly(Return(kDisplayId));
	}

	~HWComposerLayerTest() override {
	EXPECT_CALL(mDisplay, onLayerDestroyed(kLayerId));
	EXPECT_CALL(*mHal, destroyLayer(kDisplayId, kLayerId));
	}

	std::unique_ptr<Hwc2::mock::Composer> mHal{new StrictMock<Hwc2::mock::Composer>()};
	const std::unordered_set<aidl::Capability> mCapabilies;
	StrictMock<HWC2::mock::Display> mDisplay;
	HWC2::impl::Layer mLayer{*mHal, mCapabilies, mDisplay, kLayerId};
	};

	struct HWComposerLayerGenericMetadataTest : public HWComposerLayerTest {
	static const std::string kLayerGenericMetadata1Name;
	static constexpr bool kLayerGenericMetadata1Mandatory = false;
	static const std::vector<uint8_t> kLayerGenericMetadata1Value;
	static const std::string kLayerGenericMetadata2Name;
	static constexpr bool kLayerGenericMetadata2Mandatory = true;
	static const std::vector<uint8_t> kLayerGenericMetadata2Value;

	HWComposerLayerGenericMetadataTest() : HWComposerLayerTest({}) {}
	};

	const std::string HWComposerLayerGenericMetadataTest::kLayerGenericMetadata1Name =
	"com.example.metadata.1";

	const std::vector<uint8_t> HWComposerLayerGenericMetadataTest::kLayerGenericMetadata1Value = {1u,
	2u,
	3u};

	const std::string HWComposerLayerGenericMetadataTest::kLayerGenericMetadata2Name =
	"com.example.metadata.2";

	const std::vector<uint8_t> HWComposerLayerGenericMetadataTest::kLayerGenericMetadata2Value = {45u,
	67u};

	TEST_F(HWComposerLayerGenericMetadataTest, forwardsSupportedMetadata) {
	EXPECT_CALL(*mHal,
	setLayerGenericMetadata(kDisplayId, kLayerId, kLayerGenericMetadata1Name,
	kLayerGenericMetadata1Mandatory,
	kLayerGenericMetadata1Value))
	.WillOnce(Return(hardware::graphics::composer::V2_4::Error::NONE));
	auto result = mLayer.setLayerGenericMetadata(kLayerGenericMetadata1Name,
	kLayerGenericMetadata1Mandatory,
	kLayerGenericMetadata1Value);
	EXPECT_EQ(hal::Error::NONE, result);

	EXPECT_CALL(*mHal,
	setLayerGenericMetadata(kDisplayId, kLayerId, kLayerGenericMetadata2Name,
	kLayerGenericMetadata2Mandatory,
	kLayerGenericMetadata2Value))
	.WillOnce(Return(hardware::graphics::composer::V2_4::Error::UNSUPPORTED));
	result = mLayer.setLayerGenericMetadata(kLayerGenericMetadata2Name,
	kLayerGenericMetadata2Mandatory,
	kLayerGenericMetadata2Value);
	EXPECT_EQ(hal::Error::UNSUPPORTED, result);
	}

	} // namespace
	} // namespace android