src/app/tests/TestReportingEngine.cpp - third_party/github/project-chip/connectedhomeip - Git at Google

 /*
  *
  *    Copyright (c) 2021 Project CHIP Authors
  *    All rights reserved.
  *
  *    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.
  */

 /**
  *    @file
  *      This file implements unit tests for CHIP Interaction Model Reporting Engine
  *
  */

 #include <app/ConcreteAttributePath.h>
 #include <app/InteractionModelEngine.h>
 #include <app/reporting/Engine.h>
 #include <app/reporting/tests/MockReportScheduler.h>
 #include <app/tests/AppTestContext.h>
 #include <lib/core/CHIPCore.h>
 #include <lib/core/ErrorStr.h>
 #include <lib/core/TLV.h>
 #include <lib/core/TLVDebug.h>
 #include <lib/core/TLVUtilities.h>
 #include <lib/support/UnitTestContext.h>
 #include <lib/support/UnitTestRegistration.h>
 #include <messaging/ExchangeContext.h>
 #include <messaging/Flags.h>

 #include <cinttypes>
 #include <nlunit-test.h>

 using TestContext = chip::Test::AppContext;

 namespace chip {

 constexpr ClusterId kTestClusterId        = 6;
 constexpr EndpointId kTestEndpointId      = 1;
 constexpr chip::AttributeId kTestFieldId1 = 1;
 constexpr chip::AttributeId kTestFieldId2 = 2;

 namespace app {
 namespace reporting {
 class TestReportingEngine
 {
 public:
     static void TestBuildAndSendSingleReportData(nlTestSuite * apSuite, void * apContext);
     static void TestMergeOverlappedAttributePath(nlTestSuite * apSuite, void * apContext);
     static void TestMergeAttributePathWhenDirtySetPoolExhausted(nlTestSuite * apSuite, void * apContext);

 private:
     static bool InsertToDirtySet(const AttributePathParams & aPath);

     struct ExpectedDirtySetContent : public AttributePathParams
     {
         ExpectedDirtySetContent(const AttributePathParams & path) : AttributePathParams(path) {}
         bool verified = false;
     };

     template <typename... Args>
     static bool VerifyDirtySetContent(const Args &... args)
     {
         const int size                        = sizeof...(args);
         ExpectedDirtySetContent content[size] = { ExpectedDirtySetContent(args)... };

         if (InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ForEachActiveObject([&](auto * path) {
                 for (int i = 0; i < size; i++)
                 {
                     if (static_cast<AttributePathParams>(content[i]) == static_cast<AttributePathParams>(*path))
                     {
                         content[i].verified = true;
                         return Loop::Continue;
                     }
                 }
                 ChipLogDetail(DataManagement, "Dirty path Endpoint %x Cluster %" PRIx32 ", Attribute %" PRIx32 " is not expected",
                               path->mEndpointId, path->mClusterId, path->mAttributeId);
                 return Loop::Break;
             }) == Loop::Break)
         {
             return false;
         }

         for (int i = 0; i < size; i++)
         {
             if (!content[i].verified)
             {
                 ChipLogDetail(DataManagement,
                               "Dirty path Endpoint %x Cluster %" PRIx32 ", Attribute %" PRIx32 " is not found in the dirty set",
                               content[i].mEndpointId, content[i].mClusterId, content[i].mAttributeId);
                 return false;
             }
         }
         return true;
     }
 };

 class TestExchangeDelegate : public Messaging::ExchangeDelegate
 {
     CHIP_ERROR OnMessageReceived(Messaging::ExchangeContext * ec, const PayloadHeader & payloadHeader,
                                  System::PacketBufferHandle && payload) override
     {
         return CHIP_NO_ERROR;
     }

     void OnResponseTimeout(Messaging::ExchangeContext * ec) override {}
 };

 class DummyDelegate : public ReadHandler::ManagementCallback
 {
 public:
     void OnDone(ReadHandler & apHandler) override {}
     chip::app::ReadHandler::ApplicationCallback * GetAppCallback() override { return nullptr; }
     chip::app::InteractionModelEngine * GetInteractionModelEngine() override
     {
         return chip::app::InteractionModelEngine::GetInstance();
     }
 };

 void TestReportingEngine::TestBuildAndSendSingleReportData(nlTestSuite * apSuite, void * apContext)
 {
     TestContext & ctx = *static_cast<TestContext *>(apContext);
     CHIP_ERROR err    = CHIP_NO_ERROR;
     System::PacketBufferTLVWriter writer;
     System::PacketBufferHandle readRequestbuf = System::PacketBufferHandle::New(System::PacketBuffer::kMaxSize);
     ReadRequestMessage::Builder readRequestBuilder;
     DummyDelegate dummy;

     err = InteractionModelEngine::GetInstance()->Init(&ctx.GetExchangeManager(), &ctx.GetFabricTable(),
                                                       app::reporting::GetDefaultReportScheduler());
     NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);
     TestExchangeDelegate delegate;
     Messaging::ExchangeContext * exchangeCtx = ctx.NewExchangeToAlice(&delegate);

     writer.Init(std::move(readRequestbuf));
     err = readRequestBuilder.Init(&writer);
     NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);
     AttributePathIBs::Builder & attributePathListBuilder = readRequestBuilder.CreateAttributeRequests();
     NL_TEST_ASSERT(apSuite, readRequestBuilder.GetError() == CHIP_NO_ERROR);
     AttributePathIB::Builder & attributePathBuilder1 = attributePathListBuilder.CreatePath();
     NL_TEST_ASSERT(apSuite, attributePathListBuilder.GetError() == CHIP_NO_ERROR);
     attributePathBuilder1.Node(1).Endpoint(kTestEndpointId).Cluster(kTestClusterId).Attribute(kTestFieldId1).EndOfAttributePathIB();
     NL_TEST_ASSERT(apSuite, attributePathBuilder1.GetError() == CHIP_NO_ERROR);

     AttributePathIB::Builder & attributePathBuilder2 = attributePathListBuilder.CreatePath();
     NL_TEST_ASSERT(apSuite, attributePathListBuilder.GetError() == CHIP_NO_ERROR);
     attributePathBuilder2.Node(1).Endpoint(kTestEndpointId).Cluster(kTestClusterId).Attribute(kTestFieldId2).EndOfAttributePathIB();
     NL_TEST_ASSERT(apSuite, attributePathBuilder2.GetError() == CHIP_NO_ERROR);
     attributePathListBuilder.EndOfAttributePathIBs();

     NL_TEST_ASSERT(apSuite, readRequestBuilder.GetError() == CHIP_NO_ERROR);
     readRequestBuilder.IsFabricFiltered(false).EndOfReadRequestMessage();
     NL_TEST_ASSERT(apSuite, readRequestBuilder.GetError() == CHIP_NO_ERROR);
     err = writer.Finalize(&readRequestbuf);
     NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);
     app::ReadHandler readHandler(dummy, exchangeCtx, chip::app::ReadHandler::InteractionType::Read,
                                  app::reporting::GetDefaultReportScheduler());
     readHandler.OnInitialRequest(std::move(readRequestbuf));
     err = InteractionModelEngine::GetInstance()->GetReportingEngine().BuildAndSendSingleReportData(&readHandler);

     ctx.DrainAndServiceIO();

     NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);
 }

 void TestReportingEngine::TestMergeOverlappedAttributePath(nlTestSuite * apSuite, void * apContext)
 {
     TestContext & ctx = *static_cast<TestContext *>(apContext);
     CHIP_ERROR err    = CHIP_NO_ERROR;
     err               = InteractionModelEngine::GetInstance()->Init(&ctx.GetExchangeManager(), &ctx.GetFabricTable(),
                                                                     app::reporting::GetDefaultReportScheduler());
     NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);

     AttributePathParams * clusterInfo = InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.CreateObject();
     clusterInfo->mEndpointId          = 1;
     clusterInfo->mClusterId           = 1;
     clusterInfo->mAttributeId         = 1;

     {
         AttributePathParams testClusterInfo;
         testClusterInfo.mEndpointId  = 1;
         testClusterInfo.mClusterId   = 1;
         testClusterInfo.mAttributeId = 3;
         NL_TEST_ASSERT(apSuite,
                        !InteractionModelEngine::GetInstance()->GetReportingEngine().MergeOverlappedAttributePath(testClusterInfo));
     }
     {
         AttributePathParams testClusterInfo;
         testClusterInfo.mEndpointId  = 1;
         testClusterInfo.mClusterId   = 1;
         testClusterInfo.mAttributeId = 1;
         testClusterInfo.mListIndex   = 2;
         NL_TEST_ASSERT(apSuite,
                        InteractionModelEngine::GetInstance()->GetReportingEngine().MergeOverlappedAttributePath(testClusterInfo));
     }

     {
         AttributePathParams testClusterInfo;
         testClusterInfo.mEndpointId  = 1;
         testClusterInfo.mClusterId   = 1;
         testClusterInfo.mAttributeId = kInvalidAttributeId;
         NL_TEST_ASSERT(apSuite,
                        InteractionModelEngine::GetInstance()->GetReportingEngine().MergeOverlappedAttributePath(testClusterInfo));
     }

     {
         AttributePathParams testClusterInfo;
         testClusterInfo.mClusterId   = kInvalidClusterId;
         testClusterInfo.mAttributeId = kInvalidAttributeId;
         NL_TEST_ASSERT(apSuite,
                        InteractionModelEngine::GetInstance()->GetReportingEngine().MergeOverlappedAttributePath(testClusterInfo));
         NL_TEST_ASSERT(apSuite, clusterInfo->mClusterId == kInvalidClusterId && clusterInfo->mAttributeId == kInvalidAttributeId);
     }

     {
         AttributePathParams testClusterInfo;
         testClusterInfo.mEndpointId  = kInvalidEndpointId;
         testClusterInfo.mClusterId   = kInvalidClusterId;
         testClusterInfo.mAttributeId = kInvalidAttributeId;
         NL_TEST_ASSERT(apSuite,
                        InteractionModelEngine::GetInstance()->GetReportingEngine().MergeOverlappedAttributePath(testClusterInfo));
         NL_TEST_ASSERT(apSuite,
                        clusterInfo->mEndpointId == kInvalidEndpointId && clusterInfo->mClusterId == kInvalidClusterId &&
                            clusterInfo->mAttributeId == kInvalidAttributeId);
     }
     InteractionModelEngine::GetInstance()->GetReportingEngine().Shutdown();
 }

 bool TestReportingEngine::InsertToDirtySet(const AttributePathParams & aPath)
 {
     auto path = InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.CreateObject();
     VerifyOrReturnError(path != nullptr, false);
     *path             = aPath;
     path->mGeneration = InteractionModelEngine::GetInstance()->GetReportingEngine().GetDirtySetGeneration();
     return true;
 }

 void TestReportingEngine::TestMergeAttributePathWhenDirtySetPoolExhausted(nlTestSuite * apSuite, void * apContext)
 {
     TestContext & ctx = *static_cast<TestContext *>(apContext);
     CHIP_ERROR err    = CHIP_NO_ERROR;
     err               = InteractionModelEngine::GetInstance()->Init(&ctx.GetExchangeManager(), &ctx.GetFabricTable(),
                                                                     app::reporting::GetDefaultReportScheduler());
     NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);

     InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ReleaseAll();
     InteractionModelEngine::GetInstance()->GetReportingEngine().BumpDirtySetGeneration();

     // Case 1: All dirty paths including the new one are under the same cluster.
     // -> Expected behavior: The dirty set is replaced by a wildcard attribute path under the same cluster.
     for (AttributeId i = 1; i <= CHIP_IM_SERVER_MAX_NUM_DIRTY_SET; i++)
     {
         NL_TEST_ASSERT(apSuite, InsertToDirtySet(AttributePathParams(kTestEndpointId, kTestClusterId, i)));
     }
     NL_TEST_ASSERT(apSuite,
                    CHIP_NO_ERROR ==
                        InteractionModelEngine::GetInstance()->GetReportingEngine().InsertPathIntoDirtySet(
                            AttributePathParams(kTestEndpointId, kTestClusterId, CHIP_IM_SERVER_MAX_NUM_DIRTY_SET + 1)));
     NL_TEST_ASSERT(apSuite, VerifyDirtySetContent(AttributePathParams(kTestEndpointId, kTestClusterId)));

     InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ReleaseAll();

     // Case 2: All dirty paths including the new one are under the same endpoint.
     // -> Expected behavior: The dirty set is replaced by a wildcard cluster path under the same endpoint.
     for (ClusterId i = 1; i <= CHIP_IM_SERVER_MAX_NUM_DIRTY_SET; i++)
     {
         NL_TEST_ASSERT(apSuite, InsertToDirtySet(AttributePathParams(kTestEndpointId, i, 1)));
     }
     NL_TEST_ASSERT(apSuite,
                    CHIP_NO_ERROR ==
                        InteractionModelEngine::GetInstance()->GetReportingEngine().InsertPathIntoDirtySet(
                            AttributePathParams(kTestEndpointId, ClusterId(CHIP_IM_SERVER_MAX_NUM_DIRTY_SET + 1), 1)));
     NL_TEST_ASSERT(apSuite, VerifyDirtySetContent(AttributePathParams(kTestEndpointId, kInvalidClusterId)));

     InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ReleaseAll();

     // Case 3: All dirty paths including the new one are under the different endpoints.
     // -> Expected behavior: The dirty set is replaced by a wildcard endpoint.
     for (EndpointId i = 1; i <= CHIP_IM_SERVER_MAX_NUM_DIRTY_SET; i++)
     {
         NL_TEST_ASSERT(apSuite, InsertToDirtySet(AttributePathParams(EndpointId(i), i, i)));
     }
     NL_TEST_ASSERT(apSuite,
                    CHIP_NO_ERROR ==
                        InteractionModelEngine::GetInstance()->GetReportingEngine().InsertPathIntoDirtySet(
                            AttributePathParams(EndpointId(CHIP_IM_SERVER_MAX_NUM_DIRTY_SET + 1), 1, 1)));
     NL_TEST_ASSERT(apSuite, VerifyDirtySetContent(AttributePathParams()));

     InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ReleaseAll();

     // Case 4: All existing dirty paths are under the same cluster, the new path comes from another cluster.
     // -> Expected behavior: The existing paths are merged into one single wildcard attribute path. New path is inserted as-is.
     for (EndpointId i = 1; i <= CHIP_IM_SERVER_MAX_NUM_DIRTY_SET; i++)
     {
         NL_TEST_ASSERT(apSuite, InsertToDirtySet(AttributePathParams(kTestEndpointId, kTestClusterId, i)));
     }
     NL_TEST_ASSERT(apSuite,
                    CHIP_NO_ERROR ==
                        InteractionModelEngine::GetInstance()->GetReportingEngine().InsertPathIntoDirtySet(
                            AttributePathParams(kTestEndpointId + 1, kTestClusterId + 1, 1)));
     NL_TEST_ASSERT(apSuite,
                    VerifyDirtySetContent(AttributePathParams(kTestEndpointId, kTestClusterId),
                                          AttributePathParams(kTestEndpointId + 1, kTestClusterId + 1, 1)));

     InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ReleaseAll();

     // Case 5: All existing dirty paths are under the same endpoint, the new path comes from another endpoint.
     // -> Expected behavior: The existing paths are merged into one single wildcard cluster path. New path is inserted as-is.
     for (EndpointId i = 1; i <= CHIP_IM_SERVER_MAX_NUM_DIRTY_SET; i++)
     {
         NL_TEST_ASSERT(apSuite, InsertToDirtySet(AttributePathParams(kTestEndpointId, i, 1)));
     }
     NL_TEST_ASSERT(apSuite,
                    CHIP_NO_ERROR ==
                        InteractionModelEngine::GetInstance()->GetReportingEngine().InsertPathIntoDirtySet(
                            AttributePathParams(kTestEndpointId + 1, kTestClusterId + 1, 1)));
     NL_TEST_ASSERT(apSuite,
                    VerifyDirtySetContent(AttributePathParams(kTestEndpointId, kInvalidClusterId),
                                          AttributePathParams(kTestEndpointId + 1, kTestClusterId + 1, 1)));

     InteractionModelEngine::GetInstance()->GetReportingEngine().Shutdown();
 }

 } // namespace reporting
 } // namespace app
 } // namespace chip

 namespace {
 // clang-format off
 const nlTest sTests[] =
 {
     NL_TEST_DEF("CheckBuildAndSendSingleReportData", chip::app::reporting::TestReportingEngine::TestBuildAndSendSingleReportData),
     NL_TEST_DEF("TestMergeOverlappedAttributePath", chip::app::reporting::TestReportingEngine::TestMergeOverlappedAttributePath),
     NL_TEST_DEF("TestMergeAttributePathWhenDirtySetPoolExhausted", chip::app::reporting::TestReportingEngine::TestMergeAttributePathWhenDirtySetPoolExhausted),
     NL_TEST_SENTINEL()
 };
 // clang-format on

 // clang-format off
 nlTestSuite sSuite =
 {
     "TestReportingEngine",
     &sTests[0],
     TestContext::nlTestSetUpTestSuite,
     TestContext::nlTestTearDownTestSuite,
     TestContext::nlTestSetUp,
     TestContext::nlTestTearDown,
 };
 // clang-format on

 } // namespace

 int TestReportingEngine()
 {
     return chip::ExecuteTestsWithContext<TestContext>(&sSuite);
 }

 CHIP_REGISTER_TEST_SUITE(TestReportingEngine)
	/*
	*
	* Copyright (c) 2021 Project CHIP Authors
	* All rights reserved.
	*
	* 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.
	*/

	/**
	* @file
	* This file implements unit tests for CHIP Interaction Model Reporting Engine
	*
	*/

	#include <app/ConcreteAttributePath.h>
	#include <app/InteractionModelEngine.h>
	#include <app/reporting/Engine.h>
	#include <app/reporting/tests/MockReportScheduler.h>
	#include <app/tests/AppTestContext.h>
	#include <lib/core/CHIPCore.h>
	#include <lib/core/ErrorStr.h>
	#include <lib/core/TLV.h>
	#include <lib/core/TLVDebug.h>
	#include <lib/core/TLVUtilities.h>
	#include <lib/support/UnitTestContext.h>
	#include <lib/support/UnitTestRegistration.h>
	#include <messaging/ExchangeContext.h>
	#include <messaging/Flags.h>

	#include <cinttypes>
	#include <nlunit-test.h>

	using TestContext = chip::Test::AppContext;

	namespace chip {

	constexpr ClusterId kTestClusterId = 6;
	constexpr EndpointId kTestEndpointId = 1;
	constexpr chip::AttributeId kTestFieldId1 = 1;
	constexpr chip::AttributeId kTestFieldId2 = 2;

	namespace app {
	namespace reporting {
	class TestReportingEngine
	{
	public:
	static void TestBuildAndSendSingleReportData(nlTestSuite * apSuite, void * apContext);
	static void TestMergeOverlappedAttributePath(nlTestSuite * apSuite, void * apContext);
	static void TestMergeAttributePathWhenDirtySetPoolExhausted(nlTestSuite * apSuite, void * apContext);

	private:
	static bool InsertToDirtySet(const AttributePathParams & aPath);

	struct ExpectedDirtySetContent : public AttributePathParams
	{
	ExpectedDirtySetContent(const AttributePathParams & path) : AttributePathParams(path) {}
	bool verified = false;
	};

	template <typename... Args>
	static bool VerifyDirtySetContent(const Args &... args)
	{
	const int size = sizeof...(args);
	ExpectedDirtySetContent content[size] = { ExpectedDirtySetContent(args)... };

	if (InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ForEachActiveObject([&](auto * path) {
	for (int i = 0; i < size; i++)
	{
	if (static_cast<AttributePathParams>(content[i]) == static_cast<AttributePathParams>(*path))
	{
	content[i].verified = true;
	return Loop::Continue;
	}
	}
	ChipLogDetail(DataManagement, "Dirty path Endpoint %x Cluster %" PRIx32 ", Attribute %" PRIx32 " is not expected",
	path->mEndpointId, path->mClusterId, path->mAttributeId);
	return Loop::Break;
	}) == Loop::Break)
	{
	return false;
	}

	for (int i = 0; i < size; i++)
	{
	if (!content[i].verified)
	{
	ChipLogDetail(DataManagement,
	"Dirty path Endpoint %x Cluster %" PRIx32 ", Attribute %" PRIx32 " is not found in the dirty set",
	content[i].mEndpointId, content[i].mClusterId, content[i].mAttributeId);
	return false;
	}
	}
	return true;
	}
	};

	class TestExchangeDelegate : public Messaging::ExchangeDelegate
	{
	CHIP_ERROR OnMessageReceived(Messaging::ExchangeContext * ec, const PayloadHeader & payloadHeader,
	System::PacketBufferHandle && payload) override
	{
	return CHIP_NO_ERROR;
	}

	void OnResponseTimeout(Messaging::ExchangeContext * ec) override {}
	};

	class DummyDelegate : public ReadHandler::ManagementCallback
	{
	public:
	void OnDone(ReadHandler & apHandler) override {}
	chip::app::ReadHandler::ApplicationCallback * GetAppCallback() override { return nullptr; }
	chip::app::InteractionModelEngine * GetInteractionModelEngine() override
	{
	return chip::app::InteractionModelEngine::GetInstance();
	}
	};

	void TestReportingEngine::TestBuildAndSendSingleReportData(nlTestSuite * apSuite, void * apContext)
	{
	TestContext & ctx = static_cast<TestContext >(apContext);
	CHIP_ERROR err = CHIP_NO_ERROR;
	System::PacketBufferTLVWriter writer;
	System::PacketBufferHandle readRequestbuf = System::PacketBufferHandle::New(System::PacketBuffer::kMaxSize);
	ReadRequestMessage::Builder readRequestBuilder;
	DummyDelegate dummy;

	err = InteractionModelEngine::GetInstance()->Init(&ctx.GetExchangeManager(), &ctx.GetFabricTable(),
	app::reporting::GetDefaultReportScheduler());
	NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);
	TestExchangeDelegate delegate;
	Messaging::ExchangeContext * exchangeCtx = ctx.NewExchangeToAlice(&delegate);

	writer.Init(std::move(readRequestbuf));
	err = readRequestBuilder.Init(&writer);
	NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);
	AttributePathIBs::Builder & attributePathListBuilder = readRequestBuilder.CreateAttributeRequests();
	NL_TEST_ASSERT(apSuite, readRequestBuilder.GetError() == CHIP_NO_ERROR);
	AttributePathIB::Builder & attributePathBuilder1 = attributePathListBuilder.CreatePath();
	NL_TEST_ASSERT(apSuite, attributePathListBuilder.GetError() == CHIP_NO_ERROR);
	attributePathBuilder1.Node(1).Endpoint(kTestEndpointId).Cluster(kTestClusterId).Attribute(kTestFieldId1).EndOfAttributePathIB();
	NL_TEST_ASSERT(apSuite, attributePathBuilder1.GetError() == CHIP_NO_ERROR);

	AttributePathIB::Builder & attributePathBuilder2 = attributePathListBuilder.CreatePath();
	NL_TEST_ASSERT(apSuite, attributePathListBuilder.GetError() == CHIP_NO_ERROR);
	attributePathBuilder2.Node(1).Endpoint(kTestEndpointId).Cluster(kTestClusterId).Attribute(kTestFieldId2).EndOfAttributePathIB();
	NL_TEST_ASSERT(apSuite, attributePathBuilder2.GetError() == CHIP_NO_ERROR);
	attributePathListBuilder.EndOfAttributePathIBs();

	NL_TEST_ASSERT(apSuite, readRequestBuilder.GetError() == CHIP_NO_ERROR);
	readRequestBuilder.IsFabricFiltered(false).EndOfReadRequestMessage();
	NL_TEST_ASSERT(apSuite, readRequestBuilder.GetError() == CHIP_NO_ERROR);
	err = writer.Finalize(&readRequestbuf);
	NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);
	app::ReadHandler readHandler(dummy, exchangeCtx, chip::app::ReadHandler::InteractionType::Read,
	app::reporting::GetDefaultReportScheduler());
	readHandler.OnInitialRequest(std::move(readRequestbuf));
	err = InteractionModelEngine::GetInstance()->GetReportingEngine().BuildAndSendSingleReportData(&readHandler);

	ctx.DrainAndServiceIO();

	NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);
	}

	void TestReportingEngine::TestMergeOverlappedAttributePath(nlTestSuite * apSuite, void * apContext)
	{
	TestContext & ctx = static_cast<TestContext >(apContext);
	CHIP_ERROR err = CHIP_NO_ERROR;
	err = InteractionModelEngine::GetInstance()->Init(&ctx.GetExchangeManager(), &ctx.GetFabricTable(),
	app::reporting::GetDefaultReportScheduler());
	NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);

	AttributePathParams * clusterInfo = InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.CreateObject();
	clusterInfo->mEndpointId = 1;
	clusterInfo->mClusterId = 1;
	clusterInfo->mAttributeId = 1;

	{
	AttributePathParams testClusterInfo;
	testClusterInfo.mEndpointId = 1;
	testClusterInfo.mClusterId = 1;
	testClusterInfo.mAttributeId = 3;
	NL_TEST_ASSERT(apSuite,
	!InteractionModelEngine::GetInstance()->GetReportingEngine().MergeOverlappedAttributePath(testClusterInfo));
	}
	{
	AttributePathParams testClusterInfo;
	testClusterInfo.mEndpointId = 1;
	testClusterInfo.mClusterId = 1;
	testClusterInfo.mAttributeId = 1;
	testClusterInfo.mListIndex = 2;
	NL_TEST_ASSERT(apSuite,
	InteractionModelEngine::GetInstance()->GetReportingEngine().MergeOverlappedAttributePath(testClusterInfo));
	}

	{
	AttributePathParams testClusterInfo;
	testClusterInfo.mEndpointId = 1;
	testClusterInfo.mClusterId = 1;
	testClusterInfo.mAttributeId = kInvalidAttributeId;
	NL_TEST_ASSERT(apSuite,
	InteractionModelEngine::GetInstance()->GetReportingEngine().MergeOverlappedAttributePath(testClusterInfo));
	}

	{
	AttributePathParams testClusterInfo;
	testClusterInfo.mClusterId = kInvalidClusterId;
	testClusterInfo.mAttributeId = kInvalidAttributeId;
	NL_TEST_ASSERT(apSuite,
	InteractionModelEngine::GetInstance()->GetReportingEngine().MergeOverlappedAttributePath(testClusterInfo));
	NL_TEST_ASSERT(apSuite, clusterInfo->mClusterId == kInvalidClusterId && clusterInfo->mAttributeId == kInvalidAttributeId);
	}

	{
	AttributePathParams testClusterInfo;
	testClusterInfo.mEndpointId = kInvalidEndpointId;
	testClusterInfo.mClusterId = kInvalidClusterId;
	testClusterInfo.mAttributeId = kInvalidAttributeId;
	NL_TEST_ASSERT(apSuite,
	InteractionModelEngine::GetInstance()->GetReportingEngine().MergeOverlappedAttributePath(testClusterInfo));
	NL_TEST_ASSERT(apSuite,
	clusterInfo->mEndpointId == kInvalidEndpointId && clusterInfo->mClusterId == kInvalidClusterId &&
	clusterInfo->mAttributeId == kInvalidAttributeId);
	}
	InteractionModelEngine::GetInstance()->GetReportingEngine().Shutdown();
	}

	bool TestReportingEngine::InsertToDirtySet(const AttributePathParams & aPath)
	{
	auto path = InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.CreateObject();
	VerifyOrReturnError(path != nullptr, false);
	*path = aPath;
	path->mGeneration = InteractionModelEngine::GetInstance()->GetReportingEngine().GetDirtySetGeneration();
	return true;
	}

	void TestReportingEngine::TestMergeAttributePathWhenDirtySetPoolExhausted(nlTestSuite * apSuite, void * apContext)
	{
	TestContext & ctx = static_cast<TestContext >(apContext);
	CHIP_ERROR err = CHIP_NO_ERROR;
	err = InteractionModelEngine::GetInstance()->Init(&ctx.GetExchangeManager(), &ctx.GetFabricTable(),
	app::reporting::GetDefaultReportScheduler());
	NL_TEST_ASSERT(apSuite, err == CHIP_NO_ERROR);

	InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ReleaseAll();
	InteractionModelEngine::GetInstance()->GetReportingEngine().BumpDirtySetGeneration();

	// Case 1: All dirty paths including the new one are under the same cluster.
	// -> Expected behavior: The dirty set is replaced by a wildcard attribute path under the same cluster.
	for (AttributeId i = 1; i <= CHIP_IM_SERVER_MAX_NUM_DIRTY_SET; i++)
	{
	NL_TEST_ASSERT(apSuite, InsertToDirtySet(AttributePathParams(kTestEndpointId, kTestClusterId, i)));
	}
	NL_TEST_ASSERT(apSuite,
	CHIP_NO_ERROR ==
	InteractionModelEngine::GetInstance()->GetReportingEngine().InsertPathIntoDirtySet(
	AttributePathParams(kTestEndpointId, kTestClusterId, CHIP_IM_SERVER_MAX_NUM_DIRTY_SET + 1)));
	NL_TEST_ASSERT(apSuite, VerifyDirtySetContent(AttributePathParams(kTestEndpointId, kTestClusterId)));

	InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ReleaseAll();

	// Case 2: All dirty paths including the new one are under the same endpoint.
	// -> Expected behavior: The dirty set is replaced by a wildcard cluster path under the same endpoint.
	for (ClusterId i = 1; i <= CHIP_IM_SERVER_MAX_NUM_DIRTY_SET; i++)
	{
	NL_TEST_ASSERT(apSuite, InsertToDirtySet(AttributePathParams(kTestEndpointId, i, 1)));
	}
	NL_TEST_ASSERT(apSuite,
	CHIP_NO_ERROR ==
	InteractionModelEngine::GetInstance()->GetReportingEngine().InsertPathIntoDirtySet(
	AttributePathParams(kTestEndpointId, ClusterId(CHIP_IM_SERVER_MAX_NUM_DIRTY_SET + 1), 1)));
	NL_TEST_ASSERT(apSuite, VerifyDirtySetContent(AttributePathParams(kTestEndpointId, kInvalidClusterId)));

	InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ReleaseAll();

	// Case 3: All dirty paths including the new one are under the different endpoints.
	// -> Expected behavior: The dirty set is replaced by a wildcard endpoint.
	for (EndpointId i = 1; i <= CHIP_IM_SERVER_MAX_NUM_DIRTY_SET; i++)
	{
	NL_TEST_ASSERT(apSuite, InsertToDirtySet(AttributePathParams(EndpointId(i), i, i)));
	}
	NL_TEST_ASSERT(apSuite,
	CHIP_NO_ERROR ==
	InteractionModelEngine::GetInstance()->GetReportingEngine().InsertPathIntoDirtySet(
	AttributePathParams(EndpointId(CHIP_IM_SERVER_MAX_NUM_DIRTY_SET + 1), 1, 1)));
	NL_TEST_ASSERT(apSuite, VerifyDirtySetContent(AttributePathParams()));

	InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ReleaseAll();

	// Case 4: All existing dirty paths are under the same cluster, the new path comes from another cluster.
	// -> Expected behavior: The existing paths are merged into one single wildcard attribute path. New path is inserted as-is.
	for (EndpointId i = 1; i <= CHIP_IM_SERVER_MAX_NUM_DIRTY_SET; i++)
	{
	NL_TEST_ASSERT(apSuite, InsertToDirtySet(AttributePathParams(kTestEndpointId, kTestClusterId, i)));
	}
	NL_TEST_ASSERT(apSuite,
	CHIP_NO_ERROR ==
	InteractionModelEngine::GetInstance()->GetReportingEngine().InsertPathIntoDirtySet(
	AttributePathParams(kTestEndpointId + 1, kTestClusterId + 1, 1)));
	NL_TEST_ASSERT(apSuite,
	VerifyDirtySetContent(AttributePathParams(kTestEndpointId, kTestClusterId),
	AttributePathParams(kTestEndpointId + 1, kTestClusterId + 1, 1)));

	InteractionModelEngine::GetInstance()->GetReportingEngine().mGlobalDirtySet.ReleaseAll();

	// Case 5: All existing dirty paths are under the same endpoint, the new path comes from another endpoint.
	// -> Expected behavior: The existing paths are merged into one single wildcard cluster path. New path is inserted as-is.
	for (EndpointId i = 1; i <= CHIP_IM_SERVER_MAX_NUM_DIRTY_SET; i++)
	{
	NL_TEST_ASSERT(apSuite, InsertToDirtySet(AttributePathParams(kTestEndpointId, i, 1)));
	}
	NL_TEST_ASSERT(apSuite,
	CHIP_NO_ERROR ==
	InteractionModelEngine::GetInstance()->GetReportingEngine().InsertPathIntoDirtySet(
	AttributePathParams(kTestEndpointId + 1, kTestClusterId + 1, 1)));
	NL_TEST_ASSERT(apSuite,
	VerifyDirtySetContent(AttributePathParams(kTestEndpointId, kInvalidClusterId),
	AttributePathParams(kTestEndpointId + 1, kTestClusterId + 1, 1)));

	InteractionModelEngine::GetInstance()->GetReportingEngine().Shutdown();
	}

	} // namespace reporting
	} // namespace app
	} // namespace chip

	namespace {
	// clang-format off
	const nlTest sTests[] =
	{
	NL_TEST_DEF("CheckBuildAndSendSingleReportData", chip::app::reporting::TestReportingEngine::TestBuildAndSendSingleReportData),
	NL_TEST_DEF("TestMergeOverlappedAttributePath", chip::app::reporting::TestReportingEngine::TestMergeOverlappedAttributePath),
	NL_TEST_DEF("TestMergeAttributePathWhenDirtySetPoolExhausted", chip::app::reporting::TestReportingEngine::TestMergeAttributePathWhenDirtySetPoolExhausted),
	NL_TEST_SENTINEL()
	};
	// clang-format on

	// clang-format off
	nlTestSuite sSuite =
	{
	"TestReportingEngine",
	&sTests[0],
	TestContext::nlTestSetUpTestSuite,
	TestContext::nlTestTearDownTestSuite,
	TestContext::nlTestSetUp,
	TestContext::nlTestTearDown,
	};
	// clang-format on

	} // namespace

	int TestReportingEngine()
	{
	return chip::ExecuteTestsWithContext<TestContext>(&sSuite);
	}

	CHIP_REGISTER_TEST_SUITE(TestReportingEngine)