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TestCommandInteraction.cpp
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/*
*
* 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 Command Interaction
*
*/
#include <cinttypes>
#include <optional>
#include <lib/core/StringBuilderAdapters.h>
#include <pw_unit_test/framework.h>
#include <app/AppConfig.h>
#include <app/CommandHandlerImpl.h>
#include <app/InteractionModelEngine.h>
#include <app/data-model/Encode.h>
#include <app/tests/AppTestContext.h>
#include <app/tests/test-interaction-model-api.h>
#include <lib/core/CHIPCore.h>
#include <lib/core/ErrorStr.h>
#include <lib/core/Optional.h>
#include <lib/core/TLV.h>
#include <lib/core/TLVDebug.h>
#include <lib/core/TLVUtilities.h>
#include <lib/support/logging/CHIPLogging.h>
#include <lib/support/tests/ExtraPwTestMacros.h>
#include <messaging/ExchangeContext.h>
#include <messaging/ExchangeMgr.h>
#include <messaging/Flags.h>
#include <platform/CHIPDeviceLayer.h>
#include <protocols/interaction_model/Constants.h>
#include <system/SystemPacketBuffer.h>
#include <system/TLVPacketBufferBackingStore.h>
using TestContext = chip::Test::AppContext;
using namespace chip::Protocols;
namespace {
void CheckForInvalidAction(chip::Test::MessageCapturer & messageLog)
{
EXPECT_EQ(messageLog.MessageCount(), 1u);
EXPECT_TRUE(messageLog.IsMessageType(0, chip::Protocols::InteractionModel::MsgType::StatusResponse));
CHIP_ERROR status;
EXPECT_EQ(chip::app::StatusResponse::ProcessStatusResponse(std::move(messageLog.MessagePayload(0)), status), CHIP_NO_ERROR);
EXPECT_EQ(status, CHIP_IM_GLOBAL_STATUS(InvalidAction));
}
} // anonymous namespace
namespace chip {
namespace {
bool isCommandDispatched = false;
size_t commandDispatchedCount = 0;
bool sendResponse = true;
bool asyncCommand = false;
constexpr EndpointId kTestEndpointId = 1;
constexpr ClusterId kTestClusterId = 3;
constexpr CommandId kTestCommandIdWithData = 4;
constexpr CommandId kTestCommandIdNoData = 5;
constexpr CommandId kTestCommandIdCommandSpecificResponse = 6;
constexpr CommandId kTestCommandIdFillResponseMessage = 7;
constexpr CommandId kTestNonExistCommandId = 0;
const app::CommandSender::TestOnlyMarker kCommandSenderTestOnlyMarker;
class SimpleTLVPayload : public app::DataModel::EncodableToTLV
{
public:
CHIP_ERROR EncodeTo(TLV::TLVWriter & aWriter, TLV::Tag aTag) const override
{
TLV::TLVType outerType;
ReturnErrorOnFailure(aWriter.StartContainer(aTag, TLV::kTLVType_Structure, outerType));
ReturnErrorOnFailure(aWriter.PutBoolean(chip::TLV::ContextTag(1), true));
return aWriter.EndContainer(outerType);
}
};
} // namespace
namespace app {
CommandHandler::Handle asyncCommandHandle;
enum class ForcedSizeBufferLengthHint
{
kSizeBetween0and255,
kSizeGreaterThan255,
};
class ForcedSizeBuffer : public app::DataModel::EncodableToTLV
{
public:
ForcedSizeBuffer(uint32_t size)
{
if (mBuffer.Alloc(size))
{
// No significance with using 0x12, just using a value.
memset(mBuffer.Get(), 0x12, size);
}
}
// No significance with using 0x12 as the CommandId, just using a value.
static constexpr chip::CommandId GetCommandId() { return 0x12; }
CHIP_ERROR EncodeTo(TLV::TLVWriter & aWriter, TLV::Tag aTag) const override
{
VerifyOrReturnError(mBuffer, CHIP_ERROR_NO_MEMORY);
TLV::TLVType outerContainerType;
ReturnErrorOnFailure(aWriter.StartContainer(aTag, TLV::kTLVType_Structure, outerContainerType));
ReturnErrorOnFailure(app::DataModel::Encode(aWriter, TLV::ContextTag(1), ByteSpan(mBuffer.Get(), mBuffer.AllocatedSize())));
return aWriter.EndContainer(outerContainerType);
}
private:
chip::Platform::ScopedMemoryBufferWithSize<uint8_t> mBuffer;
};
struct Fields
{
static constexpr chip::CommandId GetCommandId() { return 4; }
CHIP_ERROR Encode(TLV::TLVWriter & aWriter, TLV::Tag aTag) const
{
TLV::TLVType outerContainerType;
ReturnErrorOnFailure(aWriter.StartContainer(aTag, TLV::kTLVType_Structure, outerContainerType));
ReturnErrorOnFailure(aWriter.PutBoolean(TLV::ContextTag(1), true));
return aWriter.EndContainer(outerContainerType);
}
};
struct BadFields
{
static constexpr chip::CommandId GetCommandId() { return 4; }
CHIP_ERROR Encode(TLV::TLVWriter & aWriter, TLV::Tag aTag) const
{
TLV::TLVType outerContainerType;
uint8_t data[36] = { 0 };
ReturnErrorOnFailure(aWriter.StartContainer(aTag, TLV::kTLVType_Structure, outerContainerType));
// Just encode something bad to return a failure state here.
for (uint8_t i = 1; i < UINT8_MAX; i++)
{
ReturnErrorOnFailure(app::DataModel::Encode(aWriter, TLV::ContextTag(i), ByteSpan(data)));
}
return aWriter.EndContainer(outerContainerType);
}
};
InteractionModel::Status ServerClusterCommandExists(const ConcreteCommandPath & aRequestCommandPath)
{
// Mock cluster catalog, only support commands on one cluster on one endpoint.
using InteractionModel::Status;
if (aRequestCommandPath.mEndpointId != kTestEndpointId)
{
return Status::UnsupportedEndpoint;
}
if (aRequestCommandPath.mClusterId != kTestClusterId)
{
return Status::UnsupportedCluster;
}
if (aRequestCommandPath.mCommandId == kTestNonExistCommandId)
{
return Status::UnsupportedCommand;
}
return Status::Success;
}
void DispatchSingleClusterCommand(const ConcreteCommandPath & aRequestCommandPath, chip::TLV::TLVReader & aReader,
CommandHandler * apCommandObj)
{
ChipLogDetail(Controller, "Received Cluster Command: Endpoint=%x Cluster=" ChipLogFormatMEI " Command=" ChipLogFormatMEI,
aRequestCommandPath.mEndpointId, ChipLogValueMEI(aRequestCommandPath.mClusterId),
ChipLogValueMEI(aRequestCommandPath.mCommandId));
// Duplicate what our normal command-field-decode code does, in terms of
// checking for a struct and then entering it before getting the fields.
if (aReader.GetType() != TLV::kTLVType_Structure)
{
apCommandObj->AddStatus(aRequestCommandPath, Protocols::InteractionModel::Status::InvalidAction);
return;
}
TLV::TLVType outerContainerType;
EXPECT_EQ(aReader.EnterContainer(outerContainerType), CHIP_NO_ERROR);
CHIP_ERROR err = aReader.Next();
if (aRequestCommandPath.mCommandId == kTestCommandIdNoData)
{
EXPECT_EQ(err, CHIP_ERROR_END_OF_TLV);
}
else
{
EXPECT_EQ(err, CHIP_NO_ERROR);
EXPECT_EQ(aReader.GetTag(), TLV::ContextTag(1));
bool val;
EXPECT_EQ(aReader.Get(val), CHIP_NO_ERROR);
EXPECT_TRUE(val);
}
EXPECT_EQ(aReader.ExitContainer(outerContainerType), CHIP_NO_ERROR);
if (asyncCommand)
{
asyncCommandHandle = apCommandObj;
asyncCommand = false;
}
if (sendResponse)
{
if (aRequestCommandPath.mCommandId == kTestCommandIdNoData || aRequestCommandPath.mCommandId == kTestCommandIdWithData)
{
apCommandObj->AddStatus(aRequestCommandPath, Protocols::InteractionModel::Status::Success);
}
else
{
SimpleTLVPayload payloadWriter;
apCommandObj->AddResponse(aRequestCommandPath, aRequestCommandPath.mCommandId, payloadWriter);
}
}
chip::isCommandDispatched = true;
commandDispatchedCount++;
}
class MockCommandSenderCallback : public CommandSender::Callback
{
public:
void OnResponse(chip::app::CommandSender * apCommandSender, const chip::app::ConcreteCommandPath & aPath,
const chip::app::StatusIB & aStatus, chip::TLV::TLVReader * aData) override
{
IgnoreUnusedVariable(apCommandSender);
IgnoreUnusedVariable(aData);
ChipLogDetail(Controller, "Received Cluster Command: Cluster=%" PRIx32 " Command=%" PRIx32 " Endpoint=%x", aPath.mClusterId,
aPath.mCommandId, aPath.mEndpointId);
onResponseCalledTimes++;
}
void OnError(const chip::app::CommandSender * apCommandSender, CHIP_ERROR aError) override
{
ChipLogError(Controller, "OnError happens with %" CHIP_ERROR_FORMAT, aError.Format());
mError = aError;
onErrorCalledTimes++;
mError = aError;
}
void OnDone(chip::app::CommandSender * apCommandSender) override { onFinalCalledTimes++; }
void ResetCounter()
{
onResponseCalledTimes = 0;
onErrorCalledTimes = 0;
onFinalCalledTimes = 0;
}
int onResponseCalledTimes = 0;
int onErrorCalledTimes = 0;
int onFinalCalledTimes = 0;
CHIP_ERROR mError = CHIP_NO_ERROR;
} mockCommandSenderDelegate;
class MockCommandSenderExtendableCallback : public CommandSender::ExtendableCallback
{
public:
void OnResponse(CommandSender * apCommandSender, const CommandSender::ResponseData & aResponseData) override
{
IgnoreUnusedVariable(apCommandSender);
ChipLogDetail(Controller, "Received response for command: Cluster=%" PRIx32 " Command=%" PRIx32 " Endpoint=%x",
aResponseData.path.mClusterId, aResponseData.path.mCommandId, aResponseData.path.mEndpointId);
onResponseCalledTimes++;
}
void OnNoResponse(CommandSender * commandSender, const CommandSender::NoResponseData & aNoResponseData) override
{
ChipLogError(Controller, "NoResponse received for command associated with CommandRef %u", aNoResponseData.commandRef);
onNoResponseCalledTimes++;
}
void OnError(const CommandSender * apCommandSender, const CommandSender::ErrorData & aErrorData) override
{
ChipLogError(Controller, "OnError happens with %" CHIP_ERROR_FORMAT, aErrorData.error.Format());
mError = aErrorData.error;
onErrorCalledTimes++;
}
void OnDone(CommandSender * apCommandSender) override { onFinalCalledTimes++; }
void ResetCounter()
{
onResponseCalledTimes = 0;
onNoResponseCalledTimes = 0;
onErrorCalledTimes = 0;
onFinalCalledTimes = 0;
}
int onResponseCalledTimes = 0;
int onNoResponseCalledTimes = 0;
int onErrorCalledTimes = 0;
int onFinalCalledTimes = 0;
CHIP_ERROR mError = CHIP_NO_ERROR;
} mockCommandSenderExtendedDelegate;
class MockCommandResponder : public CommandHandlerExchangeInterface
{
public:
Messaging::ExchangeContext * GetExchangeContext() const override { return nullptr; }
void HandlingSlowCommand() override {}
Access::SubjectDescriptor GetSubjectDescriptor() const override { return Access::SubjectDescriptor(); }
FabricIndex GetAccessingFabricIndex() const override { return kUndefinedFabricIndex; }
Optional<GroupId> GetGroupId() const override { return NullOptional; }
void AddInvokeResponseToSend(System::PacketBufferHandle && aPacket) override { mChunks.AddToEnd(std::move(aPacket)); }
void ResponseDropped() override { mResponseDropped = true; }
System::PacketBufferHandle mChunks;
bool mResponseDropped = false;
};
class MockCommandHandlerCallback : public CommandHandlerImpl::Callback
{
public:
void OnDone(CommandHandlerImpl & apCommandHandler) final { onFinalCalledTimes++; }
void DispatchCommand(CommandHandlerImpl & apCommandObj, const ConcreteCommandPath & aCommandPath,
TLV::TLVReader & apPayload) final
{
DispatchSingleClusterCommand(aCommandPath, apPayload, &apCommandObj);
}
InteractionModel::Status CommandExists(const ConcreteCommandPath & aCommandPath)
{
return ServerClusterCommandExists(aCommandPath);
}
void ResetCounter() { onFinalCalledTimes = 0; }
int onFinalCalledTimes = 0;
} mockCommandHandlerDelegate;
class TestCommandInteraction : public ::testing::Test
{
public:
static void SetUpTestSuite()
{
mpTestContext = new TestContext;
mpTestContext->SetUpTestSuite();
}
static void TearDownTestSuite()
{
mpTestContext->TearDownTestSuite();
delete mpTestContext;
}
void SetUp() override { mpTestContext->SetUp(); }
void TearDown() override { mpTestContext->TearDown(); }
static TestContext * mpTestContext;
static size_t GetNumActiveCommandResponderObjects()
{
return chip::app::InteractionModelEngine::GetInstance()->mCommandResponderObjs.Allocated();
}
void TestCommandInvalidMessage1();
void TestCommandInvalidMessage2();
void TestCommandInvalidMessage3();
void TestCommandInvalidMessage4();
void TestCommandSender_WithSendCommand();
void TestCommandSender_WithProcessReceivedMsg();
void TestCommandSender_ExtendableApiWithProcessReceivedMsg();
void TestCommandSender_ExtendableApiWithProcessReceivedMsgContainingInvalidCommandRef();
void TestCommandSender_ValidateSecondLargeAddRequestDataRollbacked();
void TestCommandHandler_WithoutResponderCallingAddStatus();
void TestCommandHandler_WithoutResponderCallingAddResponse();
void TestCommandHandler_WithoutResponderCallingDirectPrepareFinishCommandApis();
void TestCommandHandler_RejectsMultipleCommandsWithIdenticalCommandRef();
void TestCommandHandler_RejectMultipleCommandsWhenHandlerOnlySupportsOne();
void TestCommandHandler_AcceptMultipleCommands();
void TestCommandHandler_FillUpInvokeResponseMessageWhereSecondResponseIsStatusResponse();
void TestCommandHandler_FillUpInvokeResponseMessageWhereSecondResponseIsDataResponsePrimative();
void TestCommandHandler_FillUpInvokeResponseMessageWhereSecondResponseIsDataResponse();
void TestCommandHandler_ReleaseWithExchangeClosed();
/**
* With the introduction of batch invoke commands, CommandHandler keeps track of incoming
* ConcreteCommandPath and the associated CommandRefs. These are normally populated
* as part of OnInvokeCommandRequest from the incoming request. For some unit tests where
* we want to test APIs that cluster code uses, we need to inject entries into the
* CommandPathRegistry directly.
*/
class CommandHandlerWithUnrespondedCommand : public app::CommandHandlerImpl
{
public:
CommandHandlerWithUnrespondedCommand(CommandHandlerImpl::Callback * apCallback,
const ConcreteCommandPath & aRequestCommandPath, const Optional<uint16_t> & aRef) :
CommandHandlerImpl(apCallback)
{
GetCommandPathRegistry().Add(aRequestCommandPath, aRef.std_optional());
SetExchangeInterface(&mMockCommandResponder);
}
MockCommandResponder mMockCommandResponder;
using app::CommandHandler::AddResponse;
};
// Generate an invoke request. If aCommandId is kTestCommandIdWithData, a
// payload will be included. Otherwise no payload will be included.
static void GenerateInvokeRequest(System::PacketBufferHandle & aPayload, bool aIsTimedRequest, CommandId aCommandId,
ClusterId aClusterId = kTestClusterId, EndpointId aEndpointId = kTestEndpointId);
// Generate an invoke response. If aCommandId is kTestCommandIdWithData, a
// payload will be included. Otherwise no payload will be included.
static void GenerateInvokeResponse(System::PacketBufferHandle & aPayload, CommandId aCommandId,
ClusterId aClusterId = kTestClusterId, EndpointId aEndpointId = kTestEndpointId,
std::optional<uint16_t> aCommandRef = std::nullopt);
static void AddInvokeRequestData(CommandSender * apCommandSender, CommandId aCommandId = kTestCommandIdWithData);
static void AddInvalidInvokeRequestData(CommandSender * apCommandSender, CommandId aCommandId = kTestCommandIdWithData);
static void AddInvokeResponseData(CommandHandler * apCommandHandler, bool aNeedStatusCode,
CommandId aResponseCommandId = kTestCommandIdWithData,
CommandId aRequestCommandId = kTestCommandIdWithData);
static uint32_t GetAddResponseDataOverheadSizeForPath(const ConcreteCommandPath & aRequestCommandPath,
ForcedSizeBufferLengthHint aBufferSizeHint);
static void FillCurrentInvokeResponseBuffer(CommandHandlerImpl * apCommandHandler,
const ConcreteCommandPath & aRequestCommandPath, uint32_t aSizeToLeaveInBuffer);
static void ValidateCommandHandlerEncodeInvokeResponseMessage(bool aNeedStatusCode);
};
TestContext * TestCommandInteraction::mpTestContext = nullptr;
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 {}
};
CommandPathParams MakeTestCommandPath(CommandId aCommandId = kTestCommandIdWithData)
{
return CommandPathParams(kTestEndpointId, 0, kTestClusterId, aCommandId, (chip::app::CommandPathFlags::kEndpointIdValid));
}
void TestCommandInteraction::GenerateInvokeRequest(System::PacketBufferHandle & aPayload, bool aIsTimedRequest,
CommandId aCommandId, ClusterId aClusterId, EndpointId aEndpointId)
{
InvokeRequestMessage::Builder invokeRequestMessageBuilder;
System::PacketBufferTLVWriter writer;
writer.Init(std::move(aPayload));
EXPECT_EQ(invokeRequestMessageBuilder.Init(&writer), CHIP_NO_ERROR);
invokeRequestMessageBuilder.SuppressResponse(true).TimedRequest(aIsTimedRequest);
InvokeRequests::Builder & invokeRequests = invokeRequestMessageBuilder.CreateInvokeRequests();
ASSERT_EQ(invokeRequestMessageBuilder.GetError(), CHIP_NO_ERROR);
CommandDataIB::Builder & commandDataIBBuilder = invokeRequests.CreateCommandData();
EXPECT_EQ(invokeRequests.GetError(), CHIP_NO_ERROR);
CommandPathIB::Builder & commandPathBuilder = commandDataIBBuilder.CreatePath();
EXPECT_EQ(commandDataIBBuilder.GetError(), CHIP_NO_ERROR);
commandPathBuilder.EndpointId(aEndpointId).ClusterId(aClusterId).CommandId(aCommandId).EndOfCommandPathIB();
EXPECT_EQ(commandPathBuilder.GetError(), CHIP_NO_ERROR);
if (aCommandId == kTestCommandIdWithData)
{
chip::TLV::TLVWriter * pWriter = commandDataIBBuilder.GetWriter();
chip::TLV::TLVType dummyType = chip::TLV::kTLVType_NotSpecified;
EXPECT_EQ(pWriter->StartContainer(chip::TLV::ContextTag(chip::to_underlying(CommandDataIB::Tag::kFields)),
chip::TLV::kTLVType_Structure, dummyType),
CHIP_NO_ERROR);
EXPECT_EQ(pWriter->PutBoolean(chip::TLV::ContextTag(1), true), CHIP_NO_ERROR);
EXPECT_EQ(pWriter->EndContainer(dummyType), CHIP_NO_ERROR);
}
commandDataIBBuilder.EndOfCommandDataIB();
EXPECT_EQ(commandDataIBBuilder.GetError(), CHIP_NO_ERROR);
invokeRequests.EndOfInvokeRequests();
EXPECT_EQ(invokeRequests.GetError(), CHIP_NO_ERROR);
invokeRequestMessageBuilder.EndOfInvokeRequestMessage();
ASSERT_EQ(invokeRequestMessageBuilder.GetError(), CHIP_NO_ERROR);
EXPECT_EQ(writer.Finalize(&aPayload), CHIP_NO_ERROR);
}
void TestCommandInteraction::GenerateInvokeResponse(System::PacketBufferHandle & aPayload, CommandId aCommandId,
ClusterId aClusterId, EndpointId aEndpointId,
std::optional<uint16_t> aCommandRef)
{
InvokeResponseMessage::Builder invokeResponseMessageBuilder;
System::PacketBufferTLVWriter writer;
writer.Init(std::move(aPayload));
EXPECT_EQ(invokeResponseMessageBuilder.Init(&writer), CHIP_NO_ERROR);
invokeResponseMessageBuilder.SuppressResponse(true);
InvokeResponseIBs::Builder & invokeResponses = invokeResponseMessageBuilder.CreateInvokeResponses();
EXPECT_EQ(invokeResponseMessageBuilder.GetError(), CHIP_NO_ERROR);
InvokeResponseIB::Builder & invokeResponseIBBuilder = invokeResponses.CreateInvokeResponse();
EXPECT_EQ(invokeResponses.GetError(), CHIP_NO_ERROR);
CommandDataIB::Builder & commandDataIBBuilder = invokeResponseIBBuilder.CreateCommand();
EXPECT_EQ(commandDataIBBuilder.GetError(), CHIP_NO_ERROR);
CommandPathIB::Builder & commandPathBuilder = commandDataIBBuilder.CreatePath();
EXPECT_EQ(commandDataIBBuilder.GetError(), CHIP_NO_ERROR);
commandPathBuilder.EndpointId(aEndpointId).ClusterId(aClusterId).CommandId(aCommandId).EndOfCommandPathIB();
EXPECT_EQ(commandPathBuilder.GetError(), CHIP_NO_ERROR);
if (aCommandId == kTestCommandIdWithData)
{
chip::TLV::TLVWriter * pWriter = commandDataIBBuilder.GetWriter();
chip::TLV::TLVType dummyType = chip::TLV::kTLVType_NotSpecified;
EXPECT_EQ(pWriter->StartContainer(chip::TLV::ContextTag(chip::to_underlying(CommandDataIB::Tag::kFields)),
chip::TLV::kTLVType_Structure, dummyType),
CHIP_NO_ERROR);
EXPECT_EQ(pWriter->PutBoolean(chip::TLV::ContextTag(1), true), CHIP_NO_ERROR);
EXPECT_EQ(pWriter->EndContainer(dummyType), CHIP_NO_ERROR);
}
if (aCommandRef.has_value())
{
EXPECT_EQ(commandDataIBBuilder.Ref(*aCommandRef), CHIP_NO_ERROR);
}
commandDataIBBuilder.EndOfCommandDataIB();
EXPECT_EQ(commandDataIBBuilder.GetError(), CHIP_NO_ERROR);
invokeResponseIBBuilder.EndOfInvokeResponseIB();
EXPECT_EQ(invokeResponseIBBuilder.GetError(), CHIP_NO_ERROR);
invokeResponses.EndOfInvokeResponses();
EXPECT_EQ(invokeResponses.GetError(), CHIP_NO_ERROR);
invokeResponseMessageBuilder.EndOfInvokeResponseMessage();
EXPECT_EQ(invokeResponseMessageBuilder.GetError(), CHIP_NO_ERROR);
EXPECT_EQ(writer.Finalize(&aPayload), CHIP_NO_ERROR);
}
void TestCommandInteraction::AddInvokeRequestData(CommandSender * apCommandSender, CommandId aCommandId)
{
auto commandPathParams = MakeTestCommandPath(aCommandId);
EXPECT_EQ(apCommandSender->PrepareCommand(commandPathParams), CHIP_NO_ERROR);
chip::TLV::TLVWriter * writer = apCommandSender->GetCommandDataIBTLVWriter();
EXPECT_EQ(writer->PutBoolean(chip::TLV::ContextTag(1), true), CHIP_NO_ERROR);
EXPECT_EQ(apCommandSender->FinishCommand(), CHIP_NO_ERROR);
}
void TestCommandInteraction::AddInvalidInvokeRequestData(CommandSender * apCommandSender, CommandId aCommandId)
{
auto commandPathParams = MakeTestCommandPath(aCommandId);
EXPECT_EQ(apCommandSender->PrepareCommand(commandPathParams), CHIP_NO_ERROR);
chip::TLV::TLVWriter * writer = apCommandSender->GetCommandDataIBTLVWriter();
EXPECT_EQ(writer->PutBoolean(chip::TLV::ContextTag(1), true), CHIP_NO_ERROR);
apCommandSender->MoveToState(CommandSender::State::AddedCommand);
}
void TestCommandInteraction::AddInvokeResponseData(CommandHandler * apCommandHandler, bool aNeedStatusCode,
CommandId aResponseCommandId, CommandId aRequestCommandId)
{
constexpr EndpointId kTestEndpointId = 1;
constexpr ClusterId kTestClusterId = 3;
ConcreteCommandPath requestCommandPath = { kTestEndpointId, kTestClusterId, aRequestCommandId };
if (aNeedStatusCode)
{
apCommandHandler->AddStatus(requestCommandPath, Protocols::InteractionModel::Status::Success);
}
else
{
SimpleTLVPayload payloadWriter;
EXPECT_EQ(apCommandHandler->AddResponseData(requestCommandPath, aResponseCommandId, payloadWriter), CHIP_NO_ERROR);
}
}
uint32_t TestCommandInteraction::GetAddResponseDataOverheadSizeForPath(const ConcreteCommandPath & aRequestCommandPath,
ForcedSizeBufferLengthHint aBufferSizeHint)
{
BasicCommandPathRegistry<4> basicCommandPathRegistry;
MockCommandResponder mockCommandResponder;
CommandHandlerImpl::TestOnlyOverrides testOnlyOverrides{ &basicCommandPathRegistry, &mockCommandResponder };
CommandHandlerImpl commandHandler(testOnlyOverrides, &mockCommandHandlerDelegate);
commandHandler.mReserveSpaceForMoreChunkMessages = true;
ConcreteCommandPath requestCommandPath1 = { kTestEndpointId, kTestClusterId, kTestCommandIdFillResponseMessage };
ConcreteCommandPath requestCommandPath2 = { kTestEndpointId, kTestClusterId, kTestCommandIdCommandSpecificResponse };
EXPECT_EQ(basicCommandPathRegistry.Add(requestCommandPath1, std::make_optional<uint16_t>(static_cast<uint16_t>(1))),
CHIP_NO_ERROR);
EXPECT_EQ(basicCommandPathRegistry.Add(requestCommandPath2, std::make_optional<uint16_t>(static_cast<uint16_t>(2))),
CHIP_NO_ERROR);
EXPECT_EQ(commandHandler.AllocateBuffer(), CHIP_NO_ERROR);
uint32_t remainingSizeBefore = commandHandler.mInvokeResponseBuilder.GetWriter()->GetRemainingFreeLength();
// When ForcedSizeBuffer exceeds 255, an extra byte is needed for length, affecting the overhead size required by
// AddResponseData. In order to have this accounted for in overhead calculation we set the length to be 256.
uint32_t sizeOfForcedSizeBuffer = aBufferSizeHint == ForcedSizeBufferLengthHint::kSizeGreaterThan255 ? 256 : 0;
ForcedSizeBuffer responseData(sizeOfForcedSizeBuffer);
EXPECT_EQ(commandHandler.AddResponseData(aRequestCommandPath, responseData.GetCommandId(), responseData), CHIP_NO_ERROR);
uint32_t remainingSizeAfter = commandHandler.mInvokeResponseBuilder.GetWriter()->GetRemainingFreeLength();
uint32_t delta = remainingSizeBefore - remainingSizeAfter - sizeOfForcedSizeBuffer;
return delta;
}
void TestCommandInteraction::FillCurrentInvokeResponseBuffer(CommandHandlerImpl * apCommandHandler,
const ConcreteCommandPath & aRequestCommandPath,
uint32_t aSizeToLeaveInBuffer)
{
EXPECT_EQ(apCommandHandler->AllocateBuffer(), CHIP_NO_ERROR);
uint32_t remainingSize = apCommandHandler->mInvokeResponseBuilder.GetWriter()->GetRemainingFreeLength();
// AddResponseData's overhead calculation depends on the size of ForcedSizeBuffer. If the buffer exceeds 255 bytes, an extra
// length byte is required. Since tests using FillCurrentInvokeResponseBuffer currently end up with sizeToFill > 255, we
// inform the calculation of this expectation. Nonetheless, we also validate this assumption for correctness.
ForcedSizeBufferLengthHint bufferSizeHint = ForcedSizeBufferLengthHint::kSizeGreaterThan255;
uint32_t overheadSizeNeededForAddingResponse = GetAddResponseDataOverheadSizeForPath(aRequestCommandPath, bufferSizeHint);
EXPECT_GT(remainingSize, (aSizeToLeaveInBuffer + overheadSizeNeededForAddingResponse));
uint32_t sizeToFill = remainingSize - aSizeToLeaveInBuffer - overheadSizeNeededForAddingResponse;
// Validating assumption. If this fails, it means overheadSizeNeededForAddingResponse is likely too large.
EXPECT_GE(sizeToFill, 256u);
ForcedSizeBuffer responseData(sizeToFill);
EXPECT_EQ(apCommandHandler->AddResponseData(aRequestCommandPath, responseData.GetCommandId(), responseData), CHIP_NO_ERROR);
}
void TestCommandInteraction::ValidateCommandHandlerEncodeInvokeResponseMessage(bool aNeedStatusCode)
{
chip::app::ConcreteCommandPath requestCommandPath(kTestEndpointId, kTestClusterId, kTestCommandIdWithData);
CommandHandlerWithUnrespondedCommand commandHandler(&mockCommandHandlerDelegate, requestCommandPath,
/* aRef = */ NullOptional);
{
// This simulates how cluster would call CommandHandler APIs synchronously. There would
// be handle already acquired on the callers behalf.
CommandHandler::Handle handle(&commandHandler);
AddInvokeResponseData(&commandHandler, aNeedStatusCode);
}
EXPECT_FALSE(commandHandler.mMockCommandResponder.mChunks.IsNull());
}
// Command Sender sends invoke request, command handler drops invoke response, then test injects status response message with
// busy to client, client sends out a status response with invalid action.
TEST_F_FROM_FIXTURE(TestCommandInteraction, TestCommandInvalidMessage1)
{
mockCommandSenderDelegate.ResetCounter();
app::CommandSender commandSender(&mockCommandSenderDelegate, &mpTestContext->GetExchangeManager());
AddInvokeRequestData(&commandSender);
asyncCommand = false;
mpTestContext->GetLoopback().mSentMessageCount = 0;
mpTestContext->GetLoopback().mNumMessagesToDrop = 1;
mpTestContext->GetLoopback().mNumMessagesToAllowBeforeDropping = 1;
EXPECT_EQ(commandSender.SendCommandRequest(mpTestContext->GetSessionBobToAlice()), CHIP_NO_ERROR);
mpTestContext->DrainAndServiceIO();
EXPECT_EQ(mpTestContext->GetLoopback().mSentMessageCount, 2u);
EXPECT_EQ(mpTestContext->GetLoopback().mDroppedMessageCount, 1u);
EXPECT_EQ(mockCommandSenderDelegate.onResponseCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onFinalCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onErrorCalledTimes, 0);
EXPECT_EQ(GetNumActiveCommandResponderObjects(), 0u);
System::PacketBufferHandle msgBuf = System::PacketBufferHandle::New(kMaxSecureSduLengthBytes);
ASSERT_FALSE(msgBuf.IsNull());
System::PacketBufferTLVWriter writer;
writer.Init(std::move(msgBuf));
StatusResponseMessage::Builder response;
response.Init(&writer);
response.Status(Protocols::InteractionModel::Status::Busy);
EXPECT_EQ(writer.Finalize(&msgBuf), CHIP_NO_ERROR);
PayloadHeader payloadHeader;
payloadHeader.SetExchangeID(0);
payloadHeader.SetMessageType(chip::Protocols::InteractionModel::MsgType::StatusResponse);
chip::Test::MessageCapturer messageLog(*mpTestContext);
messageLog.mCaptureStandaloneAcks = false;
// Since we are dropping packets, things are not getting acked. Set up our
// MRP state to look like what it would have looked like if the packet had
// not gotten dropped.
PretendWeGotReplyFromServer(*mpTestContext, commandSender.mExchangeCtx.Get());
mpTestContext->GetLoopback().mSentMessageCount = 0;
mpTestContext->GetLoopback().mNumMessagesToDrop = 0;
mpTestContext->GetLoopback().mNumMessagesToAllowBeforeDropping = 0;
mpTestContext->GetLoopback().mDroppedMessageCount = 0;
EXPECT_EQ(commandSender.OnMessageReceived(commandSender.mExchangeCtx.Get(), payloadHeader, std::move(msgBuf)),
CHIP_IM_GLOBAL_STATUS(Busy));
EXPECT_EQ(mockCommandSenderDelegate.mError, CHIP_IM_GLOBAL_STATUS(Busy));
EXPECT_EQ(mockCommandSenderDelegate.onResponseCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onFinalCalledTimes, 1);
EXPECT_EQ(mockCommandSenderDelegate.onErrorCalledTimes, 1);
EXPECT_EQ(commandSender.GetInvokeResponseMessageCount(), 0u);
mpTestContext->DrainAndServiceIO();
// Client sent status report with invalid action, server's exchange has been closed, so all it sent is an MRP Ack
EXPECT_EQ(mpTestContext->GetLoopback().mSentMessageCount, 2u);
CheckForInvalidAction(messageLog);
EXPECT_EQ(GetNumActiveCommandResponderObjects(), 0u);
mpTestContext->ExpireSessionAliceToBob();
mpTestContext->ExpireSessionBobToAlice();
mpTestContext->CreateSessionAliceToBob();
mpTestContext->CreateSessionBobToAlice();
}
// Command Sender sends invoke request, command handler drops invoke response, then test injects unknown message to client,
// client sends out status response with invalid action.
TEST_F_FROM_FIXTURE(TestCommandInteraction, TestCommandInvalidMessage2)
{
mockCommandSenderDelegate.ResetCounter();
app::CommandSender commandSender(&mockCommandSenderDelegate, &mpTestContext->GetExchangeManager());
AddInvokeRequestData(&commandSender);
asyncCommand = false;
mpTestContext->GetLoopback().mSentMessageCount = 0;
mpTestContext->GetLoopback().mNumMessagesToDrop = 1;
mpTestContext->GetLoopback().mNumMessagesToAllowBeforeDropping = 1;
EXPECT_EQ(commandSender.SendCommandRequest(mpTestContext->GetSessionBobToAlice()), CHIP_NO_ERROR);
mpTestContext->DrainAndServiceIO();
EXPECT_EQ(mpTestContext->GetLoopback().mSentMessageCount, 2u);
EXPECT_EQ(mpTestContext->GetLoopback().mDroppedMessageCount, 1u);
EXPECT_EQ(mockCommandSenderDelegate.onResponseCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onFinalCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onErrorCalledTimes, 0);
EXPECT_EQ(GetNumActiveCommandResponderObjects(), 0u);
System::PacketBufferHandle msgBuf = System::PacketBufferHandle::New(kMaxSecureSduLengthBytes);
ASSERT_FALSE(msgBuf.IsNull());
System::PacketBufferTLVWriter writer;
writer.Init(std::move(msgBuf));
ReportDataMessage::Builder response;
response.Init(&writer);
EXPECT_EQ(writer.Finalize(&msgBuf), CHIP_NO_ERROR);
PayloadHeader payloadHeader;
payloadHeader.SetExchangeID(0);
payloadHeader.SetMessageType(chip::Protocols::InteractionModel::MsgType::ReportData);
chip::Test::MessageCapturer messageLog(*mpTestContext);
messageLog.mCaptureStandaloneAcks = false;
// Since we are dropping packets, things are not getting acked. Set up our
// MRP state to look like what it would have looked like if the packet had
// not gotten dropped.
PretendWeGotReplyFromServer(*mpTestContext, commandSender.mExchangeCtx.Get());
mpTestContext->GetLoopback().mSentMessageCount = 0;
mpTestContext->GetLoopback().mNumMessagesToDrop = 0;
mpTestContext->GetLoopback().mNumMessagesToAllowBeforeDropping = 0;
mpTestContext->GetLoopback().mDroppedMessageCount = 0;
EXPECT_EQ(commandSender.OnMessageReceived(commandSender.mExchangeCtx.Get(), payloadHeader, std::move(msgBuf)),
CHIP_ERROR_INVALID_MESSAGE_TYPE);
EXPECT_EQ(mockCommandSenderDelegate.mError, CHIP_ERROR_INVALID_MESSAGE_TYPE);
EXPECT_EQ(mockCommandSenderDelegate.onResponseCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onFinalCalledTimes, 1);
EXPECT_EQ(mockCommandSenderDelegate.onErrorCalledTimes, 1);
mpTestContext->DrainAndServiceIO();
// Client sent status report with invalid action, server's exchange has been closed, so all it sent is an MRP Ack
EXPECT_EQ(mpTestContext->GetLoopback().mSentMessageCount, 2u);
CheckForInvalidAction(messageLog);
EXPECT_EQ(GetNumActiveCommandResponderObjects(), 0u);
mpTestContext->ExpireSessionAliceToBob();
mpTestContext->ExpireSessionBobToAlice();
mpTestContext->CreateSessionAliceToBob();
mpTestContext->CreateSessionBobToAlice();
}
// Command Sender sends invoke request, command handler drops invoke response, then test injects malformed invoke response
// message to client, client sends out status response with invalid action.
TEST_F_FROM_FIXTURE(TestCommandInteraction, TestCommandInvalidMessage3)
{
mockCommandSenderDelegate.ResetCounter();
app::CommandSender commandSender(&mockCommandSenderDelegate, &mpTestContext->GetExchangeManager());
AddInvokeRequestData(&commandSender);
asyncCommand = false;
mpTestContext->GetLoopback().mSentMessageCount = 0;
mpTestContext->GetLoopback().mNumMessagesToDrop = 1;
mpTestContext->GetLoopback().mNumMessagesToAllowBeforeDropping = 1;
EXPECT_EQ(commandSender.SendCommandRequest(mpTestContext->GetSessionBobToAlice()), CHIP_NO_ERROR);
mpTestContext->DrainAndServiceIO();
EXPECT_EQ(mpTestContext->GetLoopback().mSentMessageCount, 2u);
EXPECT_EQ(mpTestContext->GetLoopback().mDroppedMessageCount, 1u);
EXPECT_EQ(mockCommandSenderDelegate.onResponseCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onFinalCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onErrorCalledTimes, 0);
EXPECT_EQ(GetNumActiveCommandResponderObjects(), 0u);
System::PacketBufferHandle msgBuf = System::PacketBufferHandle::New(kMaxSecureSduLengthBytes);
ASSERT_FALSE(msgBuf.IsNull());
System::PacketBufferTLVWriter writer;
writer.Init(std::move(msgBuf));
InvokeResponseMessage::Builder response;
response.Init(&writer);
EXPECT_EQ(writer.Finalize(&msgBuf), CHIP_NO_ERROR);
PayloadHeader payloadHeader;
payloadHeader.SetExchangeID(0);
payloadHeader.SetMessageType(chip::Protocols::InteractionModel::MsgType::InvokeCommandResponse);
chip::Test::MessageCapturer messageLog(*mpTestContext);
messageLog.mCaptureStandaloneAcks = false;
// Since we are dropping packets, things are not getting acked. Set up our
// MRP state to look like what it would have looked like if the packet had
// not gotten dropped.
PretendWeGotReplyFromServer(*mpTestContext, commandSender.mExchangeCtx.Get());
mpTestContext->GetLoopback().mSentMessageCount = 0;
mpTestContext->GetLoopback().mNumMessagesToDrop = 0;
mpTestContext->GetLoopback().mNumMessagesToAllowBeforeDropping = 0;
mpTestContext->GetLoopback().mDroppedMessageCount = 0;
EXPECT_EQ(commandSender.OnMessageReceived(commandSender.mExchangeCtx.Get(), payloadHeader, std::move(msgBuf)),
CHIP_ERROR_END_OF_TLV);
EXPECT_EQ(mockCommandSenderDelegate.mError, CHIP_ERROR_END_OF_TLV);
EXPECT_EQ(mockCommandSenderDelegate.onResponseCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onFinalCalledTimes, 1);
EXPECT_EQ(mockCommandSenderDelegate.onErrorCalledTimes, 1);
mpTestContext->DrainAndServiceIO();
// Client sent status report with invalid action, server's exchange has been closed, so all it sent is an MRP Ack
EXPECT_EQ(mpTestContext->GetLoopback().mSentMessageCount, 2u);
CheckForInvalidAction(messageLog);
EXPECT_EQ(GetNumActiveCommandResponderObjects(), 0u);
mpTestContext->ExpireSessionAliceToBob();
mpTestContext->ExpireSessionBobToAlice();
mpTestContext->CreateSessionAliceToBob();
mpTestContext->CreateSessionBobToAlice();
}
// Command Sender sends invoke request, command handler drops invoke response, then test injects malformed status response to
// client, client responds to the status response with invalid action.
TEST_F_FROM_FIXTURE(TestCommandInteraction, TestCommandInvalidMessage4)
{
mockCommandSenderDelegate.ResetCounter();
app::CommandSender commandSender(&mockCommandSenderDelegate, &mpTestContext->GetExchangeManager());
AddInvokeRequestData(&commandSender);
asyncCommand = false;
mpTestContext->GetLoopback().mSentMessageCount = 0;
mpTestContext->GetLoopback().mNumMessagesToDrop = 1;
mpTestContext->GetLoopback().mNumMessagesToAllowBeforeDropping = 1;
EXPECT_EQ(commandSender.SendCommandRequest(mpTestContext->GetSessionBobToAlice()), CHIP_NO_ERROR);
mpTestContext->DrainAndServiceIO();
EXPECT_EQ(mpTestContext->GetLoopback().mSentMessageCount, 2u);
EXPECT_EQ(mpTestContext->GetLoopback().mDroppedMessageCount, 1u);
EXPECT_EQ(mockCommandSenderDelegate.onResponseCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onFinalCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onErrorCalledTimes, 0);
EXPECT_EQ(GetNumActiveCommandResponderObjects(), 0u);
System::PacketBufferHandle msgBuf = System::PacketBufferHandle::New(kMaxSecureSduLengthBytes);
ASSERT_FALSE(msgBuf.IsNull());
System::PacketBufferTLVWriter writer;
writer.Init(std::move(msgBuf));
StatusResponseMessage::Builder response;
response.Init(&writer);
EXPECT_EQ(writer.Finalize(&msgBuf), CHIP_NO_ERROR);
PayloadHeader payloadHeader;
payloadHeader.SetExchangeID(0);
payloadHeader.SetMessageType(chip::Protocols::InteractionModel::MsgType::StatusResponse);
chip::Test::MessageCapturer messageLog(*mpTestContext);
messageLog.mCaptureStandaloneAcks = false;
// Since we are dropping packets, things are not getting acked. Set up our
// MRP state to look like what it would have looked like if the packet had
// not gotten dropped.
PretendWeGotReplyFromServer(*mpTestContext, commandSender.mExchangeCtx.Get());
mpTestContext->GetLoopback().mSentMessageCount = 0;
mpTestContext->GetLoopback().mNumMessagesToDrop = 0;
mpTestContext->GetLoopback().mNumMessagesToAllowBeforeDropping = 0;
mpTestContext->GetLoopback().mDroppedMessageCount = 0;
EXPECT_EQ(commandSender.OnMessageReceived(commandSender.mExchangeCtx.Get(), payloadHeader, std::move(msgBuf)),
CHIP_ERROR_END_OF_TLV);
EXPECT_EQ(mockCommandSenderDelegate.mError, CHIP_ERROR_END_OF_TLV);
EXPECT_EQ(mockCommandSenderDelegate.onResponseCalledTimes, 0);
EXPECT_EQ(mockCommandSenderDelegate.onFinalCalledTimes, 1);
EXPECT_EQ(mockCommandSenderDelegate.onErrorCalledTimes, 1);
mpTestContext->DrainAndServiceIO();
// Client sent status report with invalid action, server's exchange has been closed, so all it sent is an MRP Ack
EXPECT_EQ(mpTestContext->GetLoopback().mSentMessageCount, 2u);
CheckForInvalidAction(messageLog);
EXPECT_EQ(GetNumActiveCommandResponderObjects(), 0u);
mpTestContext->ExpireSessionAliceToBob();
mpTestContext->ExpireSessionBobToAlice();
mpTestContext->CreateSessionAliceToBob();
mpTestContext->CreateSessionBobToAlice();
}
TEST_F(TestCommandInteraction, TestCommandSender_WithWrongState)
{
app::CommandSender commandSender(&mockCommandSenderDelegate, &mpTestContext->GetExchangeManager());
EXPECT_EQ(commandSender.SendCommandRequest(mpTestContext->GetSessionBobToAlice()), CHIP_ERROR_INCORRECT_STATE);
}
TEST_F(TestCommandInteraction, TestCommandHandler_WithWrongState)
{
ConcreteCommandPath requestCommandPath = { kTestEndpointId, kTestClusterId, kTestCommandIdNoData };
ConcreteCommandPath responseCommandPath = { kTestEndpointId, kTestClusterId, kTestCommandIdNoData };
CommandHandlerWithUnrespondedCommand commandHandler(&mockCommandHandlerDelegate, requestCommandPath,
/* aRef = */ NullOptional);
{
// This simulates how cluster would call CommandHandler APIs synchronously. There would
// be handle already acquired on the callers behalf.
CommandHandler::Handle handle(&commandHandler);
const CommandHandlerImpl::InvokeResponseParameters prepareParams(requestCommandPath);
EXPECT_EQ(commandHandler.PrepareInvokeResponseCommand(responseCommandPath, prepareParams), CHIP_NO_ERROR);
}
EXPECT_TRUE(commandHandler.mMockCommandResponder.mChunks.IsNull());
}
TEST_F_FROM_FIXTURE(TestCommandInteraction, TestCommandSender_WithSendCommand)
{
app::CommandSender commandSender(&mockCommandSenderDelegate, &mpTestContext->GetExchangeManager());
System::PacketBufferHandle buf = System::PacketBufferHandle::New(System::PacketBuffer::kMaxSize);
AddInvokeRequestData(&commandSender);
EXPECT_EQ(commandSender.SendCommandRequest(mpTestContext->GetSessionBobToAlice()), CHIP_NO_ERROR);
mpTestContext->DrainAndServiceIO();
GenerateInvokeResponse(buf, kTestCommandIdWithData);
bool moreChunkedMessages = false;
EXPECT_EQ(commandSender.ProcessInvokeResponse(std::move(buf), moreChunkedMessages), CHIP_NO_ERROR);
EXPECT_FALSE(moreChunkedMessages);
}