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c41373d9bd
RASCSI/cpp/test/scsi_controller_test.cpp
Uwe Seimet c41373d9bd
Use lambdas for dispatcher, code cleanup, test updates (#958) 
* Using lambdas instead of member function pointers simplifies the command dispatching and reduces the code volume

* Removed duplicate error handling

* Fix for issue #956

* Unit test updates

* Resolved SonarQube issues
2022-11-02 15:36:19 +01:00

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//---------------------------------------------------------------------------
//
// SCSI Target Emulator RaSCSI Reloaded
// for Raspberry Pi
//
// Copyright (C) 2022 Uwe Seimet
//
//---------------------------------------------------------------------------
#include "mocks.h"
#include "scsi.h"
#include "rascsi_exceptions.h"
#include "controllers/scsi_controller.h"
using namespace scsi_defs;
TEST(ScsiControllerTest, GetInitiatorId)
{
const int ID = 2;
MockScsiController controller(make_shared<NiceMock<MockBus>>());
controller.Process(ID);
EXPECT_EQ(ID, controller.GetInitiatorId());
controller.Process(-1);
EXPECT_EQ(-1, controller.GetInitiatorId());
}
TEST(ScsiControllerTest, Process)
{
auto bus = make_shared<NiceMock<MockBus>>();
MockScsiController controller(bus);
controller.SetPhase(BUS::phase_t::reserved);
ON_CALL(*bus, GetRST).WillByDefault(Return(true));
EXPECT_CALL(*bus, Acquire);
EXPECT_CALL(*bus, GetRST);
EXPECT_CALL(*bus, Reset);
EXPECT_CALL(controller, Reset);
EXPECT_EQ(BUS::phase_t::reserved, controller.Process(0));
controller.SetPhase(BUS::phase_t::busfree);
ON_CALL(*bus, GetRST).WillByDefault(Return(false));
EXPECT_CALL(*bus, Acquire);
EXPECT_CALL(*bus, GetRST);
EXPECT_EQ(BUS::phase_t::busfree, controller.Process(0));
controller.SetPhase(BUS::phase_t::reserved);
EXPECT_CALL(*bus, Acquire);
EXPECT_CALL(*bus, GetRST);
EXPECT_CALL(*bus, Reset);
EXPECT_CALL(controller, Reset);
EXPECT_EQ(BUS::phase_t::busfree, controller.Process(0));
}
TEST(ScsiControllerTest, BusFree)
{
MockScsiController controller(make_shared<NiceMock<MockBus>>());
controller.SetPhase(BUS::phase_t::busfree);
controller.BusFree();
EXPECT_EQ(BUS::phase_t::busfree, controller.GetPhase());
controller.SetStatus(status::CHECK_CONDITION);
controller.SetPhase(BUS::phase_t::reserved);
controller.BusFree();
EXPECT_EQ(BUS::phase_t::busfree, controller.GetPhase());
EXPECT_EQ(status::GOOD, controller.GetStatus());
controller.ScheduleShutdown(AbstractController::rascsi_shutdown_mode::NONE);
controller.SetPhase(BUS::phase_t::reserved);
controller.BusFree();
controller.ScheduleShutdown(AbstractController::rascsi_shutdown_mode::STOP_PI);
controller.SetPhase(BUS::phase_t::reserved);
controller.BusFree();
controller.ScheduleShutdown(AbstractController::rascsi_shutdown_mode::RESTART_PI);
controller.SetPhase(BUS::phase_t::reserved);
controller.BusFree();
controller.ScheduleShutdown(AbstractController::rascsi_shutdown_mode::STOP_RASCSI);
controller.SetPhase(BUS::phase_t::reserved);
EXPECT_EXIT(controller.BusFree(), ExitedWithCode(EXIT_SUCCESS), "");
}
TEST(ScsiControllerTest, Selection)
{
auto bus = make_shared<NiceMock<MockBus>>();
MockScsiController controller(bus, 0);
controller.SetPhase(BUS::phase_t::selection);
ON_CALL(*bus, GetSEL).WillByDefault(Return(true));
ON_CALL(*bus, GetBSY).WillByDefault(Return(true));
EXPECT_CALL(*bus, GetATN).Times(0);
controller.Selection();
EXPECT_EQ(BUS::phase_t::selection, controller.GetPhase());
ON_CALL(*bus, GetSEL).WillByDefault(Return(true));
ON_CALL(*bus, GetBSY).WillByDefault(Return(false));
EXPECT_CALL(*bus, GetATN).Times(0);
EXPECT_CALL(controller, Status);
controller.Selection();
EXPECT_EQ(BUS::phase_t::selection, controller.GetPhase());
ON_CALL(*bus, GetSEL).WillByDefault(Return(false));
ON_CALL(*bus, GetBSY).WillByDefault(Return(false));
EXPECT_CALL(*bus, GetATN).Times(0);
controller.Selection();
EXPECT_EQ(BUS::phase_t::selection, controller.GetPhase());
ON_CALL(*bus, GetSEL).WillByDefault(Return(false));
ON_CALL(*bus, GetBSY).WillByDefault(Return(true));
ON_CALL(*bus, GetATN).WillByDefault(Return(false));
EXPECT_CALL(*bus, GetATN);
controller.Selection();
EXPECT_EQ(BUS::phase_t::command, controller.GetPhase());
controller.SetPhase(BUS::phase_t::selection);
ON_CALL(*bus, GetSEL).WillByDefault(Return(false));
ON_CALL(*bus, GetBSY).WillByDefault(Return(true));
ON_CALL(*bus, GetATN).WillByDefault(Return(true));
EXPECT_CALL(*bus, GetATN);
controller.Selection();
EXPECT_EQ(BUS::phase_t::msgout, controller.GetPhase());
controller.SetPhase(BUS::phase_t::reserved);
ON_CALL(*bus, GetDAT).WillByDefault(Return(0));
controller.Selection();
EXPECT_EQ(BUS::phase_t::reserved, controller.GetPhase());
ON_CALL(*bus, GetDAT).WillByDefault(Return(1));
controller.Selection();
EXPECT_EQ(BUS::phase_t::reserved, controller.GetPhase()) << "There is no device that can be selected";
auto device = make_shared<MockPrimaryDevice>(0);
controller.AddDevice(device);
EXPECT_CALL(*bus, SetBSY(true));
controller.Selection();
EXPECT_EQ(BUS::phase_t::selection, controller.GetPhase());
}
TEST(ScsiControllerTest, Command)
{
auto bus = make_shared<NiceMock<MockBus>>();
MockScsiController controller(bus, 0);
controller.SetPhase(BUS::phase_t::command);
EXPECT_CALL(controller, Status);
controller.Command();
EXPECT_EQ(BUS::phase_t::command, controller.GetPhase());
controller.SetPhase(BUS::phase_t::reserved);
EXPECT_CALL(*bus, SetMSG(false));
EXPECT_CALL(*bus, SetCD(true));
EXPECT_CALL(*bus, SetIO(false));
controller.Command();
EXPECT_EQ(BUS::phase_t::command, controller.GetPhase());
controller.SetPhase(BUS::phase_t::reserved);
ON_CALL(*bus, CommandHandShake).WillByDefault(Return(6));
EXPECT_CALL(*bus, SetMSG(false));
EXPECT_CALL(*bus, SetCD(true));
EXPECT_CALL(*bus, SetIO(false));
EXPECT_CALL(controller, Execute);
controller.Command();
EXPECT_EQ(BUS::phase_t::command, controller.GetPhase());
}
TEST(ScsiControllerTest, MsgIn)
{
auto bus = make_shared<NiceMock<MockBus>>();
MockScsiController controller(bus, 0);
controller.SetPhase(BUS::phase_t::reserved);
EXPECT_CALL(*bus, SetMSG(true));
EXPECT_CALL(*bus, SetCD(true));
EXPECT_CALL(*bus, SetIO(true));
controller.MsgIn();
EXPECT_EQ(BUS::phase_t::msgin, controller.GetPhase());
EXPECT_FALSE(controller.HasValidLength());
EXPECT_EQ(0, controller.GetOffset());
}
TEST(ScsiControllerTest, MsgOut)
{
auto bus = make_shared<NiceMock<MockBus>>();
MockScsiController controller(bus, 0);
controller.SetPhase(BUS::phase_t::reserved);
EXPECT_CALL(*bus, SetMSG(true));
EXPECT_CALL(*bus, SetCD(true));
EXPECT_CALL(*bus, SetIO(false));
controller.MsgOut();
EXPECT_EQ(BUS::phase_t::msgout, controller.GetPhase());
EXPECT_EQ(1, controller.GetLength());
EXPECT_EQ(0, controller.GetOffset());
}
TEST(ScsiControllerTest, DataIn)
{
auto bus = make_shared<NiceMock<MockBus>>();
MockScsiController controller(bus, 0);
controller.SetPhase(BUS::phase_t::reserved);
controller.SetLength(0);
EXPECT_CALL(controller, Status);
controller.DataIn();
EXPECT_EQ(BUS::phase_t::reserved, controller.GetPhase());
controller.SetLength(1);
EXPECT_CALL(*bus, SetMSG(false));
EXPECT_CALL(*bus, SetCD(false));
EXPECT_CALL(*bus, SetIO(true));
controller.DataIn();
EXPECT_EQ(BUS::phase_t::datain, controller.GetPhase());
EXPECT_EQ(0, controller.GetOffset());
}
TEST(ScsiControllerTest, DataOut)
{
auto bus = make_shared<NiceMock<MockBus>>();
MockScsiController controller(bus, 0);
controller.SetPhase(BUS::phase_t::reserved);
controller.SetLength(0);
EXPECT_CALL(controller, Status);
controller.DataOut();
EXPECT_EQ(BUS::phase_t::reserved, controller.GetPhase());
controller.SetLength(1);
EXPECT_CALL(*bus, SetMSG(false));
EXPECT_CALL(*bus, SetCD(false));
EXPECT_CALL(*bus, SetIO(false));
controller.DataOut();
EXPECT_EQ(BUS::phase_t::dataout, controller.GetPhase());
EXPECT_EQ(0, controller.GetOffset());
}
TEST(ScsiControllerTest, Error)
{
auto bus = make_shared<NiceMock<MockBus>>();
MockScsiController controller(bus, 0);
ON_CALL(*bus, GetRST).WillByDefault(Return(true));
controller.SetPhase(BUS::phase_t::reserved);
EXPECT_CALL(*bus, Acquire);
EXPECT_CALL(*bus, GetRST());
EXPECT_CALL(*bus, Reset);
EXPECT_CALL(controller, Reset);
controller.Error(sense_key::ABORTED_COMMAND, asc::NO_ADDITIONAL_SENSE_INFORMATION, status::RESERVATION_CONFLICT);
EXPECT_EQ(status::GOOD, controller.GetStatus());
EXPECT_EQ(BUS::phase_t::reserved, controller.GetPhase());
ON_CALL(*bus, GetRST).WillByDefault(Return(false));
controller.SetPhase(BUS::phase_t::status);
EXPECT_CALL(*bus, Acquire);
EXPECT_CALL(*bus, GetRST());
EXPECT_CALL(*bus, Reset).Times(0);
EXPECT_CALL(controller, Reset).Times(0);
controller.Error(sense_key::ABORTED_COMMAND, asc::NO_ADDITIONAL_SENSE_INFORMATION, status::RESERVATION_CONFLICT);
EXPECT_EQ(BUS::phase_t::busfree, controller.GetPhase());
controller.SetPhase(BUS::phase_t::msgin);
EXPECT_CALL(*bus, Acquire);
EXPECT_CALL(*bus, GetRST());
EXPECT_CALL(*bus, Reset).Times(0);
EXPECT_CALL(controller, Reset).Times(0);
controller.Error(sense_key::ABORTED_COMMAND, asc::NO_ADDITIONAL_SENSE_INFORMATION, status::RESERVATION_CONFLICT);
EXPECT_EQ(BUS::phase_t::busfree, controller.GetPhase());
controller.SetPhase(BUS::phase_t::reserved);
EXPECT_CALL(*bus, Acquire);
EXPECT_CALL(*bus, GetRST());
EXPECT_CALL(*bus, Reset).Times(0);
EXPECT_CALL(controller, Reset).Times(0);
EXPECT_CALL(controller, Status);
controller.Error(sense_key::ABORTED_COMMAND, asc::NO_ADDITIONAL_SENSE_INFORMATION, status::RESERVATION_CONFLICT);
EXPECT_EQ(status::RESERVATION_CONFLICT, controller.GetStatus());
EXPECT_EQ(BUS::phase_t::reserved, controller.GetPhase());
}
TEST(ScsiControllerTest, RequestSense)
{
MockScsiController controller(make_shared<NiceMock<MockBus>>());
auto device = make_shared<MockPrimaryDevice>(0);
const unordered_map<string, string> params;
device->Init(params);
controller.AddDevice(device);
auto& cmd = controller.GetCmd();
// ALLOCATION LENGTH
cmd[4] = 255;
// Non-existing LUN
cmd[1] = 0x20;
device->SetReady(true);
EXPECT_CALL(controller, Status);
device->Dispatch(scsi_command::eCmdRequestSense);
EXPECT_EQ(status::GOOD, controller.GetStatus()) << "Illegal CHECK CONDITION for non-existing LUN";
}
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