RASCSI/cpp/test/bus_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

121 lines
4.1 KiB
C++

//---------------------------------------------------------------------------
//
// SCSI Target Emulator RaSCSI Reloaded
// for Raspberry Pi
//
// Copyright (C) 2022 Uwe Seimet
//
//---------------------------------------------------------------------------
#include "mocks.h"
#include "bus.h"
TEST(BusTest, GetCommandByteCount)
{
unordered_set<int> opcodes;
EXPECT_EQ(16, BUS::GetCommandByteCount(0x88));
opcodes.insert(0x88);
EXPECT_EQ(16, BUS::GetCommandByteCount(0x8a));
opcodes.insert(0x8a);
EXPECT_EQ(16, BUS::GetCommandByteCount(0x8f));
opcodes.insert(0x8f);
EXPECT_EQ(16, BUS::GetCommandByteCount(0x91));
opcodes.insert(0x91);
EXPECT_EQ(16, BUS::GetCommandByteCount(0x9e));
opcodes.insert(0x9e);
EXPECT_EQ(16, BUS::GetCommandByteCount(0x9f));
opcodes.insert(0x9f);
EXPECT_EQ(12, BUS::GetCommandByteCount(0xa0));
opcodes.insert(0xa0);
for (int i = 0x20; i <= 0x7d; i++) {
EXPECT_EQ(10, BUS::GetCommandByteCount(i));
opcodes.insert(i);
}
for (int i = 0; i < 256; i++) {
if (opcodes.find(i) == opcodes.end()) {
EXPECT_EQ(6, BUS::GetCommandByteCount(i));
}
}
}
TEST(BusTest, GetPhase)
{
EXPECT_EQ(BUS::phase_t::dataout, BUS::GetPhase(0b000));
EXPECT_EQ(BUS::phase_t::datain, BUS::GetPhase(0b001));
EXPECT_EQ(BUS::phase_t::command, BUS::GetPhase(0b010));
EXPECT_EQ(BUS::phase_t::status, BUS::GetPhase(0b011));
EXPECT_EQ(BUS::phase_t::reserved, BUS::GetPhase(0b100));
EXPECT_EQ(BUS::phase_t::reserved, BUS::GetPhase(0b101));
EXPECT_EQ(BUS::phase_t::msgout, BUS::GetPhase(0b110));
EXPECT_EQ(BUS::phase_t::msgin, BUS::GetPhase(0b111));
NiceMock<MockBus> bus;
EXPECT_EQ(BUS::phase_t::busfree, bus.GetPhase());
ON_CALL(bus, GetSEL()).WillByDefault(Return(true));
EXPECT_EQ(BUS::phase_t::selection, bus.GetPhase());
ON_CALL(bus, GetSEL()).WillByDefault(Return(false));
ON_CALL(bus, GetBSY()).WillByDefault(Return(true));
ON_CALL(bus, GetMSG()).WillByDefault(Return(false));
EXPECT_EQ(BUS::phase_t::dataout, bus.GetPhase());
ON_CALL(bus, GetMSG()).WillByDefault(Return(true));
EXPECT_EQ(BUS::phase_t::reserved, bus.GetPhase());
ON_CALL(bus, GetMSG()).WillByDefault(Return(false));
ON_CALL(bus, GetCD()).WillByDefault(Return(true));
EXPECT_EQ(BUS::phase_t::command, bus.GetPhase());
ON_CALL(bus, GetMSG()).WillByDefault(Return(true));
ON_CALL(bus, GetCD()).WillByDefault(Return(true));
EXPECT_EQ(BUS::phase_t::msgout, bus.GetPhase());
ON_CALL(bus, GetMSG()).WillByDefault(Return(false));
ON_CALL(bus, GetCD()).WillByDefault(Return(false));
ON_CALL(bus, GetIO()).WillByDefault(Return(true));
EXPECT_EQ(BUS::phase_t::datain, bus.GetPhase());
ON_CALL(bus, GetMSG()).WillByDefault(Return(true));
ON_CALL(bus, GetCD()).WillByDefault(Return(false));
ON_CALL(bus, GetIO()).WillByDefault(Return(true));
EXPECT_EQ(BUS::phase_t::reserved, bus.GetPhase());
ON_CALL(bus, GetMSG()).WillByDefault(Return(true));
ON_CALL(bus, GetCD()).WillByDefault(Return(true));
ON_CALL(bus, GetIO()).WillByDefault(Return(true));
EXPECT_EQ(BUS::phase_t::msgin, bus.GetPhase());
ON_CALL(bus, GetMSG()).WillByDefault(Return(false));
ON_CALL(bus, GetCD()).WillByDefault(Return(true));
ON_CALL(bus, GetIO()).WillByDefault(Return(true));
EXPECT_EQ(BUS::phase_t::status, bus.GetPhase());
}
TEST(BusTest, GetPhaseStrRaw)
{
EXPECT_STREQ("busfree", BUS::GetPhaseStrRaw(BUS::phase_t::busfree));
EXPECT_STREQ("arbitration", BUS::GetPhaseStrRaw(BUS::phase_t::arbitration));
EXPECT_STREQ("selection", BUS::GetPhaseStrRaw(BUS::phase_t::selection));
EXPECT_STREQ("reselection", BUS::GetPhaseStrRaw(BUS::phase_t::reselection));
EXPECT_STREQ("command", BUS::GetPhaseStrRaw(BUS::phase_t::command));
EXPECT_STREQ("datain", BUS::GetPhaseStrRaw(BUS::phase_t::datain));
EXPECT_STREQ("dataout", BUS::GetPhaseStrRaw(BUS::phase_t::dataout));
EXPECT_STREQ("status", BUS::GetPhaseStrRaw(BUS::phase_t::status));
EXPECT_STREQ("msgin", BUS::GetPhaseStrRaw(BUS::phase_t::msgin));
EXPECT_STREQ("msgout", BUS::GetPhaseStrRaw(BUS::phase_t::msgout));
EXPECT_STREQ("reserved", BUS::GetPhaseStrRaw(BUS::phase_t::reserved));
}
TEST(BusTest, GetPinRaw)
{
EXPECT_EQ(0, BUS::GetPinRaw(0, 0));
EXPECT_EQ(0, BUS::GetPinRaw(0, 7));
EXPECT_EQ(1, BUS::GetPinRaw(-1, 0));
EXPECT_EQ(1, BUS::GetPinRaw(-1, 7));
}