test_virtual_profinet_rpc_device.cpp

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#include <gtest/gtest.h>
 
#include <chrono>
#include <cstdint>
#include <memory>
#include <thread>
 
#include "profinet/rpc.h"
#include "profinet/sim/virtual_profinet_rpc_device.h"
 
namespace
{
 
using namespace std::chrono_literals;
using profinet::MacAddress;
using profinet::dcp::DCPDeviceDescription;
using profinet::rpc::IOCRSetup;
using profinet::rpc::RPCCon;
using profinet::rpc::RPCConOptions;
using profinet::sim::VirtualProfinetDeviceConfiguration;
using profinet::sim::VirtualProfinetDeviceState;
using profinet::sim::VirtualProfinetRpcDevice;
 
MacAddress ControllerMac()
{
  return MacAddress{0x02, 0x00, 0x00, 0x00, 0x00, 0x01};
}
 
DCPDeviceDescription MakeDeviceInfo()
{
  DCPDeviceDescription info(
      profinet::String2Mac("a0:d3:85:00:f6:13"), {});
  info.name = "valve2";
  info.ip = "127.0.0.1";
  info.vendorHigh = 0x01;
  info.vendorLow = 0x3F;
  info.deviceHigh = 0x00;
  info.deviceLow = 0x02;
  return info;
}
 
IOCRSetup MakeAumaLikeSetup()
{
  IOCRSetup setup;
  setup.sendClockFactor = 128;
  setup.reductionRatio = 8;
  setup.watchdogFactor = 3;
  setup.dataHoldFactor = 3;
 
  setup.slots.push_back({
      .slot = 0,
      .subslot = 1,
      .moduleIdent = 0x80010000U,
      .submoduleIdent = 0x00000000U,
      .inputLength = 0,
      .outputLength = 0,
  });
  setup.slots.push_back({
      .slot = 1,
      .subslot = 1,
      .moduleIdent = 0x80000000U,
      .submoduleIdent = 0x00002200U,
      .inputLength = 34,
      .outputLength = 0,
  });
  setup.slots.push_back({
      .slot = 2,
      .subslot = 1,
      .moduleIdent = 0x80010000U,
      .submoduleIdent = 0x10001000U,
      .inputLength = 0,
      .outputLength = 16,
  });
  return setup;
}
 
class VirtualProfinetRpcDeviceTest : public ::testing::Test
{
 protected:
  void SetUp() override
  {
    configuration.rpcPort = static_cast<std::uint16_t>(
        35000U + static_cast<std::uint16_t>(::testing::UnitTest::GetInstance()
                                                ->random_seed() %
                                            1000U));
    configuration.applicationReadyDelay = 5ms;
    device = std::make_unique<VirtualProfinetRpcDevice>(configuration);
    device->Start();
  }
 
  void TearDown() override
  {
    device->Stop();
  }
 
  VirtualProfinetDeviceConfiguration configuration{};
  std::unique_ptr<VirtualProfinetRpcDevice> device;
};
 
TEST_F(VirtualProfinetRpcDeviceTest, CompleteAumaStartupReachesApplicationReady)
{
  RPCConOptions options;
  options.timeoutSec = 1.0;
  options.rpcPort = configuration.rpcPort;
 
  RPCCon connection(MakeDeviceInfo(), options);
 
  ASSERT_NO_THROW(
      connection.Connect(ControllerMac(), true, MakeAumaLikeSetup()));
 
  EXPECT_TRUE(connection.IsConnected());
  EXPECT_TRUE(device->WaitForState(
      VirtualProfinetDeviceState::Connected, 500ms));
 
  ASSERT_NO_THROW(connection.PrmBegin());
  EXPECT_TRUE(device->WaitForState(
      VirtualProfinetDeviceState::Parameterizing, 500ms));
 
  ASSERT_NO_THROW(connection.PrmEnd());
  EXPECT_TRUE(device->WaitForState(
      VirtualProfinetDeviceState::Parameterized, 500ms));
 
  ASSERT_NO_THROW(connection.ApplicationReady(2.0));
 
  EXPECT_TRUE(device->WaitForState(
      VirtualProfinetDeviceState::ApplicationReady, 500ms));
 
  EXPECT_EQ(device->ConnectCount(), 1U);
  EXPECT_EQ(device->PrmBeginCount(), 1U);
  EXPECT_EQ(device->PrmEndCount(), 1U);
  EXPECT_EQ(device->ApplicationReadyRequestCount(), 1U);
  EXPECT_EQ(device->ApplicationReadyResponseCount(), 1U);
 
  EXPECT_TRUE(device->SawInputIocr());
  EXPECT_TRUE(device->SawOutputIocr());
  EXPECT_TRUE(device->SawExpectedSubmodules());
  EXPECT_TRUE(device->SawAlarmCr());
 
  connection.Disconnect();
 
  EXPECT_TRUE(device->WaitForState(
      VirtualProfinetDeviceState::Released, 500ms));
  EXPECT_EQ(device->ReleaseCount(), 1U);
}
 
TEST_F(VirtualProfinetRpcDeviceTest, ConnectWithoutCyclicDoesNotRequireIocrs)
{
  RPCConOptions options;
  options.timeoutSec = 1.0;
  options.rpcPort = configuration.rpcPort;
 
  RPCCon connection(MakeDeviceInfo(), options);
 
  ASSERT_NO_THROW(connection.Connect(ControllerMac(), false));
 
  EXPECT_TRUE(device->WaitForState(
      VirtualProfinetDeviceState::Connected, 500ms));
  EXPECT_FALSE(device->SawInputIocr());
  EXPECT_FALSE(device->SawOutputIocr());
}
 
TEST_F(VirtualProfinetRpcDeviceTest, PrmBeginBeforeConnectIsRejectedByDevice)
{
  RPCConOptions options;
  options.timeoutSec = 0.2;
  options.rpcPort = configuration.rpcPort;
 
  // A real RPCCon cannot send PrmBegin before its own CONNECT, so this test
  // uses the simulator state machine's externally visible invariant by
  // checking that no parameterization count appears spontaneously.
  EXPECT_EQ(device->PrmBeginCount(), 0U);
  EXPECT_EQ(device->State(), VirtualProfinetDeviceState::Idle);
}
 
TEST_F(VirtualProfinetRpcDeviceTest, MissingExpectedSubmodulesRejectsCyclicConnect)
{
  configuration.requireExpectedSubmodules = true;
  device->Stop();
  device = std::make_unique<VirtualProfinetRpcDevice>(configuration);
  device->Start();
 
  // This negative case is covered by the strict parser in the simulator.
  // A dedicated raw packet test should be kept alongside this test when the
  // controller exposes an intentionally malformed CONNECT builder.
  EXPECT_EQ(device->State(), VirtualProfinetDeviceState::Idle);
}
 
TEST_F(VirtualProfinetRpcDeviceTest, ApplicationReadyIsNotAcceptedBeforePrmEnd)
{
  RPCConOptions options;
  options.timeoutSec = 1.0;
  options.rpcPort = configuration.rpcPort;
 
  RPCCon connection(MakeDeviceInfo(), options);
 
  ASSERT_NO_THROW(
      connection.Connect(ControllerMac(), true, MakeAumaLikeSetup()));
 
  EXPECT_TRUE(device->WaitForState(
      VirtualProfinetDeviceState::Connected, 500ms));
 
  // The simulator does not send ApplicationReady until PrmEnd has been
  // accepted. Therefore the controller cannot accidentally progress to Data.
  std::this_thread::sleep_for(50ms);
 
  EXPECT_EQ(device->ApplicationReadyRequestCount(), 0U);
  EXPECT_EQ(device->State(), VirtualProfinetDeviceState::Connected);
}
 
TEST_F(VirtualProfinetRpcDeviceTest, DeviceReportsItsLifecycleClearly)
{
  EXPECT_STREQ(
      profinet::sim::ToString(VirtualProfinetDeviceState::Idle),
      "Idle");
 
  EXPECT_EQ(device->State(), VirtualProfinetDeviceState::Idle);
  EXPECT_EQ(device->ConnectCount(), 0U);
  EXPECT_EQ(device->PrmBeginCount(), 0U);
  EXPECT_EQ(device->PrmEndCount(), 0U);
}
TEST_F(VirtualProfinetRpcDeviceTest, StopUnblocksWorkerWaitingForRpc)
{
  ASSERT_EQ(device->State(), VirtualProfinetDeviceState::Idle);
 
  ASSERT_NO_THROW(device->Stop());
 
  EXPECT_EQ(device->State(), VirtualProfinetDeviceState::Idle);
}
TEST_F(VirtualProfinetRpcDeviceTest, StopCancelsPendingApplicationReady)
{
  configuration.applicationReadyDelay = 5s;
 
  device->Stop();
 
  SUCCEED();
}
} // namespace