rmad/state_handler/device_destination_state_handler_test.cc

// Copyright 2021 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <memory>
#include <string>
#include <utility>
#include <vector>

#include <base/memory/scoped_refptr.h>
#include <gtest/gtest.h>

#include "rmad/constants.h"
#include "rmad/state_handler/device_destination_state_handler.h"
#include "rmad/state_handler/state_handler_test_common.h"
#include "rmad/system/mock_cryptohome_client.h"
#include "rmad/utils/mock_cr50_utils.h"
#include "rmad/utils/mock_crossystem_utils.h"

using testing::_;
using testing::DoAll;
using testing::Eq;
using testing::NiceMock;
using testing::Return;
using testing::SetArgPointee;

namespace rmad {

using ComponentRepairStatus = ComponentsRepairState::ComponentRepairStatus;

class DeviceDestinationStateHandlerTest : public StateHandlerTest {
 public:
  scoped_refptr<DeviceDestinationStateHandler> CreateStateHandler(
      bool ccd_blocked, bool factory_mode_enabled, int hwwp_enabled) {
    // Mock |CryptohomeClient|.
    auto mock_cryptohome_client =
        std::make_unique<NiceMock<MockCryptohomeClient>>();
    ON_CALL(*mock_cryptohome_client, IsCcdBlocked())
        .WillByDefault(Return(ccd_blocked));
    // Mock |Cr50Utils|.
    auto mock_cr50_utils = std::make_unique<NiceMock<MockCr50Utils>>();
    ON_CALL(*mock_cr50_utils, IsFactoryModeEnabled())
        .WillByDefault(Return(factory_mode_enabled));
    // Mock |CrosSystemUtils|.
    auto mock_crossystem_utils =
        std::make_unique<NiceMock<MockCrosSystemUtils>>();
    ON_CALL(*mock_crossystem_utils,
            GetInt(Eq(CrosSystemUtils::kHwwpStatusProperty), _))
        .WillByDefault(DoAll(SetArgPointee<1>(hwwp_enabled), Return(true)));

    return base::MakeRefCounted<DeviceDestinationStateHandler>(
        json_store_, std::move(mock_cryptohome_client),
        std::move(mock_cr50_utils), std::move(mock_crossystem_utils));
  }
};

TEST_F(DeviceDestinationStateHandlerTest, InitializeState_Success) {
  auto handler = CreateStateHandler(false, false, 1);
  EXPECT_EQ(handler->InitializeState(), RMAD_ERROR_OK);
}

TEST_F(DeviceDestinationStateHandlerTest,
       GetNextStateCase_Success_Same_WpDisableRequired_CcdBlocked) {
  auto handler = CreateStateHandler(true, false, 1);
  EXPECT_EQ(handler->InitializeState(), RMAD_ERROR_OK);

  json_store_->SetValue(kReplacedComponentNames,
                        std::vector<std::string>{
                            RmadComponent_Name(RMAD_COMPONENT_BASE_GYROSCOPE)});

  RmadState state;
  state.mutable_device_destination()->set_destination(
      DeviceDestinationState::RMAD_DESTINATION_SAME);

  auto [error, state_case] = handler->GetNextStateCase(state);
  EXPECT_EQ(error, RMAD_ERROR_OK);
  EXPECT_EQ(state_case, RmadState::StateCase::kWipeSelection);

  bool same_owner;
  EXPECT_TRUE(json_store_->GetValue(kSameOwner, &same_owner));
  EXPECT_TRUE(same_owner);

  bool wp_disable_required;
  EXPECT_TRUE(json_store_->GetValue(kWpDisableRequired, &wp_disable_required));
  EXPECT_TRUE(wp_disable_required);

  bool ccd_blocked;
  EXPECT_TRUE(json_store_->GetValue(kCcdBlocked, &ccd_blocked));
  EXPECT_TRUE(ccd_blocked);

  bool wipe_device;
  EXPECT_FALSE(json_store_->GetValue(kWipeDevice, &wipe_device));
}

TEST_F(DeviceDestinationStateHandlerTest,
       GetNextStateCase_Success_Same_WpDisableRequired_CcdNotBlocked) {
  auto handler = CreateStateHandler(false, false, 1);
  EXPECT_EQ(handler->InitializeState(), RMAD_ERROR_OK);

  json_store_->SetValue(kReplacedComponentNames,
                        std::vector<std::string>{
                            RmadComponent_Name(RMAD_COMPONENT_BASE_GYROSCOPE)});

  RmadState state;
  state.mutable_device_destination()->set_destination(
      DeviceDestinationState::RMAD_DESTINATION_SAME);

  auto [error, state_case] = handler->GetNextStateCase(state);
  EXPECT_EQ(error, RMAD_ERROR_OK);
  EXPECT_EQ(state_case, RmadState::StateCase::kWipeSelection);

  bool same_owner;
  EXPECT_TRUE(json_store_->GetValue(kSameOwner, &same_owner));
  EXPECT_TRUE(same_owner);

  bool wp_disable_required;
  EXPECT_TRUE(json_store_->GetValue(kWpDisableRequired, &wp_disable_required));
  EXPECT_TRUE(wp_disable_required);

  bool ccd_blocked;
  EXPECT_TRUE(json_store_->GetValue(kCcdBlocked, &ccd_blocked));
  EXPECT_FALSE(ccd_blocked);

  bool wipe_device;
  EXPECT_FALSE(json_store_->GetValue(kWipeDevice, &wipe_device));
}

TEST_F(DeviceDestinationStateHandlerTest,
       GetNextStateCase_Success_Same_WpDisableNotRequired) {
  auto handler = CreateStateHandler(false, false, 1);
  EXPECT_EQ(handler->InitializeState(), RMAD_ERROR_OK);

  json_store_->SetValue(kReplacedComponentNames,
                        std::vector<RmadComponent>{RMAD_COMPONENT_KEYBOARD});

  RmadState state;
  state.mutable_device_destination()->set_destination(
      DeviceDestinationState::RMAD_DESTINATION_SAME);

  auto [error, state_case] = handler->GetNextStateCase(state);
  EXPECT_EQ(error, RMAD_ERROR_OK);
  EXPECT_EQ(state_case, RmadState::StateCase::kWipeSelection);

  bool same_owner;
  EXPECT_TRUE(json_store_->GetValue(kSameOwner, &same_owner));
  EXPECT_TRUE(same_owner);

  bool wp_disable_required;
  EXPECT_TRUE(json_store_->GetValue(kWpDisableRequired, &wp_disable_required));
  EXPECT_FALSE(wp_disable_required);

  bool ccd_blocked;
  EXPECT_FALSE(json_store_->GetValue(kCcdBlocked, &ccd_blocked));

  bool wipe_device;
  EXPECT_FALSE(json_store_->GetValue(kWipeDevice, &wipe_device));
}

TEST_F(DeviceDestinationStateHandlerTest,
       GetNextStateCase_Success_Different_CcdBlocked) {
  auto handler = CreateStateHandler(true, false, 1);
  EXPECT_EQ(handler->InitializeState(), RMAD_ERROR_OK);

  RmadState state;
  state.mutable_device_destination()->set_destination(
      DeviceDestinationState::RMAD_DESTINATION_DIFFERENT);

  auto [error, state_case] = handler->GetNextStateCase(state);
  EXPECT_EQ(error, RMAD_ERROR_OK);
  EXPECT_EQ(state_case, RmadState::StateCase::kWpDisableRsu);

  bool same_owner;
  EXPECT_TRUE(json_store_->GetValue(kSameOwner, &same_owner));
  EXPECT_FALSE(same_owner);

  bool wp_disable_required;
  EXPECT_TRUE(json_store_->GetValue(kWpDisableRequired, &wp_disable_required));
  EXPECT_TRUE(wp_disable_required);

  bool ccd_blocked;
  EXPECT_TRUE(json_store_->GetValue(kCcdBlocked, &ccd_blocked));
  EXPECT_TRUE(ccd_blocked);

  bool wipe_device;
  EXPECT_TRUE(json_store_->GetValue(kWipeDevice, &wipe_device));
  EXPECT_TRUE(wipe_device);
}

TEST_F(DeviceDestinationStateHandlerTest,
       GetNextStateCase_Success_Different_CcdNotBlocked_FactoryModeEnabled) {
  auto handler = CreateStateHandler(false, true, 0);
  EXPECT_EQ(handler->InitializeState(), RMAD_ERROR_OK);

  RmadState state;
  state.mutable_device_destination()->set_destination(
      DeviceDestinationState::RMAD_DESTINATION_DIFFERENT);

  auto [error, state_case] = handler->GetNextStateCase(state);
  EXPECT_EQ(error, RMAD_ERROR_OK);
  EXPECT_EQ(state_case, RmadState::StateCase::kWpDisableComplete);

  bool same_owner;
  EXPECT_TRUE(json_store_->GetValue(kSameOwner, &same_owner));
  EXPECT_FALSE(same_owner);

  bool wp_disable_required;
  EXPECT_TRUE(json_store_->GetValue(kWpDisableRequired, &wp_disable_required));
  EXPECT_TRUE(wp_disable_required);

  bool ccd_blocked;
  EXPECT_TRUE(json_store_->GetValue(kCcdBlocked, &ccd_blocked));
  EXPECT_FALSE(ccd_blocked);

  bool wipe_device;
  EXPECT_TRUE(json_store_->GetValue(kWipeDevice, &wipe_device));
  EXPECT_TRUE(wipe_device);

  bool wp_disable_skipped;
  EXPECT_TRUE(json_store_->GetValue(kWpDisableSkipped, &wp_disable_skipped));
  EXPECT_TRUE(wp_disable_skipped);

  int wp_disable_method;
  EXPECT_TRUE(
      json_store_->GetValue(kWriteProtectDisableMethod, &wp_disable_method));
  EXPECT_EQ(wp_disable_method,
            static_cast<int>(WriteProtectDisableMethod::SKIPPED));
}

TEST_F(DeviceDestinationStateHandlerTest,
       GetNextStateCase_Success_Different_CcdNotBlocked_HwwpDisabled) {
  auto handler = CreateStateHandler(false, false, 0);
  EXPECT_EQ(handler->InitializeState(), RMAD_ERROR_OK);

  RmadState state;
  state.mutable_device_destination()->set_destination(
      DeviceDestinationState::RMAD_DESTINATION_DIFFERENT);

  auto [error, state_case] = handler->GetNextStateCase(state);
  EXPECT_EQ(error, RMAD_ERROR_OK);
  EXPECT_EQ(state_case, RmadState::StateCase::kWpDisablePhysical);

  bool same_owner;
  EXPECT_TRUE(json_store_->GetValue(kSameOwner, &same_owner));
  EXPECT_FALSE(same_owner);

  bool wp_disable_required;
  EXPECT_TRUE(json_store_->GetValue(kWpDisableRequired, &wp_disable_required));
  EXPECT_TRUE(wp_disable_required);

  bool ccd_blocked;
  EXPECT_TRUE(json_store_->GetValue(kCcdBlocked, &ccd_blocked));
  EXPECT_FALSE(ccd_blocked);

  bool wipe_device;
  EXPECT_TRUE(json_store_->GetValue(kWipeDevice, &wipe_device));
  EXPECT_TRUE(wipe_device);
}

TEST_F(DeviceDestinationStateHandlerTest,
       GetNextStateCase_Success_Different_CcdNotBlocked_HwwpEnabled) {
  auto handler = CreateStateHandler(false, false, 1);
  EXPECT_EQ(handler->InitializeState(), RMAD_ERROR_OK);

  RmadState state;
  state.mutable_device_destination()->set_destination(
      DeviceDestinationState::RMAD_DESTINATION_DIFFERENT);

  auto [error, state_case] = handler->GetNextStateCase(state);
  EXPECT_EQ(error, RMAD_ERROR_OK);
  EXPECT_EQ(state_case, RmadState::StateCase::kWpDisableMethod);

  bool same_owner;
  EXPECT_TRUE(json_store_->GetValue(kSameOwner, &same_owner));
  EXPECT_FALSE(same_owner);

  bool wp_disable_required;
  EXPECT_TRUE(json_store_->GetValue(kWpDisableRequired, &wp_disable_required));
  EXPECT_TRUE(wp_disable_required);

  bool ccd_blocked;
  EXPECT_TRUE(json_store_->GetValue(kCcdBlocked, &ccd_blocked));
  EXPECT_FALSE(ccd_blocked);

  bool wipe_device;
  EXPECT_TRUE(json_store_->GetValue(kWipeDevice, &wipe_device));
  EXPECT_TRUE(wipe_device);
}

}  // namespace rmad