phosphor-regulators/test/chassis_tests.cpp - openbmc/phosphor-power - Gitiles

 /**
  * Copyright © 2020 IBM Corporation
  *
  * 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.
  */
 #include "action.hpp"
 #include "chassis.hpp"
 #include "configuration.hpp"
 #include "device.hpp"
 #include "i2c_interface.hpp"
 #include "id_map.hpp"
 #include "mock_action.hpp"
 #include "mock_error_logging.hpp"
 #include "mock_journal.hpp"
 #include "mock_sensors.hpp"
 #include "mock_services.hpp"
 #include "mocked_i2c_interface.hpp"
 #include "presence_detection.hpp"
 #include "rail.hpp"
 #include "rule.hpp"
 #include "sensor_monitoring.hpp"
 #include "sensors.hpp"
 #include "system.hpp"
 #include "test_sdbus_error.hpp"
 #include "test_utils.hpp"

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

 #include <gmock/gmock.h>
 #include <gtest/gtest.h>

 using namespace phosphor::power::regulators;
 using namespace phosphor::power::regulators::test_utils;

 using ::testing::A;
 using ::testing::Return;
 using ::testing::Throw;
 using ::testing::TypedEq;

 // Default chassis inventory path
 static const std::string defaultInventoryPath{
     "/xyz/openbmc_project/inventory/system/chassis"};

 TEST(ChassisTests, Constructor)
 {
     // Test where works: Only required parameters are specified
     {
         Chassis chassis{2, defaultInventoryPath};
         EXPECT_EQ(chassis.getNumber(), 2);
         EXPECT_EQ(chassis.getInventoryPath(), defaultInventoryPath);
         EXPECT_EQ(chassis.getDevices().size(), 0);
     }

     // Test where works: All parameters are specified
     {
         // Create vector of Device objects
         std::vector<std::unique_ptr<Device>> devices{};
         devices.emplace_back(createDevice("vdd_reg1"));
         devices.emplace_back(createDevice("vdd_reg2"));

         // Create Chassis
         Chassis chassis{1, defaultInventoryPath, std::move(devices)};
         EXPECT_EQ(chassis.getNumber(), 1);
         EXPECT_EQ(chassis.getInventoryPath(), defaultInventoryPath);
         EXPECT_EQ(chassis.getDevices().size(), 2);
     }

     // Test where fails: Invalid chassis number < 1
     try
     {
         Chassis chassis{0, defaultInventoryPath};
         ADD_FAILURE() << "Should not have reached this line.";
     }
     catch (const std::invalid_argument& e)
     {
         EXPECT_STREQ(e.what(), "Invalid chassis number: 0");
     }
     catch (...)
     {
         ADD_FAILURE() << "Should not have caught exception.";
     }
 }

 TEST(ChassisTests, AddToIDMap)
 {
     // Create vector of Device objects
     std::vector<std::unique_ptr<Device>> devices{};
     devices.emplace_back(createDevice("reg1", {"rail1"}));
     devices.emplace_back(createDevice("reg2", {"rail2a", "rail2b"}));
     devices.emplace_back(createDevice("reg3"));

     // Create Chassis
     Chassis chassis{1, defaultInventoryPath, std::move(devices)};

     // Add Device and Rail objects within the Chassis to an IDMap
     IDMap idMap{};
     chassis.addToIDMap(idMap);

     // Verify all Devices are in the IDMap
     EXPECT_NO_THROW(idMap.getDevice("reg1"));
     EXPECT_NO_THROW(idMap.getDevice("reg2"));
     EXPECT_NO_THROW(idMap.getDevice("reg3"));
     EXPECT_THROW(idMap.getDevice("reg4"), std::invalid_argument);

     // Verify all Rails are in the IDMap
     EXPECT_NO_THROW(idMap.getRail("rail1"));
     EXPECT_NO_THROW(idMap.getRail("rail2a"));
     EXPECT_NO_THROW(idMap.getRail("rail2b"));
     EXPECT_THROW(idMap.getRail("rail3"), std::invalid_argument);
 }

 TEST(ChassisTests, ClearCache)
 {
     // Create PresenceDetection
     std::vector<std::unique_ptr<Action>> actions{};
     std::unique_ptr<PresenceDetection> presenceDetection =
         std::make_unique<PresenceDetection>(std::move(actions));
     PresenceDetection* presenceDetectionPtr = presenceDetection.get();

     // Create Device that contains PresenceDetection
     std::unique_ptr<i2c::I2CInterface> i2cInterface = createI2CInterface();
     std::unique_ptr<Device> device = std::make_unique<Device>(
         "reg1", true,
         "/xyz/openbmc_project/inventory/system/chassis/motherboard/reg1",
         std::move(i2cInterface), std::move(presenceDetection));
     Device* devicePtr = device.get();

     // Create Chassis that contains Device
     std::vector<std::unique_ptr<Device>> devices{};
     devices.emplace_back(std::move(device));
     std::unique_ptr<Chassis> chassis =
         std::make_unique<Chassis>(1, defaultInventoryPath, std::move(devices));
     Chassis* chassisPtr = chassis.get();

     // Create System that contains Chassis
     std::vector<std::unique_ptr<Rule>> rules{};
     std::vector<std::unique_ptr<Chassis>> chassisVec{};
     chassisVec.emplace_back(std::move(chassis));
     System system{std::move(rules), std::move(chassisVec)};

     // Cache presence value in PresenceDetection
     MockServices services{};
     presenceDetectionPtr->execute(services, system, *chassisPtr, *devicePtr);
     EXPECT_TRUE(presenceDetectionPtr->getCachedPresence().has_value());

     // Clear cached data in Chassis
     chassisPtr->clearCache();

     // Verify presence value no longer cached in PresenceDetection
     EXPECT_FALSE(presenceDetectionPtr->getCachedPresence().has_value());
 }

 TEST(ChassisTests, ClearErrorHistory)
 {
     // Create SensorMonitoring.  Will fail with a DBus exception.
     std::unique_ptr<MockAction> action = std::make_unique<MockAction>();
     EXPECT_CALL(*action, execute)
         .WillRepeatedly(Throw(TestSDBusError{"Unable to set sensor value"}));
     std::vector<std::unique_ptr<Action>> actions{};
     actions.emplace_back(std::move(action));
     std::unique_ptr<SensorMonitoring> sensorMonitoring =
         std::make_unique<SensorMonitoring>(std::move(actions));

     // Create Rail
     std::unique_ptr<Configuration> configuration{};
     std::unique_ptr<Rail> rail = std::make_unique<Rail>(
         "vddr1", std::move(configuration), std::move(sensorMonitoring));

     // Create Device that contains Rail
     std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
         std::make_unique<i2c::MockedI2CInterface>();
     std::unique_ptr<PresenceDetection> presenceDetection{};
     std::unique_ptr<Configuration> deviceConfiguration{};
     std::vector<std::unique_ptr<Rail>> rails{};
     rails.emplace_back(std::move(rail));
     std::unique_ptr<Device> device = std::make_unique<Device>(
         "reg1", true,
         "/xyz/openbmc_project/inventory/system/chassis/motherboard/reg1",
         std::move(i2cInterface), std::move(presenceDetection),
         std::move(deviceConfiguration), std::move(rails));

     // Create Chassis that contains Device
     std::vector<std::unique_ptr<Device>> devices{};
     devices.emplace_back(std::move(device));
     std::unique_ptr<Chassis> chassis =
         std::make_unique<Chassis>(1, defaultInventoryPath, std::move(devices));
     Chassis* chassisPtr = chassis.get();

     // Create System that contains Chassis
     std::vector<std::unique_ptr<Rule>> rules{};
     std::vector<std::unique_ptr<Chassis>> chassisVec{};
     chassisVec.emplace_back(std::move(chassis));
     System system{std::move(rules), std::move(chassisVec)};

     // Create mock services
     MockServices services{};

     // Expect Sensors service to be called 5+5=10 times
     MockSensors& sensors = services.getMockSensors();
     EXPECT_CALL(sensors, startRail).Times(10);
     EXPECT_CALL(sensors, setValue).Times(0);
     EXPECT_CALL(sensors, endRail).Times(10);

     // Expect Journal service to be called 3+3=6 times to log error messages
     MockJournal& journal = services.getMockJournal();
     EXPECT_CALL(journal, logError(A<const std::vector<std::string>&>()))
         .Times(6);
     EXPECT_CALL(journal, logError(A<const std::string&>())).Times(6);

     // Expect ErrorLogging service to be called 1+1=2 times to log a DBus error
     MockErrorLogging& errorLogging = services.getMockErrorLogging();
     EXPECT_CALL(errorLogging, logDBusError).Times(2);

     // Monitor sensors 5 times.  Should fail every time, write to journal 3
     // times, and log one error.
     for (int i = 1; i <= 5; ++i)
     {
         chassisPtr->monitorSensors(services, system);
     }

     // Clear error history
     chassisPtr->clearErrorHistory();

     // Monitor sensors 5 times again.  Should fail every time, write to journal
     // 3 times, and log one error.
     for (int i = 1; i <= 5; ++i)
     {
         chassisPtr->monitorSensors(services, system);
     }
 }

 TEST(ChassisTests, CloseDevices)
 {
     // Test where no devices were specified in constructor
     {
         // Create mock services.  Expect logDebug() to be called.
         MockServices services{};
         MockJournal& journal = services.getMockJournal();
         EXPECT_CALL(journal, logDebug("Closing devices in chassis 2")).Times(1);

         // Create Chassis
         Chassis chassis{2, defaultInventoryPath};

         // Call closeDevices()
         chassis.closeDevices(services);
     }

     // Test where devices were specified in constructor
     {
         std::vector<std::unique_ptr<Device>> devices{};

         // Create mock services.  Expect logDebug() to be called.
         MockServices services{};
         MockJournal& journal = services.getMockJournal();
         EXPECT_CALL(journal, logDebug("Closing devices in chassis 1")).Times(1);

         // Create Device vdd0_reg
         {
             // Create mock I2CInterface: isOpen() and close() should be called
             std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
                 std::make_unique<i2c::MockedI2CInterface>();
             EXPECT_CALL(*i2cInterface, isOpen).Times(1).WillOnce(Return(true));
             EXPECT_CALL(*i2cInterface, close).Times(1);

             // Create Device
             std::unique_ptr<Device> device =
                 std::make_unique<Device>("vdd0_reg", true,
                                          "/xyz/openbmc_project/inventory/"
                                          "system/chassis/motherboard/vdd0_reg",
                                          std::move(i2cInterface));
             devices.emplace_back(std::move(device));
         }

         // Create Device vdd1_reg
         {
             // Create mock I2CInterface: isOpen() and close() should be called
             std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
                 std::make_unique<i2c::MockedI2CInterface>();
             EXPECT_CALL(*i2cInterface, isOpen).Times(1).WillOnce(Return(true));
             EXPECT_CALL(*i2cInterface, close).Times(1);

             // Create Device
             std::unique_ptr<Device> device =
                 std::make_unique<Device>("vdd1_reg", true,
                                          "/xyz/openbmc_project/inventory/"
                                          "system/chassis/motherboard/vdd1_reg",
                                          std::move(i2cInterface));
             devices.emplace_back(std::move(device));
         }

         // Create Chassis
         Chassis chassis{1, defaultInventoryPath, std::move(devices)};

         // Call closeDevices()
         chassis.closeDevices(services);
     }
 }

 TEST(ChassisTests, Configure)
 {
     // Test where no devices were specified in constructor
     {
         // Create mock services.  Expect logInfo() to be called.
         MockServices services{};
         MockJournal& journal = services.getMockJournal();
         EXPECT_CALL(journal, logInfo("Configuring chassis 1")).Times(1);
         EXPECT_CALL(journal, logDebug(A<const std::string&>())).Times(0);
         EXPECT_CALL(journal, logError(A<const std::string&>())).Times(0);

         // Create Chassis
         std::unique_ptr<Chassis> chassis =
             std::make_unique<Chassis>(1, defaultInventoryPath);
         Chassis* chassisPtr = chassis.get();

         // Create System that contains Chassis
         std::vector<std::unique_ptr<Rule>> rules{};
         std::vector<std::unique_ptr<Chassis>> chassisVec{};
         chassisVec.emplace_back(std::move(chassis));
         System system{std::move(rules), std::move(chassisVec)};

         // Call configure()
         chassisPtr->configure(services, system);
     }

     // Test where devices were specified in constructor
     {
         std::vector<std::unique_ptr<Device>> devices{};

         // Create mock services.  Expect logInfo() and logDebug() to be called.
         MockServices services{};
         MockJournal& journal = services.getMockJournal();
         EXPECT_CALL(journal, logInfo("Configuring chassis 2")).Times(1);
         EXPECT_CALL(journal, logDebug("Configuring vdd0_reg: volts=1.300000"))
             .Times(1);
         EXPECT_CALL(journal, logDebug("Configuring vdd1_reg: volts=1.200000"))
             .Times(1);
         EXPECT_CALL(journal, logError(A<const std::string&>())).Times(0);

         // Create Device vdd0_reg
         {
             // Create Configuration
             std::vector<std::unique_ptr<Action>> actions{};
             std::unique_ptr<Configuration> configuration =
                 std::make_unique<Configuration>(1.3, std::move(actions));

             // Create Device
             std::unique_ptr<i2c::I2CInterface> i2cInterface =
                 createI2CInterface();
             std::unique_ptr<PresenceDetection> presenceDetection{};
             std::unique_ptr<Device> device = std::make_unique<Device>(
                 "vdd0_reg", true,
                 "/xyz/openbmc_project/inventory/system/chassis/motherboard/"
                 "vdd0_reg",
                 std::move(i2cInterface), std::move(presenceDetection),
                 std::move(configuration));
             devices.emplace_back(std::move(device));
         }

         // Create Device vdd1_reg
         {
             // Create Configuration
             std::vector<std::unique_ptr<Action>> actions{};
             std::unique_ptr<Configuration> configuration =
                 std::make_unique<Configuration>(1.2, std::move(actions));

             // Create Device
             std::unique_ptr<i2c::I2CInterface> i2cInterface =
                 createI2CInterface();
             std::unique_ptr<PresenceDetection> presenceDetection{};
             std::unique_ptr<Device> device = std::make_unique<Device>(
                 "vdd1_reg", true,
                 "/xyz/openbmc_project/inventory/system/chassis/motherboard/"
                 "vdd1_reg",
                 std::move(i2cInterface), std::move(presenceDetection),
                 std::move(configuration));
             devices.emplace_back(std::move(device));
         }

         // Create Chassis
         std::unique_ptr<Chassis> chassis = std::make_unique<Chassis>(
             2, defaultInventoryPath, std::move(devices));
         Chassis* chassisPtr = chassis.get();

         // Create System that contains Chassis
         std::vector<std::unique_ptr<Rule>> rules{};
         std::vector<std::unique_ptr<Chassis>> chassisVec{};
         chassisVec.emplace_back(std::move(chassis));
         System system{std::move(rules), std::move(chassisVec)};

         // Call configure()
         chassisPtr->configure(services, system);
     }
 }

 TEST(ChassisTests, GetDevices)
 {
     // Test where no devices were specified in constructor
     {
         Chassis chassis{2, defaultInventoryPath};
         EXPECT_EQ(chassis.getDevices().size(), 0);
     }

     // Test where devices were specified in constructor
     {
         // Create vector of Device objects
         std::vector<std::unique_ptr<Device>> devices{};
         devices.emplace_back(createDevice("vdd_reg1"));
         devices.emplace_back(createDevice("vdd_reg2"));

         // Create Chassis
         Chassis chassis{1, defaultInventoryPath, std::move(devices)};
         EXPECT_EQ(chassis.getDevices().size(), 2);
         EXPECT_EQ(chassis.getDevices()[0]->getID(), "vdd_reg1");
         EXPECT_EQ(chassis.getDevices()[1]->getID(), "vdd_reg2");
     }
 }

 TEST(ChassisTests, GetInventoryPath)
 {
     Chassis chassis{3, defaultInventoryPath};
     EXPECT_EQ(chassis.getInventoryPath(), defaultInventoryPath);
 }

 TEST(ChassisTests, GetNumber)
 {
     Chassis chassis{3, defaultInventoryPath};
     EXPECT_EQ(chassis.getNumber(), 3);
 }

 TEST(ChassisTests, MonitorSensors)
 {
     // Test where no devices were specified in constructor
     {
         // Create mock services.  No Sensors methods should be called.
         MockServices services{};
         MockSensors& sensors = services.getMockSensors();
         EXPECT_CALL(sensors, startRail).Times(0);
         EXPECT_CALL(sensors, setValue).Times(0);
         EXPECT_CALL(sensors, endRail).Times(0);

         // Create Chassis
         std::unique_ptr<Chassis> chassis =
             std::make_unique<Chassis>(1, defaultInventoryPath);
         Chassis* chassisPtr = chassis.get();

         // Create System that contains Chassis
         std::vector<std::unique_ptr<Rule>> rules{};
         std::vector<std::unique_ptr<Chassis>> chassisVec{};
         chassisVec.emplace_back(std::move(chassis));
         System system{std::move(rules), std::move(chassisVec)};

         // Call monitorSensors().  Should do nothing.
         chassisPtr->monitorSensors(services, system);
     }

     // Test where devices were specified in constructor
     {
         // Create mock services.  Set Sensors service expectations.
         MockServices services{};
         MockSensors& sensors = services.getMockSensors();
         EXPECT_CALL(sensors, startRail("vdd0",
                                        "/xyz/openbmc_project/inventory/system/"
                                        "chassis/motherboard/vdd0_reg",
                                        defaultInventoryPath))
             .Times(1);
         EXPECT_CALL(sensors, startRail("vdd1",
                                        "/xyz/openbmc_project/inventory/system/"
                                        "chassis/motherboard/vdd1_reg",
                                        defaultInventoryPath))
             .Times(1);
         EXPECT_CALL(sensors, setValue).Times(0);
         EXPECT_CALL(sensors, endRail(false)).Times(2);

         std::vector<std::unique_ptr<Device>> devices{};

         // Create Device vdd0_reg
         {
             // Create SensorMonitoring for Rail
             std::unique_ptr<MockAction> action = std::make_unique<MockAction>();
             EXPECT_CALL(*action, execute).Times(1).WillOnce(Return(true));
             std::vector<std::unique_ptr<Action>> actions{};
             actions.emplace_back(std::move(action));
             std::unique_ptr<SensorMonitoring> sensorMonitoring =
                 std::make_unique<SensorMonitoring>(std::move(actions));

             // Create Rail
             std::unique_ptr<Configuration> configuration{};
             std::unique_ptr<Rail> rail = std::make_unique<Rail>(
                 "vdd0", std::move(configuration), std::move(sensorMonitoring));

             // Create Device
             std::unique_ptr<i2c::I2CInterface> i2cInterface =
                 createI2CInterface();
             std::unique_ptr<PresenceDetection> presenceDetection{};
             std::unique_ptr<Configuration> deviceConfiguration{};
             std::vector<std::unique_ptr<Rail>> rails{};
             rails.emplace_back(std::move(rail));
             std::unique_ptr<Device> device = std::make_unique<Device>(
                 "vdd0_reg", true,
                 "/xyz/openbmc_project/inventory/system/chassis/motherboard/"
                 "vdd0_reg",
                 std::move(i2cInterface), std::move(presenceDetection),
                 std::move(deviceConfiguration), std::move(rails));
             devices.emplace_back(std::move(device));
         }

         // Create Device vdd1_reg
         {
             // Create SensorMonitoring for Rail
             std::unique_ptr<MockAction> action = std::make_unique<MockAction>();
             EXPECT_CALL(*action, execute).Times(1).WillOnce(Return(true));
             std::vector<std::unique_ptr<Action>> actions{};
             actions.emplace_back(std::move(action));
             std::unique_ptr<SensorMonitoring> sensorMonitoring =
                 std::make_unique<SensorMonitoring>(std::move(actions));

             // Create Rail
             std::unique_ptr<Configuration> configuration{};
             std::unique_ptr<Rail> rail = std::make_unique<Rail>(
                 "vdd1", std::move(configuration), std::move(sensorMonitoring));

             // Create Device
             std::unique_ptr<i2c::I2CInterface> i2cInterface =
                 createI2CInterface();
             std::unique_ptr<PresenceDetection> presenceDetection{};
             std::unique_ptr<Configuration> deviceConfiguration{};
             std::vector<std::unique_ptr<Rail>> rails{};
             rails.emplace_back(std::move(rail));
             std::unique_ptr<Device> device = std::make_unique<Device>(
                 "vdd1_reg", true,
                 "/xyz/openbmc_project/inventory/system/chassis/motherboard/"
                 "vdd1_reg",
                 std::move(i2cInterface), std::move(presenceDetection),
                 std::move(deviceConfiguration), std::move(rails));
             devices.emplace_back(std::move(device));
         }

         // Create Chassis that contains Devices
         std::unique_ptr<Chassis> chassis = std::make_unique<Chassis>(
             2, defaultInventoryPath, std::move(devices));
         Chassis* chassisPtr = chassis.get();

         // Create System that contains Chassis
         std::vector<std::unique_ptr<Rule>> rules{};
         std::vector<std::unique_ptr<Chassis>> chassisVec{};
         chassisVec.emplace_back(std::move(chassis));
         System system{std::move(rules), std::move(chassisVec)};

         // Call monitorSensors()
         chassisPtr->monitorSensors(services, system);
     }
 }
	/**
	* Copyright © 2020 IBM Corporation
	*
	* 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.
	*/
	#include "action.hpp"
	#include "chassis.hpp"
	#include "configuration.hpp"
	#include "device.hpp"
	#include "i2c_interface.hpp"
	#include "id_map.hpp"
	#include "mock_action.hpp"
	#include "mock_error_logging.hpp"
	#include "mock_journal.hpp"
	#include "mock_sensors.hpp"
	#include "mock_services.hpp"
	#include "mocked_i2c_interface.hpp"
	#include "presence_detection.hpp"
	#include "rail.hpp"
	#include "rule.hpp"
	#include "sensor_monitoring.hpp"
	#include "sensors.hpp"
	#include "system.hpp"
	#include "test_sdbus_error.hpp"
	#include "test_utils.hpp"

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

	#include <gmock/gmock.h>
	#include <gtest/gtest.h>

	using namespace phosphor::power::regulators;
	using namespace phosphor::power::regulators::test_utils;

	using ::testing::A;
	using ::testing::Return;
	using ::testing::Throw;
	using ::testing::TypedEq;

	// Default chassis inventory path
	static const std::string defaultInventoryPath{
	"/xyz/openbmc_project/inventory/system/chassis"};

	TEST(ChassisTests, Constructor)
	{
	// Test where works: Only required parameters are specified
	{
	Chassis chassis{2, defaultInventoryPath};
	EXPECT_EQ(chassis.getNumber(), 2);
	EXPECT_EQ(chassis.getInventoryPath(), defaultInventoryPath);
	EXPECT_EQ(chassis.getDevices().size(), 0);
	}

	// Test where works: All parameters are specified
	{
	// Create vector of Device objects
	std::vector<std::unique_ptr<Device>> devices{};
	devices.emplace_back(createDevice("vdd_reg1"));
	devices.emplace_back(createDevice("vdd_reg2"));

	// Create Chassis
	Chassis chassis{1, defaultInventoryPath, std::move(devices)};
	EXPECT_EQ(chassis.getNumber(), 1);
	EXPECT_EQ(chassis.getInventoryPath(), defaultInventoryPath);
	EXPECT_EQ(chassis.getDevices().size(), 2);
	}

	// Test where fails: Invalid chassis number < 1
	try
	{
	Chassis chassis{0, defaultInventoryPath};
	ADD_FAILURE() << "Should not have reached this line.";
	}
	catch (const std::invalid_argument& e)
	{
	EXPECT_STREQ(e.what(), "Invalid chassis number: 0");
	}
	catch (...)
	{
	ADD_FAILURE() << "Should not have caught exception.";
	}
	}

	TEST(ChassisTests, AddToIDMap)
	{
	// Create vector of Device objects
	std::vector<std::unique_ptr<Device>> devices{};
	devices.emplace_back(createDevice("reg1", {"rail1"}));
	devices.emplace_back(createDevice("reg2", {"rail2a", "rail2b"}));
	devices.emplace_back(createDevice("reg3"));

	// Create Chassis
	Chassis chassis{1, defaultInventoryPath, std::move(devices)};

	// Add Device and Rail objects within the Chassis to an IDMap
	IDMap idMap{};
	chassis.addToIDMap(idMap);

	// Verify all Devices are in the IDMap
	EXPECT_NO_THROW(idMap.getDevice("reg1"));
	EXPECT_NO_THROW(idMap.getDevice("reg2"));
	EXPECT_NO_THROW(idMap.getDevice("reg3"));
	EXPECT_THROW(idMap.getDevice("reg4"), std::invalid_argument);

	// Verify all Rails are in the IDMap
	EXPECT_NO_THROW(idMap.getRail("rail1"));
	EXPECT_NO_THROW(idMap.getRail("rail2a"));
	EXPECT_NO_THROW(idMap.getRail("rail2b"));
	EXPECT_THROW(idMap.getRail("rail3"), std::invalid_argument);
	}

	TEST(ChassisTests, ClearCache)
	{
	// Create PresenceDetection
	std::vector<std::unique_ptr<Action>> actions{};
	std::unique_ptr<PresenceDetection> presenceDetection =
	std::make_unique<PresenceDetection>(std::move(actions));
	PresenceDetection* presenceDetectionPtr = presenceDetection.get();

	// Create Device that contains PresenceDetection
	std::unique_ptr<i2c::I2CInterface> i2cInterface = createI2CInterface();
	std::unique_ptr<Device> device = std::make_unique<Device>(
	"reg1", true,
	"/xyz/openbmc_project/inventory/system/chassis/motherboard/reg1",
	std::move(i2cInterface), std::move(presenceDetection));
	Device* devicePtr = device.get();

	// Create Chassis that contains Device
	std::vector<std::unique_ptr<Device>> devices{};
	devices.emplace_back(std::move(device));
	std::unique_ptr<Chassis> chassis =
	std::make_unique<Chassis>(1, defaultInventoryPath, std::move(devices));
	Chassis* chassisPtr = chassis.get();

	// Create System that contains Chassis
	std::vector<std::unique_ptr<Rule>> rules{};
	std::vector<std::unique_ptr<Chassis>> chassisVec{};
	chassisVec.emplace_back(std::move(chassis));
	System system{std::move(rules), std::move(chassisVec)};

	// Cache presence value in PresenceDetection
	MockServices services{};
	presenceDetectionPtr->execute(services, system, chassisPtr, devicePtr);
	EXPECT_TRUE(presenceDetectionPtr->getCachedPresence().has_value());

	// Clear cached data in Chassis
	chassisPtr->clearCache();

	// Verify presence value no longer cached in PresenceDetection
	EXPECT_FALSE(presenceDetectionPtr->getCachedPresence().has_value());
	}

	TEST(ChassisTests, ClearErrorHistory)
	{
	// Create SensorMonitoring. Will fail with a DBus exception.
	std::unique_ptr<MockAction> action = std::make_unique<MockAction>();
	EXPECT_CALL(*action, execute)
	.WillRepeatedly(Throw(TestSDBusError{"Unable to set sensor value"}));
	std::vector<std::unique_ptr<Action>> actions{};
	actions.emplace_back(std::move(action));
	std::unique_ptr<SensorMonitoring> sensorMonitoring =
	std::make_unique<SensorMonitoring>(std::move(actions));

	// Create Rail
	std::unique_ptr<Configuration> configuration{};
	std::unique_ptr<Rail> rail = std::make_unique<Rail>(
	"vddr1", std::move(configuration), std::move(sensorMonitoring));

	// Create Device that contains Rail
	std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
	std::make_unique<i2c::MockedI2CInterface>();
	std::unique_ptr<PresenceDetection> presenceDetection{};
	std::unique_ptr<Configuration> deviceConfiguration{};
	std::vector<std::unique_ptr<Rail>> rails{};
	rails.emplace_back(std::move(rail));
	std::unique_ptr<Device> device = std::make_unique<Device>(
	"reg1", true,
	"/xyz/openbmc_project/inventory/system/chassis/motherboard/reg1",
	std::move(i2cInterface), std::move(presenceDetection),
	std::move(deviceConfiguration), std::move(rails));

	// Create Chassis that contains Device
	std::vector<std::unique_ptr<Device>> devices{};
	devices.emplace_back(std::move(device));
	std::unique_ptr<Chassis> chassis =
	std::make_unique<Chassis>(1, defaultInventoryPath, std::move(devices));
	Chassis* chassisPtr = chassis.get();

	// Create System that contains Chassis
	std::vector<std::unique_ptr<Rule>> rules{};
	std::vector<std::unique_ptr<Chassis>> chassisVec{};
	chassisVec.emplace_back(std::move(chassis));
	System system{std::move(rules), std::move(chassisVec)};

	// Create mock services
	MockServices services{};

	// Expect Sensors service to be called 5+5=10 times
	MockSensors& sensors = services.getMockSensors();
	EXPECT_CALL(sensors, startRail).Times(10);
	EXPECT_CALL(sensors, setValue).Times(0);
	EXPECT_CALL(sensors, endRail).Times(10);

	// Expect Journal service to be called 3+3=6 times to log error messages
	MockJournal& journal = services.getMockJournal();
	EXPECT_CALL(journal, logError(A<const std::vector<std::string>&>()))
	.Times(6);
	EXPECT_CALL(journal, logError(A<const std::string&>())).Times(6);

	// Expect ErrorLogging service to be called 1+1=2 times to log a DBus error
	MockErrorLogging& errorLogging = services.getMockErrorLogging();
	EXPECT_CALL(errorLogging, logDBusError).Times(2);

	// Monitor sensors 5 times. Should fail every time, write to journal 3
	// times, and log one error.
	for (int i = 1; i <= 5; ++i)
	{
	chassisPtr->monitorSensors(services, system);
	}

	// Clear error history
	chassisPtr->clearErrorHistory();

	// Monitor sensors 5 times again. Should fail every time, write to journal
	// 3 times, and log one error.
	for (int i = 1; i <= 5; ++i)
	{
	chassisPtr->monitorSensors(services, system);
	}
	}

	TEST(ChassisTests, CloseDevices)
	{
	// Test where no devices were specified in constructor
	{
	// Create mock services. Expect logDebug() to be called.
	MockServices services{};
	MockJournal& journal = services.getMockJournal();
	EXPECT_CALL(journal, logDebug("Closing devices in chassis 2")).Times(1);

	// Create Chassis
	Chassis chassis{2, defaultInventoryPath};

	// Call closeDevices()
	chassis.closeDevices(services);
	}

	// Test where devices were specified in constructor
	{
	std::vector<std::unique_ptr<Device>> devices{};

	// Create mock services. Expect logDebug() to be called.
	MockServices services{};
	MockJournal& journal = services.getMockJournal();
	EXPECT_CALL(journal, logDebug("Closing devices in chassis 1")).Times(1);

	// Create Device vdd0_reg
	{
	// Create mock I2CInterface: isOpen() and close() should be called
	std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
	std::make_unique<i2c::MockedI2CInterface>();
	EXPECT_CALL(*i2cInterface, isOpen).Times(1).WillOnce(Return(true));
	EXPECT_CALL(*i2cInterface, close).Times(1);

	// Create Device
	std::unique_ptr<Device> device =
	std::make_unique<Device>("vdd0_reg", true,
	"/xyz/openbmc_project/inventory/"
	"system/chassis/motherboard/vdd0_reg",
	std::move(i2cInterface));
	devices.emplace_back(std::move(device));
	}

	// Create Device vdd1_reg
	{
	// Create mock I2CInterface: isOpen() and close() should be called
	std::unique_ptr<i2c::MockedI2CInterface> i2cInterface =
	std::make_unique<i2c::MockedI2CInterface>();
	EXPECT_CALL(*i2cInterface, isOpen).Times(1).WillOnce(Return(true));
	EXPECT_CALL(*i2cInterface, close).Times(1);

	// Create Device
	std::unique_ptr<Device> device =
	std::make_unique<Device>("vdd1_reg", true,
	"/xyz/openbmc_project/inventory/"
	"system/chassis/motherboard/vdd1_reg",
	std::move(i2cInterface));
	devices.emplace_back(std::move(device));
	}

	// Create Chassis
	Chassis chassis{1, defaultInventoryPath, std::move(devices)};

	// Call closeDevices()
	chassis.closeDevices(services);
	}
	}

	TEST(ChassisTests, Configure)
	{
	// Test where no devices were specified in constructor
	{
	// Create mock services. Expect logInfo() to be called.
	MockServices services{};
	MockJournal& journal = services.getMockJournal();
	EXPECT_CALL(journal, logInfo("Configuring chassis 1")).Times(1);
	EXPECT_CALL(journal, logDebug(A<const std::string&>())).Times(0);
	EXPECT_CALL(journal, logError(A<const std::string&>())).Times(0);

	// Create Chassis
	std::unique_ptr<Chassis> chassis =
	std::make_unique<Chassis>(1, defaultInventoryPath);
	Chassis* chassisPtr = chassis.get();

	// Create System that contains Chassis
	std::vector<std::unique_ptr<Rule>> rules{};
	std::vector<std::unique_ptr<Chassis>> chassisVec{};
	chassisVec.emplace_back(std::move(chassis));
	System system{std::move(rules), std::move(chassisVec)};

	// Call configure()
	chassisPtr->configure(services, system);
	}

	// Test where devices were specified in constructor
	{
	std::vector<std::unique_ptr<Device>> devices{};

	// Create mock services. Expect logInfo() and logDebug() to be called.
	MockServices services{};
	MockJournal& journal = services.getMockJournal();
	EXPECT_CALL(journal, logInfo("Configuring chassis 2")).Times(1);
	EXPECT_CALL(journal, logDebug("Configuring vdd0_reg: volts=1.300000"))
	.Times(1);
	EXPECT_CALL(journal, logDebug("Configuring vdd1_reg: volts=1.200000"))
	.Times(1);
	EXPECT_CALL(journal, logError(A<const std::string&>())).Times(0);

	// Create Device vdd0_reg
	{
	// Create Configuration
	std::vector<std::unique_ptr<Action>> actions{};
	std::unique_ptr<Configuration> configuration =
	std::make_unique<Configuration>(1.3, std::move(actions));

	// Create Device
	std::unique_ptr<i2c::I2CInterface> i2cInterface =
	createI2CInterface();
	std::unique_ptr<PresenceDetection> presenceDetection{};
	std::unique_ptr<Device> device = std::make_unique<Device>(
	"vdd0_reg", true,
	"/xyz/openbmc_project/inventory/system/chassis/motherboard/"
	"vdd0_reg",
	std::move(i2cInterface), std::move(presenceDetection),
	std::move(configuration));
	devices.emplace_back(std::move(device));
	}

	// Create Device vdd1_reg
	{
	// Create Configuration
	std::vector<std::unique_ptr<Action>> actions{};
	std::unique_ptr<Configuration> configuration =
	std::make_unique<Configuration>(1.2, std::move(actions));

	// Create Device
	std::unique_ptr<i2c::I2CInterface> i2cInterface =
	createI2CInterface();
	std::unique_ptr<PresenceDetection> presenceDetection{};
	std::unique_ptr<Device> device = std::make_unique<Device>(
	"vdd1_reg", true,
	"/xyz/openbmc_project/inventory/system/chassis/motherboard/"
	"vdd1_reg",
	std::move(i2cInterface), std::move(presenceDetection),
	std::move(configuration));
	devices.emplace_back(std::move(device));
	}

	// Create Chassis
	std::unique_ptr<Chassis> chassis = std::make_unique<Chassis>(
	2, defaultInventoryPath, std::move(devices));
	Chassis* chassisPtr = chassis.get();

	// Create System that contains Chassis
	std::vector<std::unique_ptr<Rule>> rules{};
	std::vector<std::unique_ptr<Chassis>> chassisVec{};
	chassisVec.emplace_back(std::move(chassis));
	System system{std::move(rules), std::move(chassisVec)};

	// Call configure()
	chassisPtr->configure(services, system);
	}
	}

	TEST(ChassisTests, GetDevices)
	{
	// Test where no devices were specified in constructor
	{
	Chassis chassis{2, defaultInventoryPath};
	EXPECT_EQ(chassis.getDevices().size(), 0);
	}

	// Test where devices were specified in constructor
	{
	// Create vector of Device objects
	std::vector<std::unique_ptr<Device>> devices{};
	devices.emplace_back(createDevice("vdd_reg1"));
	devices.emplace_back(createDevice("vdd_reg2"));

	// Create Chassis
	Chassis chassis{1, defaultInventoryPath, std::move(devices)};
	EXPECT_EQ(chassis.getDevices().size(), 2);
	EXPECT_EQ(chassis.getDevices()[0]->getID(), "vdd_reg1");
	EXPECT_EQ(chassis.getDevices()[1]->getID(), "vdd_reg2");
	}
	}

	TEST(ChassisTests, GetInventoryPath)
	{
	Chassis chassis{3, defaultInventoryPath};
	EXPECT_EQ(chassis.getInventoryPath(), defaultInventoryPath);
	}

	TEST(ChassisTests, GetNumber)
	{
	Chassis chassis{3, defaultInventoryPath};
	EXPECT_EQ(chassis.getNumber(), 3);
	}

	TEST(ChassisTests, MonitorSensors)
	{
	// Test where no devices were specified in constructor
	{
	// Create mock services. No Sensors methods should be called.
	MockServices services{};
	MockSensors& sensors = services.getMockSensors();
	EXPECT_CALL(sensors, startRail).Times(0);
	EXPECT_CALL(sensors, setValue).Times(0);
	EXPECT_CALL(sensors, endRail).Times(0);

	// Create Chassis
	std::unique_ptr<Chassis> chassis =
	std::make_unique<Chassis>(1, defaultInventoryPath);
	Chassis* chassisPtr = chassis.get();

	// Create System that contains Chassis
	std::vector<std::unique_ptr<Rule>> rules{};
	std::vector<std::unique_ptr<Chassis>> chassisVec{};
	chassisVec.emplace_back(std::move(chassis));
	System system{std::move(rules), std::move(chassisVec)};

	// Call monitorSensors(). Should do nothing.
	chassisPtr->monitorSensors(services, system);
	}

	// Test where devices were specified in constructor
	{
	// Create mock services. Set Sensors service expectations.
	MockServices services{};
	MockSensors& sensors = services.getMockSensors();
	EXPECT_CALL(sensors, startRail("vdd0",
	"/xyz/openbmc_project/inventory/system/"
	"chassis/motherboard/vdd0_reg",
	defaultInventoryPath))
	.Times(1);
	EXPECT_CALL(sensors, startRail("vdd1",
	"/xyz/openbmc_project/inventory/system/"
	"chassis/motherboard/vdd1_reg",
	defaultInventoryPath))
	.Times(1);
	EXPECT_CALL(sensors, setValue).Times(0);
	EXPECT_CALL(sensors, endRail(false)).Times(2);

	std::vector<std::unique_ptr<Device>> devices{};

	// Create Device vdd0_reg
	{
	// Create SensorMonitoring for Rail
	std::unique_ptr<MockAction> action = std::make_unique<MockAction>();
	EXPECT_CALL(*action, execute).Times(1).WillOnce(Return(true));
	std::vector<std::unique_ptr<Action>> actions{};
	actions.emplace_back(std::move(action));
	std::unique_ptr<SensorMonitoring> sensorMonitoring =
	std::make_unique<SensorMonitoring>(std::move(actions));

	// Create Rail
	std::unique_ptr<Configuration> configuration{};
	std::unique_ptr<Rail> rail = std::make_unique<Rail>(
	"vdd0", std::move(configuration), std::move(sensorMonitoring));

	// Create Device
	std::unique_ptr<i2c::I2CInterface> i2cInterface =
	createI2CInterface();
	std::unique_ptr<PresenceDetection> presenceDetection{};
	std::unique_ptr<Configuration> deviceConfiguration{};
	std::vector<std::unique_ptr<Rail>> rails{};
	rails.emplace_back(std::move(rail));
	std::unique_ptr<Device> device = std::make_unique<Device>(
	"vdd0_reg", true,
	"/xyz/openbmc_project/inventory/system/chassis/motherboard/"
	"vdd0_reg",
	std::move(i2cInterface), std::move(presenceDetection),
	std::move(deviceConfiguration), std::move(rails));
	devices.emplace_back(std::move(device));
	}

	// Create Device vdd1_reg
	{
	// Create SensorMonitoring for Rail
	std::unique_ptr<MockAction> action = std::make_unique<MockAction>();
	EXPECT_CALL(*action, execute).Times(1).WillOnce(Return(true));
	std::vector<std::unique_ptr<Action>> actions{};
	actions.emplace_back(std::move(action));
	std::unique_ptr<SensorMonitoring> sensorMonitoring =
	std::make_unique<SensorMonitoring>(std::move(actions));

	// Create Rail
	std::unique_ptr<Configuration> configuration{};
	std::unique_ptr<Rail> rail = std::make_unique<Rail>(
	"vdd1", std::move(configuration), std::move(sensorMonitoring));

	// Create Device
	std::unique_ptr<i2c::I2CInterface> i2cInterface =
	createI2CInterface();
	std::unique_ptr<PresenceDetection> presenceDetection{};
	std::unique_ptr<Configuration> deviceConfiguration{};
	std::vector<std::unique_ptr<Rail>> rails{};
	rails.emplace_back(std::move(rail));
	std::unique_ptr<Device> device = std::make_unique<Device>(
	"vdd1_reg", true,
	"/xyz/openbmc_project/inventory/system/chassis/motherboard/"
	"vdd1_reg",
	std::move(i2cInterface), std::move(presenceDetection),
	std::move(deviceConfiguration), std::move(rails));
	devices.emplace_back(std::move(device));
	}

	// Create Chassis that contains Devices
	std::unique_ptr<Chassis> chassis = std::make_unique<Chassis>(
	2, defaultInventoryPath, std::move(devices));
	Chassis* chassisPtr = chassis.get();

	// Create System that contains Chassis
	std::vector<std::unique_ptr<Rule>> rules{};
	std::vector<std::unique_ptr<Chassis>> chassisVec{};
	chassisVec.emplace_back(std::move(chassis));
	System system{std::move(rules), std::move(chassisVec)};

	// Call monitorSensors()
	chassisPtr->monitorSensors(services, system);
	}
	}