AI 自动生成测试用例

CMakeLists.txt

@@ -1,9 +1,8 @@
-cmake_minimum_required(VERSION 3.10)
+cmake_minimum_required(VERSION 3.10.0)
 project(HeightMeasurementSystem VERSION 1.0.0 LANGUAGES CXX)
 
-set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CMAKE_CXX_EXTENSIONS OFF)
 
 # Output directories
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
@@ -12,26 +11,7 @@ set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 
 # Include directories
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 
-# Main executable
-add_executable(hsm_main
-    src/main.cpp
-    src/app.cpp
-    src/altitude_calculator.cpp
-    src/data_logger.cpp
-    src/sensor_simulator.cpp
-    src/alert_manager.cpp
-)
-
-# Test executable
-add_executable(hsm_test
-    tests/basic_test.cpp
-    src/altitude_calculator.cpp
-    src/data_logger.cpp
-    src/sensor_simulator.cpp
-    src/alert_manager.cpp
-)
-
-# Enable testing
-enable_testing()
-add_test(NAME BasicTest COMMAND hsm_test)
+# Add subdirectory for tests
+add_subdirectory(tests)

CMakeLists1.txt

@@ -0,0 +1,37 @@
+cmake_minimum_required(VERSION 3.10)
+project(HeightMeasurementSystem VERSION 1.0.0 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+# Output directories
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
+
+# Include directories
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
+
+# Main executable
+add_executable(hsm_main
+    src/main.cpp
+    src/app.cpp
+    src/altitude_calculator.cpp
+    src/data_logger.cpp
+    src/sensor_simulator.cpp
+    src/alert_manager.cpp
+)
+
+# Test executable
+add_executable(hsm_test
+    tests/basic_test.cpp
+    src/altitude_calculator.cpp
+    src/data_logger.cpp
+    src/sensor_simulator.cpp
+    src/alert_manager.cpp
+)
+
+# Enable testing
+enable_testing()
+add_test(NAME BasicTest COMMAND hsm_test)

include/alert_manager.hpp

@@ -5,6 +5,8 @@
 #include <string>
 #include <vector>
 #include <memory>
+#include <unordered_map>
+#include <utility>
 
 /**
  * @brief 预警类型枚举
@@ -188,6 +190,14 @@ public:
      */
     float getLowerThreshold() const { return lower_threshold_; }
     
+    /**
+     * @brief 获取高度阈值（上下限）
+     * @return pair<上限阈值, 下限阈值>
+     */
+    std::pair<float, float> getAltitudeThresholds() const { 
+        return std::make_pair(upper_threshold_, lower_threshold_); 
+    }
+    
     /**
      * @brief 检查传感器是否正常
      * @return 传感器状态
@@ -196,26 +206,6 @@ public:
         auto it = alerts_.find(AlertType::SENSOR_FAILURE);
         return it == alerts_.end() || it->second.status != AlertStatus::ACTIVE;
     }
-
-private:
-    // 预警阈值
-    float upper_threshold_;
-    float lower_threshold_;
-    
-    // 当前预警状态
-    std::unordered_map<AlertType, AlertInfo> alerts_;
-    
-    // 预警历史记录
-    std::vector<AlertInfo> alert_history_;
-    
-    // 历史记录最大数量
-    static const size_t MAX_HISTORY = 1000;
-    
-    /**
-     * @brief 添加预警到历史记录
-     * @param alert 预警信息
-     */
-    void addToHistory(const AlertInfo& alert);
     
     /**
      * @brief 触发预警
@@ -246,6 +236,26 @@ private:
      * @return 状态名称
      */
     static std::string getAlertStatusName(AlertStatus status);
+
+private:
+    // 预警阈值
+    float upper_threshold_;
+    float lower_threshold_;
+    
+    // 当前预警状态
+    std::unordered_map<AlertType, AlertInfo> alerts_;
+    
+    // 预警历史记录
+    std::vector<AlertInfo> alert_history_;
+    
+    // 历史记录最大数量
+    static const size_t MAX_HISTORY = 1000;
+    
+    /**
+     * @brief 添加预警到历史记录
+     * @param alert 预警信息
+     */
+    void addToHistory(const AlertInfo& alert);
 };
 
 #endif // HSM_ALERT_MANAGER_HPP

src/alert_manager.cpp

@@ -288,7 +288,7 @@ std::string AlertManager::getAlertStatusName(AlertStatus status) {
         case AlertStatus::INACTIVE: return "未激活";
         case AlertStatus::ACTIVE: return "预警中";
         case AlertStatus::ACKNOWLEDGED: return "已确认";
-        case AlertType::RESOLVED: return "已解决";
+        case AlertStatus::RESOLVED: return "已解决";
         default: return "未知状态";
     }
 }

tests/CMakeLists.txt

@@ -0,0 +1,25 @@
+cmake_minimum_required(VERSION 3.10.0)
+project(CppGenerate_test)
+include(FetchContent)
+if (MSVC)
+    add_compile_options(/utf-8)
+endif()
+FetchContent_Declare(
+  googletest
+  URL https://github.com/google/googletest/archive/03597a01ee50ed33e9dfd640b249b4be3799d395.zip
+)
+# For Windows: Prevent overriding the parent project's compiler/linker settings
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+FetchContent_MakeAvailable(googletest)
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../include)
+
+include(CTest)
+enable_testing()
+
+add_executable(CppGenerate_test test_alert_manager.cpp ../src/alert_manager.cpp)
+
+target_link_libraries(CppGenerate_test gtest gmock gtest_main)
+include(GoogleTest)
+gtest_discover_tests(CppGenerate_test)

tests/test_alert_manager.cpp

@@ -0,0 +1,510 @@
+#include "gtest/gtest.h"
+#include "alert_manager.hpp"
+#include <vector>
+#include <string>
+
+using namespace std;
+
+// Mock time function for deterministic testing
+uint32_t mock_timestamp = 1000;
+uint32_t getMockTimestamp() { return mock_timestamp; }
+
+// Override the real time function with mock
+uint32_t getCurrentTime() { return getMockTimestamp(); }
+
+// Test fixture for AlertManager
+class AlertManagerTest : public ::testing::Test {
+protected:
+    AlertManager alert_manager;
+
+    void SetUp() override {
+        // Reset mock timestamp
+        mock_timestamp = 1000;
+        alert_manager.initialize();
+    }
+
+    void advanceTime(uint32_t seconds) {
+        mock_timestamp += seconds;
+    }
+};
+
+// Test checkAltitudeAlert - Normal Input
+TEST_F(AlertManagerTest, testCheckAltitudeAlertNormalInput) {
+    // Arrange
+    float altitude = 90.0f; // Below upper threshold
+    
+    // Act
+    alert_manager.checkAltitudeAlert(altitude, getMockTimestamp());
+    
+    // Assert
+    EXPECT_FALSE(alert_manager.hasActiveAlerts());
+}
+
+// Test checkAltitudeAlert - Upper Threshold Exceeded
+TEST_F(AlertManagerTest, testCheckAltitudeAlertUpperThresholdExceeded) {
+    // Arrange
+    float altitude = 105.0f; // Above upper threshold
+    
+    // Act
+    alert_manager.checkAltitudeAlert(altitude, getMockTimestamp());
+    
+    // Assert
+    EXPECT_TRUE(alert_manager.hasActiveAlerts());
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::ALTITUDE_UPPER);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::ACTIVE);
+}
+
+// Test checkAltitudeAlert - Lower Threshold Exceeded
+TEST_F(AlertManagerTest, testCheckAltitudeAlertLowerThresholdExceeded) {
+    // Arrange
+    float altitude = -60.0f; // Below lower threshold
+    
+    // Act
+    alert_manager.checkAltitudeAlert(altitude, getMockTimestamp());
+    
+    // Assert
+    EXPECT_TRUE(alert_manager.hasActiveAlerts());
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::ALTITUDE_LOWER);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::ACTIVE);
+}
+
+// Test checkAltitudeAlert - Recovery from Upper Threshold
+TEST_F(AlertManagerTest, testCheckAltitudeAlertRecoveryFromUpper) {
+    // Arrange
+    float altitude_high = 105.0f;
+    float altitude_low = 90.0f;
+    
+    // Act
+    alert_manager.checkAltitudeAlert(altitude_high, getMockTimestamp());
+    alert_manager.checkAltitudeAlert(altitude_low, getMockTimestamp());
+    
+    // Assert
+    EXPECT_FALSE(alert_manager.hasActiveAlerts());
+}
+
+// Test checkAltitudeAlert - Recovery from Lower Threshold
+TEST_F(AlertManagerTest, testCheckAltitudeAlertRecoveryFromLower) {
+    // Arrange
+    float altitude_low = -60.0f;
+    float altitude_high = -40.0f;
+    
+    // Act
+    alert_manager.checkAltitudeAlert(altitude_low, getMockTimestamp());
+    alert_manager.checkAltitudeAlert(altitude_high, getMockTimestamp());
+    
+    // Assert
+    EXPECT_FALSE(alert_manager.hasActiveAlerts());
+}
+
+// Test setAltitudeThresholds - Valid Thresholds
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsValidThresholds) {
+    // Arrange
+    float upper = 150.0f;
+    float lower = -100.0f;
+    
+    // Act
+    alert_manager.setAltitudeThresholds(upper, lower);
+    
+    // Assert
+    EXPECT_EQ(alert_manager.getAltitudeThresholds().first, upper);
+    EXPECT_EQ(alert_manager.getAltitudeThresholds().second, lower);
+}
+
+// Test setAltitudeThresholds - Invalid Thresholds (upper <= lower)
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsInvalidThresholds) {
+    // Arrange
+    float upper = 100.0f;
+    float lower = 100.0f;
+    
+    // Act & Assert
+    EXPECT_NO_THROW(alert_manager.setAltitudeThresholds(upper, lower));
+    // Error message should be printed but not throw exception
+}
+
+// Test triggerSensorFailure - Normal Operation
+TEST_F(AlertManagerTest, testTriggerSensorFailureNormalOperation) {
+    // Arrange
+    uint32_t timestamp = getMockTimestamp();
+    
+    // Act
+    alert_manager.triggerSensorFailure(timestamp);
+    
+    // Assert
+    EXPECT_TRUE(alert_manager.hasActiveAlerts());
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::SENSOR_FAILURE);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::ACTIVE);
+}
+
+// Test triggerLowBattery - Normal Operation
+TEST_F(AlertManagerTest, testTriggerLowBatteryNormalOperation) {
+    // Arrange
+    uint32_t timestamp = getMockTimestamp();
+    float battery_level = 15.0f;
+    
+    // Act
+    alert_manager.triggerLowBattery(timestamp, battery_level);
+    
+    // Assert
+    EXPECT_TRUE(alert_manager.hasActiveAlerts());
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::LOW_BATTERY);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::ACTIVE);
+    EXPECT_NE(active_alerts[0].description.find("低电量警告"), string::npos);
+}
+
+// Test triggerCommunicationError - Normal Operation
+TEST_F(AlertManagerTest, testTriggerCommunicationErrorNormalOperation) {
+    // Arrange
+    uint32_t timestamp = getMockTimestamp();
+    
+    // Act
+    alert_manager.triggerCommunicationError(timestamp);
+    
+    // Assert
+    EXPECT_TRUE(alert_manager.hasActiveAlerts());
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::COMMUNICATION_ERROR);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::ACTIVE);
+}
+
+// Test acknowledgeAllAlerts - Acknowledge All Active Alerts
+TEST_F(AlertManagerTest, testAcknowledgeAllAlertsAcknowledgeAllActive) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    alert_manager.triggerLowBattery(getMockTimestamp(), 10.0f);
+    
+    // Act
+    alert_manager.acknowledgeAllAlerts(getMockTimestamp());
+    
+    // Assert
+    EXPECT_FALSE(alert_manager.hasUnacknowledgedAlerts());
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 2);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::ACKNOWLEDGED);
+    EXPECT_EQ(active_alerts[1].status, AlertStatus::ACKNOWLEDGED);
+}
+
+// Test acknowledgeAlert - Acknowledge Specific Alert
+TEST_F(AlertManagerTest, testAcknowledgeAlertAcknowledgeSpecific) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    
+    // Act
+    alert_manager.acknowledgeAlert(AlertType::SENSOR_FAILURE, getMockTimestamp());
+    
+    // Assert
+    EXPECT_FALSE(alert_manager.hasUnacknowledgedAlerts());
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::ACKNOWLEDGED);
+}
+
+// Test acknowledgeAlert - Non-Existing Alert
+TEST_F(AlertManagerTest, testAcknowledgeAlertNonExistingAlert) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    
+    // Act
+    alert_manager.acknowledgeAlert(AlertType::COMMUNICATION_ERROR, getMockTimestamp());
+    
+    // Assert
+    EXPECT_TRUE(alert_manager.hasActiveAlerts());
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::ACTIVE);
+}
+
+// Test resetAlert - Reset Existing Alert
+TEST_F(AlertManagerTest, testResetAlertResetExisting) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    
+    // Act
+    alert_manager.resetAlert(AlertType::SENSOR_FAILURE);
+    
+    // Assert
+    EXPECT_FALSE(alert_manager.hasActiveAlerts());
+    EXPECT_FALSE(alert_manager.hasUnacknowledgedAlerts());
+}
+
+// Test resetAlert - Reset Non-Existing Alert
+TEST_F(AlertManagerTest, testResetAlertResetNonExisting) {
+    // Arrange
+    
+    // Act
+    alert_manager.resetAlert(AlertType::COMMUNICATION_ERROR);
+    
+    // Assert
+    EXPECT_FALSE(alert_manager.hasActiveAlerts());
+    EXPECT_FALSE(alert_manager.hasUnacknowledgedAlerts());
+}
+
+// Test resetAllAlerts - Reset All Alerts
+TEST_F(AlertManagerTest, testResetAllAlertsResetAll) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    alert_manager.triggerLowBattery(getMockTimestamp(), 10.0f);
+    
+    // Act
+    alert_manager.resetAllAlerts();
+    
+    // Assert
+    EXPECT_FALSE(alert_manager.hasActiveAlerts());
+    EXPECT_FALSE(alert_manager.hasUnacknowledgedAlerts());
+}
+
+// Test hasActiveAlerts - No Active Alerts
+TEST_F(AlertManagerTest, testHasActiveAlertsNoActiveAlerts) {
+    // Arrange
+    
+    // Act
+    bool result = alert_manager.hasActiveAlerts();
+    
+    // Assert
+    EXPECT_FALSE(result);
+}
+
+// Test hasActiveAlerts - With Active Alerts
+TEST_F(AlertManagerTest, testHasActiveAlertsWithActiveAlerts) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    
+    // Act
+    bool result = alert_manager.hasActiveAlerts();
+    
+    // Assert
+    EXPECT_TRUE(result);
+}
+
+// Test hasUnacknowledgedAlerts - No Unacknowledged Alerts
+TEST_F(AlertManagerTest, testHasUnacknowledgedAlertsNoUnacknowledgedAlerts) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    alert_manager.acknowledgeAllAlerts(getMockTimestamp());
+    
+    // Act
+    bool result = alert_manager.hasUnacknowledgedAlerts();
+    
+    // Assert
+    EXPECT_FALSE(result);
+}
+
+// Test hasUnacknowledgedAlerts - With Unacknowledged Alerts
+TEST_F(AlertManagerTest, testHasUnacknowledgedAlertsWithUnacknowledgedAlerts) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    
+    // Act
+    bool result = alert_manager.hasUnacknowledgedAlerts();
+    
+    // Assert
+    EXPECT_TRUE(result);
+}
+
+// Test getActiveAlerts - Empty List
+TEST_F(AlertManagerTest, testGetActiveAlertsEmptyList) {
+    // Arrange
+    
+    // Act
+    vector<AlertInfo> result = alert_manager.getActiveAlerts();
+    
+    // Assert
+    EXPECT_EQ(result.size(), 0);
+}
+
+// Test getActiveAlerts - With Active Alerts
+TEST_F(AlertManagerTest, testGetActiveAlertsWithActiveAlerts) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    
+    // Act
+    vector<AlertInfo> result = alert_manager.getActiveAlerts();
+    
+    // Assert
+    EXPECT_EQ(result.size(), 1);
+    EXPECT_EQ(result[0].type, AlertType::SENSOR_FAILURE);
+    EXPECT_EQ(result[0].status, AlertStatus::ACTIVE);
+}
+
+// Test getAlertHistory - Max Count Greater Than History Size
+TEST_F(AlertManagerTest, testGetAlertHistoryMaxCountGreaterThanHistorySize) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    alert_manager.triggerLowBattery(getMockTimestamp(), 10.0f);
+    
+    // Act
+    vector<AlertInfo> result = alert_manager.getAlertHistory(5);
+    
+    // Assert
+    EXPECT_EQ(result.size(), 2);
+}
+
+// Test getAlertHistory - Max Count Less Than History Size
+TEST_F(AlertManagerTest, testGetAlertHistoryMaxCountLessThanHistorySize) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    alert_manager.triggerLowBattery(getMockTimestamp(), 10.0f);
+    alert_manager.triggerCommunicationError(getMockTimestamp());
+    
+    // Act
+    vector<AlertInfo> result = alert_manager.getAlertHistory(2);
+    
+    // Assert
+    EXPECT_EQ(result.size(), 2);
+    EXPECT_EQ(result[0].type, AlertType::COMMUNICATION_ERROR);
+    EXPECT_EQ(result[1].type, AlertType::LOW_BATTERY);
+}
+
+// Test getStatusDescription - No Active Alerts
+TEST_F(AlertManagerTest, testGetStatusDescriptionNoActiveAlerts) {
+    // Arrange
+    
+    // Act
+    string result = alert_manager.getStatusDescription();
+    
+    // Assert
+    EXPECT_EQ(result, "系统状态：正常");
+}
+
+// Test getStatusDescription - With Active Alerts
+TEST_F(AlertManagerTest, testGetStatusDescriptionWithActiveAlerts) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    
+    // Act
+    string result = alert_manager.getStatusDescription();
+    
+    // Assert
+    EXPECT_NE(result.find("系统状态：有1个活动预警"), string::npos);
+    EXPECT_NE(result.find("传感器故障"), string::npos);
+}
+
+// Test clearHistory - Clear All History
+TEST_F(AlertManagerTest, testClearHistoryClearAll) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    alert_manager.triggerLowBattery(getMockTimestamp(), 10.0f);
+    
+    // Act
+    alert_manager.clearHistory();
+    
+    // Assert
+    EXPECT_EQ(alert_manager.getAlertHistory(10).size(), 0);
+}
+
+// Test addToHistory - Add to History
+TEST_F(AlertManagerTest, testAddToHistoryAddToHistory) {
+    // Arrange
+    AlertInfo alert;
+    alert.type = AlertType::SENSOR_FAILURE;
+    alert.status = AlertStatus::ACTIVE;
+    alert.trigger_time = getMockTimestamp();
+    alert.description = "Test alert";
+    
+    // Act
+    alert_manager.addToHistory(alert);
+    
+    // Assert
+    EXPECT_EQ(alert_manager.getAlertHistory(1).size(), 1);
+}
+
+// Test triggerAlert - Trigger New Alert
+TEST_F(AlertManagerTest, testTriggerAlertTriggerNewAlert) {
+    // Arrange
+    uint32_t timestamp = getMockTimestamp();
+    string description = "Test trigger";
+    
+    // Act
+    alert_manager.triggerAlert(AlertType::SENSOR_FAILURE, timestamp, description);
+    
+    // Assert
+    EXPECT_TRUE(alert_manager.hasActiveAlerts());
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::SENSOR_FAILURE);
+    EXPECT_EQ(active_alerts[0].description, description);
+}
+
+// Test updateAlertStatus - Update to Acknowledged
+TEST_F(AlertManagerTest, testUpdateAlertStatusUpdateToAcknowledged) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    
+    // Act
+    alert_manager.updateAlertStatus(AlertType::SENSOR_FAILURE, AlertStatus::ACKNOWLEDGED, getMockTimestamp());
+    
+    // Assert
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::ACKNOWLEDGED);
+}
+
+// Test updateAlertStatus - Update to Resolved
+TEST_F(AlertManagerTest, testUpdateAlertStatusUpdateToResolved) {
+    // Arrange
+    alert_manager.triggerSensorFailure(getMockTimestamp());
+    
+    // Act
+    alert_manager.updateAlertStatus(AlertType::SENSOR_FAILURE, AlertStatus::RESOLVED, getMockTimestamp());
+    
+    // Assert
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::RESOLVED);
+}
+
+// Test getAlertTypeName - Valid Type
+TEST_F(AlertManagerTest, testGetAlertTypeNameValidType) {
+    // Arrange
+    AlertType type = AlertType::ALTITUDE_UPPER;
+    
+    // Act
+    string result = alert_manager.getAlertTypeName(type);
+    
+    // Assert
+    EXPECT_EQ(result, "高度上限预警");
+}
+
+// Test getAlertTypeName - Unknown Type
+TEST_F(AlertManagerTest, testGetAlertTypeNameUnknownType) {
+    // Arrange
+    AlertType type = static_cast<AlertType>(999);
+    
+    // Act
+    string result = alert_manager.getAlertTypeName(type);
+    
+    // Assert
+    EXPECT_EQ(result, "未知预警");
+}
+
+// Test getAlertStatusName - Valid Status
+TEST_F(AlertManagerTest, testGetAlertStatusNameValidStatus) {
+    // Arrange
+    AlertStatus status = AlertStatus::ACTIVE;
+    
+    // Act
+    string result = alert_manager.getAlertStatusName(status);
+    
+    // Assert
+    EXPECT_EQ(result, "预警中");
+}
+
+// Test getAlertStatusName - Unknown Status
+TEST_F(AlertManagerTest, testGetAlertStatusNameUnknownStatus) {
+    // Arrange
+    AlertStatus status = static_cast<AlertStatus>(999);
+    
+    // Act
+    string result = alert_manager.getAlertStatusName(status);
+    
+    // Assert
+    EXPECT_EQ(result, "未知状态");
+}