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
@@ -197,26 +207,6 @@ public:
         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
      * @param type 预警类型
@@ -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 +1,30 @@
+# GoogleTest配置
+include(FetchContent)
+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)
+
+# 包含目录
+include_directories(${CMAKE_SOURCE_DIR}/src)
+include_directories(${CMAKE_SOURCE_DIR}/include)
+
+# 启用测试
+enable_testing()
+
+# 添加alert_manager的单元测试
+add_executable(test_alert_manager test_alert_manager.cpp ../src/alert_manager.cpp)
+
+# 设置UTF-8编码支持
+if(MSVC)
+    target_compile_options(test_alert_manager PRIVATE /utf-8)
+endif()
+
+target_link_libraries(test_alert_manager gtest gmock gtest_main)
+
+# 注册测试
+include(GoogleTest)
+gtest_discover_tests(test_alert_manager)

tests/test_alert_manager.cpp

@@ -0,0 +1,372 @@
+#include "gtest/gtest.h"
+#include "alert_manager.hpp"
+#include <vector>
+#include <string>
+
+// Mock the global functions to avoid side effects
+namespace {
+    std::string g_output_buffer;
+    void mock_cout(const std::string& msg) {
+        g_output_buffer += msg + "\n";
+    }
+    void mock_cerr(const std::string& msg) {
+        g_output_buffer += msg + "\n";
+    }
+}
+
+// Replace std::cout and std::cerr with mocks
+#define cout g_output_buffer
+#define cerr g_output_buffer
+
+// Mock time function for deterministic testing
+static uint32_t mock_time = 1000;
+uint32_t get_mock_time() { return mock_time; }
+
+// Override std::time to use mock_time
+extern "C" {
+    time_t time(time_t* tloc) {
+        if (tloc) *tloc = mock_time;
+        return mock_time;
+    }
+}
+
+// Test fixture for AlertManager
+class AlertManagerTest : public ::testing::Test {
+protected:
+    AlertManager alert_manager;
+
+    void SetUp() override {
+        g_output_buffer.clear();
+        mock_time = 1000;
+    }
+
+    void TearDown() override {
+        // Reset state
+        alert_manager.resetAllAlerts();
+    }
+};
+
+// Test case: AlertManager constructor
+TEST_F(AlertManagerTest, testAlertManagerConstructorNormalInput) {
+    EXPECT_FLOAT_EQ(alert_manager.getAltitudeThresholds().first, 100.0f);
+    EXPECT_FLOAT_EQ(alert_manager.getAltitudeThresholds().second, -50.0f);
+    EXPECT_TRUE(alert_manager.getActiveAlerts().empty());
+    EXPECT_TRUE(alert_manager.getAlertHistory(10).empty());
+}
+
+// Test case: AlertManager destructor
+TEST_F(AlertManagerTest, testAlertManagerDestructorNormalInput) {
+    // No specific behavior expected, just ensure no crash
+    // Destructor is tested implicitly by scope
+    EXPECT_NO_FATAL_FAILURE({});
+}
+
+// Test case: initialize
+TEST_F(AlertManagerTest, testInitializeNormalInput) {
+    alert_manager.initialize();
+    EXPECT_NE(g_output_buffer.find("预警管理器初始化完成"), std::string::npos);
+    EXPECT_NE(g_output_buffer.find("默认预警阈值：上限=100米，下限=-50米"), std::string::npos);
+}
+
+// Test case: checkAltitudeAlert - normal altitude
+TEST_F(AlertManagerTest, testCheckAltitudeAlertNormalInput) {
+    alert_manager.checkAltitudeAlert(50.0f, 1000);
+    EXPECT_TRUE(alert_manager.getActiveAlerts().empty());
+    EXPECT_FALSE(g_output_buffer.find("高度超过上限阈值") != std::string::npos);
+    EXPECT_FALSE(g_output_buffer.find("高度低于下限阈值") != std::string::npos);
+}
+
+// Test case: checkAltitudeAlert - upper threshold exceeded
+TEST_F(AlertManagerTest, testCheckAltitudeAlertUpperThresholdExceeded) {
+    alert_manager.checkAltitudeAlert(101.0f, 1000);
+    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);
+    EXPECT_NE(g_output_buffer.find("高度超过上限阈值"), std::string::npos);
+}
+
+// Test case: checkAltitudeAlert - lower threshold exceeded
+TEST_F(AlertManagerTest, testCheckAltitudeAlertLowerThresholdExceeded) {
+    alert_manager.checkAltitudeAlert(-51.0f, 1000);
+    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);
+    EXPECT_NE(g_output_buffer.find("高度低于下限阈值"), std::string::npos);
+}
+
+// Test case: checkAltitudeAlert - recovery from upper threshold
+TEST_F(AlertManagerTest, testCheckAltitudeAlertRecoveryFromUpperThreshold) {
+    alert_manager.checkAltitudeAlert(101.0f, 1000);
+    alert_manager.checkAltitudeAlert(99.0f, 1001);
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_TRUE(active_alerts.empty());
+    EXPECT_NE(g_output_buffer.find("预警已解决: 高度上限预警"), std::string::npos);
+}
+
+// Test case: checkAltitudeAlert - recovery from lower threshold
+TEST_F(AlertManagerTest, testCheckAltitudeAlertRecoveryFromLowerThreshold) {
+    alert_manager.checkAltitudeAlert(-51.0f, 1000);
+    alert_manager.checkAltitudeAlert(-49.0f, 1001);
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_TRUE(active_alerts.empty());
+    EXPECT_NE(g_output_buffer.find("预警已解决: 高度下限预警"), std::string::npos);
+}
+
+// Test case: setAltitudeThresholds - valid thresholds
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsValidInput) {
+    alert_manager.setAltitudeThresholds(200.0f, -100.0f);
+    EXPECT_FLOAT_EQ(alert_manager.getAltitudeThresholds().first, 200.0f);
+    EXPECT_FLOAT_EQ(alert_manager.getAltitudeThresholds().second, -100.0f);
+    EXPECT_NE(g_output_buffer.find("预警阈值已更新"), std::string::npos);
+    EXPECT_TRUE(alert_manager.getActiveAlerts().empty());
+}
+
+// Test case: setAltitudeThresholds - invalid thresholds
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsInvalidInput) {
+    alert_manager.setAltitudeThresholds(50.0f, 100.0f);
+    EXPECT_NE(g_output_buffer.find("错误：上限阈值必须大于下限阈值。"), std::string::npos);
+    EXPECT_FLOAT_EQ(alert_manager.getAltitudeThresholds().first, 100.0f);
+    EXPECT_FLOAT_EQ(alert_manager.getAltitudeThresholds().second, -50.0f);
+}
+
+// Test case: triggerSensorFailure
+TEST_F(AlertManagerTest, testTriggerSensorFailureNormalInput) {
+    alert_manager.triggerSensorFailure(1000);
+    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);
+    EXPECT_NE(g_output_buffer.find("传感器故障"), std::string::npos);
+}
+
+// Test case: triggerLowBattery
+TEST_F(AlertManagerTest, testTriggerLowBatteryNormalInput) {
+    alert_manager.triggerLowBattery(1000, 15.5f);
+    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(g_output_buffer.find("低电量警告：当前电量15.5%"), std::string::npos);
+}
+
+// Test case: triggerCommunicationError
+TEST_F(AlertManagerTest, testTriggerCommunicationErrorNormalInput) {
+    alert_manager.triggerCommunicationError(1000);
+    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);
+    EXPECT_NE(g_output_buffer.find("通信错误"), std::string::npos);
+}
+
+// Test case: acknowledgeAllAlerts
+TEST_F(AlertManagerTest, testAcknowledgeAllAlertsNormalInput) {
+    alert_manager.triggerSensorFailure(1000);
+    alert_manager.triggerLowBattery(1001, 10.0f);
+    alert_manager.acknowledgeAllAlerts(1002);
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_TRUE(active_alerts.empty());
+    EXPECT_NE(g_output_buffer.find("预警已确认: 传感器故障"), std::string::npos);
+    EXPECT_NE(g_output_buffer.find("预警已确认: 低电量预警"), std::string::npos);
+}
+
+// Test case: acknowledgeAlert - valid type
+TEST_F(AlertManagerTest, testAcknowledgeAlertValidType) {
+    alert_manager.triggerSensorFailure(1000);
+    alert_manager.acknowledgeAlert(AlertType::SENSOR_FAILURE, 1001);
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_TRUE(active_alerts.empty());
+    EXPECT_NE(g_output_buffer.find("预警已确认: 传感器故障"), std::string::npos);
+}
+
+// Test case: acknowledgeAlert - invalid type
+TEST_F(AlertManagerTest, testAcknowledgeAlertInvalidType) {
+    alert_manager.acknowledgeAlert(AlertType::NONE, 1000);
+    EXPECT_TRUE(alert_manager.getActiveAlerts().empty());
+    EXPECT_TRUE(g_output_buffer.empty());
+}
+
+// Test case: resetAlert - active alert
+TEST_F(AlertManagerTest, testResetAlertActiveAlert) {
+    alert_manager.triggerSensorFailure(1000);
+    alert_manager.resetAlert(AlertType::SENSOR_FAILURE);
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_TRUE(active_alerts.empty());
+    EXPECT_NE(g_output_buffer.find("预警已解决: 传感器故障"), std::string::npos);
+}
+
+// Test case: resetAlert - inactive alert
+TEST_F(AlertManagerTest, testResetAlertInactiveAlert) {
+    alert_manager.resetAlert(AlertType::SENSOR_FAILURE);
+    EXPECT_TRUE(alert_manager.getActiveAlerts().empty());
+    EXPECT_TRUE(g_output_buffer.empty());
+}
+
+// Test case: resetAllAlerts
+TEST_F(AlertManagerTest, testResetAllAlertsNormalInput) {
+    alert_manager.triggerSensorFailure(1000);
+    alert_manager.triggerLowBattery(1001, 10.0f);
+    alert_manager.resetAllAlerts();
+    EXPECT_TRUE(alert_manager.getActiveAlerts().empty());
+    EXPECT_NE(g_output_buffer.find("所有预警已重置。"), std::string::npos);
+}
+
+// Test case: hasActiveAlerts - no alerts
+TEST_F(AlertManagerTest, testHasActiveAlertsNoAlerts) {
+    EXPECT_FALSE(alert_manager.hasActiveAlerts());
+}
+
+// Test case: hasActiveAlerts - with active alerts
+TEST_F(AlertManagerTest, testHasActiveAlertsWithActiveAlerts) {
+    alert_manager.triggerSensorFailure(1000);
+    EXPECT_TRUE(alert_manager.hasActiveAlerts());
+}
+
+// Test case: hasUnacknowledgedAlerts - no unacknowledged alerts
+TEST_F(AlertManagerTest, testHasUnacknowledgedAlertsNoUnacknowledgedAlerts) {
+    alert_manager.triggerSensorFailure(1000);
+    alert_manager.acknowledgeAllAlerts(1001);
+    EXPECT_FALSE(alert_manager.hasUnacknowledgedAlerts());
+}
+
+// Test case: hasUnacknowledgedAlerts - with unacknowledged alerts
+TEST_F(AlertManagerTest, testHasUnacknowledgedAlertsWithUnacknowledgedAlerts) {
+    alert_manager.triggerSensorFailure(1000);
+    EXPECT_TRUE(alert_manager.hasUnacknowledgedAlerts());
+}
+
+// Test case: getActiveAlerts - empty
+TEST_F(AlertManagerTest, testGetActiveAlertsEmpty) {
+    auto alerts = alert_manager.getActiveAlerts();
+    EXPECT_TRUE(alerts.empty());
+}
+
+// Test case: getActiveAlerts - non-empty
+TEST_F(AlertManagerTest, testGetActiveAlertsNonEmpty) {
+    alert_manager.triggerSensorFailure(1000);
+    auto alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(alerts.size(), 1);
+    EXPECT_EQ(alerts[0].type, AlertType::SENSOR_FAILURE);
+}
+
+// Test case: getAlertHistory - max_count larger than history size
+TEST_F(AlertManagerTest, testGetAlertHistoryMaxCountLargerThanHistorySize) {
+    alert_manager.triggerSensorFailure(1000);
+    alert_manager.triggerLowBattery(1001, 10.0f);
+    auto history = alert_manager.getAlertHistory(10);
+    EXPECT_EQ(history.size(), 2);
+}
+
+// Test case: getAlertHistory - max_count smaller than history size
+TEST_F(AlertManagerTest, testGetAlertHistoryMaxCountSmallerThanHistorySize) {
+    alert_manager.triggerSensorFailure(1000);
+    alert_manager.triggerLowBattery(1001, 10.0f);
+    alert_manager.triggerCommunicationError(1002);
+    auto history = alert_manager.getAlertHistory(2);
+    EXPECT_EQ(history.size(), 2);
+    EXPECT_EQ(history[0].type, AlertType::COMMUNICATION_ERROR);
+    EXPECT_EQ(history[1].type, AlertType::LOW_BATTERY);
+}
+
+// Test case: getStatusDescription - no active alerts
+TEST_F(AlertManagerTest, testGetStatusDescriptionNoActiveAlerts) {
+    std::string desc = alert_manager.getStatusDescription();
+    EXPECT_EQ(desc, "系统状态：正常");
+}
+
+// Test case: getStatusDescription - with active alerts
+TEST_F(AlertManagerTest, testGetStatusDescriptionWithActiveAlerts) {
+    alert_manager.triggerSensorFailure(1000);
+    alert_manager.triggerLowBattery(1001, 10.0f);
+    std::string desc = alert_manager.getStatusDescription();
+    EXPECT_NE(desc.find("系统状态：有2个活动预警"), std::string::npos);
+    EXPECT_NE(desc.find("传感器故障") != std::string::npos);
+    EXPECT_NE(desc.find("低电量预警") != std::string::npos);
+}
+
+// Test case: clearHistory
+TEST_F(AlertManagerTest, testClearHistoryNormalInput) {
+    alert_manager.triggerSensorFailure(1000);
+    alert_manager.clearHistory();
+    EXPECT_TRUE(alert_manager.getAlertHistory(10).empty());
+    EXPECT_NE(g_output_buffer.find("预警历史记录已清空。"), std::string::npos);
+}
+
+// Test case: addToHistory - within limit
+TEST_F(AlertManagerTest, testAddToHistoryWithinLimit) {
+    AlertInfo alert;
+    alert.type = AlertType::SENSOR_FAILURE;
+    alert.status = AlertStatus::ACTIVE;
+    alert.trigger_time = 1000;
+    alert.description = "Test alert";
+    alert_manager.addToHistory(alert);
+    auto history = alert_manager.getAlertHistory(10);
+    EXPECT_EQ(history.size(), 1);
+    EXPECT_EQ(history[0].type, AlertType::SENSOR_FAILURE);
+}
+
+// Test case: addToHistory - exceeding limit
+TEST_F(AlertManagerTest, testAddToHistoryExceedingLimit) {
+    const int MAX_HISTORY = 5;
+    for (int i = 0; i < MAX_HISTORY + 1; ++i) {
+        AlertInfo alert;
+        alert.type = AlertType::SENSOR_FAILURE;
+        alert.status = AlertStatus::ACTIVE;
+        alert.trigger_time = 1000 + i;
+        alert.description = "Test alert";
+        alert_manager.addToHistory(alert);
+    }
+    auto history = alert_manager.getAlertHistory(10);
+    EXPECT_EQ(history.size(), MAX_HISTORY);
+    EXPECT_EQ(history[0].trigger_time, 1001);
+}
+
+// Test case: triggerAlert - basic functionality
+TEST_F(AlertManagerTest, testTriggerAlertBasicFunctionality) {
+    alert_manager.triggerAlert(AlertType::SENSOR_FAILURE, 1000, "Test alert");
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].description, "Test alert");
+    EXPECT_NE(g_output_buffer.find("[预警] 传感器故障: Test alert"), std::string::npos);
+}
+
+// Test case: updateAlertStatus - acknowledged
+TEST_F(AlertManagerTest, testUpdateAlertStatusAcknowledged) {
+    alert_manager.triggerSensorFailure(1000);
+    alert_manager.updateAlertStatus(AlertType::SENSOR_FAILURE, AlertStatus::ACKNOWLEDGED, 1001);
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_TRUE(active_alerts.empty());
+    EXPECT_NE(g_output_buffer.find("预警已确认: 传感器故障"), std::string::npos);
+}
+
+// Test case: updateAlertStatus - resolved
+TEST_F(AlertManagerTest, testUpdateAlertStatusResolved) {
+    alert_manager.triggerSensorFailure(1000);
+    alert_manager.updateAlertStatus(AlertType::SENSOR_FAILURE, AlertStatus::RESOLVED, 1001);
+    auto active_alerts = alert_manager.getActiveAlerts();
+    EXPECT_TRUE(active_alerts.empty());
+    EXPECT_NE(g_output_buffer.find("预警已解决: 传感器故障"), std::string::npos);
+}
+
+// Test case: getAlertTypeName - known types
+TEST_F(AlertManagerTest, testGetAlertTypeNameKnownTypes) {
+    EXPECT_EQ(alert_manager.getAlertTypeName(AlertType::ALTITUDE_UPPER), "高度上限预警");
+    EXPECT_EQ(alert_manager.getAlertTypeName(AlertType::SENSOR_FAILURE), "传感器故障");
+    EXPECT_EQ(alert_manager.getAlertTypeName(AlertType::NONE), "无");
+}
+
+// Test case: getAlertStatusName - known statuses
+TEST_F(AlertManagerTest, testGetAlertStatusNameKnownStatuses) {
+    EXPECT_EQ(alert_manager.getAlertStatusName(AlertStatus::ACTIVE), "预警中");
+    EXPECT_EQ(alert_manager.getAlertStatusName(AlertStatus::ACKNOWLEDGED), "已确认");
+    EXPECT_EQ(alert_manager.getAlertStatusName(AlertStatus::RESOLVED), "已解决");
+}
+
+// Test case: getAltitudeThresholds - getter method
+TEST_F(AlertManagerTest, testGetAltitudeThresholdsGetterMethod) {
+    auto thresholds = alert_manager.getAltitudeThresholds();
+    EXPECT_FLOAT_EQ(thresholds.first, 100.0f);
+    EXPECT_FLOAT_EQ(thresholds.second, -50.0f);
+}