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(test_CppGenerate)
+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(test_CppGenerate test_alert_manager.cpp ../src/alert_manager.cpp)
+
+target_link_libraries(test_CppGenerate gtest gmock gtest_main)
+include(GoogleTest)
+gtest_discover_tests(test_CppGenerate)

tests/CMakeLists2.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 +1,459 @@
+#include <gtest/gtest.h>
+#include <gmock/gmock.h>
+#include "alert_manager.hpp"
+#include <sstream>
+#include <iostream>
+
+// 辅助类：用于捕获标准输出和标准错误输出
+class StreamCapture {
+public:
+    StreamCapture() {
+        old_cout_buf_ = std::cout.rdbuf(cout_buffer_.rdbuf());
+        old_cerr_buf_ = std::cerr.rdbuf(cerr_buffer_.rdbuf());
+    }
+
+    ~StreamCapture() {
+        std::cout.rdbuf(old_cout_buf_);
+        std::cerr.rdbuf(old_cerr_buf_);
+    }
+
+    std::string getCout() const { return cout_buffer_.str(); }
+    std::string getCerr() const { return cerr_buffer_.str(); }
+
+private:
+    std::stringstream cout_buffer_;
+    std::stringstream cerr_buffer_;
+    std::streambuf* old_cout_buf_;
+    std::streambuf* old_cerr_buf_;
+};
+
+// 测试夹具类
+class AlertManagerTest : public ::testing::Test {
+protected:
+    void SetUp() override {
+        manager.initialize();
+    }
+
+    void TearDown() override {
+        manager.resetAllAlerts();
+    }
+
+    AlertManager manager;
+};
+
+// ==================== checkAltitudeAlert 测试 ====================
+
+// 正常输入测试：高度在阈值范围内，不应触发任何预警
+TEST_F(AlertManagerTest, testCheckAltitudeAlertNormalRange) {
+    StreamCapture capture;
+    
+    // 默认阈值：上限100.0，下限-50.0
+    manager.checkAltitudeAlert(50.0f, 1000);
+    
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    EXPECT_FALSE(manager.hasUnacknowledgedAlerts());
+    
+    // 验证没有预警相关的输出
+    std::string cout_output = capture.getCout();
+    EXPECT_EQ(cout_output.find("[预警]"), std::string::npos);
+}
+
+// 正常输入测试：高度超过上限，应触发上限预警
+TEST_F(AlertManagerTest, testCheckAltitudeAlertUpperThresholdExceeded) {
+    StreamCapture capture;
+    
+    manager.checkAltitudeAlert(150.0f, 2000);
+    
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    EXPECT_TRUE(manager.hasUnacknowledgedAlerts());
+    
+    auto active_alerts = manager.getActiveAlerts();
+    ASSERT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::ALTITUDE_UPPER);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::ACTIVE);
+    EXPECT_EQ(active_alerts[0].trigger_time, 2000);
+    
+    // 验证输出包含预警信息
+    std::string cout_output = capture.getCout();
+    EXPECT_NE(cout_output.find("高度上限预警"), std::string::npos);
+    EXPECT_NE(cout_output.find("150"), std::string::npos);
+}
+
+// 正常输入测试：高度低于下限，应触发下限预警
+TEST_F(AlertManagerTest, testCheckAltitudeAlertLowerThresholdExceeded) {
+    StreamCapture capture;
+    
+    manager.checkAltitudeAlert(-100.0f, 3000);
+    
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    EXPECT_TRUE(manager.hasUnacknowledgedAlerts());
+    
+    auto active_alerts = manager.getActiveAlerts();
+    ASSERT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::ALTITUDE_LOWER);
+    EXPECT_EQ(active_alerts[0].status, AlertStatus::ACTIVE);
+    EXPECT_EQ(active_alerts[0].trigger_time, 3000);
+    
+    // 验证输出包含预警信息
+    std::string cout_output = capture.getCout();
+    EXPECT_NE(cout_output.find("高度下限预警"), std::string::npos);
+    EXPECT_NE(cout_output.find("-100"), std::string::npos);
+}
+
+// 边界值测试：高度恰好等于上限阈值，不应触发预警
+TEST_F(AlertManagerTest, testCheckAltitudeAlertAtUpperBoundary) {
+    StreamCapture capture;
+    
+    manager.checkAltitudeAlert(100.0f, 4000);
+    
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    EXPECT_FALSE(manager.hasUnacknowledgedAlerts());
+    
+    std::string cout_output = capture.getCout();
+    EXPECT_EQ(cout_output.find("[预警]"), std::string::npos);
+}
+
+// 边界值测试：高度恰好等于下限阈值，不应触发预警
+TEST_F(AlertManagerTest, testCheckAltitudeAlertAtLowerBoundary) {
+    StreamCapture capture;
+    
+    manager.checkAltitudeAlert(-50.0f, 5000);
+    
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    EXPECT_FALSE(manager.hasUnacknowledgedAlerts());
+    
+    std::string cout_output = capture.getCout();
+    EXPECT_EQ(cout_output.find("[预警]"), std::string::npos);
+}
+
+// 边界值测试：高度略高于上限阈值（浮点数精度边界）
+TEST_F(AlertManagerTest, testCheckAltitudeAlertJustAboveUpperBoundary) {
+    StreamCapture capture;
+    
+    manager.checkAltitudeAlert(100.0001f, 6000);
+    
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    auto active_alerts = manager.getActiveAlerts();
+    ASSERT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::ALTITUDE_UPPER);
+}
+
+// 边界值测试：高度略低于下限阈值（浮点数精度边界）
+TEST_F(AlertManagerTest, testCheckAltitudeAlertJustBelowLowerBoundary) {
+    StreamCapture capture;
+    
+    manager.checkAltitudeAlert(-50.0001f, 7000);
+    
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    auto active_alerts = manager.getActiveAlerts();
+    ASSERT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::ALTITUDE_LOWER);
+}
+
+// 特殊场景测试：高度从超出上限恢复到正常范围，应解除预警
+TEST_F(AlertManagerTest, testCheckAltitudeAlertRecoverFromUpperAlert) {
+    StreamCapture capture;
+    
+    // 先触发上限预警
+    manager.checkAltitudeAlert(150.0f, 8000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    // 高度恢复正常
+    manager.checkAltitudeAlert(50.0f, 9000);
+    
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    EXPECT_FALSE(manager.hasUnacknowledgedAlerts());
+    
+    // 验证预警已解决
+    auto history = manager.getAlertHistory(10);
+    bool found_resolved = false;
+    for (const auto& alert : history) {
+        if (alert.type == AlertType::ALTITUDE_UPPER && 
+            alert.status == AlertStatus::RESOLVED) {
+            found_resolved = true;
+            break;
+        }
+    }
+    EXPECT_TRUE(found_resolved);
+}
+
+// 特殊场景测试：高度从低于下限恢复到正常范围，应解除预警
+TEST_F(AlertManagerTest, testCheckAltitudeAlertRecoverFromLowerAlert) {
+    StreamCapture capture;
+    
+    // 先触发下限预警
+    manager.checkAltitudeAlert(-100.0f, 10000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    // 高度恢复正常
+    manager.checkAltitudeAlert(0.0f, 11000);
+    
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    EXPECT_FALSE(manager.hasUnacknowledgedAlerts());
+    
+    // 验证预警已解决
+    auto history = manager.getAlertHistory(10);
+    bool found_resolved = false;
+    for (const auto& alert : history) {
+        if (alert.type == AlertType::ALTITUDE_LOWER && 
+            alert.status == AlertStatus::RESOLVED) {
+            found_resolved = true;
+            break;
+        }
+    }
+    EXPECT_TRUE(found_resolved);
+}
+
+// 特殊场景测试：同时触发上限和下限预警（理论上不可能，但测试边界情况）
+TEST_F(AlertManagerTest, testCheckAltitudeAlertBothThresholdsExceeded) {
+    StreamCapture capture;
+    
+    // 修改阈值为较小范围，使高度同时超出上下限（不可能，但测试代码健壮性）
+    manager.setAltitudeThresholds(10.0f, 20.0f);
+    
+    // 高度30同时超出上下限（下限20，上限10），实际只应触发上限预警
+    manager.checkAltitudeAlert(30.0f, 12000);
+    
+    auto active_alerts = manager.getActiveAlerts();
+    EXPECT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::ALTITUDE_UPPER);
+}
+
+// 异常输入测试：高度为极大值
+TEST_F(AlertManagerTest, testCheckAltitudeAlertExtremeHighValue) {
+    StreamCapture capture;
+    
+    manager.checkAltitudeAlert(1e10f, 13000);
+    
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    auto active_alerts = manager.getActiveAlerts();
+    ASSERT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::ALTITUDE_UPPER);
+}
+
+// 异常输入测试：高度为极小值
+TEST_F(AlertManagerTest, testCheckAltitudeAlertExtremeLowValue) {
+    StreamCapture capture;
+    
+    manager.checkAltitudeAlert(-1e10f, 14000);
+    
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    auto active_alerts = manager.getActiveAlerts();
+    ASSERT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].type, AlertType::ALTITUDE_LOWER);
+}
+
+// 异常输入测试：时间戳为0
+TEST_F(AlertManagerTest, testCheckAltitudeAlertZeroTimestamp) {
+    StreamCapture capture;
+    
+    manager.checkAltitudeAlert(150.0f, 0);
+    
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    auto active_alerts = manager.getActiveAlerts();
+    ASSERT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].trigger_time, 0);
+}
+
+// 异常输入测试：时间戳为最大值
+TEST_F(AlertManagerTest, testCheckAltitudeAlertMaxTimestamp) {
+    StreamCapture capture;
+    
+    manager.checkAltitudeAlert(150.0f, UINT32_MAX);
+    
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    auto active_alerts = manager.getActiveAlerts();
+    ASSERT_EQ(active_alerts.size(), 1);
+    EXPECT_EQ(active_alerts[0].trigger_time, UINT32_MAX);
+}
+
+// ==================== setAltitudeThresholds 测试 ====================
+
+// 正常输入测试：设置有效的上下限阈值
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsValidValues) {
+    StreamCapture capture;
+    
+    manager.setAltitudeThresholds(200.0f, 0.0f);
+    
+    // 验证新阈值生效
+    manager.checkAltitudeAlert(150.0f, 15000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    manager.checkAltitudeAlert(250.0f, 16000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    // 验证输出信息
+    std::string cout_output = capture.getCout();
+    EXPECT_NE(cout_output.find("预警阈值已更新"), std::string::npos);
+    EXPECT_NE(cout_output.find("200"), std::string::npos);
+    EXPECT_NE(cout_output.find("0"), std::string::npos);
+}
+
+// 正常输入测试：设置阈值后，之前的预警应被重置
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsResetsAlerts) {
+    StreamCapture capture;
+    
+    // 先触发预警
+    manager.checkAltitudeAlert(150.0f, 17000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    // 修改阈值
+    manager.setAltitudeThresholds(200.0f, 0.0f);
+    
+    // 预警应被重置
+    EXPECT_FALSE(manager.hasActiveAlerts());
+}
+
+// 异常输入测试：上限小于下限，应输出错误信息且不修改阈值
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsUpperLessThanLower) {
+    StreamCapture capture;
+    
+    float original_upper = 100.0f;
+    float original_lower = -50.0f;
+    
+    manager.setAltitudeThresholds(10.0f, 20.0f);
+    
+    // 验证阈值未改变
+    manager.checkAltitudeAlert(50.0f, 18000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    // 验证错误输出
+    std::string cerr_output = capture.getCerr();
+    EXPECT_NE(cerr_output.find("上限阈值必须大于下限阈值"), std::string::npos);
+}
+
+// 边界值测试：上限等于下限，应视为非法输入
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsUpperEqualToLower) {
+    StreamCapture capture;
+    
+    manager.setAltitudeThresholds(50.0f, 50.0f);
+    
+    // 验证阈值未改变
+    manager.checkAltitudeAlert(50.0f, 19000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    // 验证错误输出
+    std::string cerr_output = capture.getCerr();
+    EXPECT_NE(cerr_output.find("上限阈值必须大于下限阈值"), std::string::npos);
+}
+
+// 边界值测试：设置非常大的阈值范围
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsLargeRange) {
+    StreamCapture capture;
+    
+    manager.setAltitudeThresholds(10000.0f, -10000.0f);
+    
+    // 验证新阈值生效
+    manager.checkAltitudeAlert(5000.0f, 20000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    manager.checkAltitudeAlert(15000.0f, 21000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+}
+
+// 边界值测试：设置非常小的阈值范围
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsSmallRange) {
+    StreamCapture capture;
+    
+    manager.setAltitudeThresholds(1.0f, 0.0f);
+    
+    // 验证新阈值生效
+    manager.checkAltitudeAlert(0.5f, 22000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    manager.checkAltitudeAlert(1.5f, 23000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    manager.checkAltitudeAlert(-0.5f, 24000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+}
+
+// 异常输入测试：设置负数的上限和下限
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsNegativeValues) {
+    StreamCapture capture;
+    
+    manager.setAltitudeThresholds(-10.0f, -100.0f);
+    
+    // 验证新阈值生效
+    manager.checkAltitudeAlert(-50.0f, 25000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    manager.checkAltitudeAlert(-5.0f, 26000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+}
+
+// 异常输入测试：设置浮点数精度极限值
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsFloatPrecision) {
+    StreamCapture capture;
+    
+    manager.setAltitudeThresholds(100.000001f, 0.000001f);
+    
+    // 验证新阈值生效
+    manager.checkAltitudeAlert(50.0f, 27000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    manager.checkAltitudeAlert(100.00001f, 28000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+}
+
+// 特殊场景测试：多次设置阈值，验证最后一次生效
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsMultipleCalls) {
+    StreamCapture capture;
+    
+    manager.setAltitudeThresholds(200.0f, 100.0f);
+    manager.setAltitudeThresholds(300.0f, 200.0f);
+    manager.setAltitudeThresholds(400.0f, 300.0f);
+    
+    // 验证最后一次设置生效
+    manager.checkAltitudeAlert(350.0f, 29000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    manager.checkAltitudeAlert(450.0f, 30000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+}
+
+// 特殊场景测试：设置阈值后立即检查高度，验证阈值更新及时
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsImmediateEffect) {
+    StreamCapture capture;
+    
+    // 当前高度50，默认阈值下正常
+    manager.checkAltitudeAlert(50.0f, 31000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    // 修改阈值为[30, 60]
+    manager.setAltitudeThresholds(60.0f, 30.0f);
+    
+    // 高度50仍在范围内
+    manager.checkAltitudeAlert(50.0f, 32000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    // 修改阈值为[40, 45]
+    manager.setAltitudeThresholds(45.0f, 40.0f);
+    
+    // 高度50超出上限
+    manager.checkAltitudeAlert(50.0f, 33000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+}
+
+// 特殊场景测试：设置阈值后，之前已解决的预警不应再次触发
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsDoesNotReTriggerResolvedAlerts) {
+    StreamCapture capture;
+    
+    // 触发并解决预警
+    manager.checkAltitudeAlert(150.0f, 34000);
+    manager.checkAltitudeAlert(50.0f, 35000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    // 修改阈值
+    manager.setAltitudeThresholds(200.0f, 0.0f);
+    
+    // 不应有活动预警
+    EXPECT_FALSE(manager.hasActiveAlerts());
+}
+
+int main(int argc, char **argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}