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 +1,430 @@
+#include <gtest/gtest.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_(std::cout.rdbuf()), old_cerr_(std::cerr.rdbuf()) {
+        std::cout.rdbuf(ss_cout_.rdbuf());
+        std::cerr.rdbuf(ss_cerr_.rdbuf());
+    }
+    
+    ~StreamCapture() {
+        std::cout.rdbuf(old_cout_);
+        std::cerr.rdbuf(old_cerr_);
+    }
+    
+    std::string getCout() const { return ss_cout_.str(); }
+    std::string getCerr() const { return ss_cerr_.str(); }
+    
+private:
+    std::stringstream ss_cout_;
+    std::stringstream ss_cerr_;
+    std::streambuf* old_cout_;
+    std::streambuf* old_cerr_;
+};
+
+// 测试夹具：为每个测试用例创建独立的 AlertManager 实例
+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
+    // 测试正常高度 50.0
+    manager.checkAltitudeAlert(50.0f, 1000);
+    
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    EXPECT_FALSE(manager.hasUnacknowledgedAlerts());
+    
+    // 测试接近上限但未超过
+    manager.checkAltitudeAlert(99.9f, 1001);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    // 测试接近下限但未低于
+    manager.checkAltitudeAlert(-49.9f, 1002);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+}
+
+// 边界值测试：高度刚好等于阈值，不应触发预警
+TEST_F(AlertManagerTest, testCheckAltitudeAlertAtThreshold) {
+    StreamCapture capture;
+    
+    // 测试高度等于上限
+    manager.checkAltitudeAlert(100.0f, 2000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    // 测试高度等于下限
+    manager.checkAltitudeAlert(-50.0f, 2001);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+}
+
+// 边界值测试：高度超过上限，应触发 ALTITUDE_UPPER 预警
+TEST_F(AlertManagerTest, testCheckAltitudeAlertExceedsUpper) {
+    StreamCapture capture;
+    
+    // 高度超过上限
+    manager.checkAltitudeAlert(150.0f, 3000);
+    
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    EXPECT_TRUE(manager.hasUnacknowledgedAlerts());
+    
+    auto activeAlerts = manager.getActiveAlerts();
+    ASSERT_EQ(1, activeAlerts.size());
+    EXPECT_EQ(AlertType::ALTITUDE_UPPER, activeAlerts[0].type);
+    EXPECT_EQ(AlertStatus::ACTIVE, activeAlerts[0].status);
+    EXPECT_EQ(3000, activeAlerts[0].trigger_time);
+    
+    // 验证输出包含预警信息
+    std::string coutOutput = capture.getCout();
+    EXPECT_NE(std::string::npos, coutOutput.find("高度上限预警"));
+    EXPECT_NE(std::string::npos, coutOutput.find("150"));
+}
+
+// 边界值测试：高度低于下限，应触发 ALTITUDE_LOWER 预警
+TEST_F(AlertManagerTest, testCheckAltitudeAlertBelowLower) {
+    StreamCapture capture;
+    
+    // 高度低于下限
+    manager.checkAltitudeAlert(-100.0f, 4000);
+    
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    EXPECT_TRUE(manager.hasUnacknowledgedAlerts());
+    
+    auto activeAlerts = manager.getActiveAlerts();
+    ASSERT_EQ(1, activeAlerts.size());
+    EXPECT_EQ(AlertType::ALTITUDE_LOWER, activeAlerts[0].type);
+    EXPECT_EQ(AlertStatus::ACTIVE, activeAlerts[0].status);
+    EXPECT_EQ(4000, activeAlerts[0].trigger_time);
+    
+    // 验证输出包含预警信息
+    std::string coutOutput = capture.getCout();
+    EXPECT_NE(std::string::npos, coutOutput.find("高度下限预警"));
+    EXPECT_NE(std::string::npos, coutOutput.find("-100"));
+}
+
+// 特殊场景测试：高度超过上限后恢复正常，预警应解除
+TEST_F(AlertManagerTest, testCheckAltitudeAlertUpperResolved) {
+    StreamCapture capture;
+    
+    // 先触发上限预警
+    manager.checkAltitudeAlert(150.0f, 5000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    // 高度恢复正常
+    manager.checkAltitudeAlert(80.0f, 5001);
+    
+    // 预警应被解决
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    EXPECT_FALSE(manager.hasUnacknowledgedAlerts());
+    
+    // 验证历史记录中存在已解决的预警
+    auto history = manager.getAlertHistory(10);
+    bool foundResolved = false;
+    for (const auto& alert : history) {
+        if (alert.type == AlertType::ALTITUDE_UPPER && 
+            alert.status == AlertStatus::RESOLVED) {
+            foundResolved = true;
+            break;
+        }
+    }
+    EXPECT_TRUE(foundResolved);
+}
+
+// 特殊场景测试：高度低于下限后恢复正常，预警应解除
+TEST_F(AlertManagerTest, testCheckAltitudeAlertLowerResolved) {
+    StreamCapture capture;
+    
+    // 先触发下限预警
+    manager.checkAltitudeAlert(-100.0f, 6000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    // 高度恢复正常
+    manager.checkAltitudeAlert(0.0f, 6001);
+    
+    // 预警应被解决
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    EXPECT_FALSE(manager.hasUnacknowledgedAlerts());
+    
+    // 验证历史记录
+    auto history = manager.getAlertHistory(10);
+    bool foundResolved = false;
+    for (const auto& alert : history) {
+        if (alert.type == AlertType::ALTITUDE_LOWER && 
+            alert.status == AlertStatus::RESOLVED) {
+            foundResolved = true;
+            break;
+        }
+    }
+    EXPECT_TRUE(foundResolved);
+}
+
+// 特殊场景测试：同时超过上下限（理论上不可能，但测试逻辑完整性）
+TEST_F(AlertManagerTest, testCheckAltitudeAlertBothThresholds) {
+    StreamCapture capture;
+    
+    // 修改阈值使上下限重叠（通过 setAltitudeThresholds 会校验，这里直接测试逻辑）
+    // 注意：此测试仅验证 checkAltitudeAlert 的逻辑，不依赖阈值设置
+    
+    // 先触发上限预警
+    manager.checkAltitudeAlert(150.0f, 7000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    // 再触发下限预警（此时高度低于下限）
+    manager.checkAltitudeAlert(-100.0f, 7001);
+    
+    // 应有 2 个活动预警
+    auto activeAlerts = manager.getActiveAlerts();
+    EXPECT_EQ(2, activeAlerts.size());
+}
+
+// 异常输入测试：高度为 NaN（如果支持）
+TEST_F(AlertManagerTest, testCheckAltitudeAlertNaN) {
+    StreamCapture capture;
+    
+    // 使用 NaN 值（如果编译器支持）
+    float nanValue = std::numeric_limits<float>::quiet_NaN();
+    
+    // NaN 与任何值的比较结果都是 false，因此不会触发预警
+    manager.checkAltitudeAlert(nanValue, 8000);
+    
+    // 不应触发任何预警
+    EXPECT_FALSE(manager.hasActiveAlerts());
+}
+
+// 异常输入测试：高度为无穷大
+TEST_F(AlertManagerTest, testCheckAltitudeAlertInfinity) {
+    StreamCapture capture;
+    
+    float infValue = std::numeric_limits<float>::infinity();
+    
+    // 正无穷应触发上限预警
+    manager.checkAltitudeAlert(infValue, 9000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    auto activeAlerts = manager.getActiveAlerts();
+    ASSERT_EQ(1, activeAlerts.size());
+    EXPECT_EQ(AlertType::ALTITUDE_UPPER, activeAlerts[0].type);
+}
+
+// 异常输入测试：高度为负无穷
+TEST_F(AlertManagerTest, testCheckAltitudeAlertNegativeInfinity) {
+    StreamCapture capture;
+    
+    float negInfValue = -std::numeric_limits<float>::infinity();
+    
+    // 负无穷应触下限预警
+    manager.checkAltitudeAlert(negInfValue, 10000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    auto activeAlerts = manager.getActiveAlerts();
+    ASSERT_EQ(1, activeAlerts.size());
+    EXPECT_EQ(AlertType::ALTITUDE_LOWER, activeAlerts[0].type);
+}
+
+// 特殊场景测试：时间戳为 0
+TEST_F(AlertManagerTest, testCheckAltitudeAlertTimestampZero) {
+    StreamCapture capture;
+    
+    // 时间戳为 0 不应影响预警逻辑
+    manager.checkAltitudeAlert(150.0f, 0);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    auto activeAlerts = manager.getActiveAlerts();
+    ASSERT_EQ(1, activeAlerts.size());
+    EXPECT_EQ(0, activeAlerts[0].trigger_time);
+}
+
+// 特殊场景测试：连续多次触发同一预警，不应重复触发
+TEST_F(AlertManagerTest, testCheckAltitudeAlertDuplicateTrigger) {
+    StreamCapture capture;
+    
+    // 第一次触发
+    manager.checkAltitudeAlert(150.0f, 11000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    // 第二次触发（高度仍然超过上限）
+    manager.checkAltitudeAlert(200.0f, 11001);
+    
+    // 应仍只有 1 个活动预警
+    auto activeAlerts = manager.getActiveAlerts();
+    ASSERT_EQ(1, activeAlerts.size());
+    
+    // 验证历史记录中只有 1 次触发
+    auto history = manager.getAlertHistory(10);
+    int triggerCount = 0;
+    for (const auto& alert : history) {
+        if (alert.type == AlertType::ALTITUDE_UPPER && 
+            alert.status == AlertStatus::ACTIVE) {
+            triggerCount++;
+        }
+    }
+    EXPECT_EQ(1, triggerCount);
+}
+
+// ==================== setAltitudeThresholds 测试 ====================
+
+// 正常输入测试：设置有效的上下限阈值
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsValid) {
+    StreamCapture capture;
+    
+    manager.setAltitudeThresholds(200.0f, -100.0f);
+    
+    // 验证输出
+    std::string coutOutput = capture.getCout();
+    EXPECT_NE(std::string::npos, coutOutput.find("预警阈值已更新"));
+    EXPECT_NE(std::string::npos, coutOutput.find("200"));
+    EXPECT_NE(std::string::npos, coutOutput.find("-100"));
+    
+    // 验证新阈值生效
+    manager.checkAltitudeAlert(150.0f, 12000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    manager.checkAltitudeAlert(250.0f, 12001);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+}
+
+// 边界值测试：设置上限等于下限（非法）
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsEqual) {
+    StreamCapture capture;
+    
+    manager.setAltitudeThresholds(100.0f, 100.0f);
+    
+    // 验证错误输出
+    std::string cerrOutput = capture.getCerr();
+    EXPECT_NE(std::string::npos, cerrOutput.find("上限阈值必须大于下限阈值"));
+    
+    // 验证阈值未改变
+    manager.checkAltitudeAlert(150.0f, 13000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+}
+
+// 异常输入测试：设置上限小于下限（非法）
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsUpperLessThanLower) {
+    StreamCapture capture;
+    
+    manager.setAltitudeThresholds(-50.0f, 100.0f);
+    
+    // 验证错误输出
+    std::string cerrOutput = capture.getCerr();
+    EXPECT_NE(std::string::npos, cerrOutput.find("上限阈值必须大于下限阈值"));
+    
+    // 验证阈值未改变
+    manager.checkAltitudeAlert(150.0f, 14000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+}
+
+// 边界值测试：设置非常大的阈值范围
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsLargeRange) {
+    StreamCapture capture;
+    
+    float largeUpper = 1000000.0f;
+    float largeLower = -1000000.0f;
+    
+    manager.setAltitudeThresholds(largeUpper, largeLower);
+    
+    // 验证阈值设置成功
+    manager.checkAltitudeAlert(500000.0f, 15000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    manager.checkAltitudeAlert(2000000.0f, 15001);
+    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;
+    
+    float smallUpper = 0.001f;
+    float smallLower = -0.001f;
+    
+    manager.setAltitudeThresholds(smallUpper, smallLower);
+    
+    // 验证阈值设置成功
+    manager.checkAltitudeAlert(0.0005f, 16000);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    manager.checkAltitudeAlert(0.002f, 16001);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+}
+
+// 特殊场景测试：设置阈值后，原有的活动预警应被重置
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsResetsAlerts) {
+    StreamCapture capture;
+    
+    // 先触发一个预警
+    manager.checkAltitudeAlert(150.0f, 17000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    // 修改阈值
+    manager.setAltitudeThresholds(200.0f, -100.0f);
+    
+    // 原有的预警应被重置（解决）
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    // 验证历史记录中存在已解决的预警
+    auto history = manager.getAlertHistory(10);
+    bool foundResolved = false;
+    for (const auto& alert : history) {
+        if (alert.type == AlertType::ALTITUDE_UPPER && 
+            alert.status == AlertStatus::RESOLVED) {
+            foundResolved = true;
+            break;
+        }
+    }
+    EXPECT_TRUE(foundResolved);
+}
+
+// 特殊场景测试：连续设置阈值，验证状态一致性
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsMultipleTimes) {
+    StreamCapture capture;
+    
+    // 第一次设置
+    manager.setAltitudeThresholds(200.0f, -100.0f);
+    
+    // 触发预警
+    manager.checkAltitudeAlert(250.0f, 18000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    // 第二次设置
+    manager.setAltitudeThresholds(300.0f, -200.0f);
+    
+    // 原有预警被重置
+    EXPECT_FALSE(manager.hasActiveAlerts());
+    
+    // 新阈值下，原来的高度不再触发预警
+    manager.checkAltitudeAlert(250.0f, 18001);
+    EXPECT_FALSE(manager.hasActiveAlerts());
+}
+
+// 特殊场景测试：设置阈值后立即检查高度
+TEST_F(AlertManagerTest, testSetAltitudeThresholdsImmediateCheck) {
+    StreamCapture capture;
+    
+    // 设置新阈值
+    manager.setAltitudeThresholds(50.0f, -10.0f);
+    
+    // 立即检查高度，应触发预警
+    manager.checkAltitudeAlert(60.0f, 19000);
+    EXPECT_TRUE(manager.hasActiveAlerts());
+    
+    auto activeAlerts = manager.getActiveAlerts();
+    ASSERT_EQ(1, activeAlerts.size());
+    EXPECT_EQ(AlertType::ALTITUDE_UPPER, activeAlerts[0].type);
+}