✨ 新增集成式內存監控系統，提供系統與進程內存使用監控、智能清理機制、內存洩漏檢測及性能優化建議。更新資源管理器與 Web UI，支持內存監控集成與警告回調，並新增測試模組以確保功能正確性。

src/mcp_feedback_enhanced/utils/memory_monitor.py

@@ -0,0 +1,526 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+集成式內存監控系統
+==================
+
+提供與資源管理器深度集成的內存監控功能，包括：
+- 系統和進程內存使用監控
+- 智能清理觸發機制
+- 內存洩漏檢測和趨勢分析
+- 性能優化建議
+"""
+
+import os
+import gc
+import time
+import threading
+import psutil
+from typing import Dict, List, Optional, Callable, Any
+from dataclasses import dataclass, field
+from datetime import datetime, timedelta
+from collections import deque
+from ..debug import debug_log
+from .error_handler import ErrorHandler, ErrorType
+
+
+@dataclass
+class MemorySnapshot:
+    """內存快照數據類"""
+    timestamp: datetime
+    system_total: int  # 系統總內存 (bytes)
+    system_available: int  # 系統可用內存 (bytes)
+    system_used: int  # 系統已用內存 (bytes)
+    system_percent: float  # 系統內存使用率 (%)
+    process_rss: int  # 進程常駐內存 (bytes)
+    process_vms: int  # 進程虛擬內存 (bytes)
+    process_percent: float  # 進程內存使用率 (%)
+    gc_objects: int  # Python 垃圾回收對象數量
+
+
+@dataclass
+class MemoryAlert:
+    """內存警告數據類"""
+    level: str  # warning, critical, emergency
+    message: str
+    timestamp: datetime
+    memory_percent: float
+    recommended_action: str
+
+
+@dataclass
+class MemoryStats:
+    """內存統計數據類"""
+    monitoring_duration: float  # 監控持續時間 (秒)
+    snapshots_count: int  # 快照數量
+    average_system_usage: float  # 平均系統內存使用率
+    peak_system_usage: float  # 峰值系統內存使用率
+    average_process_usage: float  # 平均進程內存使用率
+    peak_process_usage: float  # 峰值進程內存使用率
+    alerts_count: int  # 警告數量
+    cleanup_triggers: int  # 清理觸發次數
+    memory_trend: str  # 內存趨勢 (stable, increasing, decreasing)
+
+
+class MemoryMonitor:
+    """集成式內存監控器"""
+    
+    def __init__(self, 
+                 warning_threshold: float = 0.8,
+                 critical_threshold: float = 0.9,
+                 emergency_threshold: float = 0.95,
+                 monitoring_interval: int = 30,
+                 max_snapshots: int = 1000):
+        """
+        初始化內存監控器
+        
+        Args:
+            warning_threshold: 警告閾值 (0.0-1.0)
+            critical_threshold: 危險閾值 (0.0-1.0)
+            emergency_threshold: 緊急閾值 (0.0-1.0)
+            monitoring_interval: 監控間隔 (秒)
+            max_snapshots: 最大快照數量
+        """
+        self.warning_threshold = warning_threshold
+        self.critical_threshold = critical_threshold
+        self.emergency_threshold = emergency_threshold
+        self.monitoring_interval = monitoring_interval
+        self.max_snapshots = max_snapshots
+        
+        # 監控狀態
+        self.is_monitoring = False
+        self.monitor_thread: Optional[threading.Thread] = None
+        self._stop_event = threading.Event()
+        
+        # 數據存儲
+        self.snapshots: deque = deque(maxlen=max_snapshots)
+        self.alerts: List[MemoryAlert] = []
+        self.max_alerts = 100
+        
+        # 回調函數
+        self.cleanup_callbacks: List[Callable] = []
+        self.alert_callbacks: List[Callable[[MemoryAlert], None]] = []
+        
+        # 統計數據
+        self.start_time: Optional[datetime] = None
+        self.cleanup_triggers_count = 0
+        
+        # 進程信息
+        self.process = psutil.Process()
+        
+        debug_log("MemoryMonitor 初始化完成")
+    
+    def start_monitoring(self) -> bool:
+        """
+        開始內存監控
+        
+        Returns:
+            bool: 是否成功啟動
+        """
+        if self.is_monitoring:
+            debug_log("內存監控已在運行")
+            return True
+        
+        try:
+            self.is_monitoring = True
+            self.start_time = datetime.now()
+            self._stop_event.clear()
+            
+            self.monitor_thread = threading.Thread(
+                target=self._monitoring_loop,
+                name="MemoryMonitor",
+                daemon=True
+            )
+            self.monitor_thread.start()
+            
+            debug_log(f"內存監控已啟動，間隔 {self.monitoring_interval} 秒")
+            return True
+            
+        except Exception as e:
+            self.is_monitoring = False
+            error_id = ErrorHandler.log_error_with_context(
+                e,
+                context={"operation": "啟動內存監控"},
+                error_type=ErrorType.SYSTEM
+            )
+            debug_log(f"啟動內存監控失敗 [錯誤ID: {error_id}]: {e}")
+            return False
+    
+    def stop_monitoring(self) -> bool:
+        """
+        停止內存監控
+        
+        Returns:
+            bool: 是否成功停止
+        """
+        if not self.is_monitoring:
+            debug_log("內存監控未在運行")
+            return True
+        
+        try:
+            self.is_monitoring = False
+            self._stop_event.set()
+            
+            if self.monitor_thread and self.monitor_thread.is_alive():
+                self.monitor_thread.join(timeout=5)
+            
+            debug_log("內存監控已停止")
+            return True
+            
+        except Exception as e:
+            error_id = ErrorHandler.log_error_with_context(
+                e,
+                context={"operation": "停止內存監控"},
+                error_type=ErrorType.SYSTEM
+            )
+            debug_log(f"停止內存監控失敗 [錯誤ID: {error_id}]: {e}")
+            return False
+    
+    def _monitoring_loop(self):
+        """內存監控主循環"""
+        debug_log("內存監控循環開始")
+        
+        while not self._stop_event.is_set():
+            try:
+                # 收集內存快照
+                snapshot = self._collect_memory_snapshot()
+                self.snapshots.append(snapshot)
+                
+                # 檢查內存使用情況
+                self._check_memory_usage(snapshot)
+                
+                # 等待下次監控
+                if self._stop_event.wait(self.monitoring_interval):
+                    break
+                    
+            except Exception as e:
+                error_id = ErrorHandler.log_error_with_context(
+                    e,
+                    context={"operation": "內存監控循環"},
+                    error_type=ErrorType.SYSTEM
+                )
+                debug_log(f"內存監控循環錯誤 [錯誤ID: {error_id}]: {e}")
+                
+                # 發生錯誤時等待較短時間後重試
+                if self._stop_event.wait(5):
+                    break
+        
+        debug_log("內存監控循環結束")
+    
+    def _collect_memory_snapshot(self) -> MemorySnapshot:
+        """收集內存快照"""
+        try:
+            # 系統內存信息
+            system_memory = psutil.virtual_memory()
+            
+            # 進程內存信息
+            process_memory = self.process.memory_info()
+            process_percent = self.process.memory_percent()
+            
+            # Python 垃圾回收信息
+            gc_objects = len(gc.get_objects())
+            
+            return MemorySnapshot(
+                timestamp=datetime.now(),
+                system_total=system_memory.total,
+                system_available=system_memory.available,
+                system_used=system_memory.used,
+                system_percent=system_memory.percent,
+                process_rss=process_memory.rss,
+                process_vms=process_memory.vms,
+                process_percent=process_percent,
+                gc_objects=gc_objects
+            )
+            
+        except Exception as e:
+            error_id = ErrorHandler.log_error_with_context(
+                e,
+                context={"operation": "收集內存快照"},
+                error_type=ErrorType.SYSTEM
+            )
+            debug_log(f"收集內存快照失敗 [錯誤ID: {error_id}]: {e}")
+            raise
+    
+    def _check_memory_usage(self, snapshot: MemorySnapshot):
+        """檢查內存使用情況並觸發相應動作"""
+        usage_percent = snapshot.system_percent / 100.0
+        
+        # 檢查緊急閾值
+        if usage_percent >= self.emergency_threshold:
+            alert = MemoryAlert(
+                level="emergency",
+                message=f"內存使用率達到緊急水平: {snapshot.system_percent:.1f}%",
+                timestamp=snapshot.timestamp,
+                memory_percent=snapshot.system_percent,
+                recommended_action="立即執行強制清理和垃圾回收"
+            )
+            self._handle_alert(alert)
+            self._trigger_emergency_cleanup()
+            
+        # 檢查危險閾值
+        elif usage_percent >= self.critical_threshold:
+            alert = MemoryAlert(
+                level="critical",
+                message=f"內存使用率達到危險水平: {snapshot.system_percent:.1f}%",
+                timestamp=snapshot.timestamp,
+                memory_percent=snapshot.system_percent,
+                recommended_action="執行資源清理和垃圾回收"
+            )
+            self._handle_alert(alert)
+            self._trigger_cleanup()
+            
+        # 檢查警告閾值
+        elif usage_percent >= self.warning_threshold:
+            alert = MemoryAlert(
+                level="warning",
+                message=f"內存使用率較高: {snapshot.system_percent:.1f}%",
+                timestamp=snapshot.timestamp,
+                memory_percent=snapshot.system_percent,
+                recommended_action="考慮執行輕量級清理"
+            )
+            self._handle_alert(alert)
+    
+    def _handle_alert(self, alert: MemoryAlert):
+        """處理內存警告"""
+        # 添加到警告列表
+        self.alerts.append(alert)
+        
+        # 限制警告數量
+        if len(self.alerts) > self.max_alerts:
+            self.alerts = self.alerts[-self.max_alerts:]
+        
+        # 調用警告回調
+        for callback in self.alert_callbacks:
+            try:
+                callback(alert)
+            except Exception as e:
+                debug_log(f"警告回調執行失敗: {e}")
+        
+        debug_log(f"內存警告 [{alert.level}]: {alert.message}")
+    
+    def _trigger_cleanup(self):
+        """觸發清理操作"""
+        self.cleanup_triggers_count += 1
+        debug_log("觸發內存清理操作")
+        
+        # 執行 Python 垃圾回收
+        collected = gc.collect()
+        debug_log(f"垃圾回收清理了 {collected} 個對象")
+        
+        # 調用清理回調
+        for callback in self.cleanup_callbacks:
+            try:
+                callback()
+            except Exception as e:
+                debug_log(f"清理回調執行失敗: {e}")
+    
+    def _trigger_emergency_cleanup(self):
+        """觸發緊急清理操作"""
+        debug_log("觸發緊急內存清理操作")
+        
+        # 執行強制垃圾回收
+        for _ in range(3):
+            collected = gc.collect()
+            debug_log(f"強制垃圾回收清理了 {collected} 個對象")
+        
+        # 調用清理回調（強制模式）
+        for callback in self.cleanup_callbacks:
+            try:
+                if hasattr(callback, '__call__'):
+                    # 嘗試傳遞 force 參數
+                    import inspect
+                    sig = inspect.signature(callback)
+                    if 'force' in sig.parameters:
+                        callback(force=True)
+                    else:
+                        callback()
+                else:
+                    callback()
+            except Exception as e:
+                debug_log(f"緊急清理回調執行失敗: {e}")
+
+
+    def add_cleanup_callback(self, callback: Callable):
+        """添加清理回調函數"""
+        if callback not in self.cleanup_callbacks:
+            self.cleanup_callbacks.append(callback)
+            debug_log("添加清理回調函數")
+
+    def add_alert_callback(self, callback: Callable[[MemoryAlert], None]):
+        """添加警告回調函數"""
+        if callback not in self.alert_callbacks:
+            self.alert_callbacks.append(callback)
+            debug_log("添加警告回調函數")
+
+    def remove_cleanup_callback(self, callback: Callable):
+        """移除清理回調函數"""
+        if callback in self.cleanup_callbacks:
+            self.cleanup_callbacks.remove(callback)
+            debug_log("移除清理回調函數")
+
+    def remove_alert_callback(self, callback: Callable[[MemoryAlert], None]):
+        """移除警告回調函數"""
+        if callback in self.alert_callbacks:
+            self.alert_callbacks.remove(callback)
+            debug_log("移除警告回調函數")
+
+    def get_current_memory_info(self) -> Dict[str, Any]:
+        """獲取當前內存信息"""
+        try:
+            snapshot = self._collect_memory_snapshot()
+            return {
+                "timestamp": snapshot.timestamp.isoformat(),
+                "system": {
+                    "total_gb": round(snapshot.system_total / (1024**3), 2),
+                    "available_gb": round(snapshot.system_available / (1024**3), 2),
+                    "used_gb": round(snapshot.system_used / (1024**3), 2),
+                    "usage_percent": round(snapshot.system_percent, 1)
+                },
+                "process": {
+                    "rss_mb": round(snapshot.process_rss / (1024**2), 2),
+                    "vms_mb": round(snapshot.process_vms / (1024**2), 2),
+                    "usage_percent": round(snapshot.process_percent, 1)
+                },
+                "gc_objects": snapshot.gc_objects,
+                "status": self._get_memory_status(snapshot.system_percent / 100.0)
+            }
+        except Exception as e:
+            error_id = ErrorHandler.log_error_with_context(
+                e,
+                context={"operation": "獲取當前內存信息"},
+                error_type=ErrorType.SYSTEM
+            )
+            debug_log(f"獲取內存信息失敗 [錯誤ID: {error_id}]: {e}")
+            return {}
+
+    def get_memory_stats(self) -> MemoryStats:
+        """獲取內存統計數據"""
+        if not self.snapshots:
+            return MemoryStats(
+                monitoring_duration=0.0,
+                snapshots_count=0,
+                average_system_usage=0.0,
+                peak_system_usage=0.0,
+                average_process_usage=0.0,
+                peak_process_usage=0.0,
+                alerts_count=0,
+                cleanup_triggers=0,
+                memory_trend="unknown"
+            )
+
+        # 計算統計數據
+        system_usages = [s.system_percent for s in self.snapshots]
+        process_usages = [s.process_percent for s in self.snapshots]
+
+        duration = 0.0
+        if self.start_time:
+            duration = (datetime.now() - self.start_time).total_seconds()
+
+        return MemoryStats(
+            monitoring_duration=duration,
+            snapshots_count=len(self.snapshots),
+            average_system_usage=sum(system_usages) / len(system_usages),
+            peak_system_usage=max(system_usages),
+            average_process_usage=sum(process_usages) / len(process_usages),
+            peak_process_usage=max(process_usages),
+            alerts_count=len(self.alerts),
+            cleanup_triggers=self.cleanup_triggers_count,
+            memory_trend=self._analyze_memory_trend()
+        )
+
+    def get_recent_alerts(self, limit: int = 10) -> List[MemoryAlert]:
+        """獲取最近的警告"""
+        return self.alerts[-limit:] if self.alerts else []
+
+    def _get_memory_status(self, usage_percent: float) -> str:
+        """獲取內存狀態描述"""
+        if usage_percent >= self.emergency_threshold:
+            return "emergency"
+        elif usage_percent >= self.critical_threshold:
+            return "critical"
+        elif usage_percent >= self.warning_threshold:
+            return "warning"
+        else:
+            return "normal"
+
+    def _analyze_memory_trend(self) -> str:
+        """分析內存使用趨勢"""
+        if len(self.snapshots) < 10:
+            return "insufficient_data"
+
+        # 取最近的快照進行趨勢分析
+        recent_snapshots = list(self.snapshots)[-10:]
+        usages = [s.system_percent for s in recent_snapshots]
+
+        # 簡單的線性趨勢分析
+        first_half = usages[:5]
+        second_half = usages[5:]
+
+        avg_first = sum(first_half) / len(first_half)
+        avg_second = sum(second_half) / len(second_half)
+
+        diff = avg_second - avg_first
+
+        if abs(diff) < 2.0:  # 變化小於 2%
+            return "stable"
+        elif diff > 0:
+            return "increasing"
+        else:
+            return "decreasing"
+
+    def force_cleanup(self):
+        """手動觸發清理操作"""
+        debug_log("手動觸發內存清理")
+        self._trigger_cleanup()
+
+    def force_emergency_cleanup(self):
+        """手動觸發緊急清理操作"""
+        debug_log("手動觸發緊急內存清理")
+        self._trigger_emergency_cleanup()
+
+    def reset_stats(self):
+        """重置統計數據"""
+        self.snapshots.clear()
+        self.alerts.clear()
+        self.cleanup_triggers_count = 0
+        self.start_time = datetime.now() if self.is_monitoring else None
+        debug_log("內存監控統計數據已重置")
+
+    def export_memory_data(self) -> Dict[str, Any]:
+        """導出內存數據"""
+        return {
+            "config": {
+                "warning_threshold": self.warning_threshold,
+                "critical_threshold": self.critical_threshold,
+                "emergency_threshold": self.emergency_threshold,
+                "monitoring_interval": self.monitoring_interval
+            },
+            "current_info": self.get_current_memory_info(),
+            "stats": self.get_memory_stats().__dict__,
+            "recent_alerts": [
+                {
+                    "level": alert.level,
+                    "message": alert.message,
+                    "timestamp": alert.timestamp.isoformat(),
+                    "memory_percent": alert.memory_percent,
+                    "recommended_action": alert.recommended_action
+                }
+                for alert in self.get_recent_alerts()
+            ],
+            "is_monitoring": self.is_monitoring
+        }
+
+
+# 全域內存監控器實例
+_memory_monitor: Optional[MemoryMonitor] = None
+_monitor_lock = threading.Lock()
+
+
+def get_memory_monitor() -> MemoryMonitor:
+    """獲取全域內存監控器實例"""
+    global _memory_monitor
+    if _memory_monitor is None:
+        with _monitor_lock:
+            if _memory_monitor is None:
+                _memory_monitor = MemoryMonitor()
+    return _memory_monitor

src/mcp_feedback_enhanced/utils/resource_manager.py

@@ -83,8 +83,70 @@ class ResourceManager:
         # 啟動自動清理
         self._start_auto_cleanup()
 
+        # 集成內存監控
+        self._setup_memory_monitoring()
+
         debug_log("ResourceManager 初始化完成")
 
+    def _setup_memory_monitoring(self):
+        """設置內存監控集成"""
+        try:
+            # 延遲導入避免循環依賴
+            from .memory_monitor import get_memory_monitor
+
+            self.memory_monitor = get_memory_monitor()
+
+            # 註冊清理回調
+            self.memory_monitor.add_cleanup_callback(self._memory_triggered_cleanup)
+
+            # 啟動內存監控
+            if self.memory_monitor.start_monitoring():
+                debug_log("內存監控已集成到資源管理器")
+            else:
+                debug_log("內存監控啟動失敗")
+
+        except Exception as e:
+            error_id = ErrorHandler.log_error_with_context(
+                e,
+                context={"operation": "設置內存監控"},
+                error_type=ErrorType.SYSTEM
+            )
+            debug_log(f"設置內存監控失敗 [錯誤ID: {error_id}]: {e}")
+
+    def _memory_triggered_cleanup(self, force: bool = False):
+        """內存監控觸發的清理操作"""
+        debug_log(f"內存監控觸發清理操作 (force={force})")
+
+        try:
+            # 清理臨時文件
+            cleaned_files = self.cleanup_temp_files()
+
+            # 清理臨時目錄
+            cleaned_dirs = self.cleanup_temp_dirs()
+
+            # 清理文件句柄
+            cleaned_handles = self.cleanup_file_handles()
+
+            # 如果是強制清理，也清理進程
+            cleaned_processes = 0
+            if force:
+                cleaned_processes = self.cleanup_processes(force=True)
+
+            debug_log(f"內存觸發清理完成: 文件={cleaned_files}, 目錄={cleaned_dirs}, "
+                     f"句柄={cleaned_handles}, 進程={cleaned_processes}")
+
+            # 更新統計
+            self.stats["cleanup_runs"] += 1
+            self.stats["last_cleanup"] = time.time()
+
+        except Exception as e:
+            error_id = ErrorHandler.log_error_with_context(
+                e,
+                context={"operation": "內存觸發清理", "force": force},
+                error_type=ErrorType.SYSTEM
+            )
+            debug_log(f"內存觸發清理失敗 [錯誤ID: {error_id}]: {e}")
+
     def create_temp_file(
         self, 
         suffix: str = "", 
@@ -620,6 +682,22 @@ class ResourceManager:
             "temp_file_max_age": self.temp_file_max_age
         })
 
+        # 添加內存監控統計
+        try:
+            if hasattr(self, 'memory_monitor') and self.memory_monitor:
+                memory_info = self.memory_monitor.get_current_memory_info()
+                memory_stats = self.memory_monitor.get_memory_stats()
+
+                current_stats.update({
+                    "memory_monitoring_enabled": self.memory_monitor.is_monitoring,
+                    "current_memory_usage": memory_info.get("system", {}).get("usage_percent", 0),
+                    "memory_status": memory_info.get("status", "unknown"),
+                    "memory_cleanup_triggers": memory_stats.cleanup_triggers,
+                    "memory_alerts_count": memory_stats.alerts_count
+                })
+        except Exception as e:
+            debug_log(f"獲取內存統計失敗: {e}")
+
         return current_stats
 
     def get_detailed_info(self) -> Dict[str, Any]:

src/mcp_feedback_enhanced/web/main.py

@@ -32,6 +32,7 @@ from .utils import find_free_port, get_browser_opener
 from .utils.port_manager import PortManager
 from .utils.compression_config import get_compression_manager
 from ..utils.error_handler import ErrorHandler, ErrorType
+from ..utils.memory_monitor import get_memory_monitor
 from ..debug import web_debug_log as debug_log
 from ..i18n import get_i18n_manager
 
@@ -71,6 +72,9 @@ class WebUIManager:
         # 設置壓縮和緩存中間件
         self._setup_compression_middleware()
 
+        # 設置內存監控
+        self._setup_memory_monitoring()
+
         # 重構：使用單一活躍會話而非會話字典
         self.current_session: Optional[WebFeedbackSession] = None
         self.sessions: Dict[str, WebFeedbackSession] = {}  # 保留用於向後兼容
@@ -136,6 +140,33 @@ class WebUIManager:
 
         debug_log("壓縮和緩存中間件設置完成")
 
+    def _setup_memory_monitoring(self):
+        """設置內存監控"""
+        try:
+            self.memory_monitor = get_memory_monitor()
+
+            # 添加 Web 應用特定的警告回調
+            def web_memory_alert(alert):
+                debug_log(f"Web UI 內存警告 [{alert.level}]: {alert.message}")
+                # 可以在這裡添加更多 Web 特定的處理邏輯
+                # 例如：通過 WebSocket 通知前端、記錄到特定日誌等
+
+            self.memory_monitor.add_alert_callback(web_memory_alert)
+
+            # 確保內存監控已啟動（ResourceManager 可能已經啟動了）
+            if not self.memory_monitor.is_monitoring:
+                self.memory_monitor.start_monitoring()
+
+            debug_log("Web UI 內存監控設置完成")
+
+        except Exception as e:
+            error_id = ErrorHandler.log_error_with_context(
+                e,
+                context={"operation": "設置 Web UI 內存監控"},
+                error_type=ErrorType.SYSTEM
+            )
+            debug_log(f"設置 Web UI 內存監控失敗 [錯誤ID: {error_id}]: {e}")
+
     def _setup_static_files(self):
         """設置靜態文件服務"""
         # Web UI 靜態文件

tests/test_memory_monitor.py

@@ -0,0 +1,388 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+內存監控系統測試
+================
+
+測試集成式內存監控系統的功能，包括：
+- 內存監控準確性
+- 警告機制
+- 清理觸發
+- 統計和分析功能
+"""
+
+import pytest
+import time
+import threading
+from unittest.mock import Mock, patch, MagicMock
+from datetime import datetime, timedelta
+
+from src.mcp_feedback_enhanced.utils.memory_monitor import (
+    MemoryMonitor, MemorySnapshot, MemoryAlert, MemoryStats,
+    get_memory_monitor
+)
+
+
+class TestMemorySnapshot:
+    """測試內存快照數據類"""
+    
+    def test_memory_snapshot_creation(self):
+        """測試內存快照創建"""
+        snapshot = MemorySnapshot(
+            timestamp=datetime.now(),
+            system_total=8 * 1024**3,  # 8GB
+            system_available=4 * 1024**3,  # 4GB
+            system_used=4 * 1024**3,  # 4GB
+            system_percent=50.0,
+            process_rss=100 * 1024**2,  # 100MB
+            process_vms=200 * 1024**2,  # 200MB
+            process_percent=1.25,
+            gc_objects=10000
+        )
+        
+        assert snapshot.system_total == 8 * 1024**3
+        assert snapshot.system_percent == 50.0
+        assert snapshot.process_rss == 100 * 1024**2
+        assert snapshot.gc_objects == 10000
+
+
+class TestMemoryAlert:
+    """測試內存警告數據類"""
+    
+    def test_memory_alert_creation(self):
+        """測試內存警告創建"""
+        alert = MemoryAlert(
+            level="warning",
+            message="內存使用率較高: 85.0%",
+            timestamp=datetime.now(),
+            memory_percent=85.0,
+            recommended_action="考慮執行輕量級清理"
+        )
+        
+        assert alert.level == "warning"
+        assert alert.memory_percent == 85.0
+        assert "85.0%" in alert.message
+
+
+class TestMemoryMonitor:
+    """測試內存監控器"""
+    
+    def test_monitor_initialization(self):
+        """測試監控器初始化"""
+        monitor = MemoryMonitor(
+            warning_threshold=0.7,
+            critical_threshold=0.85,
+            emergency_threshold=0.95,
+            monitoring_interval=10
+        )
+        
+        assert monitor.warning_threshold == 0.7
+        assert monitor.critical_threshold == 0.85
+        assert monitor.emergency_threshold == 0.95
+        assert monitor.monitoring_interval == 10
+        assert not monitor.is_monitoring
+        assert len(monitor.snapshots) == 0
+        assert len(monitor.alerts) == 0
+    
+    @patch('src.mcp_feedback_enhanced.utils.memory_monitor.psutil')
+    def test_collect_memory_snapshot(self, mock_psutil):
+        """測試內存快照收集"""
+        # 模擬 psutil 返回值
+        mock_virtual_memory = Mock()
+        mock_virtual_memory.total = 8 * 1024**3
+        mock_virtual_memory.available = 4 * 1024**3
+        mock_virtual_memory.used = 4 * 1024**3
+        mock_virtual_memory.percent = 50.0
+        
+        mock_memory_info = Mock()
+        mock_memory_info.rss = 100 * 1024**2
+        mock_memory_info.vms = 200 * 1024**2
+        
+        mock_process = Mock()
+        mock_process.memory_info.return_value = mock_memory_info
+        mock_process.memory_percent.return_value = 1.25
+        
+        mock_psutil.virtual_memory.return_value = mock_virtual_memory
+        mock_psutil.Process.return_value = mock_process
+        
+        monitor = MemoryMonitor()
+        snapshot = monitor._collect_memory_snapshot()
+        
+        assert snapshot.system_total == 8 * 1024**3
+        assert snapshot.system_percent == 50.0
+        assert snapshot.process_rss == 100 * 1024**2
+        assert snapshot.process_percent == 1.25
+    
+    def test_memory_status_classification(self):
+        """測試內存狀態分類"""
+        monitor = MemoryMonitor(
+            warning_threshold=0.8,
+            critical_threshold=0.9,
+            emergency_threshold=0.95
+        )
+        
+        assert monitor._get_memory_status(0.5) == "normal"
+        assert monitor._get_memory_status(0.85) == "warning"
+        assert monitor._get_memory_status(0.92) == "critical"
+        assert monitor._get_memory_status(0.97) == "emergency"
+    
+    def test_callback_management(self):
+        """測試回調函數管理"""
+        monitor = MemoryMonitor()
+        
+        cleanup_callback = Mock()
+        alert_callback = Mock()
+        
+        # 添加回調
+        monitor.add_cleanup_callback(cleanup_callback)
+        monitor.add_alert_callback(alert_callback)
+        
+        assert cleanup_callback in monitor.cleanup_callbacks
+        assert alert_callback in monitor.alert_callbacks
+        
+        # 移除回調
+        monitor.remove_cleanup_callback(cleanup_callback)
+        monitor.remove_alert_callback(alert_callback)
+        
+        assert cleanup_callback not in monitor.cleanup_callbacks
+        assert alert_callback not in monitor.alert_callbacks
+    
+    @patch('src.mcp_feedback_enhanced.utils.memory_monitor.gc')
+    def test_cleanup_triggering(self, mock_gc):
+        """測試清理觸發"""
+        monitor = MemoryMonitor()
+        cleanup_callback = Mock()
+        monitor.add_cleanup_callback(cleanup_callback)
+        
+        mock_gc.collect.return_value = 42
+        
+        # 測試普通清理
+        monitor._trigger_cleanup()
+        
+        assert monitor.cleanup_triggers_count == 1
+        cleanup_callback.assert_called_once()
+        mock_gc.collect.assert_called()
+        
+        # 測試緊急清理
+        cleanup_callback.reset_mock()
+        mock_gc.collect.reset_mock()
+        
+        monitor._trigger_emergency_cleanup()
+        
+        # 緊急清理會調用多次垃圾回收
+        assert mock_gc.collect.call_count == 3
+    
+    @patch('src.mcp_feedback_enhanced.utils.memory_monitor.psutil')
+    def test_memory_usage_checking(self, mock_psutil):
+        """測試內存使用檢查和警告觸發"""
+        monitor = MemoryMonitor(
+            warning_threshold=0.8,
+            critical_threshold=0.9,
+            emergency_threshold=0.95
+        )
+        
+        alert_callback = Mock()
+        cleanup_callback = Mock()
+        monitor.add_alert_callback(alert_callback)
+        monitor.add_cleanup_callback(cleanup_callback)
+        
+        # 模擬不同的內存使用情況
+        test_cases = [
+            (75.0, "normal", 0, 0),  # 正常情況
+            (85.0, "warning", 1, 0),  # 警告情況
+            (92.0, "critical", 1, 1),  # 危險情況
+            (97.0, "emergency", 1, 1),  # 緊急情況
+        ]
+        
+        for memory_percent, expected_status, expected_alerts, expected_cleanups in test_cases:
+            # 重置計數器
+            alert_callback.reset_mock()
+            cleanup_callback.reset_mock()
+            monitor.alerts.clear()
+            monitor.cleanup_triggers_count = 0
+            
+            # 創建模擬快照
+            snapshot = MemorySnapshot(
+                timestamp=datetime.now(),
+                system_total=8 * 1024**3,
+                system_available=int(8 * 1024**3 * (100 - memory_percent) / 100),
+                system_used=int(8 * 1024**3 * memory_percent / 100),
+                system_percent=memory_percent,
+                process_rss=100 * 1024**2,
+                process_vms=200 * 1024**2,
+                process_percent=1.25,
+                gc_objects=10000
+            )
+            
+            # 檢查內存使用
+            monitor._check_memory_usage(snapshot)
+            
+            # 驗證結果
+            assert monitor._get_memory_status(memory_percent / 100.0) == expected_status
+            
+            if expected_alerts > 0:
+                assert len(monitor.alerts) == expected_alerts
+                assert alert_callback.call_count == expected_alerts
+            
+            if expected_cleanups > 0:
+                assert cleanup_callback.call_count == expected_cleanups
+    
+    def test_memory_trend_analysis(self):
+        """測試內存趨勢分析"""
+        monitor = MemoryMonitor()
+        
+        # 測試數據不足的情況
+        assert monitor._analyze_memory_trend() == "insufficient_data"
+        
+        # 添加穩定趨勢的快照
+        base_time = datetime.now()
+        for i in range(10):
+            snapshot = MemorySnapshot(
+                timestamp=base_time + timedelta(seconds=i * 30),
+                system_total=8 * 1024**3,
+                system_available=4 * 1024**3,
+                system_used=4 * 1024**3,
+                system_percent=50.0 + (i % 2),  # 輕微波動
+                process_rss=100 * 1024**2,
+                process_vms=200 * 1024**2,
+                process_percent=1.25,
+                gc_objects=10000
+            )
+            monitor.snapshots.append(snapshot)
+        
+        assert monitor._analyze_memory_trend() == "stable"
+        
+        # 清空並添加遞增趨勢的快照
+        monitor.snapshots.clear()
+        for i in range(10):
+            snapshot = MemorySnapshot(
+                timestamp=base_time + timedelta(seconds=i * 30),
+                system_total=8 * 1024**3,
+                system_available=4 * 1024**3,
+                system_used=4 * 1024**3,
+                system_percent=50.0 + i * 2,  # 遞增趨勢
+                process_rss=100 * 1024**2,
+                process_vms=200 * 1024**2,
+                process_percent=1.25,
+                gc_objects=10000
+            )
+            monitor.snapshots.append(snapshot)
+        
+        assert monitor._analyze_memory_trend() == "increasing"
+    
+    @patch('src.mcp_feedback_enhanced.utils.memory_monitor.psutil')
+    def test_get_current_memory_info(self, mock_psutil):
+        """測試獲取當前內存信息"""
+        # 模擬 psutil 返回值
+        mock_virtual_memory = Mock()
+        mock_virtual_memory.total = 8 * 1024**3
+        mock_virtual_memory.available = 4 * 1024**3
+        mock_virtual_memory.used = 4 * 1024**3
+        mock_virtual_memory.percent = 50.0
+        
+        mock_memory_info = Mock()
+        mock_memory_info.rss = 100 * 1024**2
+        mock_memory_info.vms = 200 * 1024**2
+        
+        mock_process = Mock()
+        mock_process.memory_info.return_value = mock_memory_info
+        mock_process.memory_percent.return_value = 1.25
+        
+        mock_psutil.virtual_memory.return_value = mock_virtual_memory
+        mock_psutil.Process.return_value = mock_process
+        
+        monitor = MemoryMonitor()
+        info = monitor.get_current_memory_info()
+        
+        assert "system" in info
+        assert "process" in info
+        assert info["system"]["total_gb"] == 8.0
+        assert info["system"]["usage_percent"] == 50.0
+        assert info["process"]["rss_mb"] == 100.0
+        assert info["status"] == "normal"
+    
+    def test_memory_stats_calculation(self):
+        """測試內存統計計算"""
+        monitor = MemoryMonitor()
+        monitor.start_time = datetime.now() - timedelta(minutes=5)
+        
+        # 添加一些測試快照
+        base_time = datetime.now()
+        for i in range(5):
+            snapshot = MemorySnapshot(
+                timestamp=base_time + timedelta(seconds=i * 30),
+                system_total=8 * 1024**3,
+                system_available=4 * 1024**3,
+                system_used=4 * 1024**3,
+                system_percent=50.0 + i * 5,  # 50%, 55%, 60%, 65%, 70%
+                process_rss=100 * 1024**2,
+                process_vms=200 * 1024**2,
+                process_percent=1.0 + i * 0.2,  # 1.0%, 1.2%, 1.4%, 1.6%, 1.8%
+                gc_objects=10000
+            )
+            monitor.snapshots.append(snapshot)
+        
+        # 添加一些警告
+        monitor.alerts.append(MemoryAlert(
+            level="warning",
+            message="Test warning",
+            timestamp=datetime.now(),
+            memory_percent=85.0,
+            recommended_action="Test action"
+        ))
+        
+        monitor.cleanup_triggers_count = 2
+        
+        stats = monitor.get_memory_stats()
+        
+        assert stats.snapshots_count == 5
+        assert stats.average_system_usage == 60.0  # (50+55+60+65+70)/5
+        assert stats.peak_system_usage == 70.0
+        assert stats.average_process_usage == 1.4  # (1.0+1.2+1.4+1.6+1.8)/5
+        assert stats.peak_process_usage == 1.8
+        assert stats.alerts_count == 1
+        assert stats.cleanup_triggers == 2
+        assert stats.monitoring_duration > 0
+    
+    def test_export_memory_data(self):
+        """測試內存數據導出"""
+        monitor = MemoryMonitor()
+        
+        # 添加一些測試數據
+        monitor.alerts.append(MemoryAlert(
+            level="warning",
+            message="Test warning",
+            timestamp=datetime.now(),
+            memory_percent=85.0,
+            recommended_action="Test action"
+        ))
+        
+        with patch.object(monitor, 'get_current_memory_info') as mock_info:
+            mock_info.return_value = {
+                "system": {"usage_percent": 75.0},
+                "status": "warning"
+            }
+            
+            exported_data = monitor.export_memory_data()
+            
+            assert "config" in exported_data
+            assert "current_info" in exported_data
+            assert "stats" in exported_data
+            assert "recent_alerts" in exported_data
+            assert "is_monitoring" in exported_data
+            
+            assert exported_data["config"]["warning_threshold"] == 0.8
+            assert len(exported_data["recent_alerts"]) == 1
+
+
+def test_global_memory_monitor_singleton():
+    """測試全域內存監控器單例模式"""
+    monitor1 = get_memory_monitor()
+    monitor2 = get_memory_monitor()
+    
+    assert monitor1 is monitor2
+    assert isinstance(monitor1, MemoryMonitor)
+
+
+if __name__ == "__main__":
+    pytest.main([__file__, "-v"])