One more expected calls ??

        [TestMethod()]
        public void StopTest()
        {
            Mock mockMonitor = MockManager.Mock(typeof(ExlMonitor), Constructor.Mocked);
            MockObject<FileSystemWatcher_wrap> mockWatcher = MockManager.MockObject(typeof(FileSystemWatcher_wrap)) as MockObject<FileSystemWatcher_wrap>;

            // create the object and also an accessor to private info
            ExMonitor ExMonObj = new ExMonitor();
            Util_ExMonitorAccessor privateMonitor = new Util_ExMonitorAccessor(ExMonObj);

            mockMonitor.ExpectGet("IsInitialized", true);

            mockWatcher.ExpectSet("EnableRaisingEvents");

            // call the method
            privateMonitor.Stop();
        }

    class ExMonitor 
    {
        private FileSystemWatcher _watcher;
        private bool _isInitialized = false;


        public ExMonitor()
        {
               o o o
        }

        public void Stop()
        {
            if (_isInitialized)
            {
                _watcher.EnableRaisingEvents = false;

                // wait a moment for events to settle
                // in case of race condition (event arrives at same time Stop)
                System.Threading.Thread.Sleep(50);
            }
        }