.NET HttpWebRequest的连接问题模拟

在使用HttpWebRequest类时,是否有方法以编程方式模拟连接问题(连接速度慢、响应未完成、连接被丢弃等)?

谢谢

编辑:更详细地说,我需要这个来调试,但我想最终把它变成一个测试。我正在使用异步方法BeginGetRequestStream、EndGetRequestStream、BeginGetResponse和EndGetResponse。我已经将它们都包装在适当的(我希望)Try Catch块中,该块记录发生的异常。

我知道这在某些情况下是有效的(例如,当我拔出网络电缆时)。但在一些罕见的情况下(即只有当我请求的网站速度很慢时),我的系统会崩溃,我会在事件日志中看到这一点

Exception: System.Net.WebException

Message: The request was aborted: The connection was closed unexpectedly.

StackTrace:    at System.Net.ConnectStream.BeginRead(Byte[] buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)
   at System.IO.Compression.DeflateStream.ReadCallback(IAsyncResult baseStreamResult)
   at System.Net.LazyAsyncResult.Complete(IntPtr userToken)
   at System.Net.ContextAwareResult.CompleteCallback(Object state)
   at System.Threading.ExecutionContext.runTryCode(Object userData)
   at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Net.ContextAwareResult.Complete(IntPtr userToken)
   at System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken)
   at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)
   at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)

我假设它来自HttpWebRequest,但我的所有代码都包装在Try-Catch块中。