内部异常的属性被处置？

问题描述

我正在为WCF Web服务编写单元测试。我故意向服务器发送一个无效的请求，该请求会引发一个 WebExceptionFault< string> 。在单元测试中，被捕获的异常是 EndpointNotFoundException ，标准 WebException 在 InnerException 属性。我想验证响应的身体匹配我认为应该在那里的字符串。

然而，我正在遇到一个问题，因为 WebException的响应属性（这是一个 System.Net.SyncMemoryStream ）被处理，无法读取。

我的代码：

 俱乐部实际; 
 try 
 {
 //201是第一个参数的无效参数
 actual = new Clubs（channel.GetClubs（201，123））; 
} 
 catch（EndpointNotFoundException e）
 {
 WebException w = e.InnerException as WebException; 
 Assert.IsNotNull（w）; 
 
 HttpWebResponse resp = w.Response作为HttpWebResponse; 
 Assert.IsNotNull（resp）; 
 Assert.AreEqual（resp.StatusCode，HttpStatusCode.NotFound）; 
 //下一行抛出一个ArgumentException说流不可读
 //调查显示已经被处理
（StreamReader sr = new StreamReader（resp.GetResponseStream（）））
 Assert.AreEqual（sr.ReadToEnd（），联盟不允许选定俱乐部）; 
} 
  

InnerException的属性是否正常处理？有没有办法呢？

解决方案

似乎是一个异常序列化问题。您可能必须在服务器和自定义上捕获错误，构建错误消息

I am writing a unit test for a WCF web service. I am deliberately sending an invalid request to the server which throws a WebExceptionFault<string>. In the unit test, the Exception that gets caught is an EndpointNotFoundException with the standard WebException in the InnerException property. I want to verify the body of the response matches the string that I think should be there.

I am coming accross a problem, however, as the Response property of the WebException (which is a System.Net.SyncMemoryStream) is Disposed and can not be read.

My code:

Clubs actual;
try
{
    //"201" is an invalid argument for the first parameter
    actual = new Clubs(channel.GetClubs("201", "123"));
}
catch (EndpointNotFoundException e)
{
    WebException w = e.InnerException as WebException;
    Assert.IsNotNull(w);

    HttpWebResponse resp = w.Response as HttpWebResponse;
    Assert.IsNotNull(resp);
    Assert.AreEqual(resp.StatusCode, HttpStatusCode.NotFound);
    //Next line throws an ArgumentException saying Stream not readable
    //Investigation shows it has been disposed
    using (StreamReader sr = new StreamReader(resp.GetResponseStream()))
        Assert.AreEqual(sr.ReadToEnd(), "League not allowed for selected club");
}

Is it normal that the properties of the InnerException are disposed? Is there any way around this?

解决方案

Seems a Exception serialization issue. You might have to trap the error on server and custom build a error message

How to serialize an Exception object in C#?

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