如何对 SoapExtension 派生类进行单元测试? [英] How to Unit Test a SoapExtension derived class?

问题描述

我有一个源自 SoapExtension 的类.例如，要对 ProcessMessage(SoapMessage) 方法进行单元测试，我需要输入一个 SoapMessage，它是一个抽象类.当我尝试这样做时，我收到一条错误消息，说它没有构造函数.即使我要创建一个派生自 SoapMessage 的新类，我也无法创建自己的构造函数.我不能用模拟绕过这个，因为我需要能够设置 SoapMessage.Stage 属性，以便 ProcessMethod 可以运行它的 switch 语句，但该属性是只读的.我如何获得我自己的 SoapMessage 派生类，我可以设置 .Stage 属性，或者是不可能的，因此不可能进行单元测试?

I have a class deriving from SoapExtension. To unit test, for example, the ProcessMessage(SoapMessage) method, I need to input a SoapMessage, which is an abstract class. When I try doing this, I get an error saying it has no constructors. Even if I were to create a new class deriving from SoapMessage, I can't create my own constructor. I can't bypass this with a mock because I need to be able to set the SoapMessage.Stage property so that the ProcessMethod can run it's switch statement, but that property is readonly. How do I get my own SoapMessage derived class that I can set the .Stage property or is it not possible and thereofore not possible to unit test?

示例:

public override void ProcessMessage(SoapMessage message) 
{
  switch (message.Stage) 
  {
     case SoapMessageStage.BeforeSerialize:
        break;
     case SoapMessageStage.AfterSerialize:
        WriteOutput( message );
        break;
     case SoapMessageStage.BeforeDeserialize:
        WriteInput( message );
        break;
     case SoapMessageStage.AfterDeserialize:
        break;
  }
}

您可以在 MSDN 上看到对 SoapMessage 的解释:http://msdn.microsoft.com/en-us/library/system.web.services.protocols.soapmessage.aspx

You can see an explanation of SoapMessage from MSDN: http://msdn.microsoft.com/en-us/library/system.web.services.protocols.soapmessage.aspx

推荐答案

有一些类型是从 SoapMessage 派生的，但都有内部构造函数.我找不到创建 SoapMessage 的 API，因此您可能需要使用反射来创建类型，如下所示.

There are some types that derive from SoapMessage, but all have internal constructors. I couldn't find an API to create the SoapMessage so you may need to resort to using reflection to create the type as follows.

SoapMessage CreateSoapClientMessage()
{
    return (SoapClientMessage)Activator.CreateInstance(
        typeof(SoapClientMessage),
        BindingFlags.Instance | BindingFlags.NonPublic,
        null,
        new object[] { null, null, null },
        null);
} 

这篇关于如何对 SoapExtension 派生类进行单元测试?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！