Unit testing with - System.ServiceModel.Web.WebOperationContext - causes a Null exception

Question

I need to ask about that I'm working now on a unit test, and I'm trying to make a test on a specific method within a service.

Inside the method, we have this piece of code

System.ServiceModel.Web.WebOperationContext.Current.IncomingRequest.Headers["KindOfImportantHeader"]; When calling a method I faced a problem with a null exception because the headers are empty.

The issue is that I can't change the implementation of the service and the method; which doesn't allow me to make a (Mock) to pass this issue.

The only change can I perform is just inside the unit test.

So, How can I pass values to headers from the unit test?

Unit Test Framework: XUnit

Unit Test Target Framework: .NET 4.6.1

Service Framework: .NET 4.6.1

Thank You All.

Answer 1

U can create a wrapper around static!

For example :

public class IncomingRequstWrapper
  {
      public virtual string KindOfImportantHeader
      {
         get
         {
            return System.ServiceModel.Web.WebOperationContext.Current.IncomingRequest.Headers["KindOfImportantHeader"]
         }
      }
  }

Then you can mock this wrapper.