Question: I am working on an ASP.NET WebForm application using MVP pattern. For every Web Form, there is a Presenter class associated to handle UI and Business logic. However, I had problem when writing unit tests for Presenters, since session values are used in presenters. And there is no HTTP context exists during execution of the unit test ( BTW I use nUnit ), making it is impossible to write unit test for presenters.

Anyone can explain how to unit test these presenters?

Thanks

Answer: 
I belive that you did not undestand that this think you ask, if you going to build it its takes months of design and developing. 

if you search for "web chat webcam" you maybe see why I say that.

For example this <http://www.ivideochat.com/> site have developed a program for that reason. See how complicate it is, how many think have.

Also you did not say, what platform you using, what is your server that going to split the video channels and send them all over the other, are you going to use it for one to one, or all to all, are you going to build it on asp.net ? on linux, on flash, on what ?

Some times small thinks in words, are too huge in developing. 

So for me you must define a lot of thinks and then maybe you can see if you can do that.  

**1**.Media stream server ? example <http://www.adobe.com/products/flashmediaserver/>  

**2**.Developing platform.  

**3**.Number of possible users.  

**4**.The way they goint o interact each other.  

**5**.All of them need to have camera ?  

**6**.What about bad users (that show bad thinks) ?  

**7**.Do they going to chat also ? 

Think about all that first, then maybe is more clear to you what you going to get.
My suggestion is to hire a developer or two who know how to build web-applications involving real-time audio & video capabilities in Flex/Silverlight.