Open Source Web Testing Tools in C#
    
        
        
            
                | NUnitAsp is a tool for automatically testing ASP.NET web pages. It's an extension to NUnit.
NUnitAsp is for unit testing ASP.NET code-behind only. It's meant for programmers, not QA teams, and it's not very good for QA-style acceptance tests. It only tests server-side logic. JavaScript and other client-side code is ignored.  | 
            
        
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                | WatiN stands for Web Application Testing in dotNet. Inspired by Watir, WatiN enables web application testing, through Internet Explorer on a Windows platform, expressed in any .Net language. | 
            
        
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                | WET is a opensource web automation testing tool which uses Watir as the library to drive web pages. You dont have to download / install Watir separately or know anything about Watir. Watir is the library that WET uses and it is automatically installed for you.
WET has two components WET-core and WET-UI.  WET-UI is written in C# which does most of the job.
WET drives an IE Browser directly and so the automated testing done using WET is equivalent to how a user would drive the web pages. Using WET, you can perform all the operations required for testing web applications - like automatically clicking a link, entering text in a textfield, clicking a button etc. WET allows you to perform various checks as a part of the testing process by using Checkpoints | 
            
        
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                | IeUnit is a simple framework to test logical behaviors of web pages. It helps software engineers to create, organize and execute functional unit tests. 
IeUnit is an implementation of the xUnit framework in C# and JavaScript language. It uses Windows COM interface to
control the Internet Explorer browser. Apart from web site testing, IeUnit also provides a simple way to to automate web browsing tasks through the smart-bookmark feature. | 
            
        
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