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Clean Web.Config Files (VS 2010 and .NET 4.0 Series)

Posted By :Pankaj Mishra Posted Date :14/09/2009 Points :2 Category :ASP.Net

.NET 4 includes a new version of the CLR, and a new .NET 4 specific machine.config file (which is installed side-by-side with the one used by .NET 2, .NET 3 and .NET 3.5).

The new .NET 4 machine.config file now automatically registers all of the ASP.NET tag sections, handlers and modules that we've added over the years, including the functionality for:

.ASP.NET AJAX
.ASP.NET Dynamic Data
.ASP.NET Routing (which can now be used for both ASP.NET WebForms and ASP.NET MVC)
.ASP.NET Chart Control (which now ships built-into ASP.NET V4)
What this means is that when you create a new "Empty ASP.NET application" project in VS 2010, you'll find that the new default application-level web.config file is now clean and simple:

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One of my NUnit tests has to read in some values from config files. In my main application this process works perfectly well, however when I run the unit test, the code that reads in the values from the config files doesnt read anything in. Ive tried putting app.config in my unit test project (I even tried web.config) but nothing seems to work. Are there any special steps involved when reading from config files in an nunit test ?

NUnit and config files

Ive created an NUnit test project in my solution and have added 3 tests. They all fail with the same error

Systems.Code.Test.TransactionTest.CreateDataContext_ConnectionString_ReturnsDataContextObject:

SetUp : System.TypeInitializationException : The type initializer for 'Systems.Utils.ConstantHelpers' threw an exception.

----> System.NullReferenceException : Object reference not set to an instance of an object.

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SetUp : System.TypeInitializationException : The type initializer for 'Systems.Utils.ConstantHelpers' threw an exception.

----> System.NullReferenceException : Object reference not set to an instance of an object.

heres the test method

[Test]
        public void CreateDataContext_ConnectionString_ReturnsDataCon

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