Talk:DATA

Test private methods, fields or properties by using the PrivateObject in the Microsoft Unit Testing. 

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As you know, In Catglobe, we use Reflection to test some private fileds, properties or methods. After several minutes of googling, I found the better solution to solve this issue I think by using PrivateObject class in Microsoft.VisualStudio.TestTools.UnitTesting

Note: To use PrivateObject, you have to add Microsoft.VisualStudio.TestTools.UnitTesting dll to DomainTester.
 
PrivateObject Class: 

•   Invoke method: Used to access the members of the private object.

      eg: 
         YourClass class = new YourClass();
         var privateObject = new PrivateObject(class);
         privateObject.Invoke("YourPrivateMethodName", new object[] { arg1, arg2 } );

         The code above will call the your private method and pass it two integer parameters. This is the equivalent of calling resel.YourPrivateMethodName(arg1, arg2).

•   GetProperty method: Used to get the value of the property of the wrapped object

      eg: 
         YourClass class = new YourClass();
         var privateObject = new PrivateObject(class);
         privateObject.GetProperty("YourPrivatePropertyName", null);         

         The code above will call the your private property. This is the equivalent of calling resel.YourPrivatePropertyName 
         Note: The second argument is a property index 
                  private int Column[int index] 
                  In this case, you will get private property by using privateObject.GetProperty("YourPrivatePropertyName", your index);

•   SetProperty method: Used to set the value of the property of the wrapped object

      eg: 
         YourClass class = new YourClass();
         var privateObject = new PrivateObject(class);
         privateObject.SetProperty("YourPrivatePropertyName", null, new value);

         The code above will call the your private property. This is the equivalent of calling resel.YourPrivatePropertyName = new value 
         Note: The second argument is a property index .

If you want to know in detail, you might visit msnd with link is : http://msdn.microsoft.com/en-us/library/microsoft.visualstudio.testtools.unittesting.privateobject(VS.80).aspx