TestAttribute
Marks the method as callable from the NUnit test runner.
             
                
The author of this test
            
Descriptive text for this test
            
Gets or sets the expected result. Not valid if the test
            method has parameters.
            
The type that this test is testing
            
public TestAttribute()
Modifies a test by adding a description, if not already set.
            
Builds a single test from the specified method and context.