gistfile1.cs

namespace Vanquis.NewBusiness.Loans.Services.Tests.Utils
{
    public class ExpectArugmentNullExceptionAttribute : ExpectedExceptionAttribute 
    {
        public ExpectArugmentNullExceptionAttribute(string message)
            : base(typeof(ArgumentNullException))
        {
            ExpectedMessage = message;
            MatchType = MessageMatch.Contains;
        }

        public ExpectArugmentNullExceptionAttribute(string message, MessageMatch messageMatch)
            : base(typeof(ArgumentNullException))
        {
            ExpectedMessage = message;
            MatchType = messageMatch;
        }

    }
}



//EXAMPLE


[Test]
[ExpectArugmentNullException("Parameter name: sessionState")]
public void Constructor_WithNullHttpSessionStateBase_Throws2()
{
    var store = new DefaultAuthenticatedUserStore(null);
}