A better alternative than using the ExpectedException attribute for catching exceptions in C#.

AssertExtension.cs

using System;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace TestUtilities
{
    public static class AssertExtension
    {
        public static T Throws<T>(Action expressionUnderTest, string exceptionMessage = "Expected exception has not been thrown by target of invocation.") where T : Exception
        {
            try
            {
                expressionUnderTest();
            }
            catch (T exception)
            {
                return exception;
            }

            Assert.Fail(exceptionMessage);
            return null;
        }
    }
}