An alternative to NotImplementedException

It happens from time to time that I forget to implement some code where I’m just throwing a NotImplementedException. Being forgetful I have a habit of coming up with stuff that will help me not to forget. I think my “MustBeImplementedException” is quite useful, it will break the build if the build is not DEBUG.

#if DEBUG

namespace FakeItEasy
{
    using System;
    using System.Diagnostics.CodeAnalysis;

    /// <summary>
    /// An exception that can be thrown before a member has been
    /// implemented, will cause the build to fail when not built in 
    /// debug mode.
    /// </summary>
    [Serializable]
    [SuppressMessage("Microsoft.Design", "CA1032:ImplementStandardExceptionConstructors", Justification = "Never used in production.")]
    public class MustBeImplementedException
        : Exception
    {
    }
}

#endif