A dumbed down version of FileApprover, that makes Verifying two arbitrary text files easier.

TheoryApprover.cs

    public class TheoryApprover : IApprovalApprover
    {
        private readonly string approved;
        private readonly string received;
        private ApprovalException failure;

        public TheoryApprover(string approved, string received)
        {
            this.received = received;
            this.approved = approved;
        }

        public bool Approve()
        {
            this.failure = FileApprover.Approve(approved, received);
            return this.failure == null;
        }

        public void CleanUpAfterSucess(IApprovalFailureReporter reporter)
        {
            // TODO: Remove duplication with FileApprover.
            File.Delete(received);
            if (reporter is IApprovalReporterWithCleanUp)
            {
                ((IApprovalReporterWithCleanUp)reporter).CleanUp(approved, received);
            }
        }

        public void Fail()
        {
            throw failure;
        }

        public void ReportFailure(IApprovalFailureReporter reporter)
        {
            reporter.Report(approved, received);
        }
    }