Workaround for transactions with Effort for Entity Framework 6

MyDbContext.cs

using System;
using System.Data;
using System.Data.Entity;

namespace MyNamespace
{
    public partial class MyDbContext : DbContext
    {
        public bool IsInMemoryTestContext { get; set; }

        public IDbContextTransaction BeginTransaction()
        {
            if (IsInMemoryTestContext)
                return new FakeDbContextTransaction();
            else
                return new WrappedDbContextTransaction(Database.BeginTransaction());
        }

        public IDbContextTransaction BeginTransaction(IsolationLevel isolationLevel)
        {
            if (IsInMemoryTestContext)
                return new FakeDbContextTransaction();
            else
                return new WrappedDbContextTransaction(Database.BeginTransaction(isolationLevel));
        }
    }

    public interface IDbContextTransaction : IDisposable
    {
        void Commit();

        void Rollback();
    }

    internal class FakeDbContextTransaction : IDbContextTransaction
    {
        public void Commit() { }

        public void Dispose() { }

        public void Rollback() { }
    }

    internal class WrappedDbContextTransaction : IDbContextTransaction
    {
        private readonly DbContextTransaction _dbContextTransaction;

        internal WrappedDbContextTransaction(DbContextTransaction dbContextTransaction)
        {
            _dbContextTransaction = dbContextTransaction;
        }

        public void Commit() => _dbContextTransaction.Commit();

        public void Dispose() => _dbContextTransaction.Dispose();

        public void Rollback() => _dbContextTransaction.Rollback();
    }
}