DbFixture.cs

using System;
using System.IO;
using Zomg.DAL;

namespace IntegrationTests.Fixtures
{
    public class DbFixture<T> : IDisposable
    {
        private readonly string _connectionString;
        public ApplicationDbContext Context { get; private set; }

        public DbFixture()
        {
            var typeOfT = GetType().UnderlyingSystemType.GenericTypeArguments[0].FullName.Replace(".", "_");
            var path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "AppData");
            AppDomain.CurrentDomain.SetData("DataDirectory", path);
            if (Directory.Exists(path) == false)
                Directory.CreateDirectory(path);
            
            _connectionString = String.Format(@"Data Source=(LocalDb)\v11.0;AttachDbFilename=|DataDirectory|\Zomg-{0}.mdf;Integrated Security=True;MultipleActiveResultSets=True", typeOfT);
            Context = new ApplicationDbContext(_connectionString);
        }

        public void Dispose()
        {
            Context.Database.Connection.Close();
            Context.Database.Delete();
        }
    }
}