Boilerplate for an assembly initialization class to map the datadirectory and reset the local db for unit testing in C# using Entity Framework

Initialize.cs

 [TestClass]
    public class Initalize
    {
        [AssemblyInitialize]
        public static void InitializeDbContext(TestContext context)
        {
            // Connection string in app.config should use LocalDb, EG:
            // <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\v11.0;AttachDbFilename=|DataDirectory|\DefaultConnection.mdf;Initial Catalog=DefaultConnection;Integrated Security=True" providerName="System.Data.SqlClient" />
            AppDomain.CurrentDomain.SetData("DataDirectory", context.TestDeploymentDir);
            Database.SetInitializer(new DropCreateDatabaseAlways<ApplicationDbContext>());

            // Load test data
        }
    }