This is an example of the SeedData Class that I am using with SpecsFor.MVC.

Working Seed Data Config.

using System;
using System.Data.Entity;
using Microsoft.AspNet.Identity;
using SpecsFor.Mvc;
using SpecsForDemo.Web.Models;

namespace SpecsForDemo.IntegrationSpecs
{
    public class SeedDataConfig : SpecsForMvcConfig
    {
        public SeedDataConfig()
        {
            BeforeEachTest(() =>
            {
                Database.SetInitializer(new TestDbInitializer());
                ApplicationDbContext context = ApplicationDbContext.Create();
                context.Database.Initialize(true);
            });
        }

        public class TestDbInitializer : DropCreateDatabaseAlways<ApplicationDbContext>
        {
            protected override void Seed(ApplicationDbContext context)
            {
                var user = new ApplicationUser
                {
                    UserName = "real@user.com",
                    Email = "real@user.com",
                    LockoutEnabled = true,
                    SecurityStamp = Guid.NewGuid().ToString(),
                    PasswordHash = new PasswordHasher().HashPassword("P@ssw0rd1")
                };

                context.Users.Add(user);
                context.SaveChanges();
            }
        }
    }
}