Unit Test issues with Entity FrameWork (nullable values) - asp.net

Question

im trying to implement a uniTest for my application so when i tried to get User by ID value in my application it's work fine, but when i tried to do the same scenario from my unit test class i always get nullable result even if the ID value is correct :
Class AccountController : ApiController
{
private UserService _UserService = null;
public AccountController()
{
_UserService = new UserService();
}
[AllowAnonymous]
[Route("test")]
public IHttpActionResult test()
{
var user = _UserService.getUserById(1); //user --> not null;
}
}
but when i tried a UnitTest Script
[TestClass]
public class userServiceTest
{
private UserService _UserService = null;
public userServiceTest()
{
_UserService = new UserService();
}
[TestMethod]
public void checkUserCase1()
{
var user = _UserService.getUserById(1); //user is null value !!!;
}
}
User Service :
public class UserService
{
private GenericRepository<User> _UserRepository = null;
public UserService()
{
_UserRepository = new GenericRepository<User>();
}
public User getUserById(int id)
{
return _UserRepository.Find(x => x.Id == id).FirstOrDefault();
}
}
The Generic Repository
public class GenericRepository<T> : IGenericRepository<T> where T : class
{
private MyDbContext db = null;
private DbSet<T> table = null;
public IEnumerable<T> Find(Expression<Func<T, bool>> predicate)
{
return table.Where(predicate);
}
}
IGeneric :
public interface IGenericRepository<T> where T : class
{
IEnumerable<T> SelectAll();
T SelectByID(object id);
void Insert(T obj);
void Update(T obj);
void Delete(object id);
void Save();
IEnumerable<T> Find(Expression<Func<T, bool>> predicate);
}
My DB Context :
public class MyDbContext : DbContext
{
public MyDbContext()
: base("AuthWebApiDb")
{
Database.SetInitializer<MyDbContext>(new MyDbInitializer());
}
public DbSet<User> Users { get; set; }
}
I have Two Project : One is the simple project, the second is the Unit Test

Answer 1

Check if EF is innstalled in your UnitTest project.
Put the connection string in the app.config file in the unitest project.
Thank's #Stewart_T