public void SetUp()
{
_dbConnection = ContextHelper.OpenSqliteInMemoryConnection();
_dataContext = ContextHelper.CreateContext(_dbConnection, true);
_userManager = ContextHelper.CreateUserManager(_dataContext);
_roleManager = ContextHelper.CreateRoleManager(_dataContext);
_service = new DefaultDataInitializationService(_userManager, _roleManager);
_dataContext.Database.EnsureCreated();
}