public void Update()
{
var id = repo.Insert("jora".AsUser());
repo.GetRoles(id).Count().ShouldEqual(2);
var user = repo.Get(id);
user.Roles = new[] { new Role()
{
Id = 3
} };
repo.ChangeRoles(user);
repo.GetRoles(id).Count().ShouldEqual(1);
}