how can i create unit test for this code?

Question

i have a task and i must finish it .. still to me unit test please any one can help me to build unit test for this short code ?

public ActionResult Create([Bind(Include = "ID,NAME,DESCRIPTION")] TODO tODO , TODO_MIRROR tODO_MIRROR)

{

if (ModelState.IsValid)

{

db.TODOS.Add(tODO);

db.TODO_MIRRORS.Add(tODO_MIRROR);

db.SaveChanges();

return RedirectToAction("Index");

}

return View(tODO);

}