def test_hello_diff_msg_unknown(self):
   self.assertEqual(hello_customized("bob"), False)
 def test_hello_diff_msg(self):
   names = ("tim", "rob", "stef")
   greetings = ("hi, ", "bye, ", "yo, ")
   for i,n in enumerate(names):
     gr = greetings[i] + n
     self.assertEqual(hello_customized(n), gr)