def test_reversed():

       r = reversed("hello")

       assert iter(r) is r

       assert r.next() == "o"

       assert r.next() == "l"

       assert r.next() == "l"

       assert r.next() == "e"

       assert r.next() == "h"

       raises(StopIteration, r.next)

       assert list(reversed(list(reversed("hello")))) == ['h','e','l','l','o']

->     raises(TypeError, reversed, reversed("hello"))