def test_seek_whence_one(self):
r = Reader('')
r._pos = 2
r.seek(5, 1)
assert_equals(7, r._pos)
def test_seek_whence_two(self):
r = Reader('foo bar')
r.seek(-3, 2)
assert_equals(3, r._pos)
def test_seek_whence_zero(self):
r = Reader('', 3)
assert_equals(3, r._pos)
r.seek(5)
assert_equals(8, r._pos)
