def test_sort(self):
p = PersistentList(x for x in interval(10))
p.reverse()
assert p == list(reversed(interval(10)))
p = sorted(p)
assert p == interval(10)
def sort(self):
p = PersistentList(x for x in interval(10))
p.reverse()
assert p == list(reversed(interval(10)))
p = sorted(p)
assert p == interval(10)
