def test():
'''Test the basic workings of `OrderedSet`.'''
ordered_set = OrderedSet(range(4))
assert list(ordered_set) == list(range(4))
assert len(ordered_set) == 4
assert 1 in ordered_set
assert 3 in ordered_set
assert 7 not in ordered_set
ordered_set.add(8)
assert list(ordered_set)[-1] == 8
ordered_set.discard(2)
assert 2 not in ordered_set
assert list(reversed(ordered_set)) == [8, 3, 1, 0]
assert ordered_set.pop() == 8
assert ordered_set.pop(last=False) == 0
def test():
'''Test the basic workings of `OrderedSet`.'''
ordered_set = OrderedSet(xrange(4))
assert list(ordered_set) == list(range(4))
assert len(ordered_set) == 4
assert 1 in ordered_set
assert 3 in ordered_set
assert 7 not in ordered_set
ordered_set.add(8)
assert list(ordered_set)[-1] == 8
ordered_set.discard(2)
assert 2 not in ordered_set
assert list(reversed(ordered_set)) == [8, 3, 1, 0]
assert ordered_set.pop() == 8
assert ordered_set.pop(last=False) == 0
