from __future__ import absolute_import, division, print_function
from scitbx.stl import set
try:
  from six.moves import cPickle as pickle
except ImportError:
  import pickle

def exercise_unsigned():
  s = set.unsigned()
  assert s.size() == 0
  assert len(s) == 0
  assert not 1 in s
  s.insert(1)
  assert s.size() == 1
  assert len(s) == 1
  assert 1 in s
  s.append(1)
  assert s.size() == 1
  s.insert(3)
  assert s.size() == 2
  assert s.erase(2) == 0
  assert s.size() == 2
  assert s.erase(1) == 1
  assert s.size() == 1
  s.clear()
  assert s.size() == 0
  s = set.unsigned([4,5,8,7,5,3])
  assert s.size() == 5
  assert list(s) == [3,4,5,7,8]
  s.insert(set.unsigned(s))
  assert s.size() == 5
  s.extend([0,4,6,11])
  assert list(s) == [0,3,4,5,6,7,8,11]
  d = pickle.dumps(s)
  l = pickle.loads(d)
  assert list(l) == list(s)

def exercise_stl_string():
  s = set.stl_string(["a", "b", "c"])
  d = pickle.dumps(s)
  l = pickle.loads(d)
  assert list(l) == list(s)

def exercise():
  exercise_unsigned()
  exercise_stl_string()
  print("OK")

if (__name__ == "__main__"):
  exercise()