def do_test_state(self, mt):
# States are the same except first part, which can not be recover
self.assertListEqual(mt[1:],
mt19937.untwist(mt19937.twist(mt))[1:],
"test with state mt == untwist(twist(mt)), mt: {}".format(mt)) # mt[0] is not recoverable
# if you twist untwisted state, also first part must be twisted correctly
self.assertListEqual(mt19937.twist(mt),
mt19937.twist(mt19937.untwist(mt19937.twist(mt))),
"test with state twist(mt) == twist(untwist(twist(mt))), mt: {}".format(mt))
def do_test_state(self, mt):
# States are the same except first part, which can not be recover
self.assertListEqual(
mt[1:],
mt19937.untwist(mt19937.twist(mt))[1:],
"test with state mt == untwist(twist(mt)), mt: {}".format(
mt)) # mt[0] is not recoverable
# if you twist untwisted state, also first part must be twisted correctly
self.assertListEqual(
mt19937.twist(mt),
mt19937.twist(mt19937.untwist(mt19937.twist(mt))),
"test with state twist(mt) == twist(untwist(twist(mt))), mt: {}".
format(mt))
def findSeed(self, pg):
rn = [0] * 624
tm = [0] * 624
for i in range(624):
rn[i] = pg.getNumber()
tm[i] = mt19937.unextract_number(rn[i], i)
mt = mt19937.untwist(tm)
seed = mt19937.uninit(mt)
return seed
def findSeed(self, pg):
rn = [0] * 624
tm = [0] * 624
for i in range(624):
rn[i] = pg.getNumber()
tm[i] = mt19937.unextract_number(rn[i], i)
mt = mt19937.untwist(tm)
seed = mt19937.uninit(mt)
return seed
def test_is_init(self):
testData = [42, 4190403025, 1303704821] + [random.getrandbits(32) for _ in range(10)]
# function init generates initial state
for seed in testData:
self.assertTrue(mt19937.is_init(mt19937.init(seed)))
# function twist generates state, that is not init
for seed in testData:
self.assertFalse(mt19937.is_init(mt19937.twist(mt19937.init(seed))))
# function untwist applied on one time twisted state generates initial state
for seed in testData:
self.assertTrue(mt19937.is_init(mt19937.untwist(mt19937.twist(mt19937.init(seed)))))
# two times applied function twist and untwist is not working because I am loosing information from mt[0]
for seed in testData:
mt = mt19937.init(seed)
mt = mt19937.twist(mt)
mt = mt19937.twist(mt)
mt = mt19937.untwist(mt)
mt = mt19937.untwist(mt)
def test_uninit(self):
testData = [42, 4190403025, 1303704821] + [random.getrandbits(32) for _ in range(10)]
for seed in testData:
# extract seed from initial state
self.assertEqual(mt19937.uninit(mt19937.init(seed)), seed)
# perform twist, then untwist and then extract seed
self.assertEqual(mt19937.uninit(mt19937.untwist(mt19937.twist(mt19937.init(seed)))), seed)
# if state is not initial None is returned
self.assertIsNone(mt19937.uninit(mt19937.twist(mt19937.init(seed))))
def test_uninit(self):
testData = [42, 4190403025, 1303704821
] + [random.getrandbits(32) for _ in range(10)]
for seed in testData:
# extract seed from initial state
self.assertEqual(mt19937.uninit(mt19937.init(seed)), seed)
# perform twist, then untwist and then extract seed
self.assertEqual(
mt19937.uninit(
mt19937.untwist(mt19937.twist(mt19937.init(seed)))), seed)
# if state is not initial None is returned
self.assertIsNone(mt19937.uninit(mt19937.twist(
mt19937.init(seed))))
def test_is_init(self):
testData = [42, 4190403025, 1303704821
] + [random.getrandbits(32) for _ in range(10)]
# function init generates initial state
for seed in testData:
self.assertTrue(mt19937.is_init(mt19937.init(seed)))
# function twist generates state, that is not init
for seed in testData:
self.assertFalse(mt19937.is_init(mt19937.twist(
mt19937.init(seed))))
# function untwist applied on one time twisted state generates initial state
for seed in testData:
self.assertTrue(
mt19937.is_init(
mt19937.untwist(mt19937.twist(mt19937.init(seed)))))
# two times applied function twist and untwist is not working because I am loosing information from mt[0]
for seed in testData:
mt = mt19937.init(seed)
mt = mt19937.twist(mt)
mt = mt19937.twist(mt)
mt = mt19937.untwist(mt)
mt = mt19937.untwist(mt)
