Exemple #1
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 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))))
Exemple #2
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 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))))
Exemple #3
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 def test_unextract(self):
     testData = [42, 4190403025, 1303704821] + [random.getrandbits(32) for _ in range(10)]
     for seed in testData:
         for i in range(624):
             mt = mt19937.init(seed)
             rn = mt19937.extract_number(mt, i)
             tm = mt19937.unextract_number(rn, i)
             self.assertEqual(mt[i], tm)
Exemple #4
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    def setUp(self):
        self.seed = random.getrandbits(32)
        self.rounds = 20

        self.rn = np.random.RandomState(self.seed)

        self.mt = [0] * 624
        self.mt = mt19937.init(self.seed)
Exemple #5
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    def setUp(self):
        self.seed = random.getrandbits(32)
        self.rounds = 20

        self.rn = np.random.RandomState(self.seed)

        self.mt = [0] * 624
        self.mt = mt19937.init(self.seed)
Exemple #6
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 def test_unextract(self):
     testData = [42, 4190403025, 1303704821
                 ] + [random.getrandbits(32) for _ in range(10)]
     for seed in testData:
         for i in range(624):
             mt = mt19937.init(seed)
             rn = mt19937.extract_number(mt, i)
             tm = mt19937.unextract_number(rn, i)
             self.assertEqual(mt[i], tm)
Exemple #7
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 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)
Exemple #8
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 def do_test_seed(self, seed):
     mt = mt19937.init(seed)
     # States are the same except first part, which can not be recover
     self.assertListEqual(mt[1:],
                          mt19937.untwist(mt19937.twist(mt))[1:],
                          "test with seed: mt == untwist(twist(mt)), seed: {}".format(seed))  # 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 seed: twist(mt) == twist(untwist(twist(mt))), seed: {}".format(seed))
Exemple #9
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 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)
Exemple #10
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 def do_test_seed(self, seed):
     mt = mt19937.init(seed)
     # States are the same except first part, which can not be recover
     self.assertListEqual(
         mt[1:],
         mt19937.untwist(mt19937.twist(mt))[1:],
         "test with seed: mt == untwist(twist(mt)), seed: {}".format(
             seed))  # 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 seed: twist(mt) == twist(untwist(twist(mt))), seed: {}".
         format(seed))
Exemple #11
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    def test_untwist(self):
        # untwist state, that was created from seed by one run of twist
        for seed in [42, 4190403025, 1303704821] + [random.getrandbits(32) for _ in range(10)]:
            self.do_test_seed(seed)

        # untwist state, that was created from seed by two runs of twist
        for seed in [42, 4190403025, 1303704821] + [random.getrandbits(32) for _ in range(10)]:
            self.do_test_state(mt19937.twist(mt19937.twist(mt19937.init(seed))))

        # untwist randomly generated state
        mt = [0] * 624
        for _ in range(10):
            for i in range(624):
                mt[i] = random.getrandbits(32)
            self.do_test_state(mt)
Exemple #12
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    def test_untwist(self):
        # untwist state, that was created from seed by one run of twist
        for seed in [42, 4190403025, 1303704821
                     ] + [random.getrandbits(32) for _ in range(10)]:
            self.do_test_seed(seed)

        # untwist state, that was created from seed by two runs of twist
        for seed in [42, 4190403025, 1303704821
                     ] + [random.getrandbits(32) for _ in range(10)]:
            self.do_test_state(mt19937.twist(mt19937.twist(
                mt19937.init(seed))))

        # untwist randomly generated state
        mt = [0] * 624
        for _ in range(10):
            for i in range(624):
                mt[i] = random.getrandbits(32)
            self.do_test_state(mt)
Exemple #13
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 def createState(self, seed):
     mt = mt19937.init(seed)
     mt = mt19937.twist(mt)
     return mt
Exemple #14
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    def setUp(self):
        self.rn = np.random.RandomState(42)

        self.mt = [0] * 624
        self.mt = mt19937.init(42)
        self.mt = mt19937.twist(self.mt)
Exemple #15
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 def createState(self, seed):
     mt = mt19937.init(seed)
     mt = mt19937.twist(mt)
     return mt
Exemple #16
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from mt19937 import init, next_int
import time

random = 1853705539
i = int(time.time())
while True:
    init(i)
    if random == next_int():
        print(i)
        break
    i -= 1
Exemple #17
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    def setUp(self):
        self.rn = np.random.RandomState(42)

        self.mt = [0] * 624
        self.mt = mt19937.init(42)
        self.mt = mt19937.twist(self.mt)