def test_random_value(self):
"""
Verify that hashlib.sha2 returns the same digest for a few
quasi-random values.
"""
rng = SimpleRNG()
for _ in range(4):
count = 16 + rng.next_int16(48)
data = rng.some_bytes(count)
my_hex = XLSHA3(data).hexdigest()
expected = hashlib.sha3_256(data).hexdigest()
self.assertEqual(my_hex, expected)
def test_random_value(self):
"""
Verify that pyblake2.blake2b and hashlib.blake2b return the same
digest for a few quasi-random values. This test only makes sense
for more recent versions of hashlib which support blake2.
"""
if sys.version_info >= (3, 6):
rng = SimpleRNG()
for _ in range(4):
count = 16 + rng.next_int16(48)
data = rng.some_bytes(count)
my_hex = XLBLAKE2B_256(data).hexdigest()
expected = pyblake2.blake2b(data, digest_size=32).hexdigest()
self.assertEqual(my_hex, expected)
def rand_test(self, count=1000):
""" Repeath a suite of tests N times. """
rng = SimpleRNG(time.time())
self.do_test(count, rng.random, ())
self.do_test(count, rng.normalvariate, (0.0, 1.0))
self.do_test(count, rng.lognormvariate, (0.0, 1.0))
self.do_test(count, rng.vonmisesvariate, (0.0, 1.0))
self.do_test(count, rng.gammavariate, (0.01, 1.0))
self.do_test(count, rng.gammavariate, (0.1, 1.0))
self.do_test(count, rng.gammavariate, (0.1, 2.0))
self.do_test(count, rng.gammavariate, (0.5, 1.0))
self.do_test(count, rng.gammavariate, (0.9, 1.0))
self.do_test(count, rng.gammavariate, (1.0, 1.0))
self.do_test(count, rng.gammavariate, (2.0, 1.0))
self.do_test(count, rng.gammavariate, (20.0, 1.0))
self.do_test(count, rng.gammavariate, (200.0, 1.0))
self.do_test(count, rng.gauss, (0.0, 1.0))
self.do_test(count, rng.betavariate, (3.0, 3.0))
self.do_test(count, rng.triangular, (0.0, 1.0, 1.0 / 3.0))
def setUp(self):
self.rng = SimpleRNG()
#!/usr/bin/env python3
# xlcrypto_py/test_nibble_counters.py
""" Test nibble counters used in CountingBlooms. """
import time
import unittest
# from hashlib import sha1, sha256 as sha2
from rnglib import SimpleRNG
from xlcrypto import XLFilterError
from xlcrypto.filters import BloomSHA, NibbleCounters
RNG = SimpleRNG(time.time())
class TestNibbleCounters(unittest.TestCase):
"""
Tests the counters associated with Bloom filters for sets whose members
are 20- or 32-byte SHA digests.
"""
def do_nibble_test_bit(self, counters, filter_bit):
""" Count up through all possible values and beyond. """
value = 0
# DEBUG
# print("do_nibble_test_bit: filter_bit %6d" % filter_bit)
# END
for i in range(18):
# DEBUG
# print(" up %2d" % i)
def setUp(self):
self.rng = SimpleRNG(time.time())
