def testintersection_update(self):
c = Bitset(self.b2)
c.intersection_update(self.b1)
self.assertEqual(c, self.b2.intersection(self.b1))
c = Bitset(self.b1)
c.intersection_update(self.b2)
self.assertEqual(c, self.b1.intersection(self.b2))
c = Bitset(self.b1)
c.intersection_update(self.b4)
self.assertEqual(c, self.b1.intersection(self.b4))
class Hashedbitset():
def __init__(self, size):
self._value = Bitset(size)
self._size = size
self._hasher = Hasher()
def Add(self, item):
self._value.Add(self._hasher.hash(item, 1)[0])
def Size(self):
return self._value.Size()
def Contains(self, item):
n = self._hasher.hash(item, 1)[0]
return self._value.Contains(n)
def generate_board(n: int, m: int, prob: float = 0.5):
"""
Generates a random matrix of NxM cells where every cell has a 50% probablility of being marked or not.
"""
b = Bitset(n, m)
for i in range(n):
for j in range(m):
if rd.random() <= prob:
b[i, j] = True
return b
class Bloomfilter():
def __init__(self, size, keys):
self._value = Bitset(size)
self._size = size
self._keys = keys
self._hasher = Hasher()
def Add(self, item):
[self._value.Add(i) for i in self._hasher.hash(item, self._keys)]
def Size(self):
return self._value.Size()
def Contains(self, item):
n = self._hasher.hash(item, self._keys)
for i in n:
if not self._value.Contains(i):
return False
return True
def setUp(self):
self.l1 = [1,2,3,4,8,9,32]
self.b1 = Bitset(self.l1)
self.b2 = Bitset([2,3,4,6,9])
self.b3 = Bitset([2,3,4,32])
self.b4 = Bitset([5,7,15])
self.b5 = Bitset(xrange(1, 33))
self.b6 = Bitset()
def testupdate(self):
c = Bitset(self.b1)
c.update(self.b1)
self.assertEqual(c, self.b1.union(self.b1))
c = Bitset(self.b2)
c.update(self.b3)
self.assertEqual(c, self.b2.union(self.b3))
def generate_board(self):
game = self.game
solution = self.lists
board = Bitset(game.rows, game.columns)
for i, line in enumerate(solution):
game_line = game.lists[0][i]
sol_line = solution[i]
idx = 0
for k in range(len(sol_line) - 1):
idx += sol_line[k]
for j in range(game_line[k]):
board[i, idx] = True
idx += 1
self._board = board
self.board_updated = True
return board
class BloomFilter:
def hash(self, string, prime):
h = 0
for c in string:
h = (prime * h + ord(c)) & 0xFFFFFFFF
bitset_length = (((h + 0x80000000) & 0xFFFFFFFF) - 0x80000000)
return bitset_length % self.bitset.length
def hashFunctions(self, primes):
result = list()
for p in primes:
print "lambda x: self.hash(x, ", p, ")"
result.append(lambda x: self.hash(x, p))
return result
def __init__(self, size, hashCount=0):
self.bitset = Bitset(0, size)
self.hashs = self.hashFunctions(PRIMES[0:hashCount or len(PRIMES)])
pass
def __str__(self):
return "BloomFilter[size={} value={}]".format(self.bitset.length, self.bitset.__str__())
def __contains__(self, item):
contains = True
for h in self.hashs:
contains = contains & self.bitset[h(item)]
if not contains:
break
return contains
def add(self, item):
for h in self.hashs:
self.bitset[h(item)] = True
def remove(self, item):
for h in self.hashs:
self.bitset[h(item)] = False
def __init__(self, size, hashCount=0):
self.bitset = Bitset(0, size)
self.hashs = self.hashFunctions(PRIMES[0:hashCount or len(PRIMES)])
pass
def __init__(self, size, keys):
self._value = Bitset(size)
self._size = size
self._keys = keys
self._hasher = Hasher()
class TestBitset(unittest.TestCase):
def setUp(self):
self.l1 = [1,2,3,4,8,9,32]
self.b1 = Bitset(self.l1)
self.b2 = Bitset([2,3,4,6,9])
self.b3 = Bitset([2,3,4,32])
self.b4 = Bitset([5,7,15])
self.b5 = Bitset(xrange(1, 33))
self.b6 = Bitset()
def testinit(self):
self.assertEqual(Bitset([1,2,3,4]), Bitset([1,2,3,4]))
self.assertEqual(Bitset(set([1,2,3,4])), Bitset([1,2,3,4]))
self.assertEqual(Bitset({1: 10, 2: 20, 3: 30, 4: 40}), Bitset([1,2,3,4]))
self.assertRaises(TypeError, lambda: Bitset(1))
self.assertRaises(TypeError, lambda: Bitset([33]))
self.assertRaises(TypeError, lambda: Bitset([0]))
self.assertRaises(TypeError, lambda: Bitset(["a"]))
self.assertRaises(TypeError, lambda: Bitset("test"))
def testin(self):
self.assertTrue(2 in self.b2)
self.assertTrue(1 not in self.b2)
self.assertFalse(1 in self.b2)
self.assertFalse(2 not in self.b2)
for x in self.l1:
self.assertTrue(x in self.b1)
def testiter(self):
self.assertEqual(list(self.b1), self.l1)
def testclear(self):
self.assertNotEqual(self.b1, Bitset())
self.b1.clear()
self.assertEqual(self.b1, Bitset())
self.assertEqual(self.b6, Bitset())
self.b6.clear()
self.assertEqual(self.b6, Bitset())
def testremove(self):
self.b1.remove(32)
self.assertEqual(self.b1, Bitset([1, 2, 3, 4, 8, 9]))
self.assertRaises(KeyError, lambda: self.b1.remove(31))
def testadd(self):
self.b1.add(31)
self.assertEqual(self.b1, Bitset([1, 2, 3, 4, 8, 9, 31, 32]))
self.b6.add(6)
self.assertEqual(self.b6, Bitset([6]))
self.b4.add(5)
self.assertEqual(self.b4, Bitset([5, 7, 15]))
self.assertEqual(self.b4.add(1), None)
self.assertRaises(TypeError, lambda: self.b4.add("test"))
def testdiscard(self):
self.b1.discard(31)
self.assertEqual(self.b1, Bitset(self.l1))
self.b1.discard(32)
self.assertEqual(self.b1, Bitset([1, 2, 3, 4, 8, 9]))
def testpop(self):
for i in range(len(self.l1)):
self.assertTrue(self.b1.pop() in self.l1)
for i in xrange(1, 33):
v = self.b5.pop()
self.assertTrue(0 < v)
self.assertTrue(v < 33)
def testintersection(self):
self.assertEqual(self.b2.intersection(self.b1), self.b1.intersection(self.b2))
self.assertEqual(self.b1.intersection(self.b2), Bitset([2,3,4,9]))
self.assertEqual(self.b1.intersection(self.b4), Bitset())
def testunion(self):
self.assertEqual(self.b1.union(self.b1), self.b1)
self.assertNotEqual(self.b1.union(self.b1), self.b2)
self.assertEqual(self.b2.union(self.b3), Bitset([2, 3, 4, 6, 9, 32]))
def testdifference(self):
self.assertEqual(self.b1.difference(self.b2), Bitset([1, 8, 32]))
def testsymmetric_difference(self):
self.assertEqual(self.b6.symmetric_difference(self.b6), Bitset())
self.assertEqual(self.b1.symmetric_difference(self.b1), Bitset())
self.assertEqual(self.b1.symmetric_difference(self.b2), Bitset([1, 6, 8, 32]))
def testisdisjoint(self):
self.assertTrue(self.b1.isdisjoint(self.b4))
self.assertFalse(self.b1.isdisjoint(self.b2))
def testissubset(self):
self.assertTrue(self.b3.issubset(self.b1))
self.assertFalse(self.b2.issubset(self.b1))
def testissuperset(self):
self.assertTrue(self.b1.issuperset(self.b3))
self.assertFalse(self.b1.issuperset(self.b2))
def testpickle(self):
for o in (self.b1, self.b2, self.b3, self.b4, self.b5, self.b6):
for protocol in (None, 1, 2):
self.assertEqual(pickle.loads(pickle.dumps(o, protocol=protocol)), o)
def testlen(self):
self.assertEqual(len(self.b1), len(self.l1))
self.assertEqual(len(self.b2), len(list(self.b2)))
def testintersection_update(self):
c = Bitset(self.b2)
c.intersection_update(self.b1)
self.assertEqual(c, self.b2.intersection(self.b1))
c = Bitset(self.b1)
c.intersection_update(self.b2)
self.assertEqual(c, self.b1.intersection(self.b2))
c = Bitset(self.b1)
c.intersection_update(self.b4)
self.assertEqual(c, self.b1.intersection(self.b4))
def testupdate(self):
c = Bitset(self.b1)
c.update(self.b1)
self.assertEqual(c, self.b1.union(self.b1))
c = Bitset(self.b2)
c.update(self.b3)
self.assertEqual(c, self.b2.union(self.b3))
def testdifference_update(self):
c = Bitset(self.b1)
c.difference_update(self.b2)
self.assertEqual(c, self.b1.difference(self.b2))
def testsymmetric_difference_update(self):
c = Bitset(self.b1)
c.symmetric_difference_update(self.b2)
self.assertEqual(c, self.b1.symmetric_difference(self.b2))
def testeq(self):
self.assertTrue(self.b1 == Bitset(self.b1))
self.assertFalse(self.b1 == set(self.b1))
self.assertFalse(self.b1 == self.b2)
def testne(self):
self.assertFalse(self.b1 != Bitset(self.b1))
self.assertTrue(self.b1 != set(self.b1))
self.assertTrue(self.b1 != self.b2)
def testlt(self):
self.assertTrue(self.b3 < self.b1)
self.assertFalse(self.b2 < self.b1)
self.assertFalse(self.b2 < self.b2)
self.assertRaises(TypeError, lambda: self.b3 < set(self.b1))
def testlte(self):
self.assertTrue(self.b3 <= self.b1)
self.assertFalse(self.b2 <= self.b1)
self.assertTrue(self.b2 <= self.b2)
self.assertRaises(TypeError, lambda: self.b3 <= set(self.b1))
def testgt(self):
self.assertTrue(self.b1 > self.b3)
self.assertFalse(self.b1 > self.b2)
self.assertFalse(self.b2 > self.b2)
self.assertRaises(TypeError, lambda: self.b1 > set(self.b3))
def testgte(self):
self.assertTrue(self.b1 >= self.b3)
self.assertFalse(self.b1 >= self.b2)
self.assertTrue(self.b2 >= self.b2)
self.assertRaises(TypeError, lambda: self.b1 >= set(self.b3))
def testand(self):
self.assertEqual(self.b1 & self.b2, self.b1.intersection(self.b2))
self.assertEqual(self.b1 & self.b3, self.b1.intersection(self.b3))
self.assertEqual(self.b4 & self.b3, self.b4.intersection(self.b3))
self.assertEqual(self.b5 & self.b6, self.b5.intersection(self.b6))
self.assertRaises(TypeError, lambda: self.b1 & set([1]))
def testor(self):
self.assertEqual(self.b1 | self.b2, self.b1.union(self.b2))
self.assertEqual(self.b1 | self.b3, self.b1.union(self.b3))
self.assertEqual(self.b4 | self.b3, self.b4.union(self.b3))
self.assertEqual(self.b5 | self.b6, self.b5.union(self.b6))
self.assertRaises(TypeError, lambda: self.b1 | set([1]))
def testxor(self):
self.assertEqual(self.b1 ^ self.b2, self.b1.symmetric_difference(self.b2))
self.assertEqual(self.b1 ^ self.b3, self.b1.symmetric_difference(self.b3))
self.assertEqual(self.b4 ^ self.b3, self.b4.symmetric_difference(self.b3))
self.assertEqual(self.b5 ^ self.b6, self.b5.symmetric_difference(self.b6))
self.assertRaises(TypeError, lambda: self.b1 ^ set([1]))
def testsub(self):
self.assertEqual(self.b1 - self.b2, self.b1.difference(self.b2))
self.assertEqual(self.b1 - self.b3, self.b1.difference(self.b3))
self.assertEqual(self.b4 - self.b3, self.b4.difference(self.b3))
self.assertEqual(self.b5 - self.b6, self.b5.difference(self.b6))
self.assertRaises(TypeError, lambda: self.b1 - set([1]))
def testiand(self):
c = Bitset(self.b1)
c &= Bitset(self.b2)
self.assertEqual(c, self.b1 & self.b2)
def _testiand():
c = Bitset(self.b1)
c &= set([1])
self.assertRaises(TypeError, _testiand)
def testior(self):
c = Bitset(self.b1)
c |= Bitset(self.b2)
self.assertEqual(c, self.b1 | self.b2)
def _testior():
c = Bitset(self.b1)
c |= set([1])
self.assertRaises(TypeError, _testior)
def testixor(self):
c = Bitset(self.b1)
c ^= Bitset(self.b2)
self.assertEqual(c, self.b1 ^ self.b2)
def _testixor():
c = Bitset(self.b1)
c ^= set([1])
self.assertRaises(TypeError, _testixor)
def testisub(self):
c = Bitset(self.b1)
c -= Bitset(self.b2)
self.assertEqual(c, self.b1 - self.b2)
def _testisub():
c = Bitset(self.b1)
c -= set([1])
self.assertRaises(TypeError, _testisub)
def testsymmetric_difference_update(self):
c = Bitset(self.b1)
c.symmetric_difference_update(self.b2)
self.assertEqual(c, self.b1.symmetric_difference(self.b2))
def testdifference_update(self):
c = Bitset(self.b1)
c.difference_update(self.b2)
self.assertEqual(c, self.b1.difference(self.b2))
