def test_init(self):
s = HyperLogLog(0.05)
s.upgrade()
self.assertEqual(s.p, 9)
self.assertEqual(s.alpha, 0.7197831133217303)
self.assertEqual(s.m, 512)
self.assertEqual(len(s.M), 512)
def test_pickle(self):
a = HyperLogLog(0.05)
for x in range(100):
a.add(str(x))
a.upgrade()
b = pickle.loads(pickle.dumps(a))
numpy.testing.assert_array_equal(a.M, b.M)
self.assertEqual(a.alpha, b.alpha)
self.assertEqual(a.p, b.p)
self.assertEqual(a.m, b.m)
self.assertEqual(len(a), len(b))
def test_add(self):
s = HyperLogLog(0.05)
for i in range(10):
s.add(str(i))
s.upgrade()
M = [(i, v) for i, v in enumerate(s.M) if v > 0]
numpy.testing.assert_array_equal(
M, [(1, 1), (41, 1), (44, 1), (76, 3), (103, 4), (182, 1), (442, 2), (464, 5), (497, 1), (506, 1)])
