def test__a_sample_of_100_from_1000(self):
hist = Histogram(100, 0.99)
for i in range(1000):
hist.add(i)
self.assertEqual(1000, hist.get_count())
self.assertEqual(100, hist.sample.get_size())
snapshot = hist.get_snapshot()
self.assertEqual(100, snapshot.get_size())
for i in snapshot.values:
self.assertTrue(0 <= i and i <= 1000)
self.assertEqual(999, hist.get_max())
self.assertEqual(0, hist.get_min())
self.assertEqual(499.5, hist.get_mean())
self.assertAlmostEqual(83416.6666, hist.get_var(), delta=0.0001)
def test__a_sample_of_100_from_1000(self):
hist = Histogram(100, 0.99)
for i in range(1000):
hist.add(i)
self.assertEqual(1000, hist.get_count())
self.assertEqual(100, hist.sample.get_size())
snapshot = hist.get_snapshot()
self.assertEqual(100, snapshot.get_size())
for i in snapshot.values:
self.assertTrue(0 <= i and i <= 1000)
self.assertEqual(999, hist.get_max())
self.assertEqual(0, hist.get_min())
self.assertEqual(499.5, hist.get_mean())
self.assertAlmostEqual(83416.6666, hist.get_var(), delta=0.0001)
