class SnapshotTests(TestCase):
def setUp(self):
self.snapshot = Snapshot([5, 1, 2, 3, 4])
def test_small_quantiles_are_the_first_value(self):
self.assertAlmostEqual(self.snapshot.get_value(0.0), 1)
def test_big_quantiles_are_the_last_value(self):
self.assertAlmostEqual(self.snapshot.get_value(1.0), 5)
def test_has_a_median(self):
self.assertAlmostEqual(self.snapshot.get_median(), 3)
def test_percentiles(self):
percentiles = [(4.5, self.snapshot.get_75th_percentile),
(5, self.snapshot.get_98th_percentile),
(5, self.snapshot.get_99th_percentile),
(5, self.snapshot.get_999th_percentile)]
for val, func in percentiles:
self.assertAlmostEqual(func(), val)
def test_has_values(self):
self.assertEquals(self.snapshot.get_values(), [1, 2, 3, 4, 5])
def test_has_a_size(self):
self.assertEquals(self.snapshot.size(), 5)
class SnapshotTests(TestCase):
def setUp(self):
self.snapshot = Snapshot([5, 1, 2, 3, 4])
def test_small_quantiles_are_the_first_value(self):
self.assertAlmostEqual(self.snapshot.get_value(0.0), 1)
def test_big_quantiles_are_the_last_value(self):
self.assertAlmostEqual(self.snapshot.get_value(1.0), 5)
def test_has_a_median(self):
self.assertAlmostEqual(self.snapshot.get_median(), 3)
def test_percentiles(self):
percentiles = [(4.5, self.snapshot.get_75th_percentile),
(5, self.snapshot.get_98th_percentile),
(5, self.snapshot.get_99th_percentile),
(5, self.snapshot.get_999th_percentile)]
for val, func in percentiles:
self.assertAlmostEqual(func(), val)
def test_has_values(self):
self.assertEquals(self.snapshot.get_values(), [1, 2, 3, 4, 5])
def test_has_a_size(self):
self.assertEquals(self.snapshot.size(), 5)
def get_snapshot(self):
"""
Creates a statistical snapshot from the current set of values.
"""
copy = []
for i in xrange(self.size()):
copy.append(self.values[i])
return Snapshot(copy)
def setUp(self):
self.snapshot = Snapshot([5, 1, 2, 3, 4])
def get_snapshot(self):
"""
L{Histogram.get_snapshot}
"""
values = self.histogram.get_snapshot().get_values()
return Snapshot(values)
def get_snapshot(self):
"""
Creates a statistical snapshot from the current set of values.
"""
return Snapshot(self.values.values())
def setUp(self):
self.snapshot = Snapshot([5, 1, 2, 3, 4])
