def test_empty(self):
s = StatValue.from_list([])
self.assertEqual(s.sum, 0)
self.assertEqual(s.avg, None)
self.assertEqual(s.max, None)
self.assertEqual(s.min, None)
self.assertEqual(s.median, None)
self.assertEqual(s.stdev, None)
def test_empty(self):
s = StatValue.from_list([])
self.assertEqual(s.sum, 0)
self.assertEqual(s.avg, None)
self.assertEqual(s.max, None)
self.assertEqual(s.min, None)
self.assertEqual(s.median, None)
self.assertEqual(s.stdev, None)
def test_single_value(self):
v = Decimal(1.23)
s = StatValue.from_list([v])
self.assertAlmostEqual(s.sum, v)
self.assertAlmostEqual(s.avg, v)
self.assertEqual(s.max, v)
self.assertEqual(s.min, v)
self.assertEqual(s.median, v)
self.assertAlmostEqual(s.stdev, Decimal(0))
def test_single_value(self):
v = Decimal(1.23)
s = StatValue.from_list([v])
self.assertAlmostEqual(s.sum, v)
self.assertAlmostEqual(s.avg, v)
self.assertEqual(s.max, v)
self.assertEqual(s.min, v)
self.assertEqual(s.median, v)
self.assertAlmostEqual(s.stdev, Decimal(0))
def test_one_inf(self):
inf = Decimal(float("inf"))
v = Decimal(0.123)
s = StatValue.from_list([inf])
self.assertEqual(s.sum, inf, "Not Inf, but " + str(s.sum))
self.assertEqual(s.avg, inf, "Not Inf, but " + str(s.avg))
self.assertEqual(s.max, inf, "Not Inf, but " + str(s.max))
self.assertEqual(s.min, inf, "Not Inf, but " + str(s.min))
self.assertEqual(s.median, inf, "Not Inf, but " + str(s.median))
self.assertEqual(s.stdev, inf, "Not Inf, but " + str(s.stdev))
s = StatValue.from_list([inf, v])
self.assertEqual(s.sum, inf, "Not Inf, but " + str(s.sum))
self.assertEqual(s.avg, inf, "Not NaN, but " + str(s.avg))
self.assertEqual(s.max, inf, "Not NaN, but " + str(s.max))
self.assertEqual(s.min, v, "Not NaN, but " + str(s.min))
self.assertEqual(s.median, inf, "Not NaN, but " + str(s.median))
self.assertEqual(s.stdev, inf, "Not NaN, but " + str(s.stdev))
def test_two_values(self):
v1 = Decimal(1.23)
v2 = Decimal(4.56)
for t in [[v1,v2], [v2,v1]]:
s = StatValue.from_list(t)
self.assertEqual(s.sum, v1+v2)
self.assertAlmostEqual(s.avg, (v1+v2)/Decimal(2))
self.assertEqual(s.max, v2)
self.assertEqual(s.min, v1)
self.assertAlmostEqual(s.median, (v1+v2)/Decimal(2))
self.assertAlmostEqual(s.stdev, Decimal(1.665))
def test_two_values(self):
v1 = Decimal(1.23)
v2 = Decimal(4.56)
for t in [[v1, v2], [v2, v1]]:
s = StatValue.from_list(t)
self.assertEqual(s.sum, v1 + v2)
self.assertAlmostEqual(s.avg, (v1 + v2) / Decimal(2))
self.assertEqual(s.max, v2)
self.assertEqual(s.min, v1)
self.assertAlmostEqual(s.median, (v1 + v2) / Decimal(2))
self.assertAlmostEqual(s.stdev, Decimal(1.665))
def test_one_negative_inf(self):
ninf = Decimal(float("-inf"))
inf = Decimal(float("inf"))
v = Decimal(0.123)
s = StatValue.from_list([ninf])
self.assertEqual(s.sum, ninf, "Not -Inf, but " + str(s.sum))
self.assertEqual(s.avg, ninf, "Not -Inf, but " + str(s.avg))
self.assertEqual(s.max, ninf, "Not -Inf, but " + str(s.max))
self.assertEqual(s.min, ninf, "Not -Inf, but " + str(s.min))
self.assertEqual(s.median, ninf, "Not -Inf, but " + str(s.median))
self.assertEqual(s.stdev, inf, "Not Inf, but " + str(s.stdev))
s = StatValue.from_list([ninf, v])
self.assertEqual(s.sum, ninf, "Not -Inf, but " + str(s.sum))
self.assertEqual(s.avg, ninf, "Not -Inf, but " + str(s.avg))
self.assertEqual(s.max, v, "Not 0.123, but " + str(s.max))
self.assertEqual(s.min, ninf, "Not -Inf, but " + str(s.min))
self.assertEqual(s.median, ninf, "Not -Inf, but " + str(s.median))
self.assertEqual(s.stdev, inf, "Not Inf, but " + str(s.stdev))
def test_nan(self):
import math
nan = Decimal(float('nan'))
v = Decimal(0.123)
s = StatValue.from_list([nan])
self.assertTrue(math.isnan(s.sum), "Not NaN, but " + str(s.sum))
self.assertTrue(math.isnan(s.avg), "Not NaN, but " + str(s.avg))
self.assertTrue(math.isnan(s.max), "Not NaN, but " + str(s.max))
self.assertTrue(math.isnan(s.min), "Not NaN, but " + str(s.min))
self.assertTrue(math.isnan(s.median), "Not NaN, but " + str(s.median))
self.assertTrue(math.isnan(s.stdev), "Not NaN, but " + str(s.stdev))
s = StatValue.from_list([nan, v])
self.assertTrue(math.isnan(s.sum), "Not NaN, but " + str(s.sum))
self.assertTrue(math.isnan(s.avg), "Not NaN, but " + str(s.avg))
self.assertTrue(math.isnan(s.max), "Not NaN, but " + str(s.max))
self.assertTrue(math.isnan(s.min), "Not NaN, but " + str(s.min))
self.assertTrue(math.isnan(s.median), "Not NaN, but " + str(s.median))
self.assertTrue(math.isnan(s.stdev), "Not NaN, but " + str(s.stdev))
def test_three_values(self):
v1 = Decimal(0.123)
v2 = Decimal(4.56)
v3 = Decimal(789)
for t in [[v1,v2,v3], [v3,v2,v1], [v2,v1,v3]]:
s = StatValue.from_list(t)
self.assertEqual(s.sum, v1+v2+v3)
self.assertAlmostEqual(s.avg, (v1+v2+v3)/Decimal(3))
self.assertEqual(s.max, v3)
self.assertEqual(s.min, v1)
self.assertEqual(s.median, v2)
self.assertAlmostEqual(s.stdev, Decimal(370.83879721))
def test_three_values(self):
v1 = Decimal(0.123)
v2 = Decimal(4.56)
v3 = Decimal(789)
for t in [[v1, v2, v3], [v3, v2, v1], [v2, v1, v3]]:
s = StatValue.from_list(t)
self.assertEqual(s.sum, v1 + v2 + v3)
self.assertAlmostEqual(s.avg, (v1 + v2 + v3) / Decimal(3))
self.assertEqual(s.max, v3)
self.assertEqual(s.min, v1)
self.assertEqual(s.median, v2)
self.assertAlmostEqual(s.stdev, Decimal(370.83879721))
def test_multiple_positive_inf(self):
inf = Decimal(float("inf"))
v = Decimal(0.123)
# Equal number of infs
s = StatValue.from_list([inf, inf, v])
self.assertEqual(s.sum, inf, "Not Inf, but " + str(s.sum))
self.assertEqual(s.avg, inf, "Not Inf, but " + str(s.avg))
self.assertEqual(s.max, inf, "Not Inf, but " + str(s.max))
self.assertEqual(s.min, v, "Not 0.123, but " + str(s.min))
self.assertEqual(s.median, inf, "Not Inf, but " + str(s.median))
self.assertEqual(s.stdev, inf, "Not Inf, but " + str(s.stdev))
# Unequal number of infs
s = StatValue.from_list([inf, inf, inf, v])
self.assertEqual(s.sum, inf, "Not Inf, but " + str(s.sum))
self.assertEqual(s.avg, inf, "Not Inf, but " + str(s.avg))
self.assertEqual(s.max, inf, "Not Inf, but " + str(s.max))
self.assertEqual(s.min, v, "Not 0.123, but " + str(s.min))
self.assertEqual(s.median, inf, "Not Inf, but " + str(s.median))
self.assertEqual(s.stdev, inf, "Not Inf, but " + str(s.stdev))
def test_multiple_positive_and_negative_inf(self):
import math
inf = Decimal(float('inf'))
ninf = Decimal(float('-inf'))
v = Decimal(0.123)
s = StatValue.from_list([inf, ninf, v])
self.assertTrue(math.isnan(s.sum), "Not NaN, but " + str(s.sum))
self.assertTrue(math.isnan(s.avg), "Not NaN, but " + str(s.avg))
self.assertEqual(s.max, inf, "Not Inf, but " + str(s.max))
self.assertEqual(s.min, ninf, "Not -Inf, but " + str(s.min))
self.assertEqual(s.median, v, "Not 0.123, but " + str(s.median))
self.assertTrue(math.isnan(s.stdev), "Not NaN, but " + str(s.stdev))
def test_multiple_negative_inf(self):
ninf = Decimal(float('-inf'))
inf = Decimal(float('inf'))
v = Decimal(0.123)
# Equal number of negative infs
s = StatValue.from_list([ninf, ninf, v])
self.assertEqual(s.sum, ninf, "Not -Inf, but " + str(s.sum))
self.assertEqual(s.avg, ninf, "Not -Inf, but " + str(s.avg))
self.assertEqual(s.max, v, "Not 0.123, but " + str(s.max))
self.assertEqual(s.min, ninf, "Not -Inf, but " + str(s.min))
self.assertEqual(s.median, ninf, "Not -Inf, but " + str(s.median))
self.assertEqual(s.stdev, inf, "Not Inf, but " + str(s.stdev))
# Unequal number of negative infs
s = StatValue.from_list([ninf, ninf, ninf, v])
self.assertEqual(s.sum, ninf, "Not -Inf, but " + str(s.sum))
self.assertEqual(s.avg, ninf, "Not -Inf, but " + str(s.avg))
self.assertEqual(s.max, v, "Not 0.123, but " + str(s.max))
self.assertEqual(s.min, ninf, "Not -Inf, but " + str(s.min))
self.assertEqual(s.median, ninf, "Not -Inf, but " + str(s.median))
self.assertEqual(s.stdev, inf, "Not Inf, but " + str(s.stdev))