def test_basic(self):
"""
Calcul the variance of a list of number
"""
data = [186.0, 699, 132, 272, 291, 331, 199, 1890, 788, 1601]
expected = 391417.8777777777
result = Math.variance(data)
self.assertEqual(result, expected)
def test_two_value(self):
"""
Calcul the variance of a list of number
The list have only TWO number
"""
data = [186.0, 192.3]
expected = 19.84500000000007
result = Math.variance(data)
self.assertEqual(result, expected)
def test_one_value(self):
"""
Calcul the variance of a list of number
The list have only ONE number
"""
data = [186.0]
expected = "ZeroDivisionError"
try:
result = Math.variance(data)
except ZeroDivisionError:
result = "ZeroDivisionError"
self.assertEqual(result, expected)