def test_stdev_non_number_mean(self):
t = [1, 1, 1]
g = gcs.calc_stdev(t, 'ghf')
with self.assertRaises(TypeError) as context:
gcs.calc_stdev(t, 'bad')
self.assertEqual(str(context.exception),
'Bad Argument, Requires list of numbers')
def test_stdev(self):
self.assertAlmostEqual(get_column_stats.calc_stdev([1, 1, 1, 1, 1], 1),
0,
places=2)
self.assertAlmostEqual(get_column_stats.calc_stdev([1, 2, 3, 4, 5], 3),
1.58,
places=2)
self.assertAlmostEqual(get_column_stats.calc_stdev([2, 3, 9, 11, 45],
14),
17.75,
places=2)
self.assertAlmostEqual(get_column_stats.calc_stdev([2, 2, 2, 10, 6],
4.4),
3.577,
places=2)
def test_stdev(self):
b = get_column_stats.calc_stdev(self)
self.assertEqual(b, self.stdev)
def test_stdev_full(self):
r = gcs.calc_stdev([3, 3, 5, 5], 4)
self.assertEqual(r, 1)
def test_stdev_non_number_list(self):
t = ['a', 'b', 'c']
with self.assertRaises(TypeError) as context:
gcs.calc_stdev(t, 1)
self.assertEqual(str(context.exception),
'Bad Argument, Requires list of numbers')
def test_stdev_null_list(self):
with self.assertRaises(TypeError) as context:
gcs.calc_stdev(None, 0)
self.assertEqual(str(context.exception),
'Bad Argument, Requires list of numbers')
def test_stdev_empty_args(self):
t = []
with self.assertRaises(ZeroDivisionError) as context:
gcs.calc_stdev(t, None)
self.assertEqual(str(context.exception), 'list is empty')
def test_stdev_random(self):
exp_std = np.random.uniform(0, 100)
dist = np.random.normal(loc=0, scale=exp_std, size=200000).tolist()
self.assertAlmostEqual(gcs.calc_stdev(dist), exp_std, places=0)
def test_stdev_const(self):
self.assertEqual(gcs.calc_stdev([1, 1, 1, 1, 1, 1]), 0)