def test_mean_and_stddev(self):
values = [10, 5, 15]
mean_val, stddev_val = perfcompare.MeanAndStddev(values)
self.assertEquals(mean_val, 10.0)
self.assertEquals(perfcompare.Mean(values), 10.0)
self.assertEquals(stddev_val, 5.0)
# Check error cases.
self.assertRaises(lambda: perfcompare.Mean([]))
self.assertRaises(lambda: perfcompare.MeanAndStddev([]))
self.assertRaises(lambda: perfcompare.MeanAndStddev([100]))
def test_mean_and_stddev(self):
values = [10, 5, 15]
mean_val, stddev_val = perfcompare.MeanAndStddev(values)
self.assertEquals(mean_val, 10.0)
self.assertEquals(perfcompare.Mean(values), 10.0)
self.assertEquals(stddev_val, 5.0)
# Single-value sample.
self.assertEquals(perfcompare.MeanAndStddev([123]), (123.0, None))
# Check error cases.
self.assertRaises(AssertionError, lambda: perfcompare.Mean([]))
self.assertRaises(AssertionError,
lambda: perfcompare.MeanAndStddev([]))