test_statistics.py 文件源码

def test_compare_with_math_fsum(self):
        # Compare with the math.fsum function.
        # Ideally we ought to get the exact same result, but sometimes
        # we differ by a very slight amount :-(
        data = [random.uniform(-100, 1000) for _ in range(1000)]
        self.assertApproxEqual(self.func(data), math.fsum(data), rel=2e-16)