blob: f5650ab2c7278152cec787aa85e7b08ac2139562 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using Microsoft.Xunit.Performance;
namespace Functions
{
public static partial class MathTests
{
// Tests Math.Abs(double) over 5000 iterations for the domain -1, +1
private const double absDoubleDelta = 0.0004;
private const double absDoubleExpectedResult = 2499.9999999999659;
[Benchmark]
public static void AbsDoubleBenchmark()
{
foreach (var iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
AbsDoubleTest();
}
}
}
public static void AbsDoubleTest()
{
var result = 0.0; var value = -1.0;
for (var iteration = 0; iteration < iterations; iteration++)
{
value += absDoubleDelta;
result += Math.Abs(value);
}
var diff = Math.Abs(absDoubleExpectedResult - result);
if (diff > doubleEpsilon)
{
throw new Exception($"Expected Result {absDoubleExpectedResult,20:g17}; Actual Result {result,20:g17}");
}
}
}
}
|