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// 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(single) over 5000 iterations for the domain -1, +1
private const float absSingleDelta = 0.0004f;
private const float absSingleExpectedResult = 2500.03125f;
[Benchmark]
public static void AbsSingleBenchmark()
{
foreach (var iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
AbsSingleTest();
}
}
}
public static void AbsSingleTest()
{
var result = 0.0f; var value = -1.0f;
for (var iteration = 0; iteration < iterations; iteration++)
{
value += absSingleDelta;
result += Math.Abs(value);
}
var diff = Math.Abs(absSingleExpectedResult - result);
if (diff > singleEpsilon)
{
throw new Exception($"Expected Result {absSingleExpectedResult}; Actual Result {result}");
}
}
}
}
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