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Add 20us tolerance to TestTotalProcessorTimeMacOs #116547

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Merged
merged 2 commits into from
Oct 21, 2025
Merged

Add 20us tolerance to TestTotalProcessorTimeMacOs #116547

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6912b0b
Add 20us tolerance to TestTotalProcessorTimeMacOs
jozkee Jun 11, 2025
171b2cd
Merge branch 'main' into ProcessorTimeMacOs
jozkee Oct 20, 2025
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6 changes: 4 additions & 2 deletions src/libraries/System.Diagnostics.Process/tests/ProcessTests.Unix.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -878,9 +878,11 @@ public unsafe void TestTotalProcessorTimeMacOs()

void AssertTime(TimeSpan managed, TimeSpan native, string label)
{
const double ToleranceInMicroseconds = 20;
double differenceUs = (managed - native).TotalMicroseconds;
Assert.True(
managed >= native,
$"Time '{label}' returned by managed API ({managed}) should be greated or equal to the time returned by native API ({native}).");
differenceUs >= -ToleranceInMicroseconds,
$"Time '{label}' returned by managed API ({managed}) should be greater or equal to the time returned by native API ({native}) within a tolerance of {ToleranceInMicroseconds} μs.");
}
}

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