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using System.Globalization;
using System.Threading;
using Godosa.Core.Diagnostics;
using Xunit;
namespace Godosa.Core.Tests.Diagnostics;
public class GpuAndCsvTests
{
[Fact]
public void GpuSamples_AverageSeparatelyFromFrames()
{
var stats = new FrameTimeStats(capacity: 4);
stats.Record(0.016, 0.002, 1, 0.0001);
Assert.Equal(0, stats.Summarize().GpuSamples);
Assert.Equal(0.0, stats.Summarize().AvgGpuMs);
stats.RecordGpu(0.001);
stats.RecordGpu(0.003);
var s = stats.Summarize();
Assert.Equal(2, s.GpuSamples);
Assert.Equal(2.0, s.AvgGpuMs, precision: 9);
}
[Fact]
public void GpuSamples_RollOverTheWindow()
{
var stats = new FrameTimeStats(capacity: 2);
stats.RecordGpu(0.010);
stats.RecordGpu(0.001);
stats.RecordGpu(0.003);
Assert.Equal(2.0, stats.Summarize().AvgGpuMs, precision: 9);
}
[Fact]
public void CsvRow_IsInvariantCulture_MsWithThreeDecimals_GpuBlankWhenUnknown()
{
var previous = Thread.CurrentThread.CurrentCulture;
Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE"); // comma decimals must not leak in
try
{
Assert.Equal("t_s,frame_ms,work_ms,sim_ticks,sim_ms,gpu_ms", PerfCsv.Header());
Assert.Equal("12.500,16.667,2.000,1,0.100,1.250", PerfCsv.Row(12.5, 0.0166667, 0.002, 1, 0.0001, 0.00125));
Assert.Equal("0.000,16.667,2.000,0,0.000,", PerfCsv.Row(0, 0.0166667, 0.002, 0, 0, null));
}
finally
{
Thread.CurrentThread.CurrentCulture = previous;
}
}
}
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