/
ValueTask.cs
69 lines (60 loc) · 1.18 KB
/
ValueTask.cs
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using System;
using System.Reflection;
using System.Threading.Tasks;
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Running;
using Xunit;
namespace CsharpSeven
{
public class ValueTask
{
[Fact]
public async Task Can_Be_Awaited()
{
ValueTask<int> GetIntAsync()
{
return new ValueTask<int>(1);
}
/* Setup */
/* Test */
var i = await GetIntAsync();
/* Assert */
Assert.Equal(i, 1);
}
[Fact]
public async Task Can_Be_Async()
{
async ValueTask<int> GetIntAsync()
{
return 1;
}
/* Setup */
/* Test */
var i = await GetIntAsync();
/* Assert */
Assert.Equal(i, 1);
}
public void Is_Faster_Than_Task()
{
var result = BenchmarkRunner.Run<ValueTaskBenchmark>();
var taskTime = result.Reports[0].ResultStatistics.Mean;
var valueTaskTime = result.Reports[1].ResultStatistics.Mean;
Assert.True(taskTime < valueTaskTime);
}
}
public class ValueTaskBenchmark
{
[Benchmark]
public async Task<int> TestTask()
{
await Task.Delay(TimeSpan.FromTicks(1));
return 10;
}
[Benchmark]
public async ValueTask<int> TestValueTask()
{
await Task.Delay(TimeSpan.FromTicks(1));
return 10;
}
}
}