moby/pkg/stdcopy/stdcopy_test.go

package stdcopy

import (
	"bytes"
	"io/ioutil"
	"testing"
)

func BenchmarkWrite(b *testing.B) {
	w := NewStdWriter(ioutil.Discard, Stdout)
	data := []byte("Test line for testing stdwriter performance\n")
	data = bytes.Repeat(data, 100)
	b.SetBytes(int64(len(data)))
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		if _, err := w.Write(data); err != nil {
			b.Fatal(err)
		}
	}
}