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package main
import (
"io"
"os"
"testing"
upTar "archive/tar"
ourTar "github.com/vbatts/tar-split/archive/tar"
)
var testfile = "../../archive/tar/testdata/sparse-formats.tar"
func BenchmarkUpstreamTar(b *testing.B) {
for n := 0; n < b.N; n++ {
fh, err := os.Open(testfile)
if err != nil {
b.Fatal(err)
}
tr := upTar.NewReader(fh)
for {
_, err := tr.Next()
if err != nil {
if err == io.EOF {
break
}
fh.Close()
b.Fatal(err)
}
_, err = io.Copy(io.Discard, tr)
if err != nil {
b.Fatal(err)
}
}
if err := fh.Close(); err != nil {
b.Fatal(err)
}
}
}
func BenchmarkOurTarNoAccounting(b *testing.B) {
for n := 0; n < b.N; n++ {
fh, err := os.Open(testfile)
if err != nil {
b.Fatal(err)
}
tr := ourTar.NewReader(fh)
tr.RawAccounting = false // this is default, but explicit here
for {
_, err := tr.Next()
if err != nil {
if err == io.EOF {
break
}
fh.Close()
b.Fatal(err)
}
_, err = io.Copy(io.Discard, tr)
if err != nil {
b.Fatal(err)
}
}
if err := fh.Close(); err != nil {
b.Fatal(err)
}
}
}
func BenchmarkOurTarYesAccounting(b *testing.B) {
for n := 0; n < b.N; n++ {
fh, err := os.Open(testfile)
if err != nil {
b.Fatal(err)
}
tr := ourTar.NewReader(fh)
tr.RawAccounting = true // This enables mechanics for collecting raw bytes
for {
_ = tr.RawBytes()
_, err := tr.Next()
_ = tr.RawBytes()
if err != nil {
if err == io.EOF {
break
}
fh.Close()
b.Fatal(err)
}
_, err = io.Copy(io.Discard, tr)
if err != nil {
b.Fatal(err)
}
_ = tr.RawBytes()
}
if err := fh.Close(); err != nil {
b.Fatal(err)
}
}
}
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