plugeth/core/state/state_object_test.go
2019-09-10 15:15:34 +02:00

71 lines
1.8 KiB
Go

// Copyright 2019 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package state
import (
"bytes"
"fmt"
"math/rand"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
)
func BenchmarkCutOriginal(b *testing.B) {
value := common.HexToHash("0x01")
for i := 0; i < b.N; i++ {
bytes.TrimLeft(value[:], "\x00")
}
}
func BenchmarkCutsetterFn(b *testing.B) {
value := common.HexToHash("0x01")
cutSetFn := func(r rune) bool {
return int32(r) == int32(0)
}
for i := 0; i < b.N; i++ {
bytes.TrimLeftFunc(value[:], cutSetFn)
}
}
func BenchmarkCutCustomTrim(b *testing.B) {
value := common.HexToHash("0x01")
for i := 0; i < b.N; i++ {
common.TrimLeftZeroes(value[:])
}
}
func xTestFuzzCutter(t *testing.T) {
rand.Seed(time.Now().Unix())
for {
v := make([]byte, 20)
zeroes := rand.Intn(21)
rand.Read(v[zeroes:])
exp := bytes.TrimLeft(v[:], "\x00")
got := common.TrimLeftZeroes(v)
if !bytes.Equal(exp, got) {
fmt.Printf("Input %x\n", v)
fmt.Printf("Exp %x\n", exp)
fmt.Printf("Got %x\n", got)
t.Fatalf("Error")
}
//break
}
}