Official Go implementation of the Ethereum protocol
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go-ethereum/core/vm/contracts_fuzz_test.go

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1.4 KiB

// Copyright 2023 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 vm
import (
"testing"
"github.com/ethereum/go-ethereum/common"
)
func FuzzPrecompiledContracts(f *testing.F) {
// Create list of addresses
var addrs []common.Address
for k := range allPrecompiles {
addrs = append(addrs, k)
}
f.Fuzz(func(t *testing.T, addr uint8, input []byte) {
a := addrs[int(addr)%len(addrs)]
p := allPrecompiles[a]
gas := p.RequiredGas(input)
if gas > 10_000_000 {
return
}
inWant := string(input)
RunPrecompiledContract(p, input, gas, nil)
if inHave := string(input); inWant != inHave {
t.Errorf("Precompiled %v modified input data", a)
}
})
}