forked from cerc-io/plugeth
2391fbc676
This PR moves our fuzzers from tests/fuzzers into whatever their respective 'native' package is. The historical reason why they were placed in an external location, is that when they were based on go-fuzz, they could not be "hidden" via the _test.go prefix. So in order to shove them away from the go-ethereum "production code", they were put aside. But now we've rewritten them to be based on golang testing, and thus can be brought back. I've left (in tests/) the ones that are not production (bls128381), require non-standard imports (secp requires btcec, bn256 requires gnark/google/cloudflare deps). This PR also adds a fuzzer for precompiled contracts, because why not. This PR utilizes a newly rewritten replacement for go-118-fuzz-build, namely gofuzz-shim, which utilises the inputs from the fuzzing engine better.
45 lines
1.4 KiB
Go
45 lines
1.4 KiB
Go
// 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)
|
|
if inHave := string(input); inWant != inHave {
|
|
t.Errorf("Precompiled %v modified input data", a)
|
|
}
|
|
})
|
|
}
|