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cbf3d8fed2
https://eips.ethereum.org/EIPS/eip-7928 spec: > Precompiled contracts: Precompiles MUST be included when accessed. If a precompile receives value, it is recorded with a balance change. Otherwise, it is included with empty change lists. The precompiled contracts are not explicitly touched when they are invoked since Amsterdam fork.
44 lines
1.4 KiB
Go
44 lines
1.4 KiB
Go
// Copyright 2023 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package vm
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import (
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"testing"
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"github.com/ethereum/go-ethereum/common"
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)
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func FuzzPrecompiledContracts(f *testing.F) {
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// Create list of addresses
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var addrs []common.Address
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for k := range allPrecompiles {
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addrs = append(addrs, k)
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}
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f.Fuzz(func(t *testing.T, addr uint8, input []byte) {
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a := addrs[int(addr)%len(addrs)]
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p := allPrecompiles[a]
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gas := p.RequiredGas(input)
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if gas > 10_000_000 {
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return
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}
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inWant := string(input)
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RunPrecompiledContract(nil, p, a, input, gas, nil)
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if inHave := string(input); inWant != inHave {
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t.Errorf("Precompiled %v modified input data", a)
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}
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})
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}
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