plugeth/eth/tracers/tracers_test.go
Martin Holst Swende a907d7e81a
all: more linters (#24783)
This enables the following linters

- typecheck
- unused
- staticcheck
- bidichk
- durationcheck
- exportloopref
- gosec

WIth a few exceptions.

- We use a deprecated protobuf in trezor. I didn't want to mess with that, since I cannot meaningfully test any changes there.
- The deprecated TypeMux is used in a few places still, so the warning for it is silenced for now.
- Using string type in context.WithValue is apparently wrong, one should use a custom type, to prevent collisions between different places in the hierarchy of callers. That should be fixed at some point, but may require some attention.
- The warnings for using weak random generator are squashed, since we use a lot of random without need for cryptographic guarantees.
2022-06-13 16:24:45 +02:00

112 lines
3.6 KiB
Go

// Copyright 2017 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 tracers
import (
"math/big"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth/tracers/logger"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/tests"
)
func BenchmarkTransactionTrace(b *testing.B) {
key, _ := crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
from := crypto.PubkeyToAddress(key.PublicKey)
gas := uint64(1000000) // 1M gas
to := common.HexToAddress("0x00000000000000000000000000000000deadbeef")
signer := types.LatestSignerForChainID(big.NewInt(1337))
tx, err := types.SignNewTx(key, signer,
&types.LegacyTx{
Nonce: 1,
GasPrice: big.NewInt(500),
Gas: gas,
To: &to,
})
if err != nil {
b.Fatal(err)
}
txContext := vm.TxContext{
Origin: from,
GasPrice: tx.GasPrice(),
}
context := vm.BlockContext{
CanTransfer: core.CanTransfer,
Transfer: core.Transfer,
Coinbase: common.Address{},
BlockNumber: new(big.Int).SetUint64(uint64(5)),
Time: new(big.Int).SetUint64(uint64(5)),
Difficulty: big.NewInt(0xffffffff),
GasLimit: gas,
BaseFee: big.NewInt(8),
}
alloc := core.GenesisAlloc{}
// The code pushes 'deadbeef' into memory, then the other params, and calls CREATE2, then returns
// the address
loop := []byte{
byte(vm.JUMPDEST), // [ count ]
byte(vm.PUSH1), 0, // jumpdestination
byte(vm.JUMP),
}
alloc[common.HexToAddress("0x00000000000000000000000000000000deadbeef")] = core.GenesisAccount{
Nonce: 1,
Code: loop,
Balance: big.NewInt(1),
}
alloc[from] = core.GenesisAccount{
Nonce: 1,
Code: []byte{},
Balance: big.NewInt(500000000000000),
}
_, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), alloc, false)
// Create the tracer, the EVM environment and run it
tracer := logger.NewStructLogger(&logger.Config{
Debug: false,
//DisableStorage: true,
//EnableMemory: false,
//EnableReturnData: false,
})
evm := vm.NewEVM(context, txContext, statedb, params.AllEthashProtocolChanges, vm.Config{Debug: true, Tracer: tracer})
msg, err := tx.AsMessage(signer, nil)
if err != nil {
b.Fatalf("failed to prepare transaction for tracing: %v", err)
}
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
snap := statedb.Snapshot()
st := core.NewStateTransition(evm, msg, new(core.GasPool).AddGas(tx.Gas()))
_, err = st.TransitionDb()
if err != nil {
b.Fatal(err)
}
statedb.RevertToSnapshot(snap)
if have, want := len(tracer.StructLogs()), 244752; have != want {
b.Fatalf("trace wrong, want %d steps, have %d", want, have)
}
tracer.Reset()
}
}