github.com/fff-chain/go-fff@v0.0.0-20220726032732-1c84420b8a99/eth/tracers/tracers_test.go (about)

     1  // Copyright 2017 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package tracers
    18  
    19  import (
    20  	"math/big"
    21  	"testing"
    22  
    23  	"github.com/fff-chain/go-fff/common"
    24  	"github.com/fff-chain/go-fff/common/hexutil"
    25  	"github.com/fff-chain/go-fff/core"
    26  	"github.com/fff-chain/go-fff/core/rawdb"
    27  	"github.com/fff-chain/go-fff/core/types"
    28  	"github.com/fff-chain/go-fff/core/vm"
    29  	"github.com/fff-chain/go-fff/crypto"
    30  	"github.com/fff-chain/go-fff/params"
    31  	"github.com/fff-chain/go-fff/tests"
    32  )
    33  
    34  // callTrace is the result of a callTracer run.
    35  type callTrace struct {
    36  	Type    string          `json:"type"`
    37  	From    common.Address  `json:"from"`
    38  	To      common.Address  `json:"to"`
    39  	Input   hexutil.Bytes   `json:"input"`
    40  	Output  hexutil.Bytes   `json:"output"`
    41  	Gas     *hexutil.Uint64 `json:"gas,omitempty"`
    42  	GasUsed *hexutil.Uint64 `json:"gasUsed,omitempty"`
    43  	Value   *hexutil.Big    `json:"value,omitempty"`
    44  	Error   string          `json:"error,omitempty"`
    45  	Calls   []callTrace     `json:"calls,omitempty"`
    46  }
    47  
    48  func BenchmarkTransactionTrace(b *testing.B) {
    49  	key, _ := crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
    50  	from := crypto.PubkeyToAddress(key.PublicKey)
    51  	gas := uint64(1000000) // 1M gas
    52  	to := common.HexToAddress("0x00000000000000000000000000000000deadbeef")
    53  	signer := types.LatestSignerForChainID(big.NewInt(1337))
    54  	tx, err := types.SignNewTx(key, signer,
    55  		&types.LegacyTx{
    56  			Nonce:    1,
    57  			GasPrice: big.NewInt(500),
    58  			Gas:      gas,
    59  			To:       &to,
    60  		})
    61  	if err != nil {
    62  		b.Fatal(err)
    63  	}
    64  	txContext := vm.TxContext{
    65  		Origin:   from,
    66  		GasPrice: tx.GasPrice(),
    67  	}
    68  	context := vm.BlockContext{
    69  		CanTransfer: core.CanTransfer,
    70  		Transfer:    core.Transfer,
    71  		Coinbase:    common.Address{},
    72  		BlockNumber: new(big.Int).SetUint64(uint64(5)),
    73  		Time:        new(big.Int).SetUint64(uint64(5)),
    74  		Difficulty:  big.NewInt(0xffffffff),
    75  		GasLimit:    gas,
    76  	}
    77  	alloc := core.GenesisAlloc{}
    78  	// The code pushes 'deadbeef' into memory, then the other params, and calls CREATE2, then returns
    79  	// the address
    80  	loop := []byte{
    81  		byte(vm.JUMPDEST), //  [ count ]
    82  		byte(vm.PUSH1), 0, // jumpdestination
    83  		byte(vm.JUMP),
    84  	}
    85  	alloc[common.HexToAddress("0x00000000000000000000000000000000deadbeef")] = core.GenesisAccount{
    86  		Nonce:   1,
    87  		Code:    loop,
    88  		Balance: big.NewInt(1),
    89  	}
    90  	alloc[from] = core.GenesisAccount{
    91  		Nonce:   1,
    92  		Code:    []byte{},
    93  		Balance: big.NewInt(500000000000000),
    94  	}
    95  	_, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), alloc, false)
    96  	// Create the tracer, the EVM environment and run it
    97  	tracer := vm.NewStructLogger(&vm.LogConfig{
    98  		Debug: false,
    99  		//DisableStorage: true,
   100  		//EnableMemory: false,
   101  		//EnableReturnData: false,
   102  	})
   103  	evm := vm.NewEVM(context, txContext, statedb, params.AllEthashProtocolChanges, vm.Config{Debug: true, Tracer: tracer})
   104  	msg, err := tx.AsMessage(signer)
   105  	if err != nil {
   106  		b.Fatalf("failed to prepare transaction for tracing: %v", err)
   107  	}
   108  	b.ResetTimer()
   109  	b.ReportAllocs()
   110  
   111  	for i := 0; i < b.N; i++ {
   112  		snap := statedb.Snapshot()
   113  		st := core.NewStateTransition(evm, msg, new(core.GasPool).AddGas(tx.Gas()))
   114  		_, err = st.TransitionDb()
   115  		if err != nil {
   116  			b.Fatal(err)
   117  		}
   118  		statedb.RevertToSnapshot(snap)
   119  		if have, want := len(tracer.StructLogs()), 244752; have != want {
   120  			b.Fatalf("trace wrong, want %d steps, have %d", want, have)
   121  		}
   122  		tracer.Reset()
   123  	}
   124  }