// 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 . package vm import ( "context" "errors" "math" "strconv" "testing" "github.com/ledgerwatch/erigon-lib/common/hexutil" "github.com/holiman/uint256" libcommon "github.com/ledgerwatch/erigon-lib/common" "github.com/ledgerwatch/erigon-lib/common/datadir" "github.com/ledgerwatch/erigon-lib/kv/memdb" "github.com/ledgerwatch/erigon/core/state" "github.com/ledgerwatch/erigon/core/state/temporal" "github.com/ledgerwatch/erigon/core/vm/evmtypes" "github.com/ledgerwatch/erigon/params" "github.com/ledgerwatch/erigon/turbo/rpchelper" ) func TestMemoryGasCost(t *testing.T) { t.Parallel() tests := []struct { size uint64 cost uint64 overflow bool }{ {0x1fffffffe0, 36028809887088637, false}, {0x1fffffffe1, 0, true}, } for i, tt := range tests { v, err := memoryGasCost(&Memory{}, tt.size) if (err == ErrGasUintOverflow) != tt.overflow { t.Errorf("test %d: overflow mismatch: have %v, want %v", i, err == ErrGasUintOverflow, tt.overflow) } if v != tt.cost { t.Errorf("test %d: gas cost mismatch: have %v, want %v", i, v, tt.cost) } } } var eip2200Tests = []struct { original byte gaspool uint64 input string used uint64 refund uint64 failure error }{ {0, math.MaxUint64, "0x60006000556000600055", 1612, 0, nil}, // 0 -> 0 -> 0 {0, math.MaxUint64, "0x60006000556001600055", 20812, 0, nil}, // 0 -> 0 -> 1 {0, math.MaxUint64, "0x60016000556000600055", 20812, 19200, nil}, // 0 -> 1 -> 0 {0, math.MaxUint64, "0x60016000556002600055", 20812, 0, nil}, // 0 -> 1 -> 2 {0, math.MaxUint64, "0x60016000556001600055", 20812, 0, nil}, // 0 -> 1 -> 1 {1, math.MaxUint64, "0x60006000556000600055", 5812, 15000, nil}, // 1 -> 0 -> 0 {1, math.MaxUint64, "0x60006000556001600055", 5812, 4200, nil}, // 1 -> 0 -> 1 {1, math.MaxUint64, "0x60006000556002600055", 5812, 0, nil}, // 1 -> 0 -> 2 {1, math.MaxUint64, "0x60026000556000600055", 5812, 15000, nil}, // 1 -> 2 -> 0 {1, math.MaxUint64, "0x60026000556003600055", 5812, 0, nil}, // 1 -> 2 -> 3 {1, math.MaxUint64, "0x60026000556001600055", 5812, 4200, nil}, // 1 -> 2 -> 1 {1, math.MaxUint64, "0x60026000556002600055", 5812, 0, nil}, // 1 -> 2 -> 2 {1, math.MaxUint64, "0x60016000556000600055", 5812, 15000, nil}, // 1 -> 1 -> 0 {1, math.MaxUint64, "0x60016000556002600055", 5812, 0, nil}, // 1 -> 1 -> 2 {1, math.MaxUint64, "0x60016000556001600055", 1612, 0, nil}, // 1 -> 1 -> 1 {0, math.MaxUint64, "0x600160005560006000556001600055", 40818, 19200, nil}, // 0 -> 1 -> 0 -> 1 {1, math.MaxUint64, "0x600060005560016000556000600055", 10818, 19200, nil}, // 1 -> 0 -> 1 -> 0 {1, 2306, "0x6001600055", 2306, 0, ErrOutOfGas}, // 1 -> 1 (2300 sentry + 2xPUSH) {1, 2307, "0x6001600055", 806, 0, nil}, // 1 -> 1 (2301 sentry + 2xPUSH) } func TestEIP2200(t *testing.T) { for i, tt := range eip2200Tests { tt := tt i := i t.Run(strconv.Itoa(i), func(t *testing.T) { t.Parallel() address := libcommon.BytesToAddress([]byte("contract")) _, tx := memdb.NewTestTx(t) s := state.New(state.NewPlainStateReader(tx)) s.CreateAccount(address, true) s.SetCode(address, hexutil.MustDecode(tt.input)) s.SetState(address, &libcommon.Hash{}, *uint256.NewInt(uint64(tt.original))) _ = s.CommitBlock(params.AllProtocolChanges.Rules(0, 0), state.NewPlainStateWriter(tx, tx, 0)) vmctx := evmtypes.BlockContext{ CanTransfer: func(evmtypes.IntraBlockState, libcommon.Address, *uint256.Int) bool { return true }, Transfer: func(evmtypes.IntraBlockState, libcommon.Address, libcommon.Address, *uint256.Int, bool) {}, } vmenv := NewEVM(vmctx, evmtypes.TxContext{}, s, params.AllProtocolChanges, Config{ExtraEips: []int{2200}}) _, gas, err := vmenv.Call(AccountRef(libcommon.Address{}), address, nil, tt.gaspool, new(uint256.Int), false /* bailout */) if !errors.Is(err, tt.failure) { t.Errorf("test %d: failure mismatch: have %v, want %v", i, err, tt.failure) } if used := tt.gaspool - gas; used != tt.used { t.Errorf("test %d: gas used mismatch: have %v, want %v", i, used, tt.used) } if refund := vmenv.IntraBlockState().GetRefund(); refund != tt.refund { t.Errorf("test %d: gas refund mismatch: have %v, want %v", i, refund, tt.refund) } }) } } var createGasTests = []struct { code string eip3860 bool gasUsed uint64 }{ // create(0, 0, 0xc000) {"0x61C00060006000f0", false, 41225}, // create(0, 0, 0xc000) {"0x61C00060006000f0", true, 44297}, // create2(0, 0, 0xc000, 0) {"0x600061C00060006000f5", false, 50444}, // create2(0, 0, 0xc000, 0) {"0x600061C00060006000f5", true, 53516}, } func TestCreateGas(t *testing.T) { t.Parallel() _, db, _ := temporal.NewTestDB(t, datadir.New(t.TempDir()), nil) for i, tt := range createGasTests { address := libcommon.BytesToAddress([]byte("contract")) tx, _ := db.BeginRw(context.Background()) defer tx.Rollback() stateReader := rpchelper.NewLatestStateReader(tx) stateWriter := rpchelper.NewLatestStateWriter(tx, 0) s := state.New(stateReader) s.CreateAccount(address, true) s.SetCode(address, hexutil.MustDecode(tt.code)) _ = s.CommitBlock(params.TestChainConfig.Rules(0, 0), stateWriter) vmctx := evmtypes.BlockContext{ CanTransfer: func(evmtypes.IntraBlockState, libcommon.Address, *uint256.Int) bool { return true }, Transfer: func(evmtypes.IntraBlockState, libcommon.Address, libcommon.Address, *uint256.Int, bool) {}, } config := Config{} if tt.eip3860 { config.ExtraEips = []int{3860} } vmenv := NewEVM(vmctx, evmtypes.TxContext{}, s, params.TestChainConfig, config) var startGas uint64 = math.MaxUint64 _, gas, err := vmenv.Call(AccountRef(libcommon.Address{}), address, nil, startGas, new(uint256.Int), false /* bailout */) if err != nil { t.Errorf("test %d execution failed: %v", i, err) } if gasUsed := startGas - gas; gasUsed != tt.gasUsed { t.Errorf("test %d: gas used mismatch: have %v, want %v", i, gasUsed, tt.gasUsed) } tx.Rollback() } }