github.com/ontio/ontology@v1.14.4/vm/evm/gas_table_test.go (about)

     1  // Copyright (C) 2021 The Ontology Authors
     2  // Copyright 2017 The go-ethereum Authors
     3  // This file is part of the go-ethereum library.
     4  //
     5  // The go-ethereum library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Lesser General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // The go-ethereum library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  // GNU Lesser General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Lesser General Public License
    16  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    17  
    18  package evm
    19  
    20  import (
    21  	"math"
    22  	"math/big"
    23  	"testing"
    24  
    25  	"github.com/ethereum/go-ethereum/common"
    26  	"github.com/ethereum/go-ethereum/common/hexutil"
    27  	"github.com/ontio/ontology/core/store/leveldbstore"
    28  	"github.com/ontio/ontology/core/store/overlaydb"
    29  	"github.com/ontio/ontology/smartcontract/service/native/ong"
    30  	"github.com/ontio/ontology/smartcontract/storage"
    31  	"github.com/ontio/ontology/vm/evm/errors"
    32  	"github.com/ontio/ontology/vm/evm/params"
    33  )
    34  
    35  func TestMemoryGasCost(t *testing.T) {
    36  	tests := []struct {
    37  		size     uint64
    38  		cost     uint64
    39  		overflow bool
    40  	}{
    41  		{0x1fffffffe0, 36028809887088637, false},
    42  		{0x1fffffffe1, 0, true},
    43  	}
    44  	for i, tt := range tests {
    45  		v, err := memoryGasCost(&Memory{}, tt.size)
    46  		if (err == errors.ErrGasUintOverflow) != tt.overflow {
    47  			t.Errorf("test %d: overflow mismatch: have %v, want %v", i, err == errors.ErrGasUintOverflow, tt.overflow)
    48  		}
    49  		if v != tt.cost {
    50  			t.Errorf("test %d: gas cost mismatch: have %v, want %v", i, v, tt.cost)
    51  		}
    52  	}
    53  }
    54  
    55  var eip2200Tests = []struct {
    56  	original byte
    57  	gaspool  uint64
    58  	input    string
    59  	used     uint64
    60  	refund   uint64
    61  	failure  error
    62  }{
    63  	{0, math.MaxUint64, "0x60006000556000600055", 1612, 0, nil},                // 0 -> 0 -> 0
    64  	{0, math.MaxUint64, "0x60006000556001600055", 20812, 0, nil},               // 0 -> 0 -> 1
    65  	{0, math.MaxUint64, "0x60016000556000600055", 20812, 19200, nil},           // 0 -> 1 -> 0
    66  	{0, math.MaxUint64, "0x60016000556002600055", 20812, 0, nil},               // 0 -> 1 -> 2
    67  	{0, math.MaxUint64, "0x60016000556001600055", 20812, 0, nil},               // 0 -> 1 -> 1
    68  	{1, math.MaxUint64, "0x60006000556000600055", 5812, 15000, nil},            // 1 -> 0 -> 0
    69  	{1, math.MaxUint64, "0x60006000556001600055", 5812, 4200, nil},             // 1 -> 0 -> 1
    70  	{1, math.MaxUint64, "0x60006000556002600055", 5812, 0, nil},                // 1 -> 0 -> 2
    71  	{1, math.MaxUint64, "0x60026000556000600055", 5812, 15000, nil},            // 1 -> 2 -> 0
    72  	{1, math.MaxUint64, "0x60026000556003600055", 5812, 0, nil},                // 1 -> 2 -> 3
    73  	{1, math.MaxUint64, "0x60026000556001600055", 5812, 4200, nil},             // 1 -> 2 -> 1
    74  	{1, math.MaxUint64, "0x60026000556002600055", 5812, 0, nil},                // 1 -> 2 -> 2
    75  	{1, math.MaxUint64, "0x60016000556000600055", 5812, 15000, nil},            // 1 -> 1 -> 0
    76  	{1, math.MaxUint64, "0x60016000556002600055", 5812, 0, nil},                // 1 -> 1 -> 2
    77  	{1, math.MaxUint64, "0x60016000556001600055", 1612, 0, nil},                // 1 -> 1 -> 1
    78  	{0, math.MaxUint64, "0x600160005560006000556001600055", 40818, 19200, nil}, // 0 -> 1 -> 0 -> 1
    79  	{1, math.MaxUint64, "0x600060005560016000556000600055", 10818, 19200, nil}, // 1 -> 0 -> 1 -> 0
    80  	{1, 2306, "0x6001600055", 2306, 0, errors.ErrOutOfGas},                     // 1 -> 1 (2300 sentry + 2xPUSH)
    81  	{1, 2307, "0x6001600055", 806, 0, nil},                                     // 1 -> 1 (2301 sentry + 2xPUSH)
    82  }
    83  
    84  func TestEIP2200(t *testing.T) {
    85  	for i, tt := range eip2200Tests {
    86  		address := common.BytesToAddress([]byte("contract"))
    87  
    88  		db := storage.NewCacheDB(overlaydb.NewOverlayDB(leveldbstore.NewMemLevelDBStore()))
    89  		statedb := storage.NewStateDB(db, common.Hash{}, common.Hash{}, ong.OngBalanceHandle{})
    90  		statedb.CreateAccount(address)
    91  		statedb.SetCode(address, hexutil.MustDecode(tt.input))
    92  		statedb.SetState(address, common.Hash{}, common.BytesToHash([]byte{tt.original}))
    93  		_ = statedb.Commit() // Push the state into the "original" slot
    94  
    95  		vmctx := BlockContext{
    96  			CanTransfer: func(StateDB, common.Address, *big.Int) bool { return true },
    97  			Transfer:    func(StateDB, common.Address, common.Address, *big.Int) {},
    98  		}
    99  		vmenv := NewEVM(vmctx, TxContext{}, statedb, params.AllEthashProtocolChanges, Config{ExtraEips: []int{2200}})
   100  
   101  		_, gas, err := vmenv.Call(AccountRef(common.Address{}), address, nil, tt.gaspool, new(big.Int))
   102  		if err != tt.failure {
   103  			t.Errorf("test %d: failure mismatch: have %v, want %v", i, err, tt.failure)
   104  		}
   105  		if used := tt.gaspool - gas; used != tt.used {
   106  			t.Errorf("test %d: gas used mismatch: have %v, want %v", i, used, tt.used)
   107  		}
   108  		if refund := vmenv.StateDB.GetRefund(); refund != tt.refund {
   109  			t.Errorf("test %d: gas refund mismatch: have %v, want %v", i, refund, tt.refund)
   110  		}
   111  	}
   112  }