github.com/intfoundation/intchain@v0.0.0-20220727031208-4316ad31ca73/core/vm/gas_table_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 vm
    18  
    19  import (
    20  	"math"
    21  	"testing"
    22  )
    23  
    24  func TestMemoryGasCost(t *testing.T) {
    25  	tests := []struct {
    26  		size     uint64
    27  		cost     uint64
    28  		overflow bool
    29  	}{
    30  		{0x1fffffffe0, 36028809887088637, false},
    31  		{0x1fffffffe1, 0, true},
    32  	}
    33  	for i, tt := range tests {
    34  		v, err := memoryGasCost(&Memory{}, tt.size)
    35  		if (err == errGasUintOverflow) != tt.overflow {
    36  			t.Errorf("test %d: overflow mismatch: have %v, want %v", i, err == errGasUintOverflow, tt.overflow)
    37  		}
    38  		if v != tt.cost {
    39  			t.Errorf("test %d: gas cost mismatch: have %v, want %v", i, v, tt.cost)
    40  		}
    41  	}
    42  }
    43  
    44  var eip2200Tests = []struct {
    45  	original byte
    46  	gaspool  uint64
    47  	input    string
    48  	used     uint64
    49  	refund   uint64
    50  	failure  error
    51  }{
    52  	{0, math.MaxUint64, "0x60006000556000600055", 1612, 0, nil},                // 0 -> 0 -> 0
    53  	{0, math.MaxUint64, "0x60006000556001600055", 20812, 0, nil},               // 0 -> 0 -> 1
    54  	{0, math.MaxUint64, "0x60016000556000600055", 20812, 19200, nil},           // 0 -> 1 -> 0
    55  	{0, math.MaxUint64, "0x60016000556002600055", 20812, 0, nil},               // 0 -> 1 -> 2
    56  	{0, math.MaxUint64, "0x60016000556001600055", 20812, 0, nil},               // 0 -> 1 -> 1
    57  	{1, math.MaxUint64, "0x60006000556000600055", 5812, 15000, nil},            // 1 -> 0 -> 0
    58  	{1, math.MaxUint64, "0x60006000556001600055", 5812, 4200, nil},             // 1 -> 0 -> 1
    59  	{1, math.MaxUint64, "0x60006000556002600055", 5812, 0, nil},                // 1 -> 0 -> 2
    60  	{1, math.MaxUint64, "0x60026000556000600055", 5812, 15000, nil},            // 1 -> 2 -> 0
    61  	{1, math.MaxUint64, "0x60026000556003600055", 5812, 0, nil},                // 1 -> 2 -> 3
    62  	{1, math.MaxUint64, "0x60026000556001600055", 5812, 4200, nil},             // 1 -> 2 -> 1
    63  	{1, math.MaxUint64, "0x60026000556002600055", 5812, 0, nil},                // 1 -> 2 -> 2
    64  	{1, math.MaxUint64, "0x60016000556000600055", 5812, 15000, nil},            // 1 -> 1 -> 0
    65  	{1, math.MaxUint64, "0x60016000556002600055", 5812, 0, nil},                // 1 -> 1 -> 2
    66  	{1, math.MaxUint64, "0x60016000556001600055", 1612, 0, nil},                // 1 -> 1 -> 1
    67  	{0, math.MaxUint64, "0x600160005560006000556001600055", 40818, 19200, nil}, // 0 -> 1 -> 0 -> 1
    68  	{1, math.MaxUint64, "0x600060005560016000556000600055", 10818, 19200, nil}, // 1 -> 0 -> 1 -> 0
    69  	{1, 2306, "0x6001600055", 2306, 0, ErrOutOfGas},                            // 1 -> 1 (2300 sentry + 2xPUSH)
    70  	{1, 2307, "0x6001600055", 806, 0, nil},                                     // 1 -> 1 (2301 sentry + 2xPUSH)
    71  }
    72  
    73  //func TestEIP2200(t *testing.T) {
    74  //	for i, tt := range eip2200Tests {
    75  //		address := common.BytesToAddress([]byte("contract"))
    76  //
    77  //		statedb, _ := state.New(common.Hash{}, state.NewDatabase(rawdb.NewMemoryDatabase()))
    78  //		statedb.CreateAccount(address)
    79  //		statedb.SetCode(address, hexutil.MustDecode(tt.input))
    80  //		statedb.SetState(address, common.Hash{}, common.BytesToHash([]byte{tt.original}))
    81  //		statedb.Finalise(true) // Push the state into the "original" slot
    82  //
    83  //		vmctx := Context{
    84  //			CanTransfer: func(StateDB, common.Address, *big.Int) bool { return true },
    85  //			Transfer:    func(StateDB, common.Address, common.Address, *big.Int) {},
    86  //		}
    87  //		vmenv := NewEVM(vmctx, statedb, params.AllEthashProtocolChanges, Config{ExtraEips: []int{2200}})
    88  //
    89  //		_, gas, err := vmenv.Call(AccountRef(common.Address{}), address, nil, tt.gaspool, new(big.Int))
    90  //		if err != tt.failure {
    91  //			t.Errorf("test %d: failure mismatch: have %v, want %v", i, err, tt.failure)
    92  //		}
    93  //		if used := tt.gaspool - gas; used != tt.used {
    94  //			t.Errorf("test %d: gas used mismatch: have %v, want %v", i, used, tt.used)
    95  //		}
    96  //		if refund := vmenv.StateDB.GetRefund(); refund != tt.refund {
    97  //			t.Errorf("test %d: gas refund mismatch: have %v, want %v", i, refund, tt.refund)
    98  //		}
    99  //	}
   100  //}