181 lines
7.2 KiB
Go
181 lines
7.2 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 vm
|
|
|
|
import (
|
|
"bytes"
|
|
"math"
|
|
"math/big"
|
|
"sort"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/common/hexutil"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
"github.com/ethereum/go-ethereum/core/state"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
)
|
|
|
|
func TestMemoryGasCost(t *testing.T) {
|
|
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 {
|
|
address := common.BytesToAddress([]byte("contract"))
|
|
|
|
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
|
|
statedb.CreateAccount(address)
|
|
statedb.SetCode(address, hexutil.MustDecode(tt.input))
|
|
statedb.SetState(address, common.Hash{}, common.BytesToHash([]byte{tt.original}))
|
|
statedb.Finalise(true) // Push the state into the "original" slot
|
|
|
|
vmctx := BlockContext{
|
|
CanTransfer: func(StateDB, common.Address, *big.Int) bool { return true },
|
|
Transfer: func(StateDB, common.Address, common.Address, *big.Int) {},
|
|
}
|
|
vmenv := NewEVM(vmctx, TxContext{}, statedb, params.AllEthashProtocolChanges, Config{ExtraEips: []int{2200}})
|
|
|
|
_, gas, err := vmenv.Call(AccountRef(common.Address{}), address, nil, tt.gaspool, new(big.Int))
|
|
if 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.StateDB.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
|
|
minimumGas uint64
|
|
}{
|
|
// legacy create(0, 0, 0xc000) without 3860 used
|
|
{"0x61C00060006000f0" + "600052" + "60206000F3", false, 41237, 41237},
|
|
// legacy create(0, 0, 0xc000) _with_ 3860
|
|
{"0x61C00060006000f0" + "600052" + "60206000F3", true, 44309, 44309},
|
|
// create2(0, 0, 0xc001, 0) without 3860
|
|
{"0x600061C00160006000f5" + "600052" + "60206000F3", false, 50471, 50471},
|
|
// create2(0, 0, 0xc001, 0) (too large), with 3860
|
|
{"0x600061C00160006000f5" + "600052" + "60206000F3", true, 32012, 100_000},
|
|
// create2(0, 0, 0xc000, 0)
|
|
// This case is trying to deploy code at (within) the limit
|
|
{"0x600061C00060006000f5" + "600052" + "60206000F3", true, 53528, 53528},
|
|
// create2(0, 0, 0xc001, 0)
|
|
// This case is trying to deploy code exceeding the limit
|
|
{"0x600061C00160006000f5" + "600052" + "60206000F3", true, 32024, 100000},
|
|
}
|
|
|
|
func TestCreateGas(t *testing.T) {
|
|
for i, tt := range createGasTests {
|
|
var gasUsed = uint64(0)
|
|
doCheck := func(testGas int) bool {
|
|
address := common.BytesToAddress([]byte("contract"))
|
|
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
|
|
statedb.CreateAccount(address)
|
|
statedb.SetCode(address, hexutil.MustDecode(tt.code))
|
|
statedb.Finalise(true)
|
|
vmctx := BlockContext{
|
|
CanTransfer: func(StateDB, common.Address, *big.Int) bool { return true },
|
|
Transfer: func(StateDB, common.Address, common.Address, *big.Int) {},
|
|
BlockNumber: big.NewInt(0),
|
|
}
|
|
config := Config{}
|
|
if tt.eip3860 {
|
|
config.ExtraEips = []int{3860}
|
|
}
|
|
|
|
vmenv := NewEVM(vmctx, TxContext{}, statedb, params.AllEthashProtocolChanges, config)
|
|
var startGas = uint64(testGas)
|
|
ret, gas, err := vmenv.Call(AccountRef(common.Address{}), address, nil, startGas, new(big.Int))
|
|
if err != nil {
|
|
return false
|
|
}
|
|
gasUsed = startGas - gas
|
|
if len(ret) != 32 {
|
|
t.Fatalf("test %d: expected 32 bytes returned, have %d", i, len(ret))
|
|
}
|
|
if bytes.Equal(ret, make([]byte, 32)) {
|
|
// Failure
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
minGas := sort.Search(100_000, doCheck)
|
|
if uint64(minGas) != tt.minimumGas {
|
|
t.Fatalf("test %d: min gas error, want %d, have %d", i, tt.minimumGas, minGas)
|
|
}
|
|
// If the deployment succeeded, we also check the gas used
|
|
if minGas < 100_000 {
|
|
if gasUsed != tt.gasUsed {
|
|
t.Errorf("test %d: gas used mismatch: have %v, want %v", i, gasUsed, tt.gasUsed)
|
|
}
|
|
}
|
|
}
|
|
}
|