77 lines
2.2 KiB
Go
77 lines
2.2 KiB
Go
// Copyright 2021 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 (
|
|
"math"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/state"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
"github.com/holiman/uint256"
|
|
)
|
|
|
|
var loopInterruptTests = []string{
|
|
// infinite loop using JUMP: push(2) jumpdest dup1 jump
|
|
"60025b8056",
|
|
// infinite loop using JUMPI: push(1) push(4) jumpdest dup2 dup2 jumpi
|
|
"600160045b818157",
|
|
}
|
|
|
|
func TestLoopInterrupt(t *testing.T) {
|
|
address := common.BytesToAddress([]byte("contract"))
|
|
vmctx := BlockContext{
|
|
Transfer: func(StateDB, common.Address, common.Address, *uint256.Int) {},
|
|
}
|
|
|
|
for i, tt := range loopInterruptTests {
|
|
statedb, _ := state.New(types.EmptyRootHash, state.NewDatabaseForTesting())
|
|
statedb.CreateAccount(address)
|
|
statedb.SetCode(address, common.Hex2Bytes(tt))
|
|
statedb.Finalise(true)
|
|
|
|
evm := NewEVM(vmctx, TxContext{}, statedb, params.AllEthashProtocolChanges, Config{})
|
|
|
|
errChannel := make(chan error)
|
|
timeout := make(chan bool)
|
|
|
|
go func(evm *EVM) {
|
|
_, _, err := evm.Call(AccountRef(common.Address{}), address, nil, math.MaxUint64, new(uint256.Int))
|
|
errChannel <- err
|
|
}(evm)
|
|
|
|
go func() {
|
|
<-time.After(time.Second)
|
|
timeout <- true
|
|
}()
|
|
|
|
evm.Cancel()
|
|
|
|
select {
|
|
case <-timeout:
|
|
t.Errorf("test %d timed out", i)
|
|
case err := <-errChannel:
|
|
if err != nil {
|
|
t.Errorf("test %d failure: %v", i, err)
|
|
}
|
|
}
|
|
}
|
|
}
|