forked from TrueCloudLab/neoneo-go
d6bd6b6888
It can be used to attack the network (amplifying DOS), so it's broken
beyond repair. This reverts ac601601c1.
See also neo-project/neo#2560 and neo-project/neo#2561.
54 lines
2.2 KiB
Go
54 lines
2.2 KiB
Go
package core
|
|
|
|
import (
|
|
"math/big"
|
|
"testing"
|
|
|
|
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
|
|
"github.com/nspcc-dev/neo-go/pkg/util"
|
|
"github.com/nspcc-dev/neo-go/pkg/vm"
|
|
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestGAS_Roundtrip(t *testing.T) {
|
|
bc := newTestChain(t)
|
|
|
|
getUtilityTokenBalance := func(bc *Blockchain, acc util.Uint160) (*big.Int, uint32) {
|
|
lub, err := bc.GetNEP17LastUpdated(acc)
|
|
require.NoError(t, err)
|
|
return bc.GetUtilityTokenBalance(acc), lub[bc.contracts.GAS.ID]
|
|
}
|
|
|
|
initialBalance, _ := getUtilityTokenBalance(bc, neoOwner)
|
|
require.NotNil(t, initialBalance)
|
|
|
|
t.Run("bad: amount > initial balance", func(t *testing.T) {
|
|
tx := transferTokenFromMultisigAccountWithAssert(t, bc, neoOwner, bc.contracts.GAS.Hash, initialBalance.Int64()+1, false)
|
|
aer, err := bc.GetAppExecResults(tx.Hash(), trigger.Application)
|
|
require.NoError(t, err)
|
|
require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].FaultException) // transfer without assert => HALT state
|
|
checkResult(t, &aer[0], stackitem.NewBool(false))
|
|
require.Len(t, aer[0].Events, 0) // failed transfer => no events
|
|
// check balance and height were not changed
|
|
updatedBalance, updatedHeight := getUtilityTokenBalance(bc, neoOwner)
|
|
initialBalance.Sub(initialBalance, big.NewInt(tx.SystemFee+tx.NetworkFee))
|
|
require.Equal(t, initialBalance, updatedBalance)
|
|
require.Equal(t, bc.BlockHeight(), updatedHeight)
|
|
})
|
|
|
|
t.Run("good: amount < initial balance", func(t *testing.T) {
|
|
amount := initialBalance.Int64() - 10_00000000
|
|
tx := transferTokenFromMultisigAccountWithAssert(t, bc, neoOwner, bc.contracts.GAS.Hash, amount, false)
|
|
aer, err := bc.GetAppExecResults(tx.Hash(), trigger.Application)
|
|
require.NoError(t, err)
|
|
require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].FaultException)
|
|
checkResult(t, &aer[0], stackitem.NewBool(true))
|
|
require.Len(t, aer[0].Events, 1) // roundtrip
|
|
// check balance wasn't changed and height was updated
|
|
updatedBalance, updatedHeight := getUtilityTokenBalance(bc, neoOwner)
|
|
initialBalance.Sub(initialBalance, big.NewInt(tx.SystemFee+tx.NetworkFee))
|
|
require.Equal(t, initialBalance, updatedBalance)
|
|
require.Equal(t, bc.BlockHeight(), updatedHeight)
|
|
})
|
|
}
|