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// Copyright 2015 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 core
import (
"crypto/ecdsa"
"math/big"
"testing"
"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/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
)
func transaction(nonce uint64, gaslimit *big.Int, key *ecdsa.PrivateKey) *types.Transaction {
tx, _ := types.NewTransaction(nonce, common.Address{}, big.NewInt(100), gaslimit, big.NewInt(1), nil).SignECDSA(key)
return tx
}
func setupTxPool() (*TxPool, *ecdsa.PrivateKey) {
db, _ := ethdb.NewMemDatabase()
statedb := state.New(common.Hash{}, db)
var m event.TypeMux
key, _ := crypto.GenerateKey()
return NewTxPool(&m, func() *state.StateDB { return statedb }, func() *big.Int { return big.NewInt(1000000) }), key
}
func TestInvalidTransactions(t *testing.T) {
pool, key := setupTxPool()
tx := transaction(0, big.NewInt(100), key)
if err := pool.Add(tx); err != ErrNonExistentAccount {
t.Error("expected", ErrNonExistentAccount)
}
from, _ := tx.From()
pool.currentState().AddBalance(from, big.NewInt(1))
if err := pool.Add(tx); err != ErrInsufficientFunds {
t.Error("expected", ErrInsufficientFunds)
}
balance := new(big.Int).Add(tx.Value(), new(big.Int).Mul(tx.Gas(), tx.GasPrice()))
pool.currentState().AddBalance(from, balance)
if err := pool.Add(tx); err != ErrIntrinsicGas {
t.Error("expected", ErrIntrinsicGas, "got", err)
}
pool.currentState().SetNonce(from, 1)
pool.currentState().AddBalance(from, big.NewInt(0xffffffffffffff))
tx = transaction(0, big.NewInt(100000), key)
if err := pool.Add(tx); err != ErrNonce {
t.Error("expected", ErrNonce)
}
}
func TestTransactionQueue(t *testing.T) {
pool, key := setupTxPool()
tx := transaction(0, big.NewInt(100), key)
from, _ := tx.From()
pool.currentState().AddBalance(from, big.NewInt(1))
pool.queueTx(tx.Hash(), tx)
pool.checkQueue()
if len(pool.pending) != 1 {
t.Error("expected valid txs to be 1 is", len(pool.pending))
}
tx = transaction(1, big.NewInt(100), key)
from, _ = tx.From()
pool.currentState().SetNonce(from, 2)
pool.queueTx(tx.Hash(), tx)
pool.checkQueue()
if _, ok := pool.pending[tx.Hash()]; ok {
t.Error("expected transaction to be in tx pool")
}
if len(pool.queue[from]) > 0 {
t.Error("expected transaction queue to be empty. is", len(pool.queue[from]))
}
pool, key = setupTxPool()
tx1 := transaction(0, big.NewInt(100), key)
tx2 := transaction(10, big.NewInt(100), key)
tx3 := transaction(11, big.NewInt(100), key)
pool.queueTx(tx1.Hash(), tx1)
pool.queueTx(tx2.Hash(), tx2)
pool.queueTx(tx3.Hash(), tx3)
from, _ = tx1.From()
pool.checkQueue()
if len(pool.pending) != 1 {
t.Error("expected tx pool to be 1 =")
}
if len(pool.queue[from]) != 2 {
t.Error("expected len(queue) == 2, got", len(pool.queue[from]))
}
}
func TestRemoveTx(t *testing.T) {
pool, key := setupTxPool()
tx := transaction(0, big.NewInt(100), key)
from, _ := tx.From()
pool.currentState().AddBalance(from, big.NewInt(1))
pool.queueTx(tx.Hash(), tx)
pool.addTx(tx.Hash(), from, tx)
if len(pool.queue) != 1 {
t.Error("expected queue to be 1, got", len(pool.queue))
}
if len(pool.pending) != 1 {
t.Error("expected txs to be 1, got", len(pool.pending))
}
pool.RemoveTx(tx.Hash())
if len(pool.queue) > 0 {
t.Error("expected queue to be 0, got", len(pool.queue))
}
if len(pool.pending) > 0 {
t.Error("expected txs to be 0, got", len(pool.pending))
}
}
func TestNegativeValue(t *testing.T) {
pool, key := setupTxPool()
tx, _ := types.NewTransaction(0, common.Address{}, big.NewInt(-1), big.NewInt(100), big.NewInt(1), nil).SignECDSA(key)
from, _ := tx.From()
pool.currentState().AddBalance(from, big.NewInt(1))
if err := pool.Add(tx); err != ErrNegativeValue {
t.Error("expected", ErrNegativeValue, "got", err)
}
}
func TestTransactionChainFork(t *testing.T) {
pool, key := setupTxPool()
addr := crypto.PubkeyToAddress(key.PublicKey)
resetState := func() {
db, _ := ethdb.NewMemDatabase()
statedb := state.New(common.Hash{}, db)
pool.currentState = func() *state.StateDB { return statedb }
pool.currentState().AddBalance(addr, big.NewInt(100000000000000))
pool.resetState()
}
resetState()
tx := transaction(0, big.NewInt(100000), key)
if err := pool.add(tx); err != nil {
t.Error("didn't expect error", err)
}
pool.RemoveTransactions([]*types.Transaction{tx})
// reset the pool's internal state
resetState()
if err := pool.add(tx); err != nil {
t.Error("didn't expect error", err)
}
}
func TestTransactionDoubleNonce(t *testing.T) {
pool, key := setupTxPool()
addr := crypto.PubkeyToAddress(key.PublicKey)
resetState := func() {
db, _ := ethdb.NewMemDatabase()
statedb := state.New(common.Hash{}, db)
pool.currentState = func() *state.StateDB { return statedb }
pool.currentState().AddBalance(addr, big.NewInt(100000000000000))
pool.resetState()
}
resetState()
tx := transaction(0, big.NewInt(100000), key)
tx2 := transaction(0, big.NewInt(1000000), key)
if err := pool.add(tx); err != nil {
t.Error("didn't expect error", err)
}
if err := pool.add(tx2); err != nil {
t.Error("didn't expect error", err)
}
pool.checkQueue()
if len(pool.pending) != 2 {
t.Error("expected 2 pending txs. Got", len(pool.pending))
}
}
func TestMissingNonce(t *testing.T) {
pool, key := setupTxPool()
addr := crypto.PubkeyToAddress(key.PublicKey)
pool.currentState().AddBalance(addr, big.NewInt(100000000000000))
tx := transaction(1, big.NewInt(100000), key)
if err := pool.add(tx); err != nil {
t.Error("didn't expect error", err)
}
if len(pool.pending) != 0 {
t.Error("expected 0 pending transactions, got", len(pool.pending))
}
if len(pool.queue[addr]) != 1 {
t.Error("expected 1 queued transaction, got", len(pool.queue[addr]))
}
}
func TestNonceRecovery(t *testing.T) {
const n = 10
pool, key := setupTxPool()
addr := crypto.PubkeyToAddress(key.PublicKey)
pool.currentState().SetNonce(addr, n)
pool.currentState().AddBalance(addr, big.NewInt(100000000000000))
pool.resetState()
tx := transaction(n, big.NewInt(100000), key)
if err := pool.Add(tx); err != nil {
t.Error(err)
}
// simulate some weird re-order of transactions and missing nonce(s)
pool.currentState().SetNonce(addr, n-1)
pool.resetState()
if fn := pool.pendingState.GetNonce(addr); fn != n+1 {
t.Errorf("expected nonce to be %d, got %d", n+1, fn)
}
}
func TestRemovedTxEvent(t *testing.T) {
pool, key := setupTxPool()
tx := transaction(0, big.NewInt(1000000), key)
from, _ := tx.From()
pool.currentState().AddBalance(from, big.NewInt(1000000000000))
pool.eventMux.Post(RemovedTransactionEvent{types.Transactions{tx}})
pool.eventMux.Post(ChainHeadEvent{nil})
if len(pool.pending) != 1 {
t.Error("expected 1 pending tx, got", len(pool.pending))
}
}
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