mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-10-17 09:46:24 +00:00
217 lines
6.3 KiB
Go
217 lines
6.3 KiB
Go
package mempool
|
|
|
|
import (
|
|
"sort"
|
|
"testing"
|
|
|
|
"github.com/CityOfZion/neo-go/pkg/core/transaction"
|
|
"github.com/CityOfZion/neo-go/pkg/internal/random"
|
|
"github.com/CityOfZion/neo-go/pkg/util"
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
type FeerStub struct {
|
|
lowPriority bool
|
|
sysFee util.Fixed8
|
|
netFee util.Fixed8
|
|
perByteFee util.Fixed8
|
|
}
|
|
|
|
func (fs *FeerStub) NetworkFee(*transaction.Transaction) util.Fixed8 {
|
|
return fs.netFee
|
|
}
|
|
|
|
func (fs *FeerStub) IsLowPriority(*transaction.Transaction) bool {
|
|
return fs.lowPriority
|
|
}
|
|
|
|
func (fs *FeerStub) FeePerByte(*transaction.Transaction) util.Fixed8 {
|
|
return fs.perByteFee
|
|
}
|
|
|
|
func (fs *FeerStub) SystemFee(*transaction.Transaction) util.Fixed8 {
|
|
return fs.sysFee
|
|
}
|
|
|
|
func testMemPoolAddRemoveWithFeer(t *testing.T, fs Feer) {
|
|
mp := NewMemPool(10)
|
|
tx := newMinerTX(0)
|
|
_, ok := mp.TryGetValue(tx.Hash())
|
|
require.Equal(t, false, ok)
|
|
require.NoError(t, mp.Add(tx, fs))
|
|
// Re-adding should fail.
|
|
require.Error(t, mp.Add(tx, fs))
|
|
tx2, ok := mp.TryGetValue(tx.Hash())
|
|
require.Equal(t, true, ok)
|
|
require.Equal(t, tx, tx2)
|
|
mp.Remove(tx.Hash())
|
|
_, ok = mp.TryGetValue(tx.Hash())
|
|
require.Equal(t, false, ok)
|
|
// Make sure nothing left in the mempool after removal.
|
|
assert.Equal(t, 0, len(mp.verifiedMap))
|
|
assert.Equal(t, 0, len(mp.verifiedTxes))
|
|
}
|
|
|
|
func TestMemPoolAddRemove(t *testing.T) {
|
|
var fs = &FeerStub{lowPriority: false}
|
|
t.Run("low priority", func(t *testing.T) { testMemPoolAddRemoveWithFeer(t, fs) })
|
|
fs.lowPriority = true
|
|
t.Run("high priority", func(t *testing.T) { testMemPoolAddRemoveWithFeer(t, fs) })
|
|
}
|
|
|
|
func TestMemPoolVerify(t *testing.T) {
|
|
mp := NewMemPool(10)
|
|
tx := newMinerTX(1)
|
|
inhash1 := random.Uint256()
|
|
tx.Inputs = append(tx.Inputs, transaction.Input{PrevHash: inhash1, PrevIndex: 0})
|
|
require.Equal(t, true, mp.Verify(tx))
|
|
require.NoError(t, mp.Add(tx, &FeerStub{}))
|
|
|
|
tx2 := newMinerTX(2)
|
|
inhash2 := random.Uint256()
|
|
tx2.Inputs = append(tx2.Inputs, transaction.Input{PrevHash: inhash2, PrevIndex: 0})
|
|
require.Equal(t, true, mp.Verify(tx2))
|
|
require.NoError(t, mp.Add(tx2, &FeerStub{}))
|
|
|
|
tx3 := newMinerTX(3)
|
|
// Different index number, but the same PrevHash as in tx1.
|
|
tx3.Inputs = append(tx3.Inputs, transaction.Input{PrevHash: inhash1, PrevIndex: 1})
|
|
require.Equal(t, true, mp.Verify(tx3))
|
|
// The same input as in tx2.
|
|
tx3.Inputs = append(tx3.Inputs, transaction.Input{PrevHash: inhash2, PrevIndex: 0})
|
|
require.Equal(t, false, mp.Verify(tx3))
|
|
require.Error(t, mp.Add(tx3, &FeerStub{}))
|
|
}
|
|
|
|
func newMinerTX(i uint32) *transaction.Transaction {
|
|
return &transaction.Transaction{
|
|
Type: transaction.MinerType,
|
|
Data: &transaction.MinerTX{Nonce: i},
|
|
}
|
|
}
|
|
|
|
func TestOverCapacity(t *testing.T) {
|
|
var fs = &FeerStub{lowPriority: true}
|
|
const mempoolSize = 10
|
|
mp := NewMemPool(mempoolSize)
|
|
|
|
for i := 0; i < mempoolSize; i++ {
|
|
tx := newMinerTX(uint32(i))
|
|
require.NoError(t, mp.Add(tx, fs))
|
|
}
|
|
txcnt := uint32(mempoolSize)
|
|
require.Equal(t, mempoolSize, mp.Count())
|
|
require.Equal(t, true, sort.IsSorted(sort.Reverse(mp.verifiedTxes)))
|
|
|
|
// Claim TX has more priority than ordinary lowprio, so it should easily
|
|
// fit into the pool.
|
|
claim := &transaction.Transaction{
|
|
Type: transaction.ClaimType,
|
|
Data: &transaction.ClaimTX{},
|
|
}
|
|
require.NoError(t, mp.Add(claim, fs))
|
|
require.Equal(t, mempoolSize, mp.Count())
|
|
require.Equal(t, true, sort.IsSorted(sort.Reverse(mp.verifiedTxes)))
|
|
|
|
// Fees are also prioritized.
|
|
fs.netFee = util.Fixed8FromFloat(0.0001)
|
|
for i := 0; i < mempoolSize-1; i++ {
|
|
tx := newMinerTX(txcnt)
|
|
txcnt++
|
|
require.NoError(t, mp.Add(tx, fs))
|
|
require.Equal(t, mempoolSize, mp.Count())
|
|
require.Equal(t, true, sort.IsSorted(sort.Reverse(mp.verifiedTxes)))
|
|
}
|
|
// Less prioritized txes are not allowed anymore.
|
|
fs.netFee = util.Fixed8FromFloat(0.00001)
|
|
tx := newMinerTX(txcnt)
|
|
txcnt++
|
|
require.Error(t, mp.Add(tx, fs))
|
|
require.Equal(t, mempoolSize, mp.Count())
|
|
require.Equal(t, true, sort.IsSorted(sort.Reverse(mp.verifiedTxes)))
|
|
|
|
// But claim tx should still be there.
|
|
require.True(t, mp.ContainsKey(claim.Hash()))
|
|
|
|
// Low net fee, but higher per-byte fee is still a better combination.
|
|
fs.perByteFee = util.Fixed8FromFloat(0.001)
|
|
tx = newMinerTX(txcnt)
|
|
txcnt++
|
|
require.NoError(t, mp.Add(tx, fs))
|
|
require.Equal(t, mempoolSize, mp.Count())
|
|
require.Equal(t, true, sort.IsSorted(sort.Reverse(mp.verifiedTxes)))
|
|
|
|
// High priority always wins over low priority.
|
|
fs.lowPriority = false
|
|
for i := 0; i < mempoolSize; i++ {
|
|
tx := newMinerTX(txcnt)
|
|
txcnt++
|
|
require.NoError(t, mp.Add(tx, fs))
|
|
require.Equal(t, mempoolSize, mp.Count())
|
|
require.Equal(t, true, sort.IsSorted(sort.Reverse(mp.verifiedTxes)))
|
|
}
|
|
// Good luck with low priority now.
|
|
fs.lowPriority = true
|
|
tx = newMinerTX(txcnt)
|
|
require.Error(t, mp.Add(tx, fs))
|
|
require.Equal(t, mempoolSize, mp.Count())
|
|
require.Equal(t, true, sort.IsSorted(sort.Reverse(mp.verifiedTxes)))
|
|
}
|
|
|
|
func TestGetVerified(t *testing.T) {
|
|
var fs = &FeerStub{lowPriority: true}
|
|
const mempoolSize = 10
|
|
mp := NewMemPool(mempoolSize)
|
|
|
|
txes := make([]*transaction.Transaction, 0, mempoolSize)
|
|
for i := 0; i < mempoolSize; i++ {
|
|
tx := newMinerTX(uint32(i))
|
|
txes = append(txes, tx)
|
|
require.NoError(t, mp.Add(tx, fs))
|
|
}
|
|
require.Equal(t, mempoolSize, mp.Count())
|
|
verTxes := mp.GetVerifiedTransactions()
|
|
require.Equal(t, mempoolSize, len(verTxes))
|
|
for _, tx := range verTxes {
|
|
require.Contains(t, txes, tx)
|
|
}
|
|
for _, tx := range txes {
|
|
mp.Remove(tx.Hash())
|
|
}
|
|
verTxes = mp.GetVerifiedTransactions()
|
|
require.Equal(t, 0, len(verTxes))
|
|
}
|
|
|
|
func TestRemoveStale(t *testing.T) {
|
|
var fs = &FeerStub{lowPriority: true}
|
|
const mempoolSize = 10
|
|
mp := NewMemPool(mempoolSize)
|
|
|
|
txes1 := make([]*transaction.Transaction, 0, mempoolSize/2)
|
|
txes2 := make([]*transaction.Transaction, 0, mempoolSize/2)
|
|
for i := 0; i < mempoolSize; i++ {
|
|
tx := newMinerTX(uint32(i))
|
|
if i%2 == 0 {
|
|
txes1 = append(txes1, tx)
|
|
} else {
|
|
txes2 = append(txes2, tx)
|
|
}
|
|
require.NoError(t, mp.Add(tx, fs))
|
|
}
|
|
require.Equal(t, mempoolSize, mp.Count())
|
|
mp.RemoveStale(func(t *transaction.Transaction) bool {
|
|
for _, tx := range txes2 {
|
|
if tx == t {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
})
|
|
require.Equal(t, mempoolSize/2, mp.Count())
|
|
verTxes := mp.GetVerifiedTransactions()
|
|
for _, tx := range verTxes {
|
|
require.NotContains(t, txes1, tx)
|
|
require.Contains(t, txes2, tx)
|
|
}
|
|
}
|