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578 lines
15 KiB
578 lines
15 KiB
package mempool
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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"math/rand"
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"os"
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"sort"
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"strconv"
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"strings"
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"sync"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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abciclient "github.com/tendermint/tendermint/abci/client"
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"github.com/tendermint/tendermint/abci/example/code"
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"github.com/tendermint/tendermint/abci/example/kvstore"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/tendermint/tendermint/config"
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"github.com/tendermint/tendermint/libs/log"
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"github.com/tendermint/tendermint/types"
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)
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// application extends the KV store application by overriding CheckTx to provide
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// transaction priority based on the value in the key/value pair.
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type application struct {
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*kvstore.Application
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}
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type testTx struct {
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tx types.Tx
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priority int64
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}
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func (app *application) CheckTx(req abci.RequestCheckTx) abci.ResponseCheckTx {
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var (
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priority int64
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sender string
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)
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// infer the priority from the raw transaction value (sender=key=value)
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parts := bytes.Split(req.Tx, []byte("="))
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if len(parts) == 3 {
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v, err := strconv.ParseInt(string(parts[2]), 10, 64)
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if err != nil {
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return abci.ResponseCheckTx{
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Priority: priority,
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Code: 100,
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GasWanted: 1,
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}
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}
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priority = v
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sender = string(parts[0])
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} else {
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return abci.ResponseCheckTx{
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Priority: priority,
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Code: 101,
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GasWanted: 1,
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}
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}
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return abci.ResponseCheckTx{
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Priority: priority,
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Sender: sender,
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Code: code.CodeTypeOK,
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GasWanted: 1,
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}
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}
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func setup(ctx context.Context, t testing.TB, cacheSize int, options ...TxMempoolOption) *TxMempool {
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t.Helper()
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var cancel context.CancelFunc
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ctx, cancel = context.WithCancel(ctx)
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app := &application{kvstore.NewApplication()}
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cc := abciclient.NewLocalCreator(app)
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logger := log.TestingLogger()
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cfg, err := config.ResetTestRoot(t.TempDir(), strings.ReplaceAll(t.Name(), "/", "|"))
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require.NoError(t, err)
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cfg.Mempool.CacheSize = cacheSize
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appConnMem, err := cc(logger)
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require.NoError(t, err)
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require.NoError(t, appConnMem.Start(ctx))
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t.Cleanup(func() {
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os.RemoveAll(cfg.RootDir)
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cancel()
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appConnMem.Wait()
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})
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return NewTxMempool(logger.With("test", t.Name()), cfg.Mempool, appConnMem, 0, options...)
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}
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func checkTxs(ctx context.Context, t *testing.T, txmp *TxMempool, numTxs int, peerID uint16) []testTx {
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t.Helper()
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txs := make([]testTx, numTxs)
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txInfo := TxInfo{SenderID: peerID}
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rng := rand.New(rand.NewSource(time.Now().UnixNano()))
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for i := 0; i < numTxs; i++ {
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prefix := make([]byte, 20)
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_, err := rng.Read(prefix)
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require.NoError(t, err)
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priority := int64(rng.Intn(9999-1000) + 1000)
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txs[i] = testTx{
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tx: []byte(fmt.Sprintf("sender-%d-%d=%X=%d", i, peerID, prefix, priority)),
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priority: priority,
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}
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require.NoError(t, txmp.CheckTx(ctx, txs[i].tx, nil, txInfo))
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}
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return txs
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}
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func convertTex(in []testTx) types.Txs {
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out := make([]types.Tx, len(in))
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for idx := range in {
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out[idx] = in[idx].tx
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}
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return out
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}
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func TestTxMempool_TxsAvailable(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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txmp := setup(ctx, t, 0)
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txmp.EnableTxsAvailable()
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ensureNoTxFire := func() {
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timer := time.NewTimer(500 * time.Millisecond)
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select {
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case <-txmp.TxsAvailable():
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require.Fail(t, "unexpected transactions event")
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case <-timer.C:
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}
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}
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ensureTxFire := func() {
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timer := time.NewTimer(500 * time.Millisecond)
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select {
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case <-txmp.TxsAvailable():
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case <-timer.C:
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require.Fail(t, "expected transactions event")
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}
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}
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// ensure no event as we have not executed any transactions yet
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ensureNoTxFire()
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// Execute CheckTx for some transactions and ensure TxsAvailable only fires
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// once.
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txs := checkTxs(ctx, t, txmp, 100, 0)
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ensureTxFire()
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ensureNoTxFire()
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rawTxs := make([]types.Tx, len(txs))
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for i, tx := range txs {
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rawTxs[i] = tx.tx
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}
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responses := make([]*abci.ExecTxResult, len(rawTxs[:50]))
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for i := 0; i < len(responses); i++ {
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responses[i] = &abci.ExecTxResult{Code: abci.CodeTypeOK}
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}
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// commit half the transactions and ensure we fire an event
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txmp.Lock()
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require.NoError(t, txmp.Update(ctx, 1, rawTxs[:50], responses, nil, nil))
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txmp.Unlock()
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ensureTxFire()
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ensureNoTxFire()
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// Execute CheckTx for more transactions and ensure we do not fire another
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// event as we're still on the same height (1).
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_ = checkTxs(ctx, t, txmp, 100, 0)
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ensureNoTxFire()
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}
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func TestTxMempool_Size(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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txmp := setup(ctx, t, 0)
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txs := checkTxs(ctx, t, txmp, 100, 0)
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require.Equal(t, len(txs), txmp.Size())
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require.Equal(t, int64(5690), txmp.SizeBytes())
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rawTxs := make([]types.Tx, len(txs))
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for i, tx := range txs {
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rawTxs[i] = tx.tx
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}
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responses := make([]*abci.ExecTxResult, len(rawTxs[:50]))
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for i := 0; i < len(responses); i++ {
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responses[i] = &abci.ExecTxResult{Code: abci.CodeTypeOK}
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}
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txmp.Lock()
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require.NoError(t, txmp.Update(ctx, 1, rawTxs[:50], responses, nil, nil))
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txmp.Unlock()
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require.Equal(t, len(rawTxs)/2, txmp.Size())
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require.Equal(t, int64(2850), txmp.SizeBytes())
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}
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func TestTxMempool_Flush(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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txmp := setup(ctx, t, 0)
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txs := checkTxs(ctx, t, txmp, 100, 0)
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require.Equal(t, len(txs), txmp.Size())
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require.Equal(t, int64(5690), txmp.SizeBytes())
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rawTxs := make([]types.Tx, len(txs))
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for i, tx := range txs {
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rawTxs[i] = tx.tx
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}
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responses := make([]*abci.ExecTxResult, len(rawTxs[:50]))
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for i := 0; i < len(responses); i++ {
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responses[i] = &abci.ExecTxResult{Code: abci.CodeTypeOK}
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}
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txmp.Lock()
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require.NoError(t, txmp.Update(ctx, 1, rawTxs[:50], responses, nil, nil))
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txmp.Unlock()
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txmp.Flush()
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require.Zero(t, txmp.Size())
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require.Equal(t, int64(0), txmp.SizeBytes())
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}
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func TestTxMempool_ReapMaxBytesMaxGas(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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txmp := setup(ctx, t, 0)
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tTxs := checkTxs(ctx, t, txmp, 100, 0) // all txs request 1 gas unit
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require.Equal(t, len(tTxs), txmp.Size())
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require.Equal(t, int64(5690), txmp.SizeBytes())
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txMap := make(map[types.TxKey]testTx)
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priorities := make([]int64, len(tTxs))
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for i, tTx := range tTxs {
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txMap[tTx.tx.Key()] = tTx
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priorities[i] = tTx.priority
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}
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sort.Slice(priorities, func(i, j int) bool {
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// sort by priority, i.e. decreasing order
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return priorities[i] > priorities[j]
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})
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ensurePrioritized := func(reapedTxs types.Txs) {
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reapedPriorities := make([]int64, len(reapedTxs))
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for i, rTx := range reapedTxs {
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reapedPriorities[i] = txMap[rTx.Key()].priority
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}
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require.Equal(t, priorities[:len(reapedPriorities)], reapedPriorities)
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}
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// reap by gas capacity only
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reapedTxs := txmp.ReapMaxBytesMaxGas(-1, 50)
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ensurePrioritized(reapedTxs)
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require.Equal(t, len(tTxs), txmp.Size())
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require.Equal(t, int64(5690), txmp.SizeBytes())
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require.Len(t, reapedTxs, 50)
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// reap by transaction bytes only
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reapedTxs = txmp.ReapMaxBytesMaxGas(1000, -1)
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ensurePrioritized(reapedTxs)
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require.Equal(t, len(tTxs), txmp.Size())
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require.Equal(t, int64(5690), txmp.SizeBytes())
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require.GreaterOrEqual(t, len(reapedTxs), 16)
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// Reap by both transaction bytes and gas, where the size yields 31 reaped
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// transactions and the gas limit reaps 25 transactions.
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reapedTxs = txmp.ReapMaxBytesMaxGas(1500, 30)
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ensurePrioritized(reapedTxs)
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require.Equal(t, len(tTxs), txmp.Size())
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require.Equal(t, int64(5690), txmp.SizeBytes())
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require.Len(t, reapedTxs, 25)
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}
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func TestTxMempool_ReapMaxTxs(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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txmp := setup(ctx, t, 0)
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tTxs := checkTxs(ctx, t, txmp, 100, 0)
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require.Equal(t, len(tTxs), txmp.Size())
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require.Equal(t, int64(5690), txmp.SizeBytes())
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txMap := make(map[types.TxKey]testTx)
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priorities := make([]int64, len(tTxs))
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for i, tTx := range tTxs {
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txMap[tTx.tx.Key()] = tTx
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priorities[i] = tTx.priority
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}
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sort.Slice(priorities, func(i, j int) bool {
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// sort by priority, i.e. decreasing order
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return priorities[i] > priorities[j]
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})
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ensurePrioritized := func(reapedTxs types.Txs) {
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reapedPriorities := make([]int64, len(reapedTxs))
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for i, rTx := range reapedTxs {
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reapedPriorities[i] = txMap[rTx.Key()].priority
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}
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require.Equal(t, priorities[:len(reapedPriorities)], reapedPriorities)
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}
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// reap all transactions
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reapedTxs := txmp.ReapMaxTxs(-1)
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ensurePrioritized(reapedTxs)
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require.Equal(t, len(tTxs), txmp.Size())
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require.Equal(t, int64(5690), txmp.SizeBytes())
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require.Len(t, reapedTxs, len(tTxs))
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// reap a single transaction
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reapedTxs = txmp.ReapMaxTxs(1)
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ensurePrioritized(reapedTxs)
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require.Equal(t, len(tTxs), txmp.Size())
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require.Equal(t, int64(5690), txmp.SizeBytes())
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require.Len(t, reapedTxs, 1)
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// reap half of the transactions
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reapedTxs = txmp.ReapMaxTxs(len(tTxs) / 2)
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ensurePrioritized(reapedTxs)
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require.Equal(t, len(tTxs), txmp.Size())
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require.Equal(t, int64(5690), txmp.SizeBytes())
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require.Len(t, reapedTxs, len(tTxs)/2)
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}
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func TestTxMempool_CheckTxExceedsMaxSize(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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txmp := setup(ctx, t, 0)
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rng := rand.New(rand.NewSource(time.Now().UnixNano()))
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tx := make([]byte, txmp.config.MaxTxBytes+1)
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_, err := rng.Read(tx)
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require.NoError(t, err)
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require.Error(t, txmp.CheckTx(ctx, tx, nil, TxInfo{SenderID: 0}))
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tx = make([]byte, txmp.config.MaxTxBytes-1)
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_, err = rng.Read(tx)
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require.NoError(t, err)
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require.NoError(t, txmp.CheckTx(ctx, tx, nil, TxInfo{SenderID: 0}))
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}
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func TestTxMempool_CheckTxSamePeer(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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txmp := setup(ctx, t, 100)
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peerID := uint16(1)
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rng := rand.New(rand.NewSource(time.Now().UnixNano()))
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prefix := make([]byte, 20)
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_, err := rng.Read(prefix)
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require.NoError(t, err)
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tx := []byte(fmt.Sprintf("sender-0=%X=%d", prefix, 50))
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require.NoError(t, txmp.CheckTx(ctx, tx, nil, TxInfo{SenderID: peerID}))
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require.Error(t, txmp.CheckTx(ctx, tx, nil, TxInfo{SenderID: peerID}))
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}
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func TestTxMempool_CheckTxSameSender(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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txmp := setup(ctx, t, 100)
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peerID := uint16(1)
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rng := rand.New(rand.NewSource(time.Now().UnixNano()))
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prefix1 := make([]byte, 20)
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_, err := rng.Read(prefix1)
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require.NoError(t, err)
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prefix2 := make([]byte, 20)
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_, err = rng.Read(prefix2)
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require.NoError(t, err)
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tx1 := []byte(fmt.Sprintf("sender-0=%X=%d", prefix1, 50))
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tx2 := []byte(fmt.Sprintf("sender-0=%X=%d", prefix2, 50))
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require.NoError(t, txmp.CheckTx(ctx, tx1, nil, TxInfo{SenderID: peerID}))
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require.Equal(t, 1, txmp.Size())
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require.NoError(t, txmp.CheckTx(ctx, tx2, nil, TxInfo{SenderID: peerID}))
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require.Equal(t, 1, txmp.Size())
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}
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func TestTxMempool_ConcurrentTxs(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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txmp := setup(ctx, t, 100)
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rng := rand.New(rand.NewSource(time.Now().UnixNano()))
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checkTxDone := make(chan struct{})
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var wg sync.WaitGroup
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wg.Add(1)
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go func() {
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for i := 0; i < 20; i++ {
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_ = checkTxs(ctx, t, txmp, 100, 0)
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dur := rng.Intn(1000-500) + 500
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time.Sleep(time.Duration(dur) * time.Millisecond)
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}
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wg.Done()
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close(checkTxDone)
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}()
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wg.Add(1)
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go func() {
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ticker := time.NewTicker(time.Second)
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defer ticker.Stop()
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defer wg.Done()
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var height int64 = 1
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for range ticker.C {
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reapedTxs := txmp.ReapMaxTxs(200)
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if len(reapedTxs) > 0 {
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responses := make([]*abci.ExecTxResult, len(reapedTxs))
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for i := 0; i < len(responses); i++ {
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var code uint32
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if i%10 == 0 {
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code = 100
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} else {
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code = abci.CodeTypeOK
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}
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responses[i] = &abci.ExecTxResult{Code: code}
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}
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txmp.Lock()
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require.NoError(t, txmp.Update(ctx, height, reapedTxs, responses, nil, nil))
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txmp.Unlock()
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height++
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} else {
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// only return once we know we finished the CheckTx loop
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select {
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case <-checkTxDone:
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return
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default:
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}
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}
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}
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}()
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wg.Wait()
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require.Zero(t, txmp.Size())
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require.Zero(t, txmp.SizeBytes())
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}
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func TestTxMempool_ExpiredTxs_NumBlocks(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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txmp := setup(ctx, t, 500)
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txmp.height = 100
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txmp.config.TTLNumBlocks = 10
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tTxs := checkTxs(ctx, t, txmp, 100, 0)
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require.Equal(t, len(tTxs), txmp.Size())
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require.Equal(t, 100, txmp.heightIndex.Size())
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// reap 5 txs at the next height -- no txs should expire
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reapedTxs := txmp.ReapMaxTxs(5)
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responses := make([]*abci.ExecTxResult, len(reapedTxs))
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for i := 0; i < len(responses); i++ {
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responses[i] = &abci.ExecTxResult{Code: abci.CodeTypeOK}
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}
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txmp.Lock()
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require.NoError(t, txmp.Update(ctx, txmp.height+1, reapedTxs, responses, nil, nil))
|
|
txmp.Unlock()
|
|
|
|
require.Equal(t, 95, txmp.Size())
|
|
require.Equal(t, 95, txmp.heightIndex.Size())
|
|
|
|
// check more txs at height 101
|
|
_ = checkTxs(ctx, t, txmp, 50, 1)
|
|
require.Equal(t, 145, txmp.Size())
|
|
require.Equal(t, 145, txmp.heightIndex.Size())
|
|
|
|
// Reap 5 txs at a height that would expire all the transactions from before
|
|
// the previous Update (height 100).
|
|
//
|
|
// NOTE: When we reap txs below, we do not know if we're picking txs from the
|
|
// initial CheckTx calls or from the second round of CheckTx calls. Thus, we
|
|
// cannot guarantee that all 95 txs are remaining that should be expired and
|
|
// removed. However, we do know that that at most 95 txs can be expired and
|
|
// removed.
|
|
reapedTxs = txmp.ReapMaxTxs(5)
|
|
responses = make([]*abci.ExecTxResult, len(reapedTxs))
|
|
for i := 0; i < len(responses); i++ {
|
|
responses[i] = &abci.ExecTxResult{Code: abci.CodeTypeOK}
|
|
}
|
|
|
|
txmp.Lock()
|
|
require.NoError(t, txmp.Update(ctx, txmp.height+10, reapedTxs, responses, nil, nil))
|
|
txmp.Unlock()
|
|
|
|
require.GreaterOrEqual(t, txmp.Size(), 45)
|
|
require.GreaterOrEqual(t, txmp.heightIndex.Size(), 45)
|
|
}
|
|
|
|
func TestTxMempool_CheckTxPostCheckError(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
cases := []struct {
|
|
name string
|
|
err error
|
|
}{
|
|
{
|
|
name: "error",
|
|
err: errors.New("test error"),
|
|
},
|
|
{
|
|
name: "no error",
|
|
err: nil,
|
|
},
|
|
}
|
|
for _, tc := range cases {
|
|
testCase := tc
|
|
t.Run(testCase.name, func(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(ctx)
|
|
defer cancel()
|
|
|
|
postCheckFn := func(_ types.Tx, _ *abci.ResponseCheckTx) error {
|
|
return testCase.err
|
|
}
|
|
txmp := setup(ctx, t, 0, WithPostCheck(postCheckFn))
|
|
rng := rand.New(rand.NewSource(time.Now().UnixNano()))
|
|
tx := make([]byte, txmp.config.MaxTxBytes-1)
|
|
_, err := rng.Read(tx)
|
|
require.NoError(t, err)
|
|
|
|
callback := func(res *abci.ResponseCheckTx) {
|
|
expectedErrString := ""
|
|
if testCase.err != nil {
|
|
expectedErrString = testCase.err.Error()
|
|
}
|
|
require.Equal(t, expectedErrString, res.MempoolError)
|
|
}
|
|
require.NoError(t, txmp.CheckTx(ctx, tx, callback, TxInfo{SenderID: 0}))
|
|
})
|
|
}
|
|
}
|