package mempool
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import (
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"crypto/rand"
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"encoding/binary"
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"testing"
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"time"
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"github.com/tendermint/abci/example/counter"
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"github.com/tendermint/abci/example/dummy"
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"github.com/tendermint/tmlibs/log"
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cfg "github.com/tendermint/tendermint/config"
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"github.com/tendermint/tendermint/proxy"
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"github.com/tendermint/tendermint/types"
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)
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func newMempoolWithApp(cc proxy.ClientCreator) *Mempool {
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config := cfg.ResetTestRoot("mempool_test")
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appConnMem, _ := cc.NewABCIClient()
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appConnMem.SetLogger(log.TestingLogger().With("module", "abci-client", "connection", "mempool"))
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_, err := appConnMem.Start()
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if err != nil {
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panic(err)
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}
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mempool := NewMempool(config.Mempool, appConnMem, 0)
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mempool.SetLogger(log.TestingLogger())
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return mempool
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}
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func ensureNoFire(t *testing.T, ch <-chan int, timeoutMS int) {
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timer := time.NewTimer(time.Duration(timeoutMS) * time.Millisecond)
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select {
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case <-ch:
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t.Fatal("Expected not to fire")
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case <-timer.C:
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}
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}
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func ensureFire(t *testing.T, ch <-chan int, timeoutMS int) {
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timer := time.NewTimer(time.Duration(timeoutMS) * time.Millisecond)
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select {
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case <-ch:
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case <-timer.C:
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t.Fatal("Expected to fire")
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}
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}
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func checkTxs(t *testing.T, mempool *Mempool, count int) types.Txs {
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txs := make(types.Txs, count)
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for i := 0; i < count; i++ {
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txBytes := make([]byte, 20)
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txs[i] = txBytes
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_, err := rand.Read(txBytes)
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if err != nil {
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t.Error(err)
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}
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if err := mempool.CheckTx(txBytes, nil); err != nil {
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t.Fatal("Error after CheckTx: %v", err)
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}
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}
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return txs
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}
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func TestTxsAvailable(t *testing.T) {
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app := dummy.NewDummyApplication()
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cc := proxy.NewLocalClientCreator(app)
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mempool := newMempoolWithApp(cc)
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mempool.EnableTxsAvailable()
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timeoutMS := 500
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// with no txs, it shouldnt fire
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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// send a bunch of txs, it should only fire once
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txs := checkTxs(t, mempool, 100)
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ensureFire(t, mempool.TxsAvailable(), timeoutMS)
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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// call update with half the txs.
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// it should fire once now for the new height
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// since there are still txs left
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committedTxs, txs := txs[:50], txs[50:]
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if err := mempool.Update(1, committedTxs); err != nil {
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t.Error(err)
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}
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ensureFire(t, mempool.TxsAvailable(), timeoutMS)
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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// send a bunch more txs. we already fired for this height so it shouldnt fire again
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moreTxs := checkTxs(t, mempool, 50)
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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// now call update with all the txs. it should not fire as there are no txs left
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committedTxs = append(txs, moreTxs...)
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if err := mempool.Update(2, committedTxs); err != nil {
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t.Error(err)
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}
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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// send a bunch more txs, it should only fire once
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checkTxs(t, mempool, 100)
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ensureFire(t, mempool.TxsAvailable(), timeoutMS)
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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}
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func TestSerialReap(t *testing.T) {
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app := counter.NewCounterApplication(true)
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app.SetOption("serial", "on")
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cc := proxy.NewLocalClientCreator(app)
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mempool := newMempoolWithApp(cc)
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appConnCon, _ := cc.NewABCIClient()
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appConnCon.SetLogger(log.TestingLogger().With("module", "abci-client", "connection", "consensus"))
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if _, err := appConnCon.Start(); err != nil {
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t.Fatalf("Error starting ABCI client: %v", err.Error())
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}
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deliverTxsRange := func(start, end int) {
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// Deliver some txs.
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for i := start; i < end; i++ {
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// This will succeed
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txBytes := make([]byte, 8)
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binary.BigEndian.PutUint64(txBytes, uint64(i))
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err := mempool.CheckTx(txBytes, nil)
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if err != nil {
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t.Fatal("Error after CheckTx: %v", err)
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}
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// This will fail because not serial (incrementing)
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// However, error should still be nil.
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// It just won't show up on Reap().
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err = mempool.CheckTx(txBytes, nil)
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if err != nil {
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t.Fatal("Error after CheckTx: %v", err)
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}
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}
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}
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reapCheck := func(exp int) {
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txs := mempool.Reap(-1)
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if len(txs) != exp {
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t.Fatalf("Expected to reap %v txs but got %v", exp, len(txs))
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}
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}
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updateRange := func(start, end int) {
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txs := make([]types.Tx, 0)
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for i := start; i < end; i++ {
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txBytes := make([]byte, 8)
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binary.BigEndian.PutUint64(txBytes, uint64(i))
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txs = append(txs, txBytes)
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}
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if err := mempool.Update(0, txs); err != nil {
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t.Error(err)
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}
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}
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commitRange := func(start, end int) {
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// Deliver some txs.
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for i := start; i < end; i++ {
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txBytes := make([]byte, 8)
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binary.BigEndian.PutUint64(txBytes, uint64(i))
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res := appConnCon.DeliverTxSync(txBytes)
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if !res.IsOK() {
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t.Errorf("Error committing tx. Code:%v result:%X log:%v",
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res.Code, res.Data, res.Log)
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}
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}
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res := appConnCon.CommitSync()
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if len(res.Data) != 8 {
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t.Errorf("Error committing. Hash:%X log:%v", res.Data, res.Log)
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}
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}
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//----------------------------------------
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// Deliver some txs.
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deliverTxsRange(0, 100)
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// Reap the txs.
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reapCheck(100)
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// Reap again. We should get the same amount
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reapCheck(100)
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// Deliver 0 to 999, we should reap 900 new txs
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// because 100 were already counted.
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deliverTxsRange(0, 1000)
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// Reap the txs.
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reapCheck(1000)
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// Reap again. We should get the same amount
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reapCheck(1000)
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// Commit from the conensus AppConn
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commitRange(0, 500)
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updateRange(0, 500)
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// We should have 500 left.
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reapCheck(500)
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// Deliver 100 invalid txs and 100 valid txs
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deliverTxsRange(900, 1100)
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// We should have 600 now.
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reapCheck(600)
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}
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