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242 lines
7.7 KiB
242 lines
7.7 KiB
package consensus
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import (
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"encoding/binary"
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"fmt"
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"os"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/tendermint/tendermint/abci/example/code"
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abci "github.com/tendermint/tendermint/abci/types"
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sm "github.com/tendermint/tendermint/state"
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"github.com/tendermint/tendermint/types"
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)
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// for testing
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func assertMempool(txn txNotifier) sm.Mempool {
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return txn.(sm.Mempool)
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}
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func TestMempoolNoProgressUntilTxsAvailable(t *testing.T) {
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config := ResetConfig("consensus_mempool_txs_available_test")
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defer os.RemoveAll(config.RootDir)
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config.Consensus.CreateEmptyBlocks = false
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state, privVals := randGenesisState(1, false, 10)
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cs := newConsensusStateWithConfig(config, state, privVals[0], NewCounterApplication())
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assertMempool(cs.txNotifier).EnableTxsAvailable()
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height, round := cs.Height, cs.Round
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newBlockCh := subscribe(cs.eventBus, types.EventQueryNewBlock)
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startTestRound(cs, height, round)
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ensureNewEventOnChannel(newBlockCh) // first block gets committed
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ensureNoNewEventOnChannel(newBlockCh)
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deliverTxsRange(cs, 0, 1)
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ensureNewEventOnChannel(newBlockCh) // commit txs
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ensureNewEventOnChannel(newBlockCh) // commit updated app hash
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ensureNoNewEventOnChannel(newBlockCh)
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}
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func TestMempoolProgressAfterCreateEmptyBlocksInterval(t *testing.T) {
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config := ResetConfig("consensus_mempool_txs_available_test")
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defer os.RemoveAll(config.RootDir)
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config.Consensus.CreateEmptyBlocksInterval = ensureTimeout
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state, privVals := randGenesisState(1, false, 10)
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cs := newConsensusStateWithConfig(config, state, privVals[0], NewCounterApplication())
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assertMempool(cs.txNotifier).EnableTxsAvailable()
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height, round := cs.Height, cs.Round
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newBlockCh := subscribe(cs.eventBus, types.EventQueryNewBlock)
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startTestRound(cs, height, round)
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ensureNewEventOnChannel(newBlockCh) // first block gets committed
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ensureNoNewEventOnChannel(newBlockCh) // then we dont make a block ...
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ensureNewEventOnChannel(newBlockCh) // until the CreateEmptyBlocksInterval has passed
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}
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func TestMempoolProgressInHigherRound(t *testing.T) {
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config := ResetConfig("consensus_mempool_txs_available_test")
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defer os.RemoveAll(config.RootDir)
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config.Consensus.CreateEmptyBlocks = false
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state, privVals := randGenesisState(1, false, 10)
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cs := newConsensusStateWithConfig(config, state, privVals[0], NewCounterApplication())
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assertMempool(cs.txNotifier).EnableTxsAvailable()
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height, round := cs.Height, cs.Round
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newBlockCh := subscribe(cs.eventBus, types.EventQueryNewBlock)
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newRoundCh := subscribe(cs.eventBus, types.EventQueryNewRound)
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timeoutCh := subscribe(cs.eventBus, types.EventQueryTimeoutPropose)
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cs.setProposal = func(proposal *types.Proposal) error {
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if cs.Height == 2 && cs.Round == 0 {
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// dont set the proposal in round 0 so we timeout and
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// go to next round
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cs.Logger.Info("Ignoring set proposal at height 2, round 0")
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return nil
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}
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return cs.defaultSetProposal(proposal)
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}
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startTestRound(cs, height, round)
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ensureNewRound(newRoundCh, height, round) // first round at first height
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ensureNewEventOnChannel(newBlockCh) // first block gets committed
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height = height + 1 // moving to the next height
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round = 0
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ensureNewRound(newRoundCh, height, round) // first round at next height
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deliverTxsRange(cs, 0, 1) // we deliver txs, but dont set a proposal so we get the next round
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ensureNewTimeout(timeoutCh, height, round, cs.config.TimeoutPropose.Nanoseconds())
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round = round + 1 // moving to the next round
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ensureNewRound(newRoundCh, height, round) // wait for the next round
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ensureNewEventOnChannel(newBlockCh) // now we can commit the block
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}
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func deliverTxsRange(cs *ConsensusState, 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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err := assertMempool(cs.txNotifier).CheckTx(txBytes, nil)
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if err != nil {
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panic(fmt.Sprintf("Error after CheckTx: %v", err))
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}
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}
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}
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func TestMempoolTxConcurrentWithCommit(t *testing.T) {
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state, privVals := randGenesisState(1, false, 10)
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cs := newConsensusState(state, privVals[0], NewCounterApplication())
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height, round := cs.Height, cs.Round
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newBlockCh := subscribe(cs.eventBus, types.EventQueryNewBlock)
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NTxs := 3000
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go deliverTxsRange(cs, 0, NTxs)
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startTestRound(cs, height, round)
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for nTxs := 0; nTxs < NTxs; {
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ticker := time.NewTicker(time.Second * 30)
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select {
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case msg := <-newBlockCh:
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blockEvent := msg.Data().(types.EventDataNewBlock)
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nTxs += int(blockEvent.Block.Header.NumTxs)
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case <-ticker.C:
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panic("Timed out waiting to commit blocks with transactions")
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}
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}
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}
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func TestMempoolRmBadTx(t *testing.T) {
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state, privVals := randGenesisState(1, false, 10)
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app := NewCounterApplication()
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cs := newConsensusState(state, privVals[0], app)
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// increment the counter by 1
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txBytes := make([]byte, 8)
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binary.BigEndian.PutUint64(txBytes, uint64(0))
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resDeliver := app.DeliverTx(txBytes)
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assert.False(t, resDeliver.IsErr(), fmt.Sprintf("expected no error. got %v", resDeliver))
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resCommit := app.Commit()
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assert.True(t, len(resCommit.Data) > 0)
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emptyMempoolCh := make(chan struct{})
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checkTxRespCh := make(chan struct{})
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go func() {
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// Try to send the tx through the mempool.
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// CheckTx should not err, but the app should return a bad abci code
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// and the tx should get removed from the pool
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err := assertMempool(cs.txNotifier).CheckTx(txBytes, func(r *abci.Response) {
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if r.GetCheckTx().Code != code.CodeTypeBadNonce {
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t.Fatalf("expected checktx to return bad nonce, got %v", r)
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}
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checkTxRespCh <- struct{}{}
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})
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if err != nil {
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t.Fatalf("Error after CheckTx: %v", err)
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}
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// check for the tx
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for {
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txs := assertMempool(cs.txNotifier).ReapMaxBytesMaxGas(int64(len(txBytes)), -1)
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if len(txs) == 0 {
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emptyMempoolCh <- struct{}{}
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return
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}
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time.Sleep(10 * time.Millisecond)
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}
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}()
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// Wait until the tx returns
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ticker := time.After(time.Second * 5)
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select {
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case <-checkTxRespCh:
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// success
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case <-ticker:
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t.Fatalf("Timed out waiting for tx to return")
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}
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// Wait until the tx is removed
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ticker = time.After(time.Second * 5)
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select {
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case <-emptyMempoolCh:
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// success
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case <-ticker:
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t.Fatalf("Timed out waiting for tx to be removed")
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}
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}
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// CounterApplication that maintains a mempool state and resets it upon commit
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type CounterApplication struct {
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abci.BaseApplication
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txCount int
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mempoolTxCount int
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}
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func NewCounterApplication() *CounterApplication {
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return &CounterApplication{}
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}
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func (app *CounterApplication) Info(req abci.RequestInfo) abci.ResponseInfo {
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return abci.ResponseInfo{Data: fmt.Sprintf("txs:%v", app.txCount)}
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}
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func (app *CounterApplication) DeliverTx(tx []byte) abci.ResponseDeliverTx {
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txValue := txAsUint64(tx)
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if txValue != uint64(app.txCount) {
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return abci.ResponseDeliverTx{
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Code: code.CodeTypeBadNonce,
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Log: fmt.Sprintf("Invalid nonce. Expected %v, got %v", app.txCount, txValue)}
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}
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app.txCount++
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return abci.ResponseDeliverTx{Code: code.CodeTypeOK}
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}
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func (app *CounterApplication) CheckTx(tx []byte) abci.ResponseCheckTx {
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txValue := txAsUint64(tx)
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if txValue != uint64(app.mempoolTxCount) {
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return abci.ResponseCheckTx{
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Code: code.CodeTypeBadNonce,
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Log: fmt.Sprintf("Invalid nonce. Expected %v, got %v", app.mempoolTxCount, txValue)}
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}
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app.mempoolTxCount++
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return abci.ResponseCheckTx{Code: code.CodeTypeOK}
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}
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func txAsUint64(tx []byte) uint64 {
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tx8 := make([]byte, 8)
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copy(tx8[len(tx8)-len(tx):], tx)
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return binary.BigEndian.Uint64(tx8)
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}
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func (app *CounterApplication) Commit() abci.ResponseCommit {
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app.mempoolTxCount = app.txCount
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if app.txCount == 0 {
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return abci.ResponseCommit{}
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}
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hash := make([]byte, 8)
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binary.BigEndian.PutUint64(hash, uint64(app.txCount))
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return abci.ResponseCommit{Data: hash}
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}
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