package v1
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import (
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"fmt"
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"os"
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"sort"
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"sync"
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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/stretchr/testify/require"
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dbm "github.com/tendermint/tm-db"
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abci "github.com/tendermint/tendermint/abci/types"
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cfg "github.com/tendermint/tendermint/config"
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"github.com/tendermint/tendermint/libs/log"
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"github.com/tendermint/tendermint/mempool/mock"
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"github.com/tendermint/tendermint/p2p"
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tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
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"github.com/tendermint/tendermint/proxy"
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sm "github.com/tendermint/tendermint/state"
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"github.com/tendermint/tendermint/store"
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"github.com/tendermint/tendermint/types"
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tmtime "github.com/tendermint/tendermint/types/time"
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)
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var config *cfg.Config
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func randGenesisDoc(numValidators int, randPower bool, minPower int64) (*types.GenesisDoc, []types.PrivValidator) {
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validators := make([]types.GenesisValidator, numValidators)
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privValidators := make([]types.PrivValidator, numValidators)
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for i := 0; i < numValidators; i++ {
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val, privVal := types.RandValidator(randPower, minPower)
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validators[i] = types.GenesisValidator{
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PubKey: val.PubKey,
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Power: val.VotingPower,
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}
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privValidators[i] = privVal
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}
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sort.Sort(types.PrivValidatorsByAddress(privValidators))
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return &types.GenesisDoc{
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GenesisTime: tmtime.Now(),
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ChainID: config.ChainID(),
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Validators: validators,
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}, privValidators
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}
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func makeVote(
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t *testing.T,
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header *types.Header,
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blockID types.BlockID,
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valset *types.ValidatorSet,
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privVal types.PrivValidator) *types.Vote {
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pubKey, err := privVal.GetPubKey()
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require.NoError(t, err)
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valIdx, _ := valset.GetByAddress(pubKey.Address())
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vote := &types.Vote{
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ValidatorAddress: pubKey.Address(),
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ValidatorIndex: valIdx,
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Height: header.Height,
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Round: 1,
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Timestamp: tmtime.Now(),
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Type: tmproto.PrecommitType,
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BlockID: blockID,
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}
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vpb := vote.ToProto()
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_ = privVal.SignVote(header.ChainID, vpb)
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vote.Signature = vpb.Signature
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return vote
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}
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type BlockchainReactorPair struct {
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bcR *BlockchainReactor
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conR *consensusReactorTest
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}
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func newBlockchainReactor(
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t *testing.T,
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logger log.Logger,
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genDoc *types.GenesisDoc,
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privVals []types.PrivValidator,
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maxBlockHeight int64) *BlockchainReactor {
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if len(privVals) != 1 {
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panic("only support one validator")
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}
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app := &testApp{}
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cc := proxy.NewLocalClientCreator(app)
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proxyApp := proxy.NewAppConns(cc)
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err := proxyApp.Start()
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if err != nil {
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panic(fmt.Errorf("error start app: %w", err))
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}
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blockDB := dbm.NewMemDB()
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stateDB := dbm.NewMemDB()
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stateStore := sm.NewStore(stateDB)
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blockStore := store.NewBlockStore(blockDB)
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state, err := stateStore.LoadFromDBOrGenesisDoc(genDoc)
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if err != nil {
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panic(fmt.Errorf("error constructing state from genesis file: %w", err))
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}
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// Make the BlockchainReactor itself.
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// NOTE we have to create and commit the blocks first because
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// pool.height is determined from the store.
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fastSync := true
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db := dbm.NewMemDB()
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stateStore = sm.NewStore(db)
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blockExec := sm.NewBlockExecutor(stateStore, log.TestingLogger(), proxyApp.Consensus(),
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mock.Mempool{}, sm.EmptyEvidencePool{})
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if err = stateStore.Save(state); err != nil {
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panic(err)
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}
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// let's add some blocks in
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for blockHeight := int64(1); blockHeight <= maxBlockHeight; blockHeight++ {
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lastCommit := types.NewCommit(blockHeight-1, 1, types.BlockID{}, nil)
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if blockHeight > 1 {
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lastBlockMeta := blockStore.LoadBlockMeta(blockHeight - 1)
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lastBlock := blockStore.LoadBlock(blockHeight - 1)
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vote := makeVote(t, &lastBlock.Header, lastBlockMeta.BlockID, state.Validators, privVals[0])
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lastCommit = types.NewCommit(vote.Height, vote.Round, lastBlockMeta.BlockID, []types.CommitSig{vote.CommitSig()})
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}
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thisBlock := makeBlock(blockHeight, state, lastCommit)
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thisParts := thisBlock.MakePartSet(types.BlockPartSizeBytes)
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blockID := types.BlockID{Hash: thisBlock.Hash(), PartSetHeader: thisParts.Header()}
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state, _, err = blockExec.ApplyBlock(state, blockID, thisBlock)
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if err != nil {
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panic(fmt.Errorf("error apply block: %w", err))
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}
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blockStore.SaveBlock(thisBlock, thisParts, lastCommit)
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}
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bcReactor := NewBlockchainReactor(state.Copy(), blockExec, blockStore, fastSync)
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bcReactor.SetLogger(logger.With("module", "blockchain"))
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return bcReactor
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}
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func newBlockchainReactorPair(
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t *testing.T,
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logger log.Logger,
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genDoc *types.GenesisDoc,
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privVals []types.PrivValidator,
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maxBlockHeight int64) BlockchainReactorPair {
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consensusReactor := &consensusReactorTest{}
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consensusReactor.BaseReactor = *p2p.NewBaseReactor("Consensus reactor", consensusReactor)
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return BlockchainReactorPair{
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newBlockchainReactor(t, logger, genDoc, privVals, maxBlockHeight),
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consensusReactor}
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}
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type consensusReactorTest struct {
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p2p.BaseReactor // BaseService + p2p.Switch
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switchedToConsensus bool
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mtx sync.Mutex
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}
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func (conR *consensusReactorTest) SwitchToConsensus(state sm.State, blocksSynced bool) {
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conR.mtx.Lock()
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defer conR.mtx.Unlock()
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conR.switchedToConsensus = true
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}
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func TestFastSyncNoBlockResponse(t *testing.T) {
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config = cfg.ResetTestRoot("blockchain_new_reactor_test")
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defer os.RemoveAll(config.RootDir)
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genDoc, privVals := randGenesisDoc(1, false, 30)
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maxBlockHeight := int64(65)
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reactorPairs := make([]BlockchainReactorPair, 2)
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logger := log.TestingLogger()
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reactorPairs[0] = newBlockchainReactorPair(t, logger, genDoc, privVals, maxBlockHeight)
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reactorPairs[1] = newBlockchainReactorPair(t, logger, genDoc, privVals, 0)
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p2p.MakeConnectedSwitches(config.P2P, 2, func(i int, s *p2p.Switch) *p2p.Switch {
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s.AddReactor("BLOCKCHAIN", reactorPairs[i].bcR)
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s.AddReactor("CONSENSUS", reactorPairs[i].conR)
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moduleName := fmt.Sprintf("blockchain-%v", i)
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reactorPairs[i].bcR.SetLogger(logger.With("module", moduleName))
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return s
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}, p2p.Connect2Switches)
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defer func() {
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for _, r := range reactorPairs {
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_ = r.bcR.Stop()
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_ = r.conR.Stop()
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}
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}()
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tests := []struct {
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height int64
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existent bool
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}{
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{maxBlockHeight + 2, false},
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{10, true},
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{1, true},
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{maxBlockHeight + 100, false},
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}
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for {
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time.Sleep(10 * time.Millisecond)
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reactorPairs[1].conR.mtx.Lock()
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if reactorPairs[1].conR.switchedToConsensus {
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reactorPairs[1].conR.mtx.Unlock()
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break
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}
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reactorPairs[1].conR.mtx.Unlock()
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}
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assert.Equal(t, maxBlockHeight, reactorPairs[0].bcR.store.Height())
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for _, tt := range tests {
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block := reactorPairs[1].bcR.store.LoadBlock(tt.height)
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if tt.existent {
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assert.True(t, block != nil)
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} else {
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assert.True(t, block == nil)
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}
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}
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}
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// NOTE: This is too hard to test without
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// an easy way to add test peer to switch
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// or without significant refactoring of the module.
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// Alternatively we could actually dial a TCP conn but
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// that seems extreme.
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func TestFastSyncBadBlockStopsPeer(t *testing.T) {
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numNodes := 4
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maxBlockHeight := int64(148)
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config = cfg.ResetTestRoot("blockchain_reactor_test")
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defer os.RemoveAll(config.RootDir)
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genDoc, privVals := randGenesisDoc(1, false, 30)
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otherChain := newBlockchainReactorPair(t, log.TestingLogger(), genDoc, privVals, maxBlockHeight)
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defer func() {
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_ = otherChain.bcR.Stop()
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_ = otherChain.conR.Stop()
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}()
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reactorPairs := make([]BlockchainReactorPair, numNodes)
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logger := make([]log.Logger, numNodes)
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for i := 0; i < numNodes; i++ {
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logger[i] = log.TestingLogger()
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height := int64(0)
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if i == 0 {
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height = maxBlockHeight
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}
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reactorPairs[i] = newBlockchainReactorPair(t, logger[i], genDoc, privVals, height)
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}
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switches := p2p.MakeConnectedSwitches(config.P2P, numNodes, func(i int, s *p2p.Switch) *p2p.Switch {
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reactorPairs[i].conR.mtx.Lock()
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s.AddReactor("BLOCKCHAIN", reactorPairs[i].bcR)
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s.AddReactor("CONSENSUS", reactorPairs[i].conR)
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moduleName := fmt.Sprintf("blockchain-%v", i)
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reactorPairs[i].bcR.SetLogger(logger[i].With("module", moduleName))
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reactorPairs[i].conR.mtx.Unlock()
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return s
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}, p2p.Connect2Switches)
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defer func() {
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for _, r := range reactorPairs {
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_ = r.bcR.Stop()
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_ = r.conR.Stop()
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}
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}()
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outerFor:
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for {
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time.Sleep(10 * time.Millisecond)
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for i := 0; i < numNodes; i++ {
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reactorPairs[i].conR.mtx.Lock()
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if !reactorPairs[i].conR.switchedToConsensus {
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reactorPairs[i].conR.mtx.Unlock()
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continue outerFor
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}
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reactorPairs[i].conR.mtx.Unlock()
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}
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break
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}
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// at this time, reactors[0-3] is the newest
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assert.Equal(t, numNodes-1, reactorPairs[1].bcR.Switch.Peers().Size())
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// mark last reactorPair as an invalid peer
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reactorPairs[numNodes-1].bcR.store = otherChain.bcR.store
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lastLogger := log.TestingLogger()
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lastReactorPair := newBlockchainReactorPair(t, lastLogger, genDoc, privVals, 0)
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reactorPairs = append(reactorPairs, lastReactorPair)
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switches = append(switches, p2p.MakeConnectedSwitches(config.P2P, 1, func(i int, s *p2p.Switch) *p2p.Switch {
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s.AddReactor("BLOCKCHAIN", reactorPairs[len(reactorPairs)-1].bcR)
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s.AddReactor("CONSENSUS", reactorPairs[len(reactorPairs)-1].conR)
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moduleName := fmt.Sprintf("blockchain-%v", len(reactorPairs)-1)
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reactorPairs[len(reactorPairs)-1].bcR.SetLogger(lastLogger.With("module", moduleName))
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return s
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}, p2p.Connect2Switches)...)
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for i := 0; i < len(reactorPairs)-1; i++ {
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p2p.Connect2Switches(switches, i, len(reactorPairs)-1)
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}
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for {
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time.Sleep(1 * time.Second)
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lastReactorPair.conR.mtx.Lock()
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if lastReactorPair.conR.switchedToConsensus {
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lastReactorPair.conR.mtx.Unlock()
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break
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}
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lastReactorPair.conR.mtx.Unlock()
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if lastReactorPair.bcR.Switch.Peers().Size() == 0 {
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break
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}
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}
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assert.True(t, lastReactorPair.bcR.Switch.Peers().Size() < len(reactorPairs)-1)
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}
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//----------------------------------------------
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// utility funcs
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func makeTxs(height int64) (txs []types.Tx) {
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for i := 0; i < 10; i++ {
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txs = append(txs, types.Tx([]byte{byte(height), byte(i)}))
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}
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return txs
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}
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func makeBlock(height int64, state sm.State, lastCommit *types.Commit) *types.Block {
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block, _ := state.MakeBlock(height, makeTxs(height), lastCommit, nil, state.Validators.GetProposer().Address)
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return block
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}
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type testApp struct {
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abci.BaseApplication
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}
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