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