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package v2
import (
"fmt"
"net"
"os"
"sort"
"sync"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
dbm "github.com/tendermint/tm-db"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/behaviour"
bc "github.com/tendermint/tendermint/blockchain"
cfg "github.com/tendermint/tendermint/config"
"github.com/tendermint/tendermint/libs/log"
"github.com/tendermint/tendermint/libs/service"
"github.com/tendermint/tendermint/mempool/mock"
"github.com/tendermint/tendermint/p2p"
"github.com/tendermint/tendermint/p2p/conn"
bcproto "github.com/tendermint/tendermint/proto/tendermint/blockchain"
"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"
)
type mockPeer struct {
service.Service
id p2p.ID
}
func (mp mockPeer) FlushStop() {}
func (mp mockPeer) ID() p2p.ID { return mp.id }
func (mp mockPeer) RemoteIP() net.IP { return net.IP{} }
func (mp mockPeer) RemoteAddr() net.Addr { return &net.TCPAddr{IP: mp.RemoteIP(), Port: 8800} }
func (mp mockPeer) IsOutbound() bool { return true }
func (mp mockPeer) IsPersistent() bool { return true }
func (mp mockPeer) CloseConn() error { return nil }
func (mp mockPeer) NodeInfo() p2p.NodeInfo {
return p2p.NodeInfo{
DefaultNodeID: "",
ListenAddr: "",
}
}
func (mp mockPeer) Status() conn.ConnectionStatus { return conn.ConnectionStatus{} }
func (mp mockPeer) SocketAddr() *p2p.NetAddress { return &p2p.NetAddress{} }
func (mp mockPeer) Send(byte, []byte) bool { return true }
func (mp mockPeer) TrySend(byte, []byte) bool { return true }
func (mp mockPeer) Set(string, interface{}) {}
func (mp mockPeer) Get(string) interface{} { return struct{}{} }
//nolint:unused
type mockBlockStore struct {
blocks map[int64]*types.Block
}
func (ml *mockBlockStore) Height() int64 {
return int64(len(ml.blocks))
}
func (ml *mockBlockStore) LoadBlock(height int64) *types.Block {
return ml.blocks[height]
}
func (ml *mockBlockStore) SaveBlock(block *types.Block, part *types.PartSet, commit *types.Commit) {
ml.blocks[block.Height] = block
}
type mockBlockApplier struct {
}
// XXX: Add whitelist/blacklist?
func (mba *mockBlockApplier) ApplyBlock(
state sm.State, blockID types.BlockID, block *types.Block,
) (sm.State, int64, error) {
state.LastBlockHeight++
return state, 0, nil
}
type mockSwitchIo struct {
mtx sync.Mutex
switchedToConsensus bool
numStatusResponse int
numBlockResponse int
numNoBlockResponse int
numStatusRequest int
}
var _ iIO = (*mockSwitchIo)(nil)
func (sio *mockSwitchIo) sendBlockRequest(_ p2p.Peer, _ int64) error {
return nil
}
func (sio *mockSwitchIo) sendStatusResponse(_, _ int64, _ p2p.Peer) error {
sio.mtx.Lock()
defer sio.mtx.Unlock()
sio.numStatusResponse++
return nil
}
func (sio *mockSwitchIo) sendBlockToPeer(_ *types.Block, _ p2p.Peer) error {
sio.mtx.Lock()
defer sio.mtx.Unlock()
sio.numBlockResponse++
return nil
}
func (sio *mockSwitchIo) sendBlockNotFound(_ int64, _ p2p.Peer) error {
sio.mtx.Lock()
defer sio.mtx.Unlock()
sio.numNoBlockResponse++
return nil
}
func (sio *mockSwitchIo) trySwitchToConsensus(_ sm.State, _ bool) bool {
sio.mtx.Lock()
defer sio.mtx.Unlock()
sio.switchedToConsensus = true
return true
}
func (sio *mockSwitchIo) broadcastStatusRequest() error {
return nil
}
func (sio *mockSwitchIo) sendStatusRequest(_ p2p.Peer) error {
sio.mtx.Lock()
defer sio.mtx.Unlock()
sio.numStatusRequest++
return nil
}
type testReactorParams struct {
logger log.Logger
genDoc *types.GenesisDoc
privVals []types.PrivValidator
startHeight int64
mockA bool
}
func newTestReactor(p testReactorParams) *BlockchainReactor {
store, state, _ := newReactorStore(p.genDoc, p.privVals, p.startHeight)
reporter := behaviour.NewMockReporter()
var appl blockApplier
if p.mockA {
appl = &mockBlockApplier{}
} else {
app := &testApp{}
cc := proxy.NewLocalClientCreator(app)
proxyApp := proxy.NewAppConns(cc)
err := proxyApp.Start()
if err != nil {
panic(fmt.Errorf("error start app: %w", err))
}
db := dbm.NewMemDB()
stateStore := sm.NewStore(db)
appl = sm.NewBlockExecutor(stateStore, p.logger, proxyApp.Consensus(), mock.Mempool{}, sm.EmptyEvidencePool{})
if err = stateStore.Save(state); err != nil {
panic(err)
}
}
r := newReactor(state, store, reporter, appl, true)
logger := log.TestingLogger()
r.SetLogger(logger.With("module", "blockchain"))
return r
}
// This test is left here and not deleted to retain the termination cases for
// future improvement in [#4482](https://github.com/tendermint/tendermint/issues/4482).
// func TestReactorTerminationScenarios(t *testing.T) {
// config := cfg.ResetTestRoot("blockchain_reactor_v2_test")
// defer os.RemoveAll(config.RootDir)
// genDoc, privVals := randGenesisDoc(config.ChainID(), 1, false, 30)
// refStore, _, _ := newReactorStore(genDoc, privVals, 20)
// params := testReactorParams{
// logger: log.TestingLogger(),
// genDoc: genDoc,
// privVals: privVals,
// startHeight: 10,
// bufferSize: 100,
// mockA: true,
// }
// type testEvent struct {
// evType string
// peer string
// height int64
// }
// tests := []struct {
// name string
// params testReactorParams
// msgs []testEvent
// }{
// {
// name: "simple termination on max peer height - one peer",
// params: params,
// msgs: []testEvent{
// {evType: "AddPeer", peer: "P1"},
// {evType: "ReceiveS", peer: "P1", height: 13},
// {evType: "BlockReq"},
// {evType: "ReceiveB", peer: "P1", height: 11},
// {evType: "BlockReq"},
// {evType: "BlockReq"},
// {evType: "ReceiveB", peer: "P1", height: 12},
// {evType: "Process"},
// {evType: "ReceiveB", peer: "P1", height: 13},
// {evType: "Process"},
// },
// },
// {
// name: "simple termination on max peer height - two peers",
// params: params,
// msgs: []testEvent{
// {evType: "AddPeer", peer: "P1"},
// {evType: "AddPeer", peer: "P2"},
// {evType: "ReceiveS", peer: "P1", height: 13},
// {evType: "ReceiveS", peer: "P2", height: 15},
// {evType: "BlockReq"},
// {evType: "BlockReq"},
// {evType: "ReceiveB", peer: "P1", height: 11},
// {evType: "ReceiveB", peer: "P2", height: 12},
// {evType: "Process"},
// {evType: "BlockReq"},
// {evType: "BlockReq"},
// {evType: "ReceiveB", peer: "P1", height: 13},
// {evType: "Process"},
// {evType: "ReceiveB", peer: "P2", height: 14},
// {evType: "Process"},
// {evType: "BlockReq"},
// {evType: "ReceiveB", peer: "P2", height: 15},
// {evType: "Process"},
// },
// },
// {
// name: "termination on max peer height - two peers, noBlock error",
// params: params,
// msgs: []testEvent{
// {evType: "AddPeer", peer: "P1"},
// {evType: "AddPeer", peer: "P2"},
// {evType: "ReceiveS", peer: "P1", height: 13},
// {evType: "ReceiveS", peer: "P2", height: 15},
// {evType: "BlockReq"},
// {evType: "BlockReq"},
// {evType: "ReceiveNB", peer: "P1", height: 11},
// {evType: "BlockReq"},
// {evType: "ReceiveB", peer: "P2", height: 12},
// {evType: "ReceiveB", peer: "P2", height: 11},
// {evType: "Process"},
// {evType: "BlockReq"},
// {evType: "BlockReq"},
// {evType: "ReceiveB", peer: "P2", height: 13},
// {evType: "Process"},
// {evType: "ReceiveB", peer: "P2", height: 14},
// {evType: "Process"},
// {evType: "BlockReq"},
// {evType: "ReceiveB", peer: "P2", height: 15},
// {evType: "Process"},
// },
// },
// {
// name: "termination on max peer height - two peers, remove one peer",
// params: params,
// msgs: []testEvent{
// {evType: "AddPeer", peer: "P1"},
// {evType: "AddPeer", peer: "P2"},
// {evType: "ReceiveS", peer: "P1", height: 13},
// {evType: "ReceiveS", peer: "P2", height: 15},
// {evType: "BlockReq"},
// {evType: "BlockReq"},
// {evType: "RemovePeer", peer: "P1"},
// {evType: "BlockReq"},
// {evType: "ReceiveB", peer: "P2", height: 12},
// {evType: "ReceiveB", peer: "P2", height: 11},
// {evType: "Process"},
// {evType: "BlockReq"},
// {evType: "BlockReq"},
// {evType: "ReceiveB", peer: "P2", height: 13},
// {evType: "Process"},
// {evType: "ReceiveB", peer: "P2", height: 14},
// {evType: "Process"},
// {evType: "BlockReq"},
// {evType: "ReceiveB", peer: "P2", height: 15},
// {evType: "Process"},
// },
// },
// }
// for _, tt := range tests {
// tt := tt
// t.Run(tt.name, func(t *testing.T) {
// reactor := newTestReactor(params)
// reactor.Start()
// reactor.reporter = behaviour.NewMockReporter()
// mockSwitch := &mockSwitchIo{switchedToConsensus: false}
// reactor.io = mockSwitch
// // time for go routines to start
// time.Sleep(time.Millisecond)
// for _, step := range tt.msgs {
// switch step.evType {
// case "AddPeer":
// reactor.scheduler.send(bcAddNewPeer{peerID: p2p.ID(step.peer)})
// case "RemovePeer":
// reactor.scheduler.send(bcRemovePeer{peerID: p2p.ID(step.peer)})
// case "ReceiveS":
// reactor.scheduler.send(bcStatusResponse{
// peerID: p2p.ID(step.peer),
// height: step.height,
// time: time.Now(),
// })
// case "ReceiveB":
// reactor.scheduler.send(bcBlockResponse{
// peerID: p2p.ID(step.peer),
// block: refStore.LoadBlock(step.height),
// size: 10,
// time: time.Now(),
// })
// case "ReceiveNB":
// reactor.scheduler.send(bcNoBlockResponse{
// peerID: p2p.ID(step.peer),
// height: step.height,
// time: time.Now(),
// })
// case "BlockReq":
// reactor.scheduler.send(rTrySchedule{time: time.Now()})
// case "Process":
// reactor.processor.send(rProcessBlock{})
// }
// // give time for messages to propagate between routines
// time.Sleep(time.Millisecond)
// }
// // time for processor to finish and reactor to switch to consensus
// time.Sleep(20 * time.Millisecond)
// assert.True(t, mockSwitch.hasSwitchedToConsensus())
// reactor.Stop()
// })
// }
// }
func TestReactorHelperMode(t *testing.T) {
var (
channelID = byte(0x40)
)
config := cfg.ResetTestRoot("blockchain_reactor_v2_test")
defer os.RemoveAll(config.RootDir)
genDoc, privVals := randGenesisDoc(config.ChainID(), 1, false, 30)
params := testReactorParams{
logger: log.TestingLogger(),
genDoc: genDoc,
privVals: privVals,
startHeight: 20,
mockA: true,
}
type testEvent struct {
peer string
event interface{}
}
tests := []struct {
name string
params testReactorParams
msgs []testEvent
}{
{
name: "status request",
params: params,
msgs: []testEvent{
{"P1", bcproto.StatusRequest{}},
{"P1", bcproto.BlockRequest{Height: 13}},
{"P1", bcproto.BlockRequest{Height: 20}},
{"P1", bcproto.BlockRequest{Height: 22}},
},
},
}
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
reactor := newTestReactor(params)
mockSwitch := &mockSwitchIo{switchedToConsensus: false}
reactor.io = mockSwitch
err := reactor.Start()
require.NoError(t, err)
for i := 0; i < len(tt.msgs); i++ {
step := tt.msgs[i]
switch ev := step.event.(type) {
case bcproto.StatusRequest:
old := mockSwitch.numStatusResponse
msg, err := bc.EncodeMsg(&ev)
assert.NoError(t, err)
reactor.Receive(channelID, mockPeer{id: p2p.ID(step.peer)}, msg)
assert.Equal(t, old+1, mockSwitch.numStatusResponse)
case bcproto.BlockRequest:
if ev.Height > params.startHeight {
old := mockSwitch.numNoBlockResponse
msg, err := bc.EncodeMsg(&ev)
assert.NoError(t, err)
reactor.Receive(channelID, mockPeer{id: p2p.ID(step.peer)}, msg)
assert.Equal(t, old+1, mockSwitch.numNoBlockResponse)
} else {
old := mockSwitch.numBlockResponse
msg, err := bc.EncodeMsg(&ev)
assert.NoError(t, err)
assert.NoError(t, err)
reactor.Receive(channelID, mockPeer{id: p2p.ID(step.peer)}, msg)
assert.Equal(t, old+1, mockSwitch.numBlockResponse)
}
}
}
err = reactor.Stop()
require.NoError(t, err)
})
}
}
func TestReactorSetSwitchNil(t *testing.T) {
config := cfg.ResetTestRoot("blockchain_reactor_v2_test")
defer os.RemoveAll(config.RootDir)
genDoc, privVals := randGenesisDoc(config.ChainID(), 1, false, 30)
reactor := newTestReactor(testReactorParams{
logger: log.TestingLogger(),
genDoc: genDoc,
privVals: privVals,
})
reactor.SetSwitch(nil)
assert.Nil(t, reactor.Switch)
assert.Nil(t, reactor.io)
}
//----------------------------------------------
// 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
}
func randGenesisDoc(chainID string, 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: chainID,
Validators: validators,
}, privValidators
}
// Why are we importing the entire blockExecutor dependency graph here
// when we have the facilities to
func newReactorStore(
genDoc *types.GenesisDoc,
privVals []types.PrivValidator,
maxBlockHeight int64) (*store.BlockStore, sm.State, *sm.BlockExecutor) {
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(fmt.Errorf("error start app: %w", err))
}
stateDB := dbm.NewMemDB()
blockStore := store.NewBlockStore(dbm.NewMemDB())
stateStore := sm.NewStore(stateDB)
state, err := stateStore.LoadFromDBOrGenesisDoc(genDoc)
if err != nil {
panic(fmt.Errorf("error constructing state from genesis file: %w", err))
}
db := dbm.NewMemDB()
stateStore = sm.NewStore(db)
blockExec := sm.NewBlockExecutor(stateStore, log.TestingLogger(), proxyApp.Consensus(),
mock.Mempool{}, sm.EmptyEvidencePool{})
if err = stateStore.Save(state); err != nil {
panic(err)
}
// add blocks in
for blockHeight := int64(1); blockHeight <= maxBlockHeight; blockHeight++ {
lastCommit := types.NewCommit(blockHeight-1, 0, types.BlockID{}, nil)
if blockHeight > 1 {
lastBlockMeta := blockStore.LoadBlockMeta(blockHeight - 1)
lastBlock := blockStore.LoadBlock(blockHeight - 1)
vote, err := types.MakeVote(
lastBlock.Header.Height,
lastBlockMeta.BlockID,
state.Validators,
privVals[0],
lastBlock.Header.ChainID,
time.Now(),
)
if err != nil {
panic(err)
}
lastCommit = types.NewCommit(vote.Height, vote.Round,
lastBlockMeta.BlockID, []types.CommitSig{vote.CommitSig()})
}
thisBlock := makeBlock(blockHeight, state, lastCommit)
thisParts := thisBlock.MakePartSet(types.BlockPartSizeBytes)
blockID := types.BlockID{Hash: thisBlock.Hash(), PartSetHeader: thisParts.Header()}
state, _, err = blockExec.ApplyBlock(state, blockID, thisBlock)
if err != nil {
panic(fmt.Errorf("error apply block: %w", err))
}
blockStore.SaveBlock(thisBlock, thisParts, lastCommit)
}
return blockStore, state, blockExec
}