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709 lines
20 KiB
709 lines
20 KiB
package consensus
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import (
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"context"
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"fmt"
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"os"
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"path"
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"sync"
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"testing"
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"time"
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"github.com/fortytw2/leaktest"
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"github.com/stretchr/testify/mock"
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"github.com/stretchr/testify/require"
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abcicli "github.com/tendermint/tendermint/abci/client"
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"github.com/tendermint/tendermint/abci/example/kvstore"
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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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cryptoenc "github.com/tendermint/tendermint/crypto/encoding"
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"github.com/tendermint/tendermint/internal/test/factory"
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"github.com/tendermint/tendermint/libs/log"
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tmsync "github.com/tendermint/tendermint/libs/sync"
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mempl "github.com/tendermint/tendermint/mempool"
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"github.com/tendermint/tendermint/p2p"
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"github.com/tendermint/tendermint/p2p/p2ptest"
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tmcons "github.com/tendermint/tendermint/proto/tendermint/consensus"
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sm "github.com/tendermint/tendermint/state"
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statemocks "github.com/tendermint/tendermint/state/mocks"
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"github.com/tendermint/tendermint/store"
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"github.com/tendermint/tendermint/types"
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dbm "github.com/tendermint/tm-db"
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)
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var (
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defaultTestTime = time.Date(2019, 1, 1, 0, 0, 0, 0, time.UTC)
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)
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type reactorTestSuite struct {
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network *p2ptest.Network
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states map[p2p.NodeID]*State
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reactors map[p2p.NodeID]*Reactor
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subs map[p2p.NodeID]types.Subscription
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stateChannels map[p2p.NodeID]*p2p.Channel
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dataChannels map[p2p.NodeID]*p2p.Channel
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voteChannels map[p2p.NodeID]*p2p.Channel
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voteSetBitsChannels map[p2p.NodeID]*p2p.Channel
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}
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func chDesc(chID p2p.ChannelID) p2p.ChannelDescriptor {
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return p2p.ChannelDescriptor{
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ID: byte(chID),
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}
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}
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func setup(t *testing.T, numNodes int, states []*State, size int) *reactorTestSuite {
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t.Helper()
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rts := &reactorTestSuite{
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network: p2ptest.MakeNetwork(t, p2ptest.NetworkOptions{NumNodes: numNodes}),
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states: make(map[p2p.NodeID]*State),
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reactors: make(map[p2p.NodeID]*Reactor, numNodes),
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subs: make(map[p2p.NodeID]types.Subscription, numNodes),
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}
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rts.stateChannels = rts.network.MakeChannelsNoCleanup(t, chDesc(StateChannel), new(tmcons.Message), size)
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rts.dataChannels = rts.network.MakeChannelsNoCleanup(t, chDesc(DataChannel), new(tmcons.Message), size)
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rts.voteChannels = rts.network.MakeChannelsNoCleanup(t, chDesc(VoteChannel), new(tmcons.Message), size)
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rts.voteSetBitsChannels = rts.network.MakeChannelsNoCleanup(t, chDesc(VoteSetBitsChannel), new(tmcons.Message), size)
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i := 0
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for nodeID, node := range rts.network.Nodes {
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state := states[i]
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reactor := NewReactor(
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state.Logger.With("node", nodeID),
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state,
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rts.stateChannels[nodeID],
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rts.dataChannels[nodeID],
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rts.voteChannels[nodeID],
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rts.voteSetBitsChannels[nodeID],
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node.MakePeerUpdates(t),
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true,
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)
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reactor.SetEventBus(state.eventBus)
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blocksSub, err := state.eventBus.Subscribe(context.Background(), testSubscriber, types.EventQueryNewBlock, size)
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require.NoError(t, err)
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rts.states[nodeID] = state
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rts.subs[nodeID] = blocksSub
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rts.reactors[nodeID] = reactor
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// simulate handle initChain in handshake
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if state.state.LastBlockHeight == 0 {
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require.NoError(t, state.blockExec.Store().Save(state.state))
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}
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require.NoError(t, reactor.Start())
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require.True(t, reactor.IsRunning())
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i++
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}
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require.Len(t, rts.reactors, numNodes)
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// start the in-memory network and connect all peers with each other
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rts.network.Start(t)
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t.Cleanup(func() {
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for nodeID, r := range rts.reactors {
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require.NoError(t, rts.states[nodeID].eventBus.Stop())
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require.NoError(t, r.Stop())
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require.False(t, r.IsRunning())
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}
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leaktest.Check(t)
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})
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return rts
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}
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func validateBlock(block *types.Block, activeVals map[string]struct{}) error {
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if block.LastCommit.Size() != len(activeVals) {
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return fmt.Errorf(
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"commit size doesn't match number of active validators. Got %d, expected %d",
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block.LastCommit.Size(), len(activeVals),
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)
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}
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for _, commitSig := range block.LastCommit.Signatures {
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if _, ok := activeVals[string(commitSig.ValidatorAddress)]; !ok {
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return fmt.Errorf("found vote for inactive validator %X", commitSig.ValidatorAddress)
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}
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}
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return nil
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}
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func waitForAndValidateBlock(
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t *testing.T,
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n int,
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activeVals map[string]struct{},
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blocksSubs []types.Subscription,
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states []*State,
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txs ...[]byte,
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) {
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fn := func(j int) {
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msg := <-blocksSubs[j].Out()
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newBlock := msg.Data().(types.EventDataNewBlock).Block
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require.NoError(t, validateBlock(newBlock, activeVals))
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for _, tx := range txs {
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require.NoError(t, assertMempool(states[j].txNotifier).CheckTx(tx, nil, mempl.TxInfo{}))
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}
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}
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var wg sync.WaitGroup
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wg.Add(n)
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for i := 0; i < n; i++ {
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go func(j int) {
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fn(j)
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wg.Done()
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}(i)
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}
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wg.Wait()
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}
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func waitForAndValidateBlockWithTx(
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t *testing.T,
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n int,
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activeVals map[string]struct{},
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blocksSubs []types.Subscription,
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states []*State,
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txs ...[]byte,
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) {
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fn := func(j int) {
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ntxs := 0
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BLOCK_TX_LOOP:
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for {
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msg := <-blocksSubs[j].Out()
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newBlock := msg.Data().(types.EventDataNewBlock).Block
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require.NoError(t, validateBlock(newBlock, activeVals))
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// check that txs match the txs we're waiting for.
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// note they could be spread over multiple blocks,
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// but they should be in order.
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for _, tx := range newBlock.Data.Txs {
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require.EqualValues(t, txs[ntxs], tx)
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ntxs++
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}
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if ntxs == len(txs) {
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break BLOCK_TX_LOOP
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}
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}
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}
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var wg sync.WaitGroup
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wg.Add(n)
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for i := 0; i < n; i++ {
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go func(j int) {
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fn(j)
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wg.Done()
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}(i)
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}
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wg.Wait()
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}
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func waitForBlockWithUpdatedValsAndValidateIt(
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t *testing.T,
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n int,
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updatedVals map[string]struct{},
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blocksSubs []types.Subscription,
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css []*State,
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) {
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fn := func(j int) {
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var newBlock *types.Block
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LOOP:
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for {
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msg := <-blocksSubs[j].Out()
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newBlock = msg.Data().(types.EventDataNewBlock).Block
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if newBlock.LastCommit.Size() == len(updatedVals) {
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break LOOP
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}
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}
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require.NoError(t, validateBlock(newBlock, updatedVals))
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}
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var wg sync.WaitGroup
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wg.Add(n)
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for i := 0; i < n; i++ {
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go func(j int) {
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fn(j)
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wg.Done()
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}(i)
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}
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wg.Wait()
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}
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func TestReactorBasic(t *testing.T) {
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config := configSetup(t)
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n := 4
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states, cleanup := randConsensusState(config, n, "consensus_reactor_test", newMockTickerFunc(true), newCounter)
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t.Cleanup(cleanup)
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rts := setup(t, n, states, 100) // buffer must be large enough to not deadlock
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for _, reactor := range rts.reactors {
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state := reactor.state.GetState()
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reactor.SwitchToConsensus(state, false)
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}
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var wg sync.WaitGroup
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for _, sub := range rts.subs {
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wg.Add(1)
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// wait till everyone makes the first new block
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go func(s types.Subscription) {
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<-s.Out()
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wg.Done()
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}(sub)
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}
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wg.Wait()
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}
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func TestReactorWithEvidence(t *testing.T) {
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config := configSetup(t)
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n := 4
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testName := "consensus_reactor_test"
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tickerFunc := newMockTickerFunc(true)
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appFunc := newCounter
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genDoc, privVals := factory.RandGenesisDoc(config, n, false, 30)
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states := make([]*State, n)
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logger := consensusLogger()
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for i := 0; i < n; i++ {
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stateDB := dbm.NewMemDB() // each state needs its own db
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stateStore := sm.NewStore(stateDB)
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state, _ := stateStore.LoadFromDBOrGenesisDoc(genDoc)
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thisConfig := ResetConfig(fmt.Sprintf("%s_%d", testName, i))
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defer os.RemoveAll(thisConfig.RootDir)
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ensureDir(path.Dir(thisConfig.Consensus.WalFile()), 0700) // dir for wal
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app := appFunc()
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vals := types.TM2PB.ValidatorUpdates(state.Validators)
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app.InitChain(abci.RequestInitChain{Validators: vals})
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pv := privVals[i]
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blockDB := dbm.NewMemDB()
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blockStore := store.NewBlockStore(blockDB)
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// one for mempool, one for consensus
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mtx := new(tmsync.RWMutex)
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proxyAppConnMem := abcicli.NewLocalClient(mtx, app)
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proxyAppConnCon := abcicli.NewLocalClient(mtx, app)
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mempool := mempl.NewCListMempool(thisConfig.Mempool, proxyAppConnMem, 0)
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mempool.SetLogger(log.TestingLogger().With("module", "mempool"))
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if thisConfig.Consensus.WaitForTxs() {
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mempool.EnableTxsAvailable()
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}
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// mock the evidence pool
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// everyone includes evidence of another double signing
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vIdx := (i + 1) % n
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ev := types.NewMockDuplicateVoteEvidenceWithValidator(1, defaultTestTime, privVals[vIdx], config.ChainID())
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evpool := &statemocks.EvidencePool{}
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evpool.On("CheckEvidence", mock.AnythingOfType("types.EvidenceList")).Return(nil)
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evpool.On("PendingEvidence", mock.AnythingOfType("int64")).Return([]types.Evidence{
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ev}, int64(len(ev.Bytes())))
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evpool.On("Update", mock.AnythingOfType("state.State"), mock.AnythingOfType("types.EvidenceList")).Return()
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evpool2 := sm.EmptyEvidencePool{}
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blockExec := sm.NewBlockExecutor(stateStore, log.TestingLogger(), proxyAppConnCon, mempool, evpool)
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cs := NewState(thisConfig.Consensus, state, blockExec, blockStore, mempool, evpool2)
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cs.SetLogger(log.TestingLogger().With("module", "consensus"))
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cs.SetPrivValidator(pv)
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eventBus := types.NewEventBus()
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eventBus.SetLogger(log.TestingLogger().With("module", "events"))
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err := eventBus.Start()
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require.NoError(t, err)
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cs.SetEventBus(eventBus)
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cs.SetTimeoutTicker(tickerFunc())
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cs.SetLogger(logger.With("validator", i, "module", "consensus"))
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states[i] = cs
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}
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rts := setup(t, n, states, 100) // buffer must be large enough to not deadlock
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for _, reactor := range rts.reactors {
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state := reactor.state.GetState()
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reactor.SwitchToConsensus(state, false)
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}
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var wg sync.WaitGroup
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for _, sub := range rts.subs {
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wg.Add(1)
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// We expect for each validator that is the proposer to propose one piece of
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// evidence.
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go func(s types.Subscription) {
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msg := <-s.Out()
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block := msg.Data().(types.EventDataNewBlock).Block
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require.Len(t, block.Evidence.Evidence, 1)
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wg.Done()
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}(sub)
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}
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wg.Wait()
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}
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func TestReactorCreatesBlockWhenEmptyBlocksFalse(t *testing.T) {
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config := configSetup(t)
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n := 4
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states, cleanup := randConsensusState(
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config,
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n,
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"consensus_reactor_test",
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newMockTickerFunc(true),
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newCounter,
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func(c *cfg.Config) {
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c.Consensus.CreateEmptyBlocks = false
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},
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)
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t.Cleanup(cleanup)
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rts := setup(t, n, states, 100) // buffer must be large enough to not deadlock
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for _, reactor := range rts.reactors {
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state := reactor.state.GetState()
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reactor.SwitchToConsensus(state, false)
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}
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// send a tx
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require.NoError(t, assertMempool(states[3].txNotifier).CheckTx([]byte{1, 2, 3}, nil, mempl.TxInfo{}))
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var wg sync.WaitGroup
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for _, sub := range rts.subs {
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wg.Add(1)
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// wait till everyone makes the first new block
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go func(s types.Subscription) {
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<-s.Out()
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wg.Done()
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}(sub)
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}
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wg.Wait()
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}
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func TestReactorRecordsVotesAndBlockParts(t *testing.T) {
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config := configSetup(t)
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n := 4
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states, cleanup := randConsensusState(config, n, "consensus_reactor_test", newMockTickerFunc(true), newCounter)
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t.Cleanup(cleanup)
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rts := setup(t, n, states, 100) // buffer must be large enough to not deadlock
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for _, reactor := range rts.reactors {
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state := reactor.state.GetState()
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reactor.SwitchToConsensus(state, false)
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}
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var wg sync.WaitGroup
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for _, sub := range rts.subs {
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wg.Add(1)
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// wait till everyone makes the first new block
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go func(s types.Subscription) {
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<-s.Out()
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wg.Done()
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}(sub)
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}
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wg.Wait()
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// Require at least one node to have sent block parts, but we can't know which
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// peer sent it.
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require.Eventually(
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t,
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func() bool {
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for _, reactor := range rts.reactors {
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for _, ps := range reactor.peers {
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if ps.BlockPartsSent() > 0 {
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return true
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}
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}
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}
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return false
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},
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time.Second,
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10*time.Millisecond,
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"number of block parts sent should've increased",
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)
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nodeID := rts.network.RandomNode().NodeID
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reactor := rts.reactors[nodeID]
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peers := rts.network.Peers(nodeID)
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ps, ok := reactor.GetPeerState(peers[0].NodeID)
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require.True(t, ok)
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require.NotNil(t, ps)
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require.Greater(t, ps.VotesSent(), 0, "number of votes sent should've increased")
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}
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func TestReactorVotingPowerChange(t *testing.T) {
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config := configSetup(t)
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n := 4
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states, cleanup := randConsensusState(
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config,
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n,
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"consensus_voting_power_changes_test",
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newMockTickerFunc(true),
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newPersistentKVStore,
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)
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t.Cleanup(cleanup)
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rts := setup(t, n, states, 100) // buffer must be large enough to not deadlock
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for _, reactor := range rts.reactors {
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state := reactor.state.GetState()
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reactor.SwitchToConsensus(state, false)
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}
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// map of active validators
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activeVals := make(map[string]struct{})
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for i := 0; i < n; i++ {
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pubKey, err := states[i].privValidator.GetPubKey(context.Background())
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require.NoError(t, err)
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addr := pubKey.Address()
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activeVals[string(addr)] = struct{}{}
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}
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var wg sync.WaitGroup
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for _, sub := range rts.subs {
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wg.Add(1)
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// wait till everyone makes the first new block
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go func(s types.Subscription) {
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<-s.Out()
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wg.Done()
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}(sub)
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}
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wg.Wait()
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blocksSubs := []types.Subscription{}
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for _, sub := range rts.subs {
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blocksSubs = append(blocksSubs, sub)
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}
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val1PubKey, err := states[0].privValidator.GetPubKey(context.Background())
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require.NoError(t, err)
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val1PubKeyABCI, err := cryptoenc.PubKeyToProto(val1PubKey)
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require.NoError(t, err)
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updateValidatorTx := kvstore.MakeValSetChangeTx(val1PubKeyABCI, 25)
|
|
previousTotalVotingPower := states[0].GetRoundState().LastValidators.TotalVotingPower()
|
|
|
|
waitForAndValidateBlock(t, n, activeVals, blocksSubs, states, updateValidatorTx)
|
|
waitForAndValidateBlockWithTx(t, n, activeVals, blocksSubs, states, updateValidatorTx)
|
|
waitForAndValidateBlock(t, n, activeVals, blocksSubs, states)
|
|
waitForAndValidateBlock(t, n, activeVals, blocksSubs, states)
|
|
|
|
require.NotEqualf(
|
|
t, previousTotalVotingPower, states[0].GetRoundState().LastValidators.TotalVotingPower(),
|
|
"expected voting power to change (before: %d, after: %d)",
|
|
previousTotalVotingPower,
|
|
states[0].GetRoundState().LastValidators.TotalVotingPower(),
|
|
)
|
|
|
|
updateValidatorTx = kvstore.MakeValSetChangeTx(val1PubKeyABCI, 2)
|
|
previousTotalVotingPower = states[0].GetRoundState().LastValidators.TotalVotingPower()
|
|
|
|
waitForAndValidateBlock(t, n, activeVals, blocksSubs, states, updateValidatorTx)
|
|
waitForAndValidateBlockWithTx(t, n, activeVals, blocksSubs, states, updateValidatorTx)
|
|
waitForAndValidateBlock(t, n, activeVals, blocksSubs, states)
|
|
waitForAndValidateBlock(t, n, activeVals, blocksSubs, states)
|
|
|
|
require.NotEqualf(
|
|
t, states[0].GetRoundState().LastValidators.TotalVotingPower(), previousTotalVotingPower,
|
|
"expected voting power to change (before: %d, after: %d)",
|
|
previousTotalVotingPower, states[0].GetRoundState().LastValidators.TotalVotingPower(),
|
|
)
|
|
|
|
updateValidatorTx = kvstore.MakeValSetChangeTx(val1PubKeyABCI, 26)
|
|
previousTotalVotingPower = states[0].GetRoundState().LastValidators.TotalVotingPower()
|
|
|
|
waitForAndValidateBlock(t, n, activeVals, blocksSubs, states, updateValidatorTx)
|
|
waitForAndValidateBlockWithTx(t, n, activeVals, blocksSubs, states, updateValidatorTx)
|
|
waitForAndValidateBlock(t, n, activeVals, blocksSubs, states)
|
|
waitForAndValidateBlock(t, n, activeVals, blocksSubs, states)
|
|
|
|
require.NotEqualf(
|
|
t, previousTotalVotingPower, states[0].GetRoundState().LastValidators.TotalVotingPower(),
|
|
"expected voting power to change (before: %d, after: %d)",
|
|
previousTotalVotingPower,
|
|
states[0].GetRoundState().LastValidators.TotalVotingPower(),
|
|
)
|
|
}
|
|
|
|
func TestReactorValidatorSetChanges(t *testing.T) {
|
|
config := configSetup(t)
|
|
|
|
nPeers := 7
|
|
nVals := 4
|
|
states, _, _, cleanup := randConsensusNetWithPeers(
|
|
config,
|
|
nVals,
|
|
nPeers,
|
|
"consensus_val_set_changes_test",
|
|
newMockTickerFunc(true),
|
|
newPersistentKVStoreWithPath,
|
|
)
|
|
t.Cleanup(cleanup)
|
|
|
|
rts := setup(t, nPeers, states, 100) // buffer must be large enough to not deadlock
|
|
|
|
for _, reactor := range rts.reactors {
|
|
state := reactor.state.GetState()
|
|
reactor.SwitchToConsensus(state, false)
|
|
}
|
|
|
|
// map of active validators
|
|
activeVals := make(map[string]struct{})
|
|
for i := 0; i < nVals; i++ {
|
|
pubKey, err := states[i].privValidator.GetPubKey(context.Background())
|
|
require.NoError(t, err)
|
|
|
|
activeVals[string(pubKey.Address())] = struct{}{}
|
|
}
|
|
|
|
var wg sync.WaitGroup
|
|
for _, sub := range rts.subs {
|
|
wg.Add(1)
|
|
|
|
// wait till everyone makes the first new block
|
|
go func(s types.Subscription) {
|
|
<-s.Out()
|
|
wg.Done()
|
|
}(sub)
|
|
}
|
|
|
|
wg.Wait()
|
|
|
|
newValidatorPubKey1, err := states[nVals].privValidator.GetPubKey(context.Background())
|
|
require.NoError(t, err)
|
|
|
|
valPubKey1ABCI, err := cryptoenc.PubKeyToProto(newValidatorPubKey1)
|
|
require.NoError(t, err)
|
|
|
|
newValidatorTx1 := kvstore.MakeValSetChangeTx(valPubKey1ABCI, testMinPower)
|
|
|
|
blocksSubs := []types.Subscription{}
|
|
for _, sub := range rts.subs {
|
|
blocksSubs = append(blocksSubs, sub)
|
|
}
|
|
|
|
// wait till everyone makes block 2
|
|
// ensure the commit includes all validators
|
|
// send newValTx to change vals in block 3
|
|
waitForAndValidateBlock(t, nPeers, activeVals, blocksSubs, states, newValidatorTx1)
|
|
|
|
// wait till everyone makes block 3.
|
|
// it includes the commit for block 2, which is by the original validator set
|
|
waitForAndValidateBlockWithTx(t, nPeers, activeVals, blocksSubs, states, newValidatorTx1)
|
|
|
|
// wait till everyone makes block 4.
|
|
// it includes the commit for block 3, which is by the original validator set
|
|
waitForAndValidateBlock(t, nPeers, activeVals, blocksSubs, states)
|
|
|
|
// the commits for block 4 should be with the updated validator set
|
|
activeVals[string(newValidatorPubKey1.Address())] = struct{}{}
|
|
|
|
// wait till everyone makes block 5
|
|
// it includes the commit for block 4, which should have the updated validator set
|
|
waitForBlockWithUpdatedValsAndValidateIt(t, nPeers, activeVals, blocksSubs, states)
|
|
|
|
updateValidatorPubKey1, err := states[nVals].privValidator.GetPubKey(context.Background())
|
|
require.NoError(t, err)
|
|
|
|
updatePubKey1ABCI, err := cryptoenc.PubKeyToProto(updateValidatorPubKey1)
|
|
require.NoError(t, err)
|
|
|
|
updateValidatorTx1 := kvstore.MakeValSetChangeTx(updatePubKey1ABCI, 25)
|
|
previousTotalVotingPower := states[nVals].GetRoundState().LastValidators.TotalVotingPower()
|
|
|
|
waitForAndValidateBlock(t, nPeers, activeVals, blocksSubs, states, updateValidatorTx1)
|
|
waitForAndValidateBlockWithTx(t, nPeers, activeVals, blocksSubs, states, updateValidatorTx1)
|
|
waitForAndValidateBlock(t, nPeers, activeVals, blocksSubs, states)
|
|
waitForBlockWithUpdatedValsAndValidateIt(t, nPeers, activeVals, blocksSubs, states)
|
|
|
|
require.NotEqualf(
|
|
t, states[nVals].GetRoundState().LastValidators.TotalVotingPower(), previousTotalVotingPower,
|
|
"expected voting power to change (before: %d, after: %d)",
|
|
previousTotalVotingPower, states[nVals].GetRoundState().LastValidators.TotalVotingPower(),
|
|
)
|
|
|
|
newValidatorPubKey2, err := states[nVals+1].privValidator.GetPubKey(context.Background())
|
|
require.NoError(t, err)
|
|
|
|
newVal2ABCI, err := cryptoenc.PubKeyToProto(newValidatorPubKey2)
|
|
require.NoError(t, err)
|
|
|
|
newValidatorTx2 := kvstore.MakeValSetChangeTx(newVal2ABCI, testMinPower)
|
|
|
|
newValidatorPubKey3, err := states[nVals+2].privValidator.GetPubKey(context.Background())
|
|
require.NoError(t, err)
|
|
|
|
newVal3ABCI, err := cryptoenc.PubKeyToProto(newValidatorPubKey3)
|
|
require.NoError(t, err)
|
|
|
|
newValidatorTx3 := kvstore.MakeValSetChangeTx(newVal3ABCI, testMinPower)
|
|
|
|
waitForAndValidateBlock(t, nPeers, activeVals, blocksSubs, states, newValidatorTx2, newValidatorTx3)
|
|
waitForAndValidateBlockWithTx(t, nPeers, activeVals, blocksSubs, states, newValidatorTx2, newValidatorTx3)
|
|
waitForAndValidateBlock(t, nPeers, activeVals, blocksSubs, states)
|
|
|
|
activeVals[string(newValidatorPubKey2.Address())] = struct{}{}
|
|
activeVals[string(newValidatorPubKey3.Address())] = struct{}{}
|
|
|
|
waitForBlockWithUpdatedValsAndValidateIt(t, nPeers, activeVals, blocksSubs, states)
|
|
|
|
removeValidatorTx2 := kvstore.MakeValSetChangeTx(newVal2ABCI, 0)
|
|
removeValidatorTx3 := kvstore.MakeValSetChangeTx(newVal3ABCI, 0)
|
|
|
|
waitForAndValidateBlock(t, nPeers, activeVals, blocksSubs, states, removeValidatorTx2, removeValidatorTx3)
|
|
waitForAndValidateBlockWithTx(t, nPeers, activeVals, blocksSubs, states, removeValidatorTx2, removeValidatorTx3)
|
|
waitForAndValidateBlock(t, nPeers, activeVals, blocksSubs, states)
|
|
|
|
delete(activeVals, string(newValidatorPubKey2.Address()))
|
|
delete(activeVals, string(newValidatorPubKey3.Address()))
|
|
|
|
waitForBlockWithUpdatedValsAndValidateIt(t, nPeers, activeVals, blocksSubs, states)
|
|
}
|