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1103 lines
35 KiB
1103 lines
35 KiB
package consensus
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import (
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"bytes"
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"context"
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"fmt"
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"testing"
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"time"
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cstypes "github.com/tendermint/tendermint/consensus/types"
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tmpubsub "github.com/tendermint/tendermint/libs/pubsub"
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"github.com/tendermint/tendermint/types"
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cmn "github.com/tendermint/tendermint/libs/common"
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"github.com/tendermint/tendermint/libs/log"
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)
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func init() {
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config = ResetConfig("consensus_state_test")
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}
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func ensureProposeTimeout(timeoutPropose int) time.Duration {
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return time.Duration(timeoutPropose*2) * time.Millisecond
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}
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/*
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ProposeSuite
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x * TestProposerSelection0 - round robin ordering, round 0
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x * TestProposerSelection2 - round robin ordering, round 2++
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x * TestEnterProposeNoValidator - timeout into prevote round
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x * TestEnterPropose - finish propose without timing out (we have the proposal)
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x * TestBadProposal - 2 vals, bad proposal (bad block state hash), should prevote and precommit nil
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FullRoundSuite
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x * TestFullRound1 - 1 val, full successful round
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x * TestFullRoundNil - 1 val, full round of nil
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x * TestFullRound2 - 2 vals, both required for full round
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LockSuite
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x * TestLockNoPOL - 2 vals, 4 rounds. one val locked, precommits nil every round except first.
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x * TestLockPOLRelock - 4 vals, one precommits, other 3 polka at next round, so we unlock and precomit the polka
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x * TestLockPOLUnlock - 4 vals, one precommits, other 3 polka nil at next round, so we unlock and precomit nil
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x * TestLockPOLSafety1 - 4 vals. We shouldn't change lock based on polka at earlier round
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x * TestLockPOLSafety2 - 4 vals. After unlocking, we shouldn't relock based on polka at earlier round
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* TestNetworkLock - once +1/3 precommits, network should be locked
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* TestNetworkLockPOL - once +1/3 precommits, the block with more recent polka is committed
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SlashingSuite
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x * TestSlashingPrevotes - a validator prevoting twice in a round gets slashed
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x * TestSlashingPrecommits - a validator precomitting twice in a round gets slashed
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CatchupSuite
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* TestCatchup - if we might be behind and we've seen any 2/3 prevotes, round skip to new round, precommit, or prevote
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HaltSuite
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x * TestHalt1 - if we see +2/3 precommits after timing out into new round, we should still commit
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*/
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//----------------------------------------------------------------------------------------------------
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// ProposeSuite
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func TestStateProposerSelection0(t *testing.T) {
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cs1, vss := randConsensusState(4)
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height, round := cs1.Height, cs1.Round
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newRoundCh := subscribe(cs1.eventBus, types.EventQueryNewRound)
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proposalCh := subscribe(cs1.eventBus, types.EventQueryCompleteProposal)
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startTestRound(cs1, height, round)
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// Wait for new round so proposer is set.
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<-newRoundCh
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// Commit a block and ensure proposer for the next height is correct.
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prop := cs1.GetRoundState().Validators.GetProposer()
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if !bytes.Equal(prop.Address, cs1.privValidator.GetAddress()) {
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t.Fatalf("expected proposer to be validator %d. Got %X", 0, prop.Address)
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}
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// Wait for complete proposal.
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<-proposalCh
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rs := cs1.GetRoundState()
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signAddVotes(cs1, types.VoteTypePrecommit, rs.ProposalBlock.Hash(), rs.ProposalBlockParts.Header(), vss[1:]...)
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// Wait for new round so next validator is set.
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<-newRoundCh
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prop = cs1.GetRoundState().Validators.GetProposer()
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if !bytes.Equal(prop.Address, vss[1].GetAddress()) {
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panic(cmn.Fmt("expected proposer to be validator %d. Got %X", 1, prop.Address))
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}
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}
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// Now let's do it all again, but starting from round 2 instead of 0
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func TestStateProposerSelection2(t *testing.T) {
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cs1, vss := randConsensusState(4) // test needs more work for more than 3 validators
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newRoundCh := subscribe(cs1.eventBus, types.EventQueryNewRound)
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// this time we jump in at round 2
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incrementRound(vss[1:]...)
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incrementRound(vss[1:]...)
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startTestRound(cs1, cs1.Height, 2)
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<-newRoundCh // wait for the new round
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// everyone just votes nil. we get a new proposer each round
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for i := 0; i < len(vss); i++ {
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prop := cs1.GetRoundState().Validators.GetProposer()
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if !bytes.Equal(prop.Address, vss[(i+2)%len(vss)].GetAddress()) {
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panic(cmn.Fmt("expected proposer to be validator %d. Got %X", (i+2)%len(vss), prop.Address))
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}
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rs := cs1.GetRoundState()
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signAddVotes(cs1, types.VoteTypePrecommit, nil, rs.ProposalBlockParts.Header(), vss[1:]...)
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<-newRoundCh // wait for the new round event each round
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incrementRound(vss[1:]...)
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}
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}
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// a non-validator should timeout into the prevote round
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func TestStateEnterProposeNoPrivValidator(t *testing.T) {
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cs, _ := randConsensusState(1)
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cs.SetPrivValidator(nil)
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height, round := cs.Height, cs.Round
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// Listen for propose timeout event
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timeoutCh := subscribe(cs.eventBus, types.EventQueryTimeoutPropose)
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startTestRound(cs, height, round)
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// if we're not a validator, EnterPropose should timeout
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ticker := time.NewTicker(ensureProposeTimeout(cs.config.TimeoutPropose))
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select {
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case <-timeoutCh:
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case <-ticker.C:
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panic("Expected EnterPropose to timeout")
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}
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if cs.GetRoundState().Proposal != nil {
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t.Error("Expected to make no proposal, since no privValidator")
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}
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}
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// a validator should not timeout of the prevote round (TODO: unless the block is really big!)
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func TestStateEnterProposeYesPrivValidator(t *testing.T) {
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cs, _ := randConsensusState(1)
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height, round := cs.Height, cs.Round
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// Listen for propose timeout event
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timeoutCh := subscribe(cs.eventBus, types.EventQueryTimeoutPropose)
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proposalCh := subscribe(cs.eventBus, types.EventQueryCompleteProposal)
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cs.enterNewRound(height, round)
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cs.startRoutines(3)
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<-proposalCh
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// Check that Proposal, ProposalBlock, ProposalBlockParts are set.
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rs := cs.GetRoundState()
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if rs.Proposal == nil {
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t.Error("rs.Proposal should be set")
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}
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if rs.ProposalBlock == nil {
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t.Error("rs.ProposalBlock should be set")
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}
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if rs.ProposalBlockParts.Total() == 0 {
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t.Error("rs.ProposalBlockParts should be set")
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}
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// if we're a validator, enterPropose should not timeout
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ticker := time.NewTicker(ensureProposeTimeout(cs.config.TimeoutPropose))
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select {
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case <-timeoutCh:
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panic("Expected EnterPropose not to timeout")
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case <-ticker.C:
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}
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}
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func TestStateBadProposal(t *testing.T) {
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cs1, vss := randConsensusState(2)
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height, round := cs1.Height, cs1.Round
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vs2 := vss[1]
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partSize := cs1.state.ConsensusParams.BlockPartSizeBytes
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proposalCh := subscribe(cs1.eventBus, types.EventQueryCompleteProposal)
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voteCh := subscribe(cs1.eventBus, types.EventQueryVote)
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propBlock, _ := cs1.createProposalBlock() //changeProposer(t, cs1, vs2)
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// make the second validator the proposer by incrementing round
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round = round + 1
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incrementRound(vss[1:]...)
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// make the block bad by tampering with statehash
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stateHash := propBlock.AppHash
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if len(stateHash) == 0 {
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stateHash = make([]byte, 32)
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}
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stateHash[0] = byte((stateHash[0] + 1) % 255)
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propBlock.AppHash = stateHash
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propBlockParts := propBlock.MakePartSet(partSize)
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proposal := types.NewProposal(vs2.Height, round, propBlockParts.Header(), -1, types.BlockID{})
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if err := vs2.SignProposal(config.ChainID(), proposal); err != nil {
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t.Fatal("failed to sign bad proposal", err)
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}
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// set the proposal block
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if err := cs1.SetProposalAndBlock(proposal, propBlock, propBlockParts, "some peer"); err != nil {
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t.Fatal(err)
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}
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// start the machine
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startTestRound(cs1, height, round)
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// wait for proposal
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<-proposalCh
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// wait for prevote
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<-voteCh
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validatePrevote(t, cs1, round, vss[0], nil)
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// add bad prevote from vs2 and wait for it
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signAddVotes(cs1, types.VoteTypePrevote, propBlock.Hash(), propBlock.MakePartSet(partSize).Header(), vs2)
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<-voteCh
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// wait for precommit
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<-voteCh
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validatePrecommit(t, cs1, round, 0, vss[0], nil, nil)
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signAddVotes(cs1, types.VoteTypePrecommit, propBlock.Hash(), propBlock.MakePartSet(partSize).Header(), vs2)
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}
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//----------------------------------------------------------------------------------------------------
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// FullRoundSuite
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// propose, prevote, and precommit a block
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func TestStateFullRound1(t *testing.T) {
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cs, vss := randConsensusState(1)
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height, round := cs.Height, cs.Round
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// NOTE: buffer capacity of 0 ensures we can validate prevote and last commit
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// before consensus can move to the next height (and cause a race condition)
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cs.eventBus.Stop()
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eventBus := types.NewEventBusWithBufferCapacity(0)
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eventBus.SetLogger(log.TestingLogger().With("module", "events"))
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cs.SetEventBus(eventBus)
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eventBus.Start()
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voteCh := subscribe(cs.eventBus, types.EventQueryVote)
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propCh := subscribe(cs.eventBus, types.EventQueryCompleteProposal)
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newRoundCh := subscribe(cs.eventBus, types.EventQueryNewRound)
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startTestRound(cs, height, round)
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<-newRoundCh
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// grab proposal
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re := <-propCh
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propBlockHash := re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState).ProposalBlock.Hash()
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<-voteCh // wait for prevote
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validatePrevote(t, cs, round, vss[0], propBlockHash)
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<-voteCh // wait for precommit
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// we're going to roll right into new height
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<-newRoundCh
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validateLastPrecommit(t, cs, vss[0], propBlockHash)
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}
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// nil is proposed, so prevote and precommit nil
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func TestStateFullRoundNil(t *testing.T) {
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cs, vss := randConsensusState(1)
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height, round := cs.Height, cs.Round
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voteCh := subscribe(cs.eventBus, types.EventQueryVote)
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cs.enterPrevote(height, round)
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cs.startRoutines(4)
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<-voteCh // prevote
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<-voteCh // precommit
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// should prevote and precommit nil
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validatePrevoteAndPrecommit(t, cs, round, 0, vss[0], nil, nil)
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}
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// run through propose, prevote, precommit commit with two validators
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// where the first validator has to wait for votes from the second
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func TestStateFullRound2(t *testing.T) {
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cs1, vss := randConsensusState(2)
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vs2 := vss[1]
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height, round := cs1.Height, cs1.Round
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voteCh := subscribe(cs1.eventBus, types.EventQueryVote)
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newBlockCh := subscribe(cs1.eventBus, types.EventQueryNewBlock)
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// start round and wait for propose and prevote
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startTestRound(cs1, height, round)
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<-voteCh // prevote
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// we should be stuck in limbo waiting for more prevotes
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rs := cs1.GetRoundState()
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propBlockHash, propPartsHeader := rs.ProposalBlock.Hash(), rs.ProposalBlockParts.Header()
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// prevote arrives from vs2:
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signAddVotes(cs1, types.VoteTypePrevote, propBlockHash, propPartsHeader, vs2)
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<-voteCh
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<-voteCh //precommit
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// the proposed block should now be locked and our precommit added
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validatePrecommit(t, cs1, 0, 0, vss[0], propBlockHash, propBlockHash)
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// we should be stuck in limbo waiting for more precommits
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// precommit arrives from vs2:
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signAddVotes(cs1, types.VoteTypePrecommit, propBlockHash, propPartsHeader, vs2)
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<-voteCh
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// wait to finish commit, propose in next height
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<-newBlockCh
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}
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//------------------------------------------------------------------------------------------
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// LockSuite
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// two validators, 4 rounds.
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// two vals take turns proposing. val1 locks on first one, precommits nil on everything else
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func TestStateLockNoPOL(t *testing.T) {
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cs1, vss := randConsensusState(2)
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vs2 := vss[1]
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height := cs1.Height
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partSize := cs1.state.ConsensusParams.BlockPartSizeBytes
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timeoutProposeCh := subscribe(cs1.eventBus, types.EventQueryTimeoutPropose)
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timeoutWaitCh := subscribe(cs1.eventBus, types.EventQueryTimeoutWait)
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voteCh := subscribe(cs1.eventBus, types.EventQueryVote)
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proposalCh := subscribe(cs1.eventBus, types.EventQueryCompleteProposal)
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newRoundCh := subscribe(cs1.eventBus, types.EventQueryNewRound)
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/*
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Round1 (cs1, B) // B B // B B2
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*/
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// start round and wait for prevote
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cs1.enterNewRound(height, 0)
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cs1.startRoutines(0)
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re := <-proposalCh
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rs := re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
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theBlockHash := rs.ProposalBlock.Hash()
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<-voteCh // prevote
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// we should now be stuck in limbo forever, waiting for more prevotes
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// prevote arrives from vs2:
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signAddVotes(cs1, types.VoteTypePrevote, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header(), vs2)
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<-voteCh // prevote
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<-voteCh // precommit
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// the proposed block should now be locked and our precommit added
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validatePrecommit(t, cs1, 0, 0, vss[0], theBlockHash, theBlockHash)
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// we should now be stuck in limbo forever, waiting for more precommits
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// lets add one for a different block
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// NOTE: in practice we should never get to a point where there are precommits for different blocks at the same round
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hash := make([]byte, len(theBlockHash))
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copy(hash, theBlockHash)
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hash[0] = byte((hash[0] + 1) % 255)
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signAddVotes(cs1, types.VoteTypePrecommit, hash, rs.ProposalBlock.MakePartSet(partSize).Header(), vs2)
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<-voteCh // precommit
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// (note we're entering precommit for a second time this round)
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// but with invalid args. then we enterPrecommitWait, and the timeout to new round
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<-timeoutWaitCh
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///
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<-newRoundCh
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t.Log("#### ONTO ROUND 1")
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/*
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Round2 (cs1, B) // B B2
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*/
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incrementRound(vs2)
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// now we're on a new round and not the proposer, so wait for timeout
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re = <-timeoutProposeCh
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rs = re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
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if rs.ProposalBlock != nil {
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panic("Expected proposal block to be nil")
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}
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// wait to finish prevote
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<-voteCh
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// we should have prevoted our locked block
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validatePrevote(t, cs1, 1, vss[0], rs.LockedBlock.Hash())
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// add a conflicting prevote from the other validator
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signAddVotes(cs1, types.VoteTypePrevote, hash, rs.LockedBlock.MakePartSet(partSize).Header(), vs2)
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<-voteCh
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// now we're going to enter prevote again, but with invalid args
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// and then prevote wait, which should timeout. then wait for precommit
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<-timeoutWaitCh
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<-voteCh // precommit
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// the proposed block should still be locked and our precommit added
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// we should precommit nil and be locked on the proposal
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validatePrecommit(t, cs1, 1, 0, vss[0], nil, theBlockHash)
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// add conflicting precommit from vs2
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// NOTE: in practice we should never get to a point where there are precommits for different blocks at the same round
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signAddVotes(cs1, types.VoteTypePrecommit, hash, rs.LockedBlock.MakePartSet(partSize).Header(), vs2)
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<-voteCh
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// (note we're entering precommit for a second time this round, but with invalid args
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// then we enterPrecommitWait and timeout into NewRound
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<-timeoutWaitCh
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<-newRoundCh
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t.Log("#### ONTO ROUND 2")
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/*
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Round3 (vs2, _) // B, B2
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*/
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incrementRound(vs2)
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re = <-proposalCh
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rs = re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
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// now we're on a new round and are the proposer
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if !bytes.Equal(rs.ProposalBlock.Hash(), rs.LockedBlock.Hash()) {
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panic(cmn.Fmt("Expected proposal block to be locked block. Got %v, Expected %v", rs.ProposalBlock, rs.LockedBlock))
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}
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<-voteCh // prevote
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validatePrevote(t, cs1, 2, vss[0], rs.LockedBlock.Hash())
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signAddVotes(cs1, types.VoteTypePrevote, hash, rs.ProposalBlock.MakePartSet(partSize).Header(), vs2)
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<-voteCh
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<-timeoutWaitCh // prevote wait
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<-voteCh // precommit
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validatePrecommit(t, cs1, 2, 0, vss[0], nil, theBlockHash) // precommit nil but be locked on proposal
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signAddVotes(cs1, types.VoteTypePrecommit, hash, rs.ProposalBlock.MakePartSet(partSize).Header(), vs2) // NOTE: conflicting precommits at same height
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<-voteCh
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<-timeoutWaitCh
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// before we time out into new round, set next proposal block
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prop, propBlock := decideProposal(cs1, vs2, vs2.Height, vs2.Round+1)
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if prop == nil || propBlock == nil {
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t.Fatal("Failed to create proposal block with vs2")
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}
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incrementRound(vs2)
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<-newRoundCh
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t.Log("#### ONTO ROUND 3")
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/*
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Round4 (vs2, C) // B C // B C
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*/
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// now we're on a new round and not the proposer
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// so set the proposal block
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if err := cs1.SetProposalAndBlock(prop, propBlock, propBlock.MakePartSet(partSize), ""); err != nil {
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t.Fatal(err)
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}
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<-proposalCh
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<-voteCh // prevote
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// prevote for locked block (not proposal)
|
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validatePrevote(t, cs1, 0, vss[0], cs1.LockedBlock.Hash())
|
|
|
|
signAddVotes(cs1, types.VoteTypePrevote, propBlock.Hash(), propBlock.MakePartSet(partSize).Header(), vs2)
|
|
<-voteCh
|
|
|
|
<-timeoutWaitCh
|
|
<-voteCh
|
|
|
|
validatePrecommit(t, cs1, 2, 0, vss[0], nil, theBlockHash) // precommit nil but locked on proposal
|
|
|
|
signAddVotes(cs1, types.VoteTypePrecommit, propBlock.Hash(), propBlock.MakePartSet(partSize).Header(), vs2) // NOTE: conflicting precommits at same height
|
|
<-voteCh
|
|
}
|
|
|
|
// 4 vals, one precommits, other 3 polka at next round, so we unlock and precomit the polka
|
|
func TestStateLockPOLRelock(t *testing.T) {
|
|
cs1, vss := randConsensusState(4)
|
|
vs2, vs3, vs4 := vss[1], vss[2], vss[3]
|
|
|
|
partSize := cs1.state.ConsensusParams.BlockPartSizeBytes
|
|
|
|
timeoutProposeCh := subscribe(cs1.eventBus, types.EventQueryTimeoutPropose)
|
|
timeoutWaitCh := subscribe(cs1.eventBus, types.EventQueryTimeoutWait)
|
|
proposalCh := subscribe(cs1.eventBus, types.EventQueryCompleteProposal)
|
|
voteCh := subscribe(cs1.eventBus, types.EventQueryVote)
|
|
newRoundCh := subscribe(cs1.eventBus, types.EventQueryNewRound)
|
|
newBlockCh := subscribe(cs1.eventBus, types.EventQueryNewBlockHeader)
|
|
|
|
// everything done from perspective of cs1
|
|
|
|
/*
|
|
Round1 (cs1, B) // B B B B// B nil B nil
|
|
|
|
eg. vs2 and vs4 didn't see the 2/3 prevotes
|
|
*/
|
|
|
|
// start round and wait for propose and prevote
|
|
startTestRound(cs1, cs1.Height, 0)
|
|
|
|
<-newRoundCh
|
|
re := <-proposalCh
|
|
rs := re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
|
|
theBlockHash := rs.ProposalBlock.Hash()
|
|
|
|
<-voteCh // prevote
|
|
|
|
signAddVotes(cs1, types.VoteTypePrevote, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header(), vs2, vs3, vs4)
|
|
// prevotes
|
|
discardFromChan(voteCh, 3)
|
|
|
|
<-voteCh // our precommit
|
|
// the proposed block should now be locked and our precommit added
|
|
validatePrecommit(t, cs1, 0, 0, vss[0], theBlockHash, theBlockHash)
|
|
|
|
// add precommits from the rest
|
|
signAddVotes(cs1, types.VoteTypePrecommit, nil, types.PartSetHeader{}, vs2, vs4)
|
|
signAddVotes(cs1, types.VoteTypePrecommit, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header(), vs3)
|
|
// precommites
|
|
discardFromChan(voteCh, 3)
|
|
|
|
// before we timeout to the new round set the new proposal
|
|
prop, propBlock := decideProposal(cs1, vs2, vs2.Height, vs2.Round+1)
|
|
propBlockParts := propBlock.MakePartSet(partSize)
|
|
propBlockHash := propBlock.Hash()
|
|
|
|
incrementRound(vs2, vs3, vs4)
|
|
|
|
// timeout to new round
|
|
<-timeoutWaitCh
|
|
|
|
//XXX: this isnt guaranteed to get there before the timeoutPropose ...
|
|
if err := cs1.SetProposalAndBlock(prop, propBlock, propBlockParts, "some peer"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
<-newRoundCh
|
|
t.Log("### ONTO ROUND 1")
|
|
|
|
/*
|
|
Round2 (vs2, C) // B C C C // C C C _)
|
|
|
|
cs1 changes lock!
|
|
*/
|
|
|
|
// now we're on a new round and not the proposer
|
|
// but we should receive the proposal
|
|
select {
|
|
case <-proposalCh:
|
|
case <-timeoutProposeCh:
|
|
<-proposalCh
|
|
}
|
|
|
|
// go to prevote, prevote for locked block (not proposal), move on
|
|
<-voteCh
|
|
validatePrevote(t, cs1, 0, vss[0], theBlockHash)
|
|
|
|
// now lets add prevotes from everyone else for the new block
|
|
signAddVotes(cs1, types.VoteTypePrevote, propBlockHash, propBlockParts.Header(), vs2, vs3, vs4)
|
|
// prevotes
|
|
discardFromChan(voteCh, 3)
|
|
|
|
// now either we go to PrevoteWait or Precommit
|
|
select {
|
|
case <-timeoutWaitCh: // we're in PrevoteWait, go to Precommit
|
|
// XXX: there's no guarantee we see the polka, this might be a precommit for nil,
|
|
// in which case the test fails!
|
|
<-voteCh
|
|
case <-voteCh: // we went straight to Precommit
|
|
}
|
|
|
|
// we should have unlocked and locked on the new block
|
|
validatePrecommit(t, cs1, 1, 1, vss[0], propBlockHash, propBlockHash)
|
|
|
|
signAddVotes(cs1, types.VoteTypePrecommit, propBlockHash, propBlockParts.Header(), vs2, vs3)
|
|
discardFromChan(voteCh, 2)
|
|
|
|
be := <-newBlockCh
|
|
b := be.(types.EventDataNewBlockHeader)
|
|
re = <-newRoundCh
|
|
rs = re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
|
|
if rs.Height != 2 {
|
|
panic("Expected height to increment")
|
|
}
|
|
|
|
if !bytes.Equal(b.Header.Hash(), propBlockHash) {
|
|
panic("Expected new block to be proposal block")
|
|
}
|
|
}
|
|
|
|
// 4 vals, one precommits, other 3 polka at next round, so we unlock and precomit the polka
|
|
func TestStateLockPOLUnlock(t *testing.T) {
|
|
cs1, vss := randConsensusState(4)
|
|
vs2, vs3, vs4 := vss[1], vss[2], vss[3]
|
|
|
|
partSize := cs1.state.ConsensusParams.BlockPartSizeBytes
|
|
|
|
proposalCh := subscribe(cs1.eventBus, types.EventQueryCompleteProposal)
|
|
timeoutProposeCh := subscribe(cs1.eventBus, types.EventQueryTimeoutPropose)
|
|
timeoutWaitCh := subscribe(cs1.eventBus, types.EventQueryTimeoutWait)
|
|
newRoundCh := subscribe(cs1.eventBus, types.EventQueryNewRound)
|
|
unlockCh := subscribe(cs1.eventBus, types.EventQueryUnlock)
|
|
voteCh := subscribeToVoter(cs1, cs1.privValidator.GetAddress())
|
|
|
|
// everything done from perspective of cs1
|
|
|
|
/*
|
|
Round1 (cs1, B) // B B B B // B nil B nil
|
|
|
|
eg. didn't see the 2/3 prevotes
|
|
*/
|
|
|
|
// start round and wait for propose and prevote
|
|
startTestRound(cs1, cs1.Height, 0)
|
|
<-newRoundCh
|
|
re := <-proposalCh
|
|
rs := re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
|
|
theBlockHash := rs.ProposalBlock.Hash()
|
|
|
|
<-voteCh // prevote
|
|
|
|
signAddVotes(cs1, types.VoteTypePrevote, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header(), vs2, vs3, vs4)
|
|
|
|
<-voteCh //precommit
|
|
|
|
// the proposed block should now be locked and our precommit added
|
|
validatePrecommit(t, cs1, 0, 0, vss[0], theBlockHash, theBlockHash)
|
|
|
|
rs = cs1.GetRoundState()
|
|
|
|
// add precommits from the rest
|
|
signAddVotes(cs1, types.VoteTypePrecommit, nil, types.PartSetHeader{}, vs2, vs4)
|
|
signAddVotes(cs1, types.VoteTypePrecommit, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header(), vs3)
|
|
|
|
// before we time out into new round, set next proposal block
|
|
prop, propBlock := decideProposal(cs1, vs2, vs2.Height, vs2.Round+1)
|
|
propBlockParts := propBlock.MakePartSet(partSize)
|
|
|
|
incrementRound(vs2, vs3, vs4)
|
|
|
|
// timeout to new round
|
|
re = <-timeoutWaitCh
|
|
rs = re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
|
|
lockedBlockHash := rs.LockedBlock.Hash()
|
|
|
|
//XXX: this isnt guaranteed to get there before the timeoutPropose ...
|
|
if err := cs1.SetProposalAndBlock(prop, propBlock, propBlockParts, "some peer"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
<-newRoundCh
|
|
t.Log("#### ONTO ROUND 1")
|
|
/*
|
|
Round2 (vs2, C) // B nil nil nil // nil nil nil _
|
|
|
|
cs1 unlocks!
|
|
*/
|
|
|
|
// now we're on a new round and not the proposer,
|
|
// but we should receive the proposal
|
|
select {
|
|
case <-proposalCh:
|
|
case <-timeoutProposeCh:
|
|
<-proposalCh
|
|
}
|
|
|
|
// go to prevote, prevote for locked block (not proposal)
|
|
<-voteCh
|
|
validatePrevote(t, cs1, 0, vss[0], lockedBlockHash)
|
|
// now lets add prevotes from everyone else for nil (a polka!)
|
|
signAddVotes(cs1, types.VoteTypePrevote, nil, types.PartSetHeader{}, vs2, vs3, vs4)
|
|
|
|
// the polka makes us unlock and precommit nil
|
|
<-unlockCh
|
|
<-voteCh // precommit
|
|
|
|
// we should have unlocked and committed nil
|
|
// NOTE: since we don't relock on nil, the lock round is 0
|
|
validatePrecommit(t, cs1, 1, 0, vss[0], nil, nil)
|
|
|
|
signAddVotes(cs1, types.VoteTypePrecommit, nil, types.PartSetHeader{}, vs2, vs3)
|
|
<-newRoundCh
|
|
}
|
|
|
|
// 4 vals
|
|
// a polka at round 1 but we miss it
|
|
// then a polka at round 2 that we lock on
|
|
// then we see the polka from round 1 but shouldn't unlock
|
|
func TestStateLockPOLSafety1(t *testing.T) {
|
|
cs1, vss := randConsensusState(4)
|
|
vs2, vs3, vs4 := vss[1], vss[2], vss[3]
|
|
h := cs1.GetRoundState().Height
|
|
r := cs1.GetRoundState().Round
|
|
|
|
partSize := cs1.state.ConsensusParams.BlockPartSizeBytes
|
|
|
|
proposalCh := subscribe(cs1.eventBus, types.EventQueryCompleteProposal)
|
|
timeoutProposeCh := subscribe(cs1.eventBus, types.EventQueryTimeoutPropose)
|
|
timeoutWaitCh := subscribe(cs1.eventBus, types.EventQueryTimeoutWait)
|
|
newRoundCh := subscribe(cs1.eventBus, types.EventQueryNewRound)
|
|
voteCh := subscribeToVoter(cs1, cs1.privValidator.GetAddress())
|
|
|
|
// start round and wait for propose and prevote
|
|
startTestRound(cs1, cs1.Height, 0)
|
|
<-newRoundCh
|
|
re := <-proposalCh
|
|
rs := re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
|
|
propBlock := rs.ProposalBlock
|
|
|
|
ensureVote(voteCh, h, r, types.VoteTypePrevote)
|
|
|
|
validatePrevote(t, cs1, 0, vss[0], propBlock.Hash())
|
|
|
|
// the others sign a polka but we don't see it
|
|
prevotes := signVotes(types.VoteTypePrevote, propBlock.Hash(), propBlock.MakePartSet(partSize).Header(), vs2, vs3, vs4)
|
|
|
|
// before we time out into new round, set next proposer
|
|
// and next proposal block
|
|
/*
|
|
_, v1 := cs1.Validators.GetByAddress(vss[0].Address)
|
|
v1.VotingPower = 1
|
|
if updated := cs1.Validators.Update(v1); !updated {
|
|
panic("failed to update validator")
|
|
}*/
|
|
|
|
t.Logf("old prop hash %v", fmt.Sprintf("%X", propBlock.Hash()))
|
|
|
|
// we do see them precommit nil
|
|
signAddVotes(cs1, types.VoteTypePrecommit, nil, types.PartSetHeader{}, vs2, vs3, vs4)
|
|
|
|
ensureVote(voteCh, h, r, types.VoteTypePrecommit)
|
|
|
|
<-newRoundCh
|
|
t.Log("### ONTO ROUND 1")
|
|
|
|
prop, propBlock := decideProposal(cs1, vs2, vs2.Height, vs2.Round+1)
|
|
propBlockHash := propBlock.Hash()
|
|
propBlockParts := propBlock.MakePartSet(partSize)
|
|
|
|
incrementRound(vs2, vs3, vs4)
|
|
|
|
//XXX: this isnt guaranteed to get there before the timeoutPropose ...
|
|
if err := cs1.SetProposalAndBlock(prop, propBlock, propBlockParts, "some peer"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
/*Round2
|
|
// we timeout and prevote our lock
|
|
// a polka happened but we didn't see it!
|
|
*/
|
|
|
|
// now we're on a new round and not the proposer,
|
|
// but we should receive the proposal
|
|
select {
|
|
case re = <-proposalCh:
|
|
case <-timeoutProposeCh:
|
|
re = <-proposalCh
|
|
}
|
|
|
|
rs = re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
|
|
|
|
if rs.LockedBlock != nil {
|
|
panic("we should not be locked!")
|
|
}
|
|
t.Logf("new prop hash %v", fmt.Sprintf("%X", propBlockHash))
|
|
// go to prevote, prevote for proposal block
|
|
ensureVote(voteCh, h, r+1, types.VoteTypePrevote)
|
|
validatePrevote(t, cs1, 1, vss[0], propBlockHash)
|
|
|
|
// now we see the others prevote for it, so we should lock on it
|
|
signAddVotes(cs1, types.VoteTypePrevote, propBlockHash, propBlockParts.Header(), vs2, vs3, vs4)
|
|
|
|
ensureVote(voteCh, h, r+1, types.VoteTypePrecommit)
|
|
|
|
// we should have precommitted
|
|
validatePrecommit(t, cs1, 1, 1, vss[0], propBlockHash, propBlockHash)
|
|
|
|
signAddVotes(cs1, types.VoteTypePrecommit, nil, types.PartSetHeader{}, vs2, vs3)
|
|
|
|
<-timeoutWaitCh
|
|
|
|
incrementRound(vs2, vs3, vs4)
|
|
|
|
<-newRoundCh
|
|
|
|
t.Log("### ONTO ROUND 2")
|
|
/*Round3
|
|
we see the polka from round 1 but we shouldn't unlock!
|
|
*/
|
|
|
|
// timeout of propose
|
|
<-timeoutProposeCh
|
|
|
|
// finish prevote
|
|
ensureVote(voteCh, h, r+2, types.VoteTypePrevote)
|
|
|
|
// we should prevote what we're locked on
|
|
validatePrevote(t, cs1, 2, vss[0], propBlockHash)
|
|
|
|
newStepCh := subscribe(cs1.eventBus, types.EventQueryNewRoundStep)
|
|
|
|
// add prevotes from the earlier round
|
|
addVotes(cs1, prevotes...)
|
|
|
|
t.Log("Done adding prevotes!")
|
|
|
|
ensureNoNewStep(newStepCh)
|
|
}
|
|
|
|
// 4 vals.
|
|
// polka P0 at R0, P1 at R1, and P2 at R2,
|
|
// we lock on P0 at R0, don't see P1, and unlock using P2 at R2
|
|
// then we should make sure we don't lock using P1
|
|
|
|
// What we want:
|
|
// dont see P0, lock on P1 at R1, dont unlock using P0 at R2
|
|
func TestStateLockPOLSafety2(t *testing.T) {
|
|
cs1, vss := randConsensusState(4)
|
|
vs2, vs3, vs4 := vss[1], vss[2], vss[3]
|
|
|
|
partSize := cs1.state.ConsensusParams.BlockPartSizeBytes
|
|
|
|
proposalCh := subscribe(cs1.eventBus, types.EventQueryCompleteProposal)
|
|
timeoutProposeCh := subscribe(cs1.eventBus, types.EventQueryTimeoutPropose)
|
|
timeoutWaitCh := subscribe(cs1.eventBus, types.EventQueryTimeoutWait)
|
|
newRoundCh := subscribe(cs1.eventBus, types.EventQueryNewRound)
|
|
unlockCh := subscribe(cs1.eventBus, types.EventQueryUnlock)
|
|
voteCh := subscribeToVoter(cs1, cs1.privValidator.GetAddress())
|
|
|
|
// the block for R0: gets polkad but we miss it
|
|
// (even though we signed it, shhh)
|
|
_, propBlock0 := decideProposal(cs1, vss[0], cs1.Height, cs1.Round)
|
|
propBlockHash0 := propBlock0.Hash()
|
|
propBlockParts0 := propBlock0.MakePartSet(partSize)
|
|
|
|
// the others sign a polka but we don't see it
|
|
prevotes := signVotes(types.VoteTypePrevote, propBlockHash0, propBlockParts0.Header(), vs2, vs3, vs4)
|
|
|
|
// the block for round 1
|
|
prop1, propBlock1 := decideProposal(cs1, vs2, vs2.Height, vs2.Round+1)
|
|
propBlockHash1 := propBlock1.Hash()
|
|
propBlockParts1 := propBlock1.MakePartSet(partSize)
|
|
propBlockID1 := types.BlockID{propBlockHash1, propBlockParts1.Header()}
|
|
|
|
incrementRound(vs2, vs3, vs4)
|
|
|
|
cs1.updateRoundStep(0, cstypes.RoundStepPrecommitWait)
|
|
|
|
t.Log("### ONTO Round 1")
|
|
// jump in at round 1
|
|
height := cs1.Height
|
|
startTestRound(cs1, height, 1)
|
|
<-newRoundCh
|
|
|
|
if err := cs1.SetProposalAndBlock(prop1, propBlock1, propBlockParts1, "some peer"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
<-proposalCh
|
|
|
|
<-voteCh // prevote
|
|
|
|
signAddVotes(cs1, types.VoteTypePrevote, propBlockHash1, propBlockParts1.Header(), vs2, vs3, vs4)
|
|
|
|
<-voteCh // precommit
|
|
// the proposed block should now be locked and our precommit added
|
|
validatePrecommit(t, cs1, 1, 1, vss[0], propBlockHash1, propBlockHash1)
|
|
|
|
// add precommits from the rest
|
|
signAddVotes(cs1, types.VoteTypePrecommit, nil, types.PartSetHeader{}, vs2, vs4)
|
|
signAddVotes(cs1, types.VoteTypePrecommit, propBlockHash1, propBlockParts1.Header(), vs3)
|
|
|
|
incrementRound(vs2, vs3, vs4)
|
|
|
|
// timeout of precommit wait to new round
|
|
<-timeoutWaitCh
|
|
|
|
// in round 2 we see the polkad block from round 0
|
|
newProp := types.NewProposal(height, 2, propBlockParts0.Header(), 0, propBlockID1)
|
|
if err := vs3.SignProposal(config.ChainID(), newProp); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := cs1.SetProposalAndBlock(newProp, propBlock0, propBlockParts0, "some peer"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Add the pol votes
|
|
addVotes(cs1, prevotes...)
|
|
|
|
<-newRoundCh
|
|
t.Log("### ONTO Round 2")
|
|
/*Round2
|
|
// now we see the polka from round 1, but we shouldnt unlock
|
|
*/
|
|
|
|
select {
|
|
case <-timeoutProposeCh:
|
|
<-proposalCh
|
|
case <-proposalCh:
|
|
}
|
|
|
|
select {
|
|
case <-unlockCh:
|
|
panic("validator unlocked using an old polka")
|
|
case <-voteCh:
|
|
// prevote our locked block
|
|
}
|
|
validatePrevote(t, cs1, 2, vss[0], propBlockHash1)
|
|
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------
|
|
// SlashingSuite
|
|
// TODO: Slashing
|
|
|
|
/*
|
|
func TestStateSlashingPrevotes(t *testing.T) {
|
|
cs1, vss := randConsensusState(2)
|
|
vs2 := vss[1]
|
|
|
|
|
|
proposalCh := subscribe(cs1.eventBus, types.EventQueryCompleteProposal)
|
|
timeoutWaitCh := subscribe(cs1.eventBus, types.EventQueryTimeoutWait)
|
|
newRoundCh := subscribe(cs1.eventBus, types.EventQueryNewRound)
|
|
voteCh := subscribeToVoter(cs1, cs1.privValidator.GetAddress())
|
|
|
|
// start round and wait for propose and prevote
|
|
startTestRound(cs1, cs1.Height, 0)
|
|
<-newRoundCh
|
|
re := <-proposalCh
|
|
<-voteCh // prevote
|
|
|
|
rs := re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
|
|
|
|
// we should now be stuck in limbo forever, waiting for more prevotes
|
|
// add one for a different block should cause us to go into prevote wait
|
|
hash := rs.ProposalBlock.Hash()
|
|
hash[0] = byte(hash[0]+1) % 255
|
|
signAddVotes(cs1, types.VoteTypePrevote, hash, rs.ProposalBlockParts.Header(), vs2)
|
|
|
|
<-timeoutWaitCh
|
|
|
|
// NOTE: we have to send the vote for different block first so we don't just go into precommit round right
|
|
// away and ignore more prevotes (and thus fail to slash!)
|
|
|
|
// add the conflicting vote
|
|
signAddVotes(cs1, types.VoteTypePrevote, rs.ProposalBlock.Hash(), rs.ProposalBlockParts.Header(), vs2)
|
|
|
|
// XXX: Check for existence of Dupeout info
|
|
}
|
|
|
|
func TestStateSlashingPrecommits(t *testing.T) {
|
|
cs1, vss := randConsensusState(2)
|
|
vs2 := vss[1]
|
|
|
|
|
|
proposalCh := subscribe(cs1.eventBus, types.EventQueryCompleteProposal)
|
|
timeoutWaitCh := subscribe(cs1.eventBus, types.EventQueryTimeoutWait)
|
|
newRoundCh := subscribe(cs1.eventBus, types.EventQueryNewRound)
|
|
voteCh := subscribeToVoter(cs1, cs1.privValidator.GetAddress())
|
|
|
|
// start round and wait for propose and prevote
|
|
startTestRound(cs1, cs1.Height, 0)
|
|
<-newRoundCh
|
|
re := <-proposalCh
|
|
<-voteCh // prevote
|
|
|
|
// add prevote from vs2
|
|
signAddVotes(cs1, types.VoteTypePrevote, rs.ProposalBlock.Hash(), rs.ProposalBlockParts.Header(), vs2)
|
|
|
|
<-voteCh // precommit
|
|
|
|
// we should now be stuck in limbo forever, waiting for more prevotes
|
|
// add one for a different block should cause us to go into prevote wait
|
|
hash := rs.ProposalBlock.Hash()
|
|
hash[0] = byte(hash[0]+1) % 255
|
|
signAddVotes(cs1, types.VoteTypePrecommit, hash, rs.ProposalBlockParts.Header(), vs2)
|
|
|
|
// NOTE: we have to send the vote for different block first so we don't just go into precommit round right
|
|
// away and ignore more prevotes (and thus fail to slash!)
|
|
|
|
// add precommit from vs2
|
|
signAddVotes(cs1, types.VoteTypePrecommit, rs.ProposalBlock.Hash(), rs.ProposalBlockParts.Header(), vs2)
|
|
|
|
// XXX: Check for existence of Dupeout info
|
|
}
|
|
*/
|
|
|
|
//------------------------------------------------------------------------------------------
|
|
// CatchupSuite
|
|
|
|
//------------------------------------------------------------------------------------------
|
|
// HaltSuite
|
|
|
|
// 4 vals.
|
|
// we receive a final precommit after going into next round, but others might have gone to commit already!
|
|
func TestStateHalt1(t *testing.T) {
|
|
cs1, vss := randConsensusState(4)
|
|
vs2, vs3, vs4 := vss[1], vss[2], vss[3]
|
|
|
|
partSize := cs1.state.ConsensusParams.BlockPartSizeBytes
|
|
|
|
proposalCh := subscribe(cs1.eventBus, types.EventQueryCompleteProposal)
|
|
timeoutWaitCh := subscribe(cs1.eventBus, types.EventQueryTimeoutWait)
|
|
newRoundCh := subscribe(cs1.eventBus, types.EventQueryNewRound)
|
|
newBlockCh := subscribe(cs1.eventBus, types.EventQueryNewBlock)
|
|
voteCh := subscribeToVoter(cs1, cs1.privValidator.GetAddress())
|
|
|
|
// start round and wait for propose and prevote
|
|
startTestRound(cs1, cs1.Height, 0)
|
|
<-newRoundCh
|
|
re := <-proposalCh
|
|
rs := re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
|
|
propBlock := rs.ProposalBlock
|
|
propBlockParts := propBlock.MakePartSet(partSize)
|
|
|
|
<-voteCh // prevote
|
|
|
|
signAddVotes(cs1, types.VoteTypePrevote, propBlock.Hash(), propBlockParts.Header(), vs3, vs4)
|
|
<-voteCh // precommit
|
|
|
|
// the proposed block should now be locked and our precommit added
|
|
validatePrecommit(t, cs1, 0, 0, vss[0], propBlock.Hash(), propBlock.Hash())
|
|
|
|
// add precommits from the rest
|
|
signAddVotes(cs1, types.VoteTypePrecommit, nil, types.PartSetHeader{}, vs2) // didnt receive proposal
|
|
signAddVotes(cs1, types.VoteTypePrecommit, propBlock.Hash(), propBlockParts.Header(), vs3)
|
|
// we receive this later, but vs3 might receive it earlier and with ours will go to commit!
|
|
precommit4 := signVote(vs4, types.VoteTypePrecommit, propBlock.Hash(), propBlockParts.Header())
|
|
|
|
incrementRound(vs2, vs3, vs4)
|
|
|
|
// timeout to new round
|
|
<-timeoutWaitCh
|
|
re = <-newRoundCh
|
|
rs = re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
|
|
|
|
t.Log("### ONTO ROUND 1")
|
|
/*Round2
|
|
// we timeout and prevote our lock
|
|
// a polka happened but we didn't see it!
|
|
*/
|
|
|
|
// go to prevote, prevote for locked block
|
|
<-voteCh // prevote
|
|
validatePrevote(t, cs1, 0, vss[0], rs.LockedBlock.Hash())
|
|
|
|
// now we receive the precommit from the previous round
|
|
addVotes(cs1, precommit4)
|
|
|
|
// receiving that precommit should take us straight to commit
|
|
<-newBlockCh
|
|
re = <-newRoundCh
|
|
rs = re.(types.EventDataRoundState).RoundState.(*cstypes.RoundState)
|
|
|
|
if rs.Height != 2 {
|
|
panic("expected height to increment")
|
|
}
|
|
}
|
|
|
|
// subscribe subscribes test client to the given query and returns a channel with cap = 1.
|
|
func subscribe(eventBus *types.EventBus, q tmpubsub.Query) <-chan interface{} {
|
|
out := make(chan interface{}, 1)
|
|
err := eventBus.Subscribe(context.Background(), testSubscriber, q, out)
|
|
if err != nil {
|
|
panic(fmt.Sprintf("failed to subscribe %s to %v", testSubscriber, q))
|
|
}
|
|
return out
|
|
}
|
|
|
|
// discardFromChan reads n values from the channel.
|
|
func discardFromChan(ch <-chan interface{}, n int) {
|
|
for i := 0; i < n; i++ {
|
|
<-ch
|
|
}
|
|
}
|