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1177 lines
39 KiB
1177 lines
39 KiB
package consensus
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import (
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"bytes"
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"fmt"
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"testing"
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"time"
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_ "github.com/tendermint/tendermint/config/tendermint_test"
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"github.com/tendermint/tendermint/events"
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"github.com/tendermint/tendermint/types"
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)
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/*
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ProposeSuite
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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 fuill 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 init() {
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fmt.Println("")
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timeoutPropose = 1000 * time.Millisecond
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}
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// a non-validator should timeout into the prevote round
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func TestEnterProposeNoPrivValidator(t *testing.T) {
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css, _ := simpleConsensusState(1)
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cs := css[0]
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cs.SetPrivValidator(nil)
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timeoutChan := make(chan struct{})
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evsw := events.NewEventSwitch()
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evsw.OnStart()
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evsw.AddListenerForEvent("tester", types.EventStringTimeoutPropose(), func(data types.EventData) {
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timeoutChan <- struct{}{}
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})
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cs.SetFireable(evsw)
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// starts a go routine for EnterPropose
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cs.EnterNewRound(cs.Height, 0, false)
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// go to prevote
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<-cs.NewStepCh()
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// if we're not a validator, EnterPropose should timeout
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select {
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case rs := <-cs.NewStepCh():
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log.Info(rs.String())
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t.Fatal("Expected EnterPropose to timeout")
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case <-timeoutChan:
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rs := cs.GetRoundState()
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if rs.Proposal != nil {
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t.Error("Expected to make no proposal, since no privValidator")
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}
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break
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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 TestEnterPropose(t *testing.T) {
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css, _ := simpleConsensusState(1)
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cs := css[0]
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timeoutChan := make(chan struct{})
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evsw := events.NewEventSwitch()
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evsw.OnStart()
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evsw.AddListenerForEvent("tester", types.EventStringTimeoutPropose(), func(data types.EventData) {
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timeoutChan <- struct{}{}
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})
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cs.SetFireable(evsw)
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// starts a go routine for EnterPropose
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cs.EnterNewRound(cs.Height, 0, false)
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// go to prevote
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<-cs.NewStepCh()
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// if we are a validator, we expect it not to timeout
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select {
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case <-cs.NewStepCh():
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rs := cs.GetRoundState()
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// Check that Proposal, ProposalBlock, ProposalBlockParts are set.
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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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break
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case <-timeoutChan:
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t.Fatal("Expected EnterPropose not to timeout")
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}
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}
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func TestBadProposal(t *testing.T) {
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css, privVals := simpleConsensusState(2)
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cs1, cs2 := css[0], css[1]
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cs1.newStepCh = make(chan *RoundState) // so it blocks
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timeoutChan := make(chan struct{})
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evsw := events.NewEventSwitch()
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evsw.OnStart()
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evsw.AddListenerForEvent("tester", types.EventStringTimeoutPropose(), func(data types.EventData) {
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timeoutChan <- struct{}{}
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})
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evsw.AddListenerForEvent("tester", types.EventStringTimeoutWait(), func(data types.EventData) {
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timeoutChan <- struct{}{}
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})
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cs1.SetFireable(evsw)
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// make the second validator the proposer
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propBlock := changeProposer(t, cs1, cs2)
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// make the block bad by tampering with statehash
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stateHash := propBlock.StateHash
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stateHash[0] = byte((stateHash[0] + 1) % 255)
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propBlock.StateHash = stateHash
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propBlockParts := propBlock.MakePartSet()
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proposal := types.NewProposal(cs2.Height, cs2.Round, propBlockParts.Header(), cs2.Votes.POLRound())
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if err := cs2.privValidator.SignProposal(cs2.state.ChainID, proposal); err != nil {
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t.Fatal("failed to sign bad proposal", err)
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}
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// start round
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cs1.EnterNewRound(cs1.Height, 0, false)
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// now we're on a new round and not the proposer
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<-cs1.NewStepCh()
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// so set the proposal block (and fix voting power)
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cs1.mtx.Lock()
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cs1.Proposal, cs1.ProposalBlock, cs1.ProposalBlockParts = proposal, propBlock, propBlockParts
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fixVotingPower(t, cs1, privVals[1].Address)
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cs1.mtx.Unlock()
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// and wait for timeout
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<-timeoutChan
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// go to prevote, prevote for nil (proposal is bad)
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<-cs1.NewStepCh()
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validatePrevote(t, cs1, 0, privVals[0], nil)
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// add bad prevote from cs2. we should precommit nil
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signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, propBlock.Hash(), propBlock.MakePartSet().Header())
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_, _, _ = <-cs1.NewStepCh(), <-timeoutChan, <-cs1.NewStepCh()
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validatePrecommit(t, cs1, 0, 0, privVals[0], nil, nil)
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signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, propBlock.Hash(), propBlock.MakePartSet().Header())
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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 TestFullRound1(t *testing.T) {
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css, privVals := simpleConsensusState(1)
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cs := css[0]
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// starts a go routine for EnterPropose
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cs.EnterNewRound(cs.Height, 0, false)
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// wait to finish propose and prevote
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_, _ = <-cs.NewStepCh(), <-cs.NewStepCh()
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// we should now be in precommit
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// verify our prevote is there
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cs.mtx.Lock()
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propBlockHash := cs.ProposalBlock.Hash()
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cs.mtx.Unlock()
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// the proposed block should be prevoted, precommitted, and locked
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validatePrevoteAndPrecommit(t, cs, 0, 0, privVals[0], propBlockHash, propBlockHash, nil)
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}
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// nil is proposed, so prevote and precommit nil
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func TestFullRoundNil(t *testing.T) {
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css, privVals := simpleConsensusState(1)
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cs := css[0]
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cs.newStepCh = make(chan *RoundState) // so it blocks
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cs.SetPrivValidator(nil)
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timeoutChan := make(chan struct{})
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evsw := events.NewEventSwitch()
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evsw.OnStart()
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evsw.AddListenerForEvent("tester", types.EventStringTimeoutPropose(), func(data types.EventData) {
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timeoutChan <- struct{}{}
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})
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cs.SetFireable(evsw)
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// starts a go routine for EnterPropose
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cs.EnterNewRound(cs.Height, 0, false)
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// wait to finish propose (we should time out)
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<-cs.NewStepCh()
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cs.SetPrivValidator(privVals[0]) // this might be a race condition (uses the mutex that EnterPropose has just released and EnterPrevote is about to grab)
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<-timeoutChan
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// wait to finish prevote
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<-cs.NewStepCh()
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// should prevote and precommit nil
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validatePrevoteAndPrecommit(t, cs, 0, 0, privVals[0], nil, 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 TestFullRound2(t *testing.T) {
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css, privVals := simpleConsensusState(2)
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cs1, cs2 := css[0], css[1]
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cs1.newStepCh = make(chan *RoundState) // so it blocks
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cs2.newStepCh = make(chan *RoundState) // so it blocks
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// start round and wait for propose and prevote
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cs1.EnterNewRound(cs1.Height, 0, false)
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_, _ = <-cs1.NewStepCh(), <-cs1.NewStepCh()
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// we should now be stuck in limbo forever, waiting for more prevotes
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ensureNoNewStep(t, cs1)
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propBlockHash, propPartsHeader := cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header()
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// prevote arrives from cs2:
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signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, propBlockHash, propPartsHeader)
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// wait to finish precommit
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<-cs1.NewStepCh()
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// the proposed block should now be locked and our precommit added
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validatePrecommit(t, cs1, 0, 0, privVals[0], propBlockHash, propBlockHash)
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// we should now be stuck in limbo forever, waiting for more precommits
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ensureNoNewStep(t, cs1)
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// precommit arrives from cs2:
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signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, propBlockHash, propPartsHeader)
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// wait to finish commit, propose in next height
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_, rs := <-cs1.NewStepCh(), <-cs1.NewStepCh()
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if rs.Height != 2 {
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t.Fatal("Expected height to increment")
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}
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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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// val1 proposes the first 2 rounds, and is locked in the first.
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// val2 proposes the next two. val1 should precommit nil on all (except first where he locks)
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func TestLockNoPOL(t *testing.T) {
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css, privVals := simpleConsensusState(2)
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cs1, cs2 := css[0], css[1]
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cs1.newStepCh = make(chan *RoundState) // so it blocks
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timeoutChan := make(chan struct{})
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evsw := events.NewEventSwitch()
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evsw.OnStart()
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evsw.AddListenerForEvent("tester", types.EventStringTimeoutPropose(), func(data types.EventData) {
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timeoutChan <- struct{}{}
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})
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evsw.AddListenerForEvent("tester", types.EventStringTimeoutWait(), func(data types.EventData) {
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timeoutChan <- struct{}{}
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})
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cs1.SetFireable(evsw)
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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 propose and prevote
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cs1.EnterNewRound(cs1.Height, 0, false)
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_, _ = <-cs1.NewStepCh(), <-cs1.NewStepCh()
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// we should now be stuck in limbo forever, waiting for more prevotes
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// prevote arrives from cs2:
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signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
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cs1.mtx.Lock() // XXX: sigh
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theBlockHash := cs1.ProposalBlock.Hash()
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cs1.mtx.Unlock()
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// wait to finish precommit
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<-cs1.NewStepCh()
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// the proposed block should now be locked and our precommit added
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validatePrecommit(t, cs1, 0, 0, privVals[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 := cs1.ProposalBlock.Hash()
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hash[0] = byte((hash[0] + 1) % 255)
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signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, hash, cs1.ProposalBlockParts.Header())
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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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_, _ = <-cs1.NewStepCh(), <-timeoutChan
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log.Info("#### ONTO ROUND 2")
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/*
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Round2 (cs1, B) // B B2
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*/
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incrementRound(cs2)
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// go to prevote
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<-cs1.NewStepCh()
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// now we're on a new round and the proposer
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if cs1.ProposalBlock != cs1.LockedBlock {
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t.Fatalf("Expected proposal block to be locked block. Got %v, Expected %v", cs1.ProposalBlock, cs1.LockedBlock)
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}
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// wait to finish prevote
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<-cs1.NewStepCh()
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// we should have prevoted our locked block
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validatePrevote(t, cs1, 1, privVals[0], cs1.LockedBlock.Hash())
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// add a conflicting prevote from the other validator
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signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, hash, cs1.ProposalBlockParts.Header())
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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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_, _, _ = <-cs1.NewStepCh(), <-timeoutChan, <-cs1.NewStepCh()
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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, privVals[0], nil, theBlockHash)
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// add conflicting precommit from cs2
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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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signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, hash, cs1.ProposalBlockParts.Header())
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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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_, _ = <-cs1.NewStepCh(), <-timeoutChan
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log.Info("#### ONTO ROUND 3")
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/*
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Round3 (cs2, _) // B, B2
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*/
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incrementRound(cs2)
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// now we're on a new round and not the proposer, so wait for timeout
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_, _ = <-cs1.NewStepCh(), <-timeoutChan
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if cs1.ProposalBlock != nil {
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t.Fatal("Expected proposal block to be nil")
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}
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// go to prevote, prevote for locked block
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<-cs1.NewStepCh()
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validatePrevote(t, cs1, 0, privVals[0], cs1.LockedBlock.Hash())
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// TODO: quick fastforward to new round, set proposer
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signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, hash, cs1.ProposalBlockParts.Header())
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_, _, _ = <-cs1.NewStepCh(), <-timeoutChan, <-cs1.NewStepCh()
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validatePrecommit(t, cs1, 2, 0, privVals[0], nil, theBlockHash) // precommit nil but be locked on proposal
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signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, hash, cs1.ProposalBlockParts.Header()) // NOTE: conflicting precommits at same height
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<-cs1.NewStepCh()
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// before we time out into new round, set next proposer
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// and next proposal block
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_, v1 := cs1.Validators.GetByAddress(privVals[0].Address)
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v1.VotingPower = 1
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if updated := cs1.Validators.Update(v1); !updated {
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t.Fatal("failed to update validator")
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}
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cs2.decideProposal(cs2.Height, cs2.Round+1)
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prop, propBlock := cs2.Proposal, cs2.ProposalBlock
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if prop == nil || propBlock == nil {
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t.Fatal("Failed to create proposal block with cs2")
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}
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incrementRound(cs2)
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<-timeoutChan
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log.Info("#### ONTO ROUND 4")
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/*
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Round4 (cs2, 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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<-cs1.NewStepCh()
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// so set the proposal block
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cs1.mtx.Lock()
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cs1.Proposal, cs1.ProposalBlock = prop, propBlock
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cs1.mtx.Unlock()
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// and wait for timeout
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<-timeoutChan
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// go to prevote, prevote for locked block (not proposal)
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<-cs1.NewStepCh()
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validatePrevote(t, cs1, 0, privVals[0], cs1.LockedBlock.Hash())
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signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, propBlock.Hash(), propBlock.MakePartSet().Header())
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_, _, _ = <-cs1.NewStepCh(), <-timeoutChan, <-cs1.NewStepCh()
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validatePrecommit(t, cs1, 2, 0, privVals[0], nil, theBlockHash) // precommit nil but locked on proposal
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signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, propBlock.Hash(), propBlock.MakePartSet().Header()) // NOTE: conflicting precommits at same height
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}
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// 4 vals, one precommits, other 3 polka at next round, so we unlock and precomit the polka
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func TestLockPOLRelock(t *testing.T) {
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css, privVals := simpleConsensusState(4)
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cs1, cs2, cs3, cs4 := css[0], css[1], css[2], css[3]
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cs1.newStepCh = make(chan *RoundState) // so it blocks
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timeoutChan := make(chan *types.EventDataRoundState)
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voteChan := make(chan *types.EventDataVote)
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evsw := events.NewEventSwitch()
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evsw.OnStart()
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evsw.AddListenerForEvent("tester", types.EventStringTimeoutPropose(), func(data types.EventData) {
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timeoutChan <- data.(*types.EventDataRoundState)
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})
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evsw.AddListenerForEvent("tester", types.EventStringTimeoutWait(), func(data types.EventData) {
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timeoutChan <- data.(*types.EventDataRoundState)
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})
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evsw.AddListenerForEvent("tester", types.EventStringVote(), func(data types.EventData) {
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vote := data.(*types.EventDataVote)
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// we only fire for our own votes
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if bytes.Equal(cs1.privValidator.Address, vote.Address) {
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voteChan <- vote
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}
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})
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cs1.SetFireable(evsw)
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// everything done from perspective of cs1
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/*
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Round1 (cs1, B) // B B B B// B nil B nil
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eg. cs2 and cs4 didn't see the 2/3 prevotes
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*/
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|
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// start round and wait for propose and prevote
|
|
cs1.EnterNewRound(cs1.Height, 0, false)
|
|
_, _, _ = <-cs1.NewStepCh(), <-voteChan, <-cs1.NewStepCh()
|
|
|
|
theBlockHash := cs1.ProposalBlock.Hash()
|
|
|
|
// wait to finish precommit after prevotes done
|
|
// we do this in a go routine with another channel since otherwise
|
|
// we may get deadlock with EnterPrecommit waiting to send on newStepCh and the final
|
|
// signAddVoteToFrom waiting for the cs.mtx.Lock
|
|
donePrecommit := make(chan struct{})
|
|
go func() {
|
|
<-voteChan
|
|
<-cs1.NewStepCh()
|
|
donePrecommit <- struct{}{}
|
|
}()
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header(), cs2, cs3, cs4)
|
|
<-donePrecommit
|
|
|
|
// the proposed block should now be locked and our precommit added
|
|
validatePrecommit(t, cs1, 0, 0, privVals[0], theBlockHash, theBlockHash)
|
|
|
|
donePrecommitWait := make(chan struct{})
|
|
go func() {
|
|
// (note we're entering precommit for a second time this round)
|
|
// but with invalid args. then we EnterPrecommitWait, twice (?)
|
|
<-cs1.NewStepCh()
|
|
donePrecommitWait <- struct{}{}
|
|
}()
|
|
// add precommits from the rest
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs4)
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs3, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
|
|
<-donePrecommitWait
|
|
|
|
// before we time out into new round, set next proposer
|
|
// and next proposal block
|
|
_, v1 := cs1.Validators.GetByAddress(privVals[0].Address)
|
|
v1.VotingPower = 1
|
|
if updated := cs1.Validators.Update(v1); !updated {
|
|
t.Fatal("failed to update validator")
|
|
}
|
|
|
|
cs2.decideProposal(cs2.Height, cs2.Round+1)
|
|
prop, propBlock := cs2.Proposal, cs2.ProposalBlock
|
|
if prop == nil || propBlock == nil {
|
|
t.Fatal("Failed to create proposal block with cs2")
|
|
}
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
// timeout to new round
|
|
te := <-timeoutChan
|
|
if te.Step != RoundStepPrecommitWait.String() {
|
|
t.Fatalf("expected to timeout of precommit into new round. got %v", te.Step)
|
|
}
|
|
|
|
log.Info("### ONTO ROUND 2")
|
|
|
|
/*
|
|
Round2 (cs2, C) // B C C C // C C C _)
|
|
|
|
cs1 changes lock!
|
|
*/
|
|
|
|
// now we're on a new round and not the proposer
|
|
<-cs1.NewStepCh()
|
|
cs1.mtx.Lock()
|
|
// so set the proposal block
|
|
propBlockHash, propBlockParts := propBlock.Hash(), propBlock.MakePartSet()
|
|
cs1.Proposal, cs1.ProposalBlock, cs1.ProposalBlockParts = prop, propBlock, propBlockParts
|
|
cs1.mtx.Unlock()
|
|
// and wait for timeout
|
|
te = <-timeoutChan
|
|
if te.Step != RoundStepPropose.String() {
|
|
t.Fatalf("expected to timeout of propose. got %v", te.Step)
|
|
}
|
|
// go to prevote, prevote for locked block (not proposal), move on
|
|
_, _ = <-voteChan, <-cs1.NewStepCh()
|
|
validatePrevote(t, cs1, 0, privVals[0], theBlockHash)
|
|
|
|
donePrecommit = make(chan struct{})
|
|
go func() {
|
|
// we need this go routine because if we go into PrevoteWait it has to pull on newStepCh
|
|
// before the final vote will get added (because it holds the mutex).
|
|
select {
|
|
case <-cs1.NewStepCh(): // we're in PrevoteWait, go to Precommit
|
|
<-voteChan
|
|
case <-voteChan: // we went straight to Precommit
|
|
}
|
|
donePrecommit <- struct{}{}
|
|
}()
|
|
// now lets add prevotes from everyone else for the new block
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, propBlockHash, propBlockParts.Header(), cs2, cs3, cs4)
|
|
<-donePrecommit
|
|
|
|
// we should have unlocked and locked on the new block
|
|
validatePrecommit(t, cs1, 1, 1, privVals[0], propBlockHash, propBlockHash)
|
|
|
|
donePrecommitWait = make(chan struct{})
|
|
go func() {
|
|
// (note we're entering precommit for a second time this round)
|
|
// but with invalid args. then we EnterPrecommitWait,
|
|
<-cs1.NewStepCh()
|
|
donePrecommitWait <- struct{}{}
|
|
}()
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, propBlockHash, propBlockParts.Header(), cs2, cs3)
|
|
<-donePrecommitWait
|
|
|
|
<-cs1.NewStepCh()
|
|
rs := <-cs1.NewStepCh()
|
|
if rs.Height != 2 {
|
|
t.Fatal("Expected height to increment")
|
|
}
|
|
|
|
if hash, _, ok := rs.LastCommit.TwoThirdsMajority(); !ok || !bytes.Equal(hash, propBlockHash) {
|
|
t.Fatal("Expected block to get committed")
|
|
}
|
|
}
|
|
|
|
// 4 vals, one precommits, other 3 polka at next round, so we unlock and precomit the polka
|
|
func TestLockPOLUnlock(t *testing.T) {
|
|
css, privVals := simpleConsensusState(4)
|
|
cs1, cs2, cs3, cs4 := css[0], css[1], css[2], css[3]
|
|
cs1.newStepCh = make(chan *RoundState) // so it blocks
|
|
|
|
timeoutChan := make(chan *types.EventDataRoundState)
|
|
voteChan := make(chan *types.EventDataVote)
|
|
evsw := events.NewEventSwitch()
|
|
evsw.OnStart()
|
|
evsw.AddListenerForEvent("tester", types.EventStringTimeoutPropose(), func(data types.EventData) {
|
|
timeoutChan <- data.(*types.EventDataRoundState)
|
|
})
|
|
evsw.AddListenerForEvent("tester", types.EventStringTimeoutWait(), func(data types.EventData) {
|
|
timeoutChan <- data.(*types.EventDataRoundState)
|
|
})
|
|
evsw.AddListenerForEvent("tester", types.EventStringVote(), func(data types.EventData) {
|
|
vote := data.(*types.EventDataVote)
|
|
// we only fire for our own votes
|
|
if bytes.Equal(cs1.privValidator.Address, vote.Address) {
|
|
voteChan <- vote
|
|
}
|
|
})
|
|
cs1.SetFireable(evsw)
|
|
|
|
// 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
|
|
cs1.EnterNewRound(cs1.Height, 0, false)
|
|
_, _, _ = <-cs1.NewStepCh(), <-voteChan, <-cs1.NewStepCh()
|
|
|
|
theBlockHash := cs1.ProposalBlock.Hash()
|
|
|
|
donePrecommit := make(chan struct{})
|
|
go func() {
|
|
<-voteChan
|
|
<-cs1.NewStepCh()
|
|
donePrecommit <- struct{}{}
|
|
}()
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header(), cs2, cs3, cs4)
|
|
<-donePrecommit
|
|
|
|
// the proposed block should now be locked and our precommit added
|
|
validatePrecommit(t, cs1, 0, 0, privVals[0], theBlockHash, theBlockHash)
|
|
|
|
donePrecommitWait := make(chan struct{})
|
|
go func() {
|
|
<-cs1.NewStepCh()
|
|
donePrecommitWait <- struct{}{}
|
|
}()
|
|
// add precommits from the rest
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs4)
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs3, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
|
|
<-donePrecommitWait
|
|
|
|
// before we time out into new round, set next proposer
|
|
// and next proposal block
|
|
_, v1 := cs1.Validators.GetByAddress(privVals[0].Address)
|
|
v1.VotingPower = 1
|
|
if updated := cs1.Validators.Update(v1); !updated {
|
|
t.Fatal("failed to update validator")
|
|
}
|
|
|
|
cs2.decideProposal(cs2.Height, cs2.Round+1)
|
|
prop, propBlock := cs2.Proposal, cs2.ProposalBlock
|
|
if prop == nil || propBlock == nil {
|
|
t.Fatal("Failed to create proposal block with cs2")
|
|
}
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
// timeout to new round
|
|
<-timeoutChan
|
|
|
|
log.Info("#### ONTO ROUND 2")
|
|
/*
|
|
Round2 (cs2, C) // B nil nil nil // nil nil nil _
|
|
|
|
cs1 unlocks!
|
|
*/
|
|
|
|
// now we're on a new round and not the proposer,
|
|
<-cs1.NewStepCh()
|
|
cs1.mtx.Lock()
|
|
// so set the proposal block
|
|
cs1.Proposal, cs1.ProposalBlock, cs1.ProposalBlockParts = prop, propBlock, propBlock.MakePartSet()
|
|
lockedBlockHash := cs1.LockedBlock.Hash()
|
|
cs1.mtx.Unlock()
|
|
// and wait for timeout
|
|
<-timeoutChan
|
|
|
|
// go to prevote, prevote for locked block (not proposal)
|
|
_, _ = <-voteChan, <-cs1.NewStepCh()
|
|
validatePrevote(t, cs1, 0, privVals[0], lockedBlockHash)
|
|
|
|
donePrecommit = make(chan struct{})
|
|
go func() {
|
|
select {
|
|
case <-cs1.NewStepCh(): // we're in PrevoteWait, go to Precommit
|
|
<-voteChan
|
|
case <-voteChan: // we went straight to Precommit
|
|
}
|
|
donePrecommit <- struct{}{}
|
|
}()
|
|
// now lets add prevotes from everyone else for the new block
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, nil, types.PartSetHeader{}, cs2, cs3, cs4)
|
|
<-donePrecommit
|
|
|
|
// we should have unlocked
|
|
// NOTE: we don't lock on nil, so LockedRound is still 0
|
|
validatePrecommit(t, cs1, 1, 0, privVals[0], nil, nil)
|
|
|
|
donePrecommitWait = make(chan struct{})
|
|
go func() {
|
|
// the votes will bring us to new round right away
|
|
// we should timeout of it
|
|
_, _, _ = <-cs1.NewStepCh(), <-cs1.NewStepCh(), <-timeoutChan
|
|
donePrecommitWait <- struct{}{}
|
|
}()
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs3)
|
|
<-donePrecommitWait
|
|
}
|
|
|
|
// 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 TestLockPOLSafety1(t *testing.T) {
|
|
css, privVals := simpleConsensusState(4)
|
|
cs1, cs2, cs3, cs4 := css[0], css[1], css[2], css[3]
|
|
cs1.newStepCh = make(chan *RoundState) // so it blocks
|
|
|
|
timeoutChan := make(chan *types.EventDataRoundState)
|
|
voteChan := make(chan *types.EventDataVote)
|
|
evsw := events.NewEventSwitch()
|
|
evsw.OnStart()
|
|
evsw.AddListenerForEvent("tester", types.EventStringTimeoutPropose(), func(data types.EventData) {
|
|
timeoutChan <- data.(*types.EventDataRoundState)
|
|
})
|
|
evsw.AddListenerForEvent("tester", types.EventStringTimeoutWait(), func(data types.EventData) {
|
|
timeoutChan <- data.(*types.EventDataRoundState)
|
|
})
|
|
evsw.AddListenerForEvent("tester", types.EventStringVote(), func(data types.EventData) {
|
|
vote := data.(*types.EventDataVote)
|
|
// we only fire for our own votes
|
|
if bytes.Equal(cs1.privValidator.Address, vote.Address) {
|
|
voteChan <- vote
|
|
}
|
|
})
|
|
cs1.SetFireable(evsw)
|
|
|
|
// start round and wait for propose and prevote
|
|
cs1.EnterNewRound(cs1.Height, 0, false)
|
|
_, _, _ = <-cs1.NewStepCh(), <-voteChan, <-cs1.NewStepCh()
|
|
|
|
propBlock := cs1.ProposalBlock
|
|
|
|
validatePrevote(t, cs1, 0, privVals[0], cs1.ProposalBlock.Hash())
|
|
|
|
// the others sign a polka but we don't see it
|
|
prevotes := signVoteMany(types.VoteTypePrevote, propBlock.Hash(), propBlock.MakePartSet().Header(), cs2, cs3, cs4)
|
|
|
|
// before we time out into new round, set next proposer
|
|
// and next proposal block
|
|
_, v1 := cs1.Validators.GetByAddress(privVals[0].Address)
|
|
v1.VotingPower = 1
|
|
if updated := cs1.Validators.Update(v1); !updated {
|
|
t.Fatal("failed to update validator")
|
|
}
|
|
|
|
log.Warn("old prop", "hash", fmt.Sprintf("%X", propBlock.Hash()))
|
|
|
|
// we do see them precommit nil
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs3, cs4)
|
|
|
|
cs2.decideProposal(cs2.Height, cs2.Round+1)
|
|
prop, propBlock := cs2.Proposal, cs2.ProposalBlock
|
|
if prop == nil || propBlock == nil {
|
|
t.Fatal("Failed to create proposal block with cs2")
|
|
}
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
log.Info("### ONTO ROUND 2")
|
|
/*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,
|
|
<-cs1.NewStepCh()
|
|
// so set proposal
|
|
cs1.mtx.Lock()
|
|
propBlockHash, propBlockParts := propBlock.Hash(), propBlock.MakePartSet()
|
|
cs1.Proposal, cs1.ProposalBlock, cs1.ProposalBlockParts = prop, propBlock, propBlockParts
|
|
cs1.mtx.Unlock()
|
|
// and wait for timeout
|
|
<-timeoutChan
|
|
if cs1.LockedBlock != nil {
|
|
t.Fatal("we should not be locked!")
|
|
}
|
|
log.Warn("new prop", "hash", fmt.Sprintf("%X", propBlockHash))
|
|
// go to prevote, prevote for proposal block
|
|
_, _ = <-voteChan, <-cs1.NewStepCh()
|
|
validatePrevote(t, cs1, 1, privVals[0], propBlockHash)
|
|
|
|
// now we see the others prevote for it, so we should lock on it
|
|
donePrecommit := make(chan struct{})
|
|
go func() {
|
|
select {
|
|
case <-cs1.NewStepCh(): // we're in PrevoteWait, go to Precommit
|
|
<-voteChan
|
|
case <-voteChan: // we went straight to Precommit
|
|
}
|
|
<-cs1.NewStepCh()
|
|
donePrecommit <- struct{}{}
|
|
}()
|
|
// now lets add prevotes from everyone else for nil
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, propBlockHash, propBlockParts.Header(), cs2, cs3, cs4)
|
|
<-donePrecommit
|
|
|
|
// we should have precommitted
|
|
validatePrecommit(t, cs1, 1, 1, privVals[0], propBlockHash, propBlockHash)
|
|
|
|
// now we see precommits for nil
|
|
donePrecommitWait := make(chan struct{})
|
|
go func() {
|
|
// the votes will bring us to new round
|
|
// we should timeut of it and go to prevote
|
|
<-cs1.NewStepCh()
|
|
<-timeoutChan
|
|
donePrecommitWait <- struct{}{}
|
|
}()
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs3)
|
|
<-donePrecommitWait
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
log.Info("### ONTO ROUND 3")
|
|
/*Round3
|
|
we see the polka from round 1 but we shouldn't unlock!
|
|
*/
|
|
|
|
// timeout of propose
|
|
_, _ = <-cs1.NewStepCh(), <-timeoutChan
|
|
|
|
// finish prevote
|
|
_, _ = <-voteChan, <-cs1.NewStepCh()
|
|
|
|
// we should prevote what we're locked on
|
|
validatePrevote(t, cs1, 2, privVals[0], propBlockHash)
|
|
|
|
// add prevotes from the earlier round
|
|
addVoteToFromMany(cs1, prevotes, cs2, cs3, cs4)
|
|
|
|
log.Warn("Done adding prevotes!")
|
|
|
|
ensureNoNewStep(t, cs1)
|
|
}
|
|
|
|
// 4 vals.
|
|
// polka P1 at R1, P2 at R2, and P3 at R3,
|
|
// we lock on P1 at R1, don't see P2, and unlock using P3 at R3
|
|
// then we should make sure we don't lock using P2
|
|
func TestLockPOLSafety2(t *testing.T) {
|
|
css, privVals := simpleConsensusState(4)
|
|
cs1, cs2, cs3, cs4 := css[0], css[1], css[2], css[3]
|
|
cs1.newStepCh = make(chan *RoundState) // so it blocks
|
|
|
|
timeoutChan := make(chan *types.EventDataRoundState)
|
|
voteChan := make(chan *types.EventDataVote)
|
|
evsw := events.NewEventSwitch()
|
|
evsw.OnStart()
|
|
evsw.AddListenerForEvent("tester", types.EventStringTimeoutPropose(), func(data types.EventData) {
|
|
timeoutChan <- data.(*types.EventDataRoundState)
|
|
})
|
|
evsw.AddListenerForEvent("tester", types.EventStringTimeoutWait(), func(data types.EventData) {
|
|
timeoutChan <- data.(*types.EventDataRoundState)
|
|
})
|
|
evsw.AddListenerForEvent("tester", types.EventStringVote(), func(data types.EventData) {
|
|
vote := data.(*types.EventDataVote)
|
|
// we only fire for our own votes
|
|
if bytes.Equal(cs1.privValidator.Address, vote.Address) {
|
|
voteChan <- vote
|
|
}
|
|
})
|
|
cs1.SetFireable(evsw)
|
|
|
|
// start round and wait for propose and prevote
|
|
cs1.EnterNewRound(cs1.Height, 0, false)
|
|
_, _, _ = <-cs1.NewStepCh(), <-voteChan, <-cs1.NewStepCh()
|
|
|
|
theBlockHash := cs1.ProposalBlock.Hash()
|
|
|
|
donePrecommit := make(chan struct{})
|
|
go func() {
|
|
<-voteChan
|
|
<-cs1.NewStepCh()
|
|
donePrecommit <- struct{}{}
|
|
}()
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header(), cs2, cs3, cs4)
|
|
<-donePrecommit
|
|
|
|
// the proposed block should now be locked and our precommit added
|
|
validatePrecommit(t, cs1, 0, 0, privVals[0], theBlockHash, theBlockHash)
|
|
|
|
donePrecommitWait := make(chan struct{})
|
|
go func() {
|
|
<-cs1.NewStepCh()
|
|
donePrecommitWait <- struct{}{}
|
|
}()
|
|
// add precommits from the rest
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs4)
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs3, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
|
|
<-donePrecommitWait
|
|
|
|
// before we time out into new round, set next proposer
|
|
// and next proposal block
|
|
_, v1 := cs1.Validators.GetByAddress(privVals[0].Address)
|
|
v1.VotingPower = 1
|
|
if updated := cs1.Validators.Update(v1); !updated {
|
|
t.Fatal("failed to update validator")
|
|
}
|
|
|
|
cs2.decideProposal(cs2.Height, cs2.Round+1)
|
|
prop, propBlock := cs2.Proposal, cs2.ProposalBlock
|
|
if prop == nil || propBlock == nil {
|
|
t.Fatal("Failed to create proposal block with cs2")
|
|
}
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
// timeout to new round
|
|
<-timeoutChan
|
|
|
|
log.Info("### ONTO Round 2")
|
|
/*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, so wait for timeout
|
|
_, _ = <-cs1.NewStepCh(), <-timeoutChan
|
|
// go to prevote, prevote for locked block
|
|
_, _ = <-voteChan, <-cs1.NewStepCh()
|
|
validatePrevote(t, cs1, 0, privVals[0], cs1.LockedBlock.Hash())
|
|
|
|
// the others sign a polka but we don't see it
|
|
prevotes := signVoteMany(types.VoteTypePrevote, propBlock.Hash(), propBlock.MakePartSet().Header(), cs2, cs3, cs4)
|
|
|
|
// once we see prevotes for the next round we'll skip ahead
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
log.Info("### ONTO Round 3")
|
|
/*Round3
|
|
a polka for nil causes us to unlock
|
|
*/
|
|
|
|
// these prevotes will send us straight to precommit at the higher round
|
|
donePrecommit = make(chan struct{})
|
|
go func() {
|
|
select {
|
|
case <-cs1.NewStepCh(): // we're in PrevoteWait, go to Precommit
|
|
<-voteChan
|
|
case <-voteChan: // we went straight to Precommit
|
|
}
|
|
<-cs1.NewStepCh()
|
|
donePrecommit <- struct{}{}
|
|
}()
|
|
// now lets add prevotes from everyone else for nil
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, nil, types.PartSetHeader{}, cs2, cs3, cs4)
|
|
<-donePrecommit
|
|
|
|
// we should have unlocked
|
|
// NOTE: we don't lock on nil, so LockedRound is still 0
|
|
validatePrecommit(t, cs1, 2, 0, privVals[0], nil, nil)
|
|
|
|
donePrecommitWait = make(chan struct{})
|
|
go func() {
|
|
// the votes will bring us to new round right away
|
|
// we should timeut of it and go to prevote
|
|
<-cs1.NewStepCh()
|
|
// set the proposal block to be that which got a polka in R2
|
|
cs1.mtx.Lock()
|
|
cs1.Proposal, cs1.ProposalBlock, cs1.ProposalBlockParts = prop, propBlock, propBlock.MakePartSet()
|
|
cs1.mtx.Unlock()
|
|
// timeout into prevote, finish prevote
|
|
_, _, _ = <-timeoutChan, <-voteChan, <-cs1.NewStepCh()
|
|
donePrecommitWait <- struct{}{}
|
|
}()
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs3)
|
|
<-donePrecommitWait
|
|
|
|
log.Info("### ONTO ROUND 4")
|
|
/*Round4
|
|
we see the polka from R2
|
|
make sure we don't lock because of it!
|
|
*/
|
|
// new round and not proposer
|
|
// (we already timed out and stepped into prevote)
|
|
|
|
log.Warn("adding prevotes from round 2")
|
|
|
|
addVoteToFromMany(cs1, prevotes, cs2, cs3, cs4)
|
|
|
|
log.Warn("Done adding prevotes!")
|
|
|
|
// we should prevote it now
|
|
validatePrevote(t, cs1, 3, privVals[0], cs1.ProposalBlock.Hash())
|
|
|
|
// but we shouldn't precommit it
|
|
precommits := cs1.Votes.Precommits(3)
|
|
vote := precommits.GetByIndex(0)
|
|
if vote != nil {
|
|
t.Fatal("validator precommitted at round 4 based on an old polka")
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------
|
|
// SlashingSuite
|
|
|
|
func TestSlashingPrevotes(t *testing.T) {
|
|
css, _ := simpleConsensusState(2)
|
|
cs1, cs2 := css[0], css[1]
|
|
cs1.newStepCh = make(chan *RoundState) // so it blocks
|
|
|
|
// start round and wait for propose and prevote
|
|
cs1.EnterNewRound(cs1.Height, 0, false)
|
|
_, _ = <-cs1.NewStepCh(), <-cs1.NewStepCh()
|
|
|
|
// 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 := cs1.ProposalBlock.Hash()
|
|
hash[0] = byte(hash[0]+1) % 255
|
|
signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, hash, cs1.ProposalBlockParts.Header())
|
|
|
|
// pass prevote wait
|
|
<-cs1.NewStepCh()
|
|
|
|
// 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
|
|
signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
|
|
|
|
// conflicting vote should cause us to broadcast dupeout tx on mempool
|
|
txs := cs1.mempoolReactor.Mempool.GetProposalTxs()
|
|
if len(txs) != 1 {
|
|
t.Fatal("expected to find a transaction in the mempool after double signing")
|
|
}
|
|
dupeoutTx, ok := txs[0].(*types.DupeoutTx)
|
|
if !ok {
|
|
t.Fatal("expected to find DupeoutTx in mempool after double signing")
|
|
}
|
|
|
|
if !bytes.Equal(dupeoutTx.Address, cs2.privValidator.Address) {
|
|
t.Fatalf("expected DupeoutTx for %X, got %X", cs2.privValidator.Address, dupeoutTx.Address)
|
|
}
|
|
|
|
// TODO: validate the sig
|
|
}
|
|
|
|
func TestSlashingPrecommits(t *testing.T) {
|
|
css, _ := simpleConsensusState(2)
|
|
cs1, cs2 := css[0], css[1]
|
|
cs1.newStepCh = make(chan *RoundState) // so it blocks
|
|
|
|
// start round and wait for propose and prevote
|
|
cs1.EnterNewRound(cs1.Height, 0, false)
|
|
_, _ = <-cs1.NewStepCh(), <-cs1.NewStepCh()
|
|
|
|
// add prevote from cs2
|
|
signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
|
|
|
|
// wait to finish precommit
|
|
<-cs1.NewStepCh()
|
|
|
|
// 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 := cs1.ProposalBlock.Hash()
|
|
hash[0] = byte(hash[0]+1) % 255
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, hash, cs1.ProposalBlockParts.Header())
|
|
|
|
// pass prevote wait
|
|
<-cs1.NewStepCh()
|
|
|
|
// 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 cs2
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
|
|
|
|
// conflicting vote should cause us to broadcast dupeout tx on mempool
|
|
txs := cs1.mempoolReactor.Mempool.GetProposalTxs()
|
|
if len(txs) != 1 {
|
|
t.Fatal("expected to find a transaction in the mempool after double signing")
|
|
}
|
|
dupeoutTx, ok := txs[0].(*types.DupeoutTx)
|
|
if !ok {
|
|
t.Fatal("expected to find DupeoutTx in mempool after double signing")
|
|
}
|
|
|
|
if !bytes.Equal(dupeoutTx.Address, cs2.privValidator.Address) {
|
|
t.Fatalf("expected DupeoutTx for %X, got %X", cs2.privValidator.Address, dupeoutTx.Address)
|
|
}
|
|
|
|
// TODO: validate the sig
|
|
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------
|
|
// CatchupSuite
|
|
|
|
//------------------------------------------------------------------------------------------
|
|
// HaltSuite
|
|
|
|
// 4 vals.
|
|
// we receive a final precommit after going into next round, but others might have gone to commit already!
|
|
func TestHalt1(t *testing.T) {
|
|
css, privVals := simpleConsensusState(4)
|
|
cs1, cs2, cs3, cs4 := css[0], css[1], css[2], css[3]
|
|
cs1.newStepCh = make(chan *RoundState) // so it blocks
|
|
|
|
timeoutChan := make(chan struct{})
|
|
evsw := events.NewEventSwitch()
|
|
evsw.OnStart()
|
|
evsw.AddListenerForEvent("tester", types.EventStringTimeoutWait(), func(data types.EventData) {
|
|
timeoutChan <- struct{}{}
|
|
})
|
|
cs1.SetFireable(evsw)
|
|
|
|
// start round and wait for propose and prevote
|
|
cs1.EnterNewRound(cs1.Height, 0, false)
|
|
_, _ = <-cs1.NewStepCh(), <-cs1.NewStepCh()
|
|
|
|
theBlockHash := cs1.ProposalBlock.Hash()
|
|
|
|
donePrecommit := make(chan struct{})
|
|
go func() {
|
|
<-cs1.NewStepCh()
|
|
donePrecommit <- struct{}{}
|
|
}()
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header(), cs3, cs4)
|
|
<-donePrecommit
|
|
|
|
// the proposed block should now be locked and our precommit added
|
|
validatePrecommit(t, cs1, 0, 0, privVals[0], theBlockHash, theBlockHash)
|
|
|
|
donePrecommitWait := make(chan struct{})
|
|
go func() {
|
|
<-cs1.NewStepCh()
|
|
donePrecommitWait <- struct{}{}
|
|
}()
|
|
// add precommits from the rest
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, nil, types.PartSetHeader{}) // didnt receive proposal
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs3, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
|
|
// we receive this later, but cs3 might receive it earlier and with ours will go to commit!
|
|
precommit4 := signVote(cs4, types.VoteTypePrecommit, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
|
|
<-donePrecommitWait
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
// timeout to new round
|
|
<-timeoutChan
|
|
|
|
log.Info("### ONTO ROUND 2")
|
|
/*Round2
|
|
// we timeout and prevote our lock
|
|
// a polka happened but we didn't see it!
|
|
*/
|
|
|
|
// go to prevote, prevote for locked block
|
|
_, _ = <-cs1.NewStepCh(), <-cs1.NewStepCh()
|
|
validatePrevote(t, cs1, 0, privVals[0], cs1.LockedBlock.Hash())
|
|
|
|
// now we receive the precommit from the previous round
|
|
addVoteToFrom(cs1, cs4, precommit4)
|
|
|
|
// receiving that precommit should take us straight to commit
|
|
ensureNewStep(t, cs1)
|
|
log.Warn("done enter commit!")
|
|
|
|
// update to state
|
|
ensureNewStep(t, cs1)
|
|
|
|
if cs1.Height != 2 {
|
|
t.Fatal("expected height to increment")
|
|
}
|
|
}
|