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1030 lines
34 KiB
1030 lines
34 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 * 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 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 = 500 * time.Millisecond
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}
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func TestProposerSelection0(t *testing.T) {
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cs1, vss := simpleConsensusState(4)
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height, round := cs1.Height, cs1.Round
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newRoundCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewRound(), 1)
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proposalCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringCompleteProposal(), 0)
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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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// lets commit a block and ensure proposer for the next height is correct
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prop := cs1.GetRoundState().Validators.Proposer()
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if !bytes.Equal(prop.Address, cs1.privValidator.Address) {
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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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signAddVoteToFromMany(types.VoteTypePrecommit, cs1, 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.Proposer()
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if !bytes.Equal(prop.Address, vss[1].Address) {
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t.Fatalf("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 TestProposerSelection2(t *testing.T) {
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cs1, vss := simpleConsensusState(4) // test needs more work for more than 3 validators
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newRoundCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewRound(), 1)
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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.Proposer()
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if !bytes.Equal(prop.Address, vss[(i+2)%len(vss)].Address) {
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t.Fatalf("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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signAddVoteToFromMany(types.VoteTypePrecommit, cs1, 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 TestEnterProposeNoPrivValidator(t *testing.T) {
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cs, _ := simpleConsensusState(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 := cs.evsw.SubscribeToEvent("tester", types.EventStringTimeoutPropose(), 0)
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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(timeoutPropose * 2)
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select {
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case <-timeoutCh:
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case <-ticker.C:
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t.Fatal("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 TestEnterProposeYesPrivValidator(t *testing.T) {
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cs, _ := simpleConsensusState(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 := cs.evsw.SubscribeToEvent("tester", types.EventStringTimeoutPropose(), 0)
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proposalCh := cs.evsw.SubscribeToEvent("tester", types.EventStringCompleteProposal(), 0)
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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(timeoutPropose * 2)
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select {
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case <-timeoutCh:
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t.Fatal("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 TestBadProposal(t *testing.T) {
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cs1, vss := simpleConsensusState(2)
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height, round := cs1.Height, cs1.Round
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cs2 := vss[1]
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proposalCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringCompleteProposal(), 0)
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voteCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringVote(), 0)
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propBlock, _ := cs1.createProposalBlock() //changeProposer(t, cs1, cs2)
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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()
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proposal := types.NewProposal(cs2.Height, round, propBlockParts.Header(), -1)
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if err := cs2.SignProposal(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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cs1.SetProposalAndBlock(proposal, propBlock, propBlockParts, "some peer")
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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 cs2 and wait for it
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signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, propBlock.Hash(), propBlock.MakePartSet().Header())
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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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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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cs, vss := simpleConsensusState(1)
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height, round := cs.Height, cs.Round
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voteCh := cs.evsw.SubscribeToEvent("tester", types.EventStringVote(), 0)
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propCh := cs.evsw.SubscribeToEvent("tester", types.EventStringCompleteProposal(), 0)
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newRoundCh := cs.evsw.SubscribeToEvent("tester", types.EventStringNewRound(), 1)
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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().(*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 TestFullRoundNil(t *testing.T) {
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cs, vss := simpleConsensusState(1)
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height, round := cs.Height, cs.Round
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voteCh := cs.evsw.SubscribeToEvent("tester", types.EventStringVote(), 0)
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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 TestFullRound2(t *testing.T) {
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cs1, vss := simpleConsensusState(2)
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cs2 := vss[1]
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height, round := cs1.Height, cs1.Round
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voteCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringVote(), 0)
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newBlockCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewBlock(), 0)
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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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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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<-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 cs2:
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signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, propBlockHash, propPartsHeader)
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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 TestLockNoPOL(t *testing.T) {
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cs1, vss := simpleConsensusState(2)
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cs2 := vss[1]
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height := cs1.Height
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timeoutProposeCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringTimeoutPropose(), 0)
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timeoutWaitCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringTimeoutWait(), 0)
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voteCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringVote(), 0)
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proposalCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringCompleteProposal(), 0)
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newRoundCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewRound(), 1)
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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().(*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 cs2:
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signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
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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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signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, hash, rs.ProposalBlock.MakePartSet().Header())
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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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log.Notice("#### 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(cs2)
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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().(*RoundState)
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if rs.ProposalBlock != nil {
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t.Fatal("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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signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, hash, rs.ProposalBlock.MakePartSet().Header())
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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 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, rs.ProposalBlock.MakePartSet().Header())
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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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log.Notice("#### ONTO ROUND 2")
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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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re = <-proposalCh
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rs = re.(*types.EventDataRoundState).RoundState().(*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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t.Fatalf("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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signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, hash, rs.ProposalBlock.MakePartSet().Header())
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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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signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, hash, rs.ProposalBlock.MakePartSet().Header()) // 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, cs2, cs2.Height, cs2.Round+1)
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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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<-newRoundCh
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log.Notice("#### ONTO ROUND 3")
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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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// so set the proposal block
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cs1.SetProposalAndBlock(prop, propBlock, propBlock.MakePartSet(), "")
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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())
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signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, propBlock.Hash(), propBlock.MakePartSet().Header())
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<-voteCh
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<-timeoutWaitCh
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<-voteCh
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validatePrecommit(t, cs1, 2, 0, vss[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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<-voteCh
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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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cs1, vss := simpleConsensusState(4)
|
|
cs2, cs3, cs4 := vss[1], vss[2], vss[3]
|
|
|
|
timeoutProposeCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringTimeoutPropose(), 0)
|
|
timeoutWaitCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringTimeoutWait(), 0)
|
|
proposalCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringCompleteProposal(), 0)
|
|
voteCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringVote(), 0)
|
|
newRoundCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewRound(), 1)
|
|
newBlockCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewBlock(), 0)
|
|
|
|
log.Debug("cs2 last round", "lr", cs2.PrivValidator.LastRound)
|
|
|
|
// everything done from perspective of cs1
|
|
|
|
/*
|
|
Round1 (cs1, B) // B B B B// B nil B nil
|
|
|
|
eg. cs2 and cs4 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().(*RoundState)
|
|
theBlockHash := rs.ProposalBlock.Hash()
|
|
|
|
<-voteCh // prevote
|
|
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header(), cs2, cs3, cs4)
|
|
_, _, _ = <-voteCh, <-voteCh, <-voteCh // prevotes
|
|
|
|
<-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
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs4)
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs3, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
|
|
_, _, _ = <-voteCh, <-voteCh, <-voteCh // precommits
|
|
|
|
// before we timeout to the new round set the new proposal
|
|
prop, propBlock := decideProposal(cs1, cs2, cs2.Height, cs2.Round+1)
|
|
propBlockParts := propBlock.MakePartSet()
|
|
propBlockHash := propBlock.Hash()
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
// timeout to new round
|
|
<-timeoutWaitCh
|
|
|
|
//XXX: this isnt gauranteed to get there before the timeoutPropose ...
|
|
cs1.SetProposalAndBlock(prop, propBlock, propBlockParts, "some peer")
|
|
|
|
<-newRoundCh
|
|
log.Notice("### ONTO ROUND 1")
|
|
|
|
/*
|
|
Round2 (cs2, 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
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, propBlockHash, propBlockParts.Header(), cs2, cs3, cs4)
|
|
_, _, _ = <-voteCh, <-voteCh, <-voteCh // prevotes
|
|
|
|
// now either we go to PrevoteWait or Precommit
|
|
select {
|
|
case <-timeoutWaitCh: // we're in PrevoteWait, go to Precommit
|
|
<-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)
|
|
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, propBlockHash, propBlockParts.Header(), cs2, cs3)
|
|
_, _ = <-voteCh, <-voteCh
|
|
|
|
be := <-newBlockCh
|
|
b := be.(types.EventDataNewBlock)
|
|
re = <-newRoundCh
|
|
rs = re.(*types.EventDataRoundState).RoundState().(*RoundState)
|
|
if rs.Height != 2 {
|
|
t.Fatal("Expected height to increment")
|
|
}
|
|
|
|
if !bytes.Equal(b.Block.Hash(), propBlockHash) {
|
|
t.Fatal("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 TestLockPOLUnlock(t *testing.T) {
|
|
cs1, vss := simpleConsensusState(4)
|
|
cs2, cs3, cs4 := vss[1], vss[2], vss[3]
|
|
|
|
proposalCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringCompleteProposal(), 0)
|
|
timeoutProposeCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringTimeoutPropose(), 0)
|
|
timeoutWaitCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringTimeoutWait(), 0)
|
|
newRoundCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewRound(), 1)
|
|
unlockCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringUnlock(), 0)
|
|
voteCh := subscribeToVoter(cs1, cs1.privValidator.Address)
|
|
|
|
// 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().(*RoundState)
|
|
theBlockHash := rs.ProposalBlock.Hash()
|
|
|
|
<-voteCh // prevote
|
|
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header(), cs2, cs3, cs4)
|
|
|
|
<-voteCh //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
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs4)
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs3, cs1.ProposalBlock.Hash(), cs1.ProposalBlockParts.Header())
|
|
|
|
// before we time out into new round, set next proposal block
|
|
prop, propBlock := decideProposal(cs1, cs2, cs2.Height, cs2.Round+1)
|
|
propBlockParts := propBlock.MakePartSet()
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
// timeout to new round
|
|
re = <-timeoutWaitCh
|
|
rs = re.(*types.EventDataRoundState).RoundState().(*RoundState)
|
|
lockedBlockHash := rs.LockedBlock.Hash()
|
|
|
|
//XXX: this isnt gauranteed to get there before the timeoutPropose ...
|
|
cs1.SetProposalAndBlock(prop, propBlock, propBlockParts, "some peer")
|
|
|
|
<-newRoundCh
|
|
log.Notice("#### ONTO ROUND 1")
|
|
/*
|
|
Round2 (cs2, 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!)
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, nil, types.PartSetHeader{}, cs2, cs3, cs4)
|
|
|
|
// 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)
|
|
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs3)
|
|
<-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 TestLockPOLSafety1(t *testing.T) {
|
|
cs1, vss := simpleConsensusState(4)
|
|
cs2, cs3, cs4 := vss[1], vss[2], vss[3]
|
|
|
|
proposalCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringCompleteProposal(), 0)
|
|
timeoutProposeCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringTimeoutPropose(), 0)
|
|
timeoutWaitCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringTimeoutWait(), 0)
|
|
newRoundCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewRound(), 1)
|
|
voteCh := subscribeToVoter(cs1, cs1.privValidator.Address)
|
|
|
|
// start round and wait for propose and prevote
|
|
startTestRound(cs1, cs1.Height, 0)
|
|
<-newRoundCh
|
|
re := <-proposalCh
|
|
rs := re.(*types.EventDataRoundState).RoundState().(*RoundState)
|
|
propBlock := rs.ProposalBlock
|
|
|
|
<-voteCh // prevote
|
|
|
|
validatePrevote(t, cs1, 0, vss[0], propBlock.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(vss[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)
|
|
|
|
prop, propBlock := decideProposal(cs1, cs2, cs2.Height, cs2.Round+1)
|
|
propBlockHash := propBlock.Hash()
|
|
propBlockParts := propBlock.MakePartSet()
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
//XXX: this isnt gauranteed to get there before the timeoutPropose ...
|
|
cs1.SetProposalAndBlock(prop, propBlock, propBlockParts, "some peer")
|
|
|
|
<-newRoundCh
|
|
log.Notice("### ONTO ROUND 1")
|
|
/*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().(*RoundState)
|
|
|
|
if rs.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
|
|
<-voteCh
|
|
validatePrevote(t, cs1, 1, vss[0], propBlockHash)
|
|
|
|
// now we see the others prevote for it, so we should lock on it
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, propBlockHash, propBlockParts.Header(), cs2, cs3, cs4)
|
|
|
|
<-voteCh // precommit
|
|
|
|
// we should have precommitted
|
|
validatePrecommit(t, cs1, 1, 1, vss[0], propBlockHash, propBlockHash)
|
|
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs3)
|
|
|
|
<-timeoutWaitCh
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
<-newRoundCh
|
|
|
|
log.Notice("### ONTO ROUND 2")
|
|
/*Round3
|
|
we see the polka from round 1 but we shouldn't unlock!
|
|
*/
|
|
|
|
// timeout of propose
|
|
<-timeoutProposeCh
|
|
|
|
// finish prevote
|
|
<-voteCh
|
|
|
|
// we should prevote what we're locked on
|
|
validatePrevote(t, cs1, 2, vss[0], propBlockHash)
|
|
|
|
newStepCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewRoundStep(), 0)
|
|
|
|
// add prevotes from the earlier round
|
|
addVoteToFromMany(cs1, prevotes, cs2, cs3, cs4)
|
|
|
|
log.Warn("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 TestLockPOLSafety2(t *testing.T) {
|
|
cs1, vss := simpleConsensusState(4)
|
|
cs2, cs3, cs4 := vss[1], vss[2], vss[3]
|
|
|
|
proposalCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringCompleteProposal(), 0)
|
|
timeoutProposeCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringTimeoutPropose(), 0)
|
|
timeoutWaitCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringTimeoutWait(), 0)
|
|
newRoundCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewRound(), 1)
|
|
unlockCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringUnlock(), 0)
|
|
voteCh := subscribeToVoter(cs1, cs1.privValidator.Address)
|
|
|
|
// 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()
|
|
|
|
// the others sign a polka but we don't see it
|
|
prevotes := signVoteMany(types.VoteTypePrevote, propBlockHash0, propBlockParts0.Header(), cs2, cs3, cs4)
|
|
|
|
// the block for round 1
|
|
prop1, propBlock1 := decideProposal(cs1, cs2, cs2.Height, cs2.Round+1)
|
|
propBlockHash1 := propBlock1.Hash()
|
|
propBlockParts1 := propBlock1.MakePartSet()
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
cs1.updateRoundStep(0, RoundStepPrecommitWait)
|
|
|
|
log.Notice("### ONTO Round 1")
|
|
// jump in at round 1
|
|
height := cs1.Height
|
|
startTestRound(cs1, height, 1)
|
|
<-newRoundCh
|
|
|
|
cs1.SetProposalAndBlock(prop1, propBlock1, propBlockParts1, "some peer")
|
|
<-proposalCh
|
|
|
|
<-voteCh // prevote
|
|
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, propBlockHash1, propBlockParts1.Header(), cs2, cs3, cs4)
|
|
|
|
<-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
|
|
signAddVoteToFromMany(types.VoteTypePrecommit, cs1, nil, types.PartSetHeader{}, cs2, cs4)
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs3, propBlockHash1, propBlockParts1.Header())
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
// 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)
|
|
if err := cs3.SignProposal(chainID, newProp); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
cs1.SetProposalAndBlock(newProp, propBlock0, propBlockParts0, "some peer")
|
|
addVoteToFromMany(cs1, prevotes, cs2, cs3, cs4) // add the pol votes
|
|
|
|
<-newRoundCh
|
|
log.Notice("### 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:
|
|
t.Fatal("validator unlocked using an old polka")
|
|
case <-voteCh:
|
|
// prevote our locked block
|
|
}
|
|
validatePrevote(t, cs1, 2, vss[0], propBlockHash1)
|
|
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------
|
|
// SlashingSuite
|
|
// TODO: Slashing
|
|
|
|
/*
|
|
func TestSlashingPrevotes(t *testing.T) {
|
|
cs1, vss := simpleConsensusState(2)
|
|
cs2 := vss[1]
|
|
|
|
|
|
proposalCh := cs1.evsw.SubscribeToEvent("tester",types.EventStringCompleteProposal() , 0)
|
|
timeoutWaitCh := cs1.evsw.SubscribeToEvent("tester",types.EventStringTimeoutWait() , 0)
|
|
newRoundCh := cs1.evsw.SubscribeToEvent("tester",types.EventStringNewRound() , 1)
|
|
voteCh := subscribeToVoter(cs1, cs1.privValidator.Address)
|
|
|
|
// start round and wait for propose and prevote
|
|
startTestRound(cs1, cs1.Height, 0)
|
|
<-newRoundCh
|
|
re := <-proposalCh
|
|
<-voteCh // prevote
|
|
|
|
rs := re.(*types.EventDataRoundState).RoundState().(*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 := cs1.ProposalBlock.Hash()
|
|
hash[0] = byte(hash[0]+1) % 255
|
|
signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, hash, rs.ProposalBlockParts.Header())
|
|
|
|
<-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
|
|
signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, rs.ProposalBlock.Hash(), rs.ProposalBlockParts.Header())
|
|
|
|
// XXX: Check for existence of Dupeout info
|
|
}
|
|
|
|
func TestSlashingPrecommits(t *testing.T) {
|
|
cs1, vss := simpleConsensusState(2)
|
|
cs2 := vss[1]
|
|
|
|
|
|
proposalCh := cs1.evsw.SubscribeToEvent("tester",types.EventStringCompleteProposal() , 0)
|
|
timeoutWaitCh := cs1.evsw.SubscribeToEvent("tester",types.EventStringTimeoutWait() , 0)
|
|
newRoundCh := cs1.evsw.SubscribeToEvent("tester",types.EventStringNewRound() , 1)
|
|
voteCh := subscribeToVoter(cs1, cs1.privValidator.Address)
|
|
|
|
// start round and wait for propose and prevote
|
|
startTestRound(cs1, cs1.Height, 0)
|
|
<-newRoundCh
|
|
re := <-proposalCh
|
|
<-voteCh // prevote
|
|
|
|
// add prevote from cs2
|
|
signAddVoteToFrom(types.VoteTypePrevote, cs1, cs2, rs.ProposalBlock.Hash(), rs.ProposalBlockParts.Header())
|
|
|
|
<-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
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hash := rs.ProposalBlock.Hash()
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hash[0] = byte(hash[0]+1) % 255
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signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, hash, rs.ProposalBlockParts.Header())
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// NOTE: we have to send the vote for different block first so we don't just go into precommit round right
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// away and ignore more prevotes (and thus fail to slash!)
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// add precommit from cs2
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signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, rs.ProposalBlock.Hash(), rs.ProposalBlockParts.Header())
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// XXX: Check for existence of Dupeout info
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}
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*/
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//------------------------------------------------------------------------------------------
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// CatchupSuite
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//------------------------------------------------------------------------------------------
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// HaltSuite
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// 4 vals.
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// we receive a final precommit after going into next round, but others might have gone to commit already!
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func TestHalt1(t *testing.T) {
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cs1, vss := simpleConsensusState(4)
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cs2, cs3, cs4 := vss[1], vss[2], vss[3]
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proposalCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringCompleteProposal(), 0)
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timeoutWaitCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringTimeoutWait(), 0)
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newRoundCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewRound(), 1)
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newBlockCh := cs1.evsw.SubscribeToEvent("tester", types.EventStringNewBlock(), 0)
|
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voteCh := subscribeToVoter(cs1, cs1.privValidator.Address)
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|
|
|
// start round and wait for propose and prevote
|
|
startTestRound(cs1, cs1.Height, 0)
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<-newRoundCh
|
|
re := <-proposalCh
|
|
rs := re.(*types.EventDataRoundState).RoundState().(*RoundState)
|
|
propBlock := rs.ProposalBlock
|
|
propBlockParts := propBlock.MakePartSet()
|
|
|
|
<-voteCh // prevote
|
|
|
|
signAddVoteToFromMany(types.VoteTypePrevote, cs1, propBlock.Hash(), propBlockParts.Header(), cs3, cs4)
|
|
<-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
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs2, nil, types.PartSetHeader{}) // didnt receive proposal
|
|
signAddVoteToFrom(types.VoteTypePrecommit, cs1, cs3, propBlock.Hash(), propBlockParts.Header())
|
|
// we receive this later, but cs3 might receive it earlier and with ours will go to commit!
|
|
precommit4 := signVote(cs4, types.VoteTypePrecommit, propBlock.Hash(), propBlockParts.Header())
|
|
|
|
incrementRound(cs2, cs3, cs4)
|
|
|
|
// timeout to new round
|
|
<-timeoutWaitCh
|
|
re = <-newRoundCh
|
|
rs = re.(*types.EventDataRoundState).RoundState().(*RoundState)
|
|
|
|
log.Notice("### 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
|
|
addVoteToFrom(cs1, cs4, precommit4)
|
|
|
|
// receiving that precommit should take us straight to commit
|
|
<-newBlockCh
|
|
re = <-newRoundCh
|
|
rs = re.(*types.EventDataRoundState).RoundState().(*RoundState)
|
|
|
|
if rs.Height != 2 {
|
|
t.Fatal("expected height to increment")
|
|
}
|
|
}
|