You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
215 lines
6.5 KiB
215 lines
6.5 KiB
package consensus
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"path"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
. "github.com/tendermint/go-common"
|
|
"github.com/tendermint/go-wire"
|
|
"github.com/tendermint/tendermint/types"
|
|
)
|
|
|
|
var data_dir = path.Join(GoPath, "src/github.com/tendermint/tendermint/consensus", "test_data")
|
|
|
|
// the priv validator changes step at these lines for a block with 1 val and 1 part
|
|
var baseStepChanges = []int{2, 5, 7}
|
|
|
|
// test recovery from each line in each testCase
|
|
var testCases = []*testCase{
|
|
newTestCase("empty_block", baseStepChanges), // empty block (has 1 block part)
|
|
newTestCase("small_block1", baseStepChanges), // small block with txs in 1 block part
|
|
newTestCase("small_block2", []int{2, 7, 9}), // small block with txs across 3 smaller block parts
|
|
}
|
|
|
|
type testCase struct {
|
|
name string
|
|
log string //full cswal
|
|
stepMap map[int]int8 // map lines of log to privval step
|
|
|
|
proposeLine int
|
|
prevoteLine int
|
|
precommitLine int
|
|
}
|
|
|
|
func newTestCase(name string, stepChanges []int) *testCase {
|
|
if len(stepChanges) != 3 {
|
|
panic(Fmt("a full wal has 3 step changes! Got array %v", stepChanges))
|
|
}
|
|
return &testCase{
|
|
name: name,
|
|
log: readWAL(path.Join(data_dir, name+".cswal")),
|
|
stepMap: newMapFromChanges(stepChanges),
|
|
|
|
proposeLine: stepChanges[0],
|
|
prevoteLine: stepChanges[1],
|
|
precommitLine: stepChanges[2],
|
|
}
|
|
}
|
|
|
|
func newMapFromChanges(changes []int) map[int]int8 {
|
|
changes = append(changes, changes[2]+1) // so we add the last step change to the map
|
|
m := make(map[int]int8)
|
|
var count int
|
|
for changeNum, nextChange := range changes {
|
|
for ; count < nextChange; count++ {
|
|
m[count] = int8(changeNum)
|
|
}
|
|
}
|
|
return m
|
|
}
|
|
|
|
func readWAL(p string) string {
|
|
b, err := ioutil.ReadFile(p)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return string(b)
|
|
}
|
|
|
|
func writeWAL(log string) string {
|
|
fmt.Println("writing", log)
|
|
// write the needed wal to file
|
|
f, err := ioutil.TempFile(os.TempDir(), "replay_test_")
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
_, err = f.WriteString(log)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
name := f.Name()
|
|
f.Close()
|
|
return name
|
|
}
|
|
|
|
func waitForBlock(newBlockCh chan interface{}, thisCase *testCase, i int) {
|
|
after := time.After(time.Second * 10)
|
|
select {
|
|
case <-newBlockCh:
|
|
case <-after:
|
|
panic(Fmt("Timed out waiting for new block for case '%s' line %d", thisCase.name, i))
|
|
}
|
|
}
|
|
|
|
func runReplayTest(t *testing.T, cs *ConsensusState, fileName string, newBlockCh chan interface{},
|
|
thisCase *testCase, i int) {
|
|
|
|
cs.config.Set("cswal", fileName)
|
|
cs.Start()
|
|
// Wait to make a new block.
|
|
// This is just a signal that we haven't halted; its not something contained in the WAL itself.
|
|
// Assuming the consensus state is running, replay of any WAL, including the empty one,
|
|
// should eventually be followed by a new block, or else something is wrong
|
|
waitForBlock(newBlockCh, thisCase, i)
|
|
cs.Stop()
|
|
}
|
|
|
|
func setupReplayTest(thisCase *testCase, nLines int, crashAfter bool) (*ConsensusState, chan interface{}, string, string) {
|
|
fmt.Println("-------------------------------------")
|
|
log.Notice(Fmt("Starting replay test of %d lines of WAL (crash before write)", nLines))
|
|
|
|
lineStep := nLines
|
|
if crashAfter {
|
|
lineStep -= 1
|
|
}
|
|
|
|
split := strings.Split(thisCase.log, "\n")
|
|
lastMsg := split[nLines]
|
|
|
|
// we write those lines up to (not including) one with the signature
|
|
fileName := writeWAL(strings.Join(split[:nLines], "\n") + "\n")
|
|
|
|
cs := fixedConsensusStateDummy()
|
|
|
|
// set the last step according to when we crashed vs the wal
|
|
cs.privValidator.LastHeight = 1 // first block
|
|
cs.privValidator.LastStep = thisCase.stepMap[lineStep]
|
|
|
|
fmt.Println("LAST STEP", cs.privValidator.LastStep)
|
|
|
|
newBlockCh := subscribeToEvent(cs.evsw, "tester", types.EventStringNewBlock(), 1)
|
|
|
|
return cs, newBlockCh, lastMsg, fileName
|
|
}
|
|
|
|
//-----------------------------------------------
|
|
// Test the log at every iteration, and set the privVal last step
|
|
// as if the log was written after signing, before the crash
|
|
|
|
func TestReplayCrashAfterWrite(t *testing.T) {
|
|
for _, thisCase := range testCases {
|
|
split := strings.Split(thisCase.log, "\n")
|
|
for i := 0; i < len(split)-1; i++ {
|
|
cs, newBlockCh, _, f := setupReplayTest(thisCase, i+1, true)
|
|
runReplayTest(t, cs, f, newBlockCh, thisCase, i+1)
|
|
}
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------
|
|
// Test the log as if we crashed after signing but before writing.
|
|
// This relies on privValidator.LastSignature being set
|
|
|
|
func TestReplayCrashBeforeWritePropose(t *testing.T) {
|
|
for _, thisCase := range testCases {
|
|
lineNum := thisCase.proposeLine
|
|
cs, newBlockCh, proposalMsg, f := setupReplayTest(thisCase, lineNum, false) // propose
|
|
// Set LastSig
|
|
var err error
|
|
var msg ConsensusLogMessage
|
|
wire.ReadJSON(&msg, []byte(proposalMsg), &err)
|
|
proposal := msg.Msg.(msgInfo).Msg.(*ProposalMessage)
|
|
if err != nil {
|
|
t.Fatalf("Error reading json data: %v", err)
|
|
}
|
|
cs.privValidator.LastSignBytes = types.SignBytes(cs.state.ChainID, proposal.Proposal)
|
|
cs.privValidator.LastSignature = proposal.Proposal.Signature
|
|
runReplayTest(t, cs, f, newBlockCh, thisCase, lineNum)
|
|
}
|
|
}
|
|
|
|
func TestReplayCrashBeforeWritePrevote(t *testing.T) {
|
|
for _, thisCase := range testCases {
|
|
lineNum := thisCase.prevoteLine
|
|
cs, newBlockCh, voteMsg, f := setupReplayTest(thisCase, lineNum, false) // prevote
|
|
types.AddListenerForEvent(cs.evsw, "tester", types.EventStringCompleteProposal(), func(data types.TMEventData) {
|
|
// Set LastSig
|
|
var err error
|
|
var msg ConsensusLogMessage
|
|
wire.ReadJSON(&msg, []byte(voteMsg), &err)
|
|
vote := msg.Msg.(msgInfo).Msg.(*VoteMessage)
|
|
if err != nil {
|
|
t.Fatalf("Error reading json data: %v", err)
|
|
}
|
|
cs.privValidator.LastSignBytes = types.SignBytes(cs.state.ChainID, vote.Vote)
|
|
cs.privValidator.LastSignature = vote.Vote.Signature
|
|
})
|
|
runReplayTest(t, cs, f, newBlockCh, thisCase, lineNum)
|
|
}
|
|
}
|
|
|
|
func TestReplayCrashBeforeWritePrecommit(t *testing.T) {
|
|
for _, thisCase := range testCases {
|
|
lineNum := thisCase.precommitLine
|
|
cs, newBlockCh, voteMsg, f := setupReplayTest(thisCase, lineNum, false) // precommit
|
|
types.AddListenerForEvent(cs.evsw, "tester", types.EventStringPolka(), func(data types.TMEventData) {
|
|
// Set LastSig
|
|
var err error
|
|
var msg ConsensusLogMessage
|
|
wire.ReadJSON(&msg, []byte(voteMsg), &err)
|
|
vote := msg.Msg.(msgInfo).Msg.(*VoteMessage)
|
|
if err != nil {
|
|
t.Fatalf("Error reading json data: %v", err)
|
|
}
|
|
cs.privValidator.LastSignBytes = types.SignBytes(cs.state.ChainID, vote.Vote)
|
|
cs.privValidator.LastSignature = vote.Vote.Signature
|
|
})
|
|
runReplayTest(t, cs, f, newBlockCh, thisCase, lineNum)
|
|
}
|
|
}
|