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package eventbus_test
import (
"context"
"fmt"
mrand "math/rand"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/internal/eventbus"
tmpubsub "github.com/tendermint/tendermint/libs/pubsub"
tmquery "github.com/tendermint/tendermint/libs/pubsub/query"
"github.com/tendermint/tendermint/types"
)
func TestEventBusPublishEventTx(t *testing.T) {
eventBus := eventbus.NewDefault()
err := eventBus.Start()
require.NoError(t, err)
t.Cleanup(func() {
if err := eventBus.Stop(); err != nil {
t.Error(err)
}
})
tx := types.Tx("foo")
result := abci.ResponseDeliverTx{
Data: []byte("bar"),
Events: []abci.Event{
{Type: "testType", Attributes: []abci.EventAttribute{{Key: "baz", Value: "1"}}},
},
}
// PublishEventTx adds 3 composite keys, so the query below should work
ctx := context.Background()
query := fmt.Sprintf("tm.event='Tx' AND tx.height=1 AND tx.hash='%X' AND testType.baz=1", tx.Hash())
txsSub, err := eventBus.SubscribeWithArgs(ctx, tmpubsub.SubscribeArgs{
ClientID: "test",
Query: tmquery.MustParse(query),
})
require.NoError(t, err)
done := make(chan struct{})
go func() {
defer close(done)
msg, err := txsSub.Next(ctx)
assert.NoError(t, err)
edt := msg.Data().(types.EventDataTx)
assert.Equal(t, int64(1), edt.Height)
assert.Equal(t, uint32(0), edt.Index)
assert.EqualValues(t, tx, edt.Tx)
assert.Equal(t, result, edt.Result)
}()
err = eventBus.PublishEventTx(types.EventDataTx{
TxResult: abci.TxResult{
Height: 1,
Index: 0,
Tx: tx,
Result: result,
},
})
assert.NoError(t, err)
select {
case <-done:
case <-time.After(1 * time.Second):
t.Fatal("did not receive a transaction after 1 sec.")
}
}
func TestEventBusPublishEventNewBlock(t *testing.T) {
eventBus := eventbus.NewDefault()
err := eventBus.Start()
require.NoError(t, err)
t.Cleanup(func() {
if err := eventBus.Stop(); err != nil {
t.Error(err)
}
})
block := types.MakeBlock(0, []types.Tx{}, nil, []types.Evidence{})
blockID := types.BlockID{Hash: block.Hash(), PartSetHeader: block.MakePartSet(types.BlockPartSizeBytes).Header()}
resultBeginBlock := abci.ResponseBeginBlock{
Events: []abci.Event{
{Type: "testType", Attributes: []abci.EventAttribute{{Key: "baz", Value: "1"}}},
},
}
resultEndBlock := abci.ResponseEndBlock{
Events: []abci.Event{
{Type: "testType", Attributes: []abci.EventAttribute{{Key: "foz", Value: "2"}}},
},
}
// PublishEventNewBlock adds the tm.event compositeKey, so the query below should work
ctx := context.Background()
query := "tm.event='NewBlock' AND testType.baz=1 AND testType.foz=2"
blocksSub, err := eventBus.SubscribeWithArgs(ctx, tmpubsub.SubscribeArgs{
ClientID: "test",
Query: tmquery.MustParse(query),
})
require.NoError(t, err)
done := make(chan struct{})
go func() {
defer close(done)
msg, err := blocksSub.Next(ctx)
assert.NoError(t, err)
edt := msg.Data().(types.EventDataNewBlock)
assert.Equal(t, block, edt.Block)
assert.Equal(t, blockID, edt.BlockID)
assert.Equal(t, resultBeginBlock, edt.ResultBeginBlock)
assert.Equal(t, resultEndBlock, edt.ResultEndBlock)
}()
err = eventBus.PublishEventNewBlock(types.EventDataNewBlock{
Block: block,
BlockID: blockID,
ResultBeginBlock: resultBeginBlock,
ResultEndBlock: resultEndBlock,
})
assert.NoError(t, err)
select {
case <-done:
case <-time.After(1 * time.Second):
t.Fatal("did not receive a block after 1 sec.")
}
}
func TestEventBusPublishEventTxDuplicateKeys(t *testing.T) {
eventBus := eventbus.NewDefault()
err := eventBus.Start()
require.NoError(t, err)
t.Cleanup(func() {
if err := eventBus.Stop(); err != nil {
t.Error(err)
}
})
tx := types.Tx("foo")
result := abci.ResponseDeliverTx{
Data: []byte("bar"),
Events: []abci.Event{
{
Type: "transfer",
Attributes: []abci.EventAttribute{
{Key: "sender", Value: "foo"},
{Key: "recipient", Value: "bar"},
{Key: "amount", Value: "5"},
},
},
{
Type: "transfer",
Attributes: []abci.EventAttribute{
{Key: "sender", Value: "baz"},
{Key: "recipient", Value: "cat"},
{Key: "amount", Value: "13"},
},
},
{
Type: "withdraw.rewards",
Attributes: []abci.EventAttribute{
{Key: "address", Value: "bar"},
{Key: "source", Value: "iceman"},
{Key: "amount", Value: "33"},
},
},
},
}
testCases := []struct {
query string
expectResults bool
}{
{
"tm.event='Tx' AND tx.height=1 AND transfer.sender='DoesNotExist'",
false,
},
{
"tm.event='Tx' AND tx.height=1 AND transfer.sender='foo'",
true,
},
{
"tm.event='Tx' AND tx.height=1 AND transfer.sender='baz'",
true,
},
{
"tm.event='Tx' AND tx.height=1 AND transfer.sender='foo' AND transfer.sender='baz'",
true,
},
{
"tm.event='Tx' AND tx.height=1 AND transfer.sender='foo' AND transfer.sender='DoesNotExist'",
false,
},
}
for i, tc := range testCases {
ctx := context.Background()
sub, err := eventBus.SubscribeWithArgs(ctx, tmpubsub.SubscribeArgs{
ClientID: fmt.Sprintf("client-%d", i),
Query: tmquery.MustParse(tc.query),
})
require.NoError(t, err)
gotResult := make(chan bool, 1)
go func() {
defer close(gotResult)
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
msg, err := sub.Next(ctx)
if err == nil {
data := msg.Data().(types.EventDataTx)
assert.Equal(t, int64(1), data.Height)
assert.Equal(t, uint32(0), data.Index)
assert.EqualValues(t, tx, data.Tx)
assert.Equal(t, result, data.Result)
gotResult <- true
}
}()
assert.NoError(t, eventBus.PublishEventTx(types.EventDataTx{
TxResult: abci.TxResult{
Height: 1,
Index: 0,
Tx: tx,
Result: result,
},
}))
if got := <-gotResult; got != tc.expectResults {
require.Failf(t, "Wrong transaction result",
"got a tx: %v, wanted a tx: %v", got, tc.expectResults)
}
}
}
func TestEventBusPublishEventNewBlockHeader(t *testing.T) {
eventBus := eventbus.NewDefault()
err := eventBus.Start()
require.NoError(t, err)
t.Cleanup(func() {
if err := eventBus.Stop(); err != nil {
t.Error(err)
}
})
block := types.MakeBlock(0, []types.Tx{}, nil, []types.Evidence{})
resultBeginBlock := abci.ResponseBeginBlock{
Events: []abci.Event{
{Type: "testType", Attributes: []abci.EventAttribute{{Key: "baz", Value: "1"}}},
},
}
resultEndBlock := abci.ResponseEndBlock{
Events: []abci.Event{
{Type: "testType", Attributes: []abci.EventAttribute{{Key: "foz", Value: "2"}}},
},
}
// PublishEventNewBlockHeader adds the tm.event compositeKey, so the query below should work
ctx := context.Background()
query := "tm.event='NewBlockHeader' AND testType.baz=1 AND testType.foz=2"
headersSub, err := eventBus.SubscribeWithArgs(ctx, tmpubsub.SubscribeArgs{
ClientID: "test",
Query: tmquery.MustParse(query),
})
require.NoError(t, err)
done := make(chan struct{})
go func() {
defer close(done)
msg, err := headersSub.Next(ctx)
assert.NoError(t, err)
edt := msg.Data().(types.EventDataNewBlockHeader)
assert.Equal(t, block.Header, edt.Header)
assert.Equal(t, resultBeginBlock, edt.ResultBeginBlock)
assert.Equal(t, resultEndBlock, edt.ResultEndBlock)
}()
err = eventBus.PublishEventNewBlockHeader(types.EventDataNewBlockHeader{
Header: block.Header,
ResultBeginBlock: resultBeginBlock,
ResultEndBlock: resultEndBlock,
})
assert.NoError(t, err)
select {
case <-done:
case <-time.After(1 * time.Second):
t.Fatal("did not receive a block header after 1 sec.")
}
}
func TestEventBusPublishEventNewEvidence(t *testing.T) {
eventBus := eventbus.NewDefault()
err := eventBus.Start()
require.NoError(t, err)
t.Cleanup(func() {
if err := eventBus.Stop(); err != nil {
t.Error(err)
}
})
ev := types.NewMockDuplicateVoteEvidence(1, time.Now(), "test-chain-id")
ctx := context.Background()
const query = `tm.event='NewEvidence'`
evSub, err := eventBus.SubscribeWithArgs(ctx, tmpubsub.SubscribeArgs{
ClientID: "test",
Query: tmquery.MustParse(query),
})
require.NoError(t, err)
done := make(chan struct{})
go func() {
defer close(done)
msg, err := evSub.Next(ctx)
assert.NoError(t, err)
edt := msg.Data().(types.EventDataNewEvidence)
assert.Equal(t, ev, edt.Evidence)
assert.Equal(t, int64(4), edt.Height)
}()
err = eventBus.PublishEventNewEvidence(types.EventDataNewEvidence{
Evidence: ev,
Height: 4,
})
assert.NoError(t, err)
select {
case <-done:
case <-time.After(1 * time.Second):
t.Fatal("did not receive a block header after 1 sec.")
}
}
func TestEventBusPublish(t *testing.T) {
eventBus := eventbus.NewDefault()
err := eventBus.Start()
require.NoError(t, err)
t.Cleanup(func() {
if err := eventBus.Stop(); err != nil {
t.Error(err)
}
})
const numEventsExpected = 14
ctx := context.Background()
sub, err := eventBus.SubscribeWithArgs(ctx, tmpubsub.SubscribeArgs{
ClientID: "test",
Query: tmquery.Empty{},
Limit: numEventsExpected,
})
require.NoError(t, err)
count := make(chan int, 1)
go func() {
defer close(count)
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
for n := 0; ; n++ {
if _, err := sub.Next(ctx); err != nil {
count <- n
return
}
}
}()
require.NoError(t, eventBus.Publish(types.EventNewBlockHeaderValue,
types.EventDataNewBlockHeader{}))
require.NoError(t, eventBus.PublishEventNewBlock(types.EventDataNewBlock{}))
require.NoError(t, eventBus.PublishEventNewBlockHeader(types.EventDataNewBlockHeader{}))
require.NoError(t, eventBus.PublishEventVote(types.EventDataVote{}))
require.NoError(t, eventBus.PublishEventNewRoundStep(types.EventDataRoundState{}))
require.NoError(t, eventBus.PublishEventTimeoutPropose(types.EventDataRoundState{}))
require.NoError(t, eventBus.PublishEventTimeoutWait(types.EventDataRoundState{}))
require.NoError(t, eventBus.PublishEventNewRound(types.EventDataNewRound{}))
require.NoError(t, eventBus.PublishEventCompleteProposal(types.EventDataCompleteProposal{}))
require.NoError(t, eventBus.PublishEventPolka(types.EventDataRoundState{}))
require.NoError(t, eventBus.PublishEventUnlock(types.EventDataRoundState{}))
require.NoError(t, eventBus.PublishEventRelock(types.EventDataRoundState{}))
require.NoError(t, eventBus.PublishEventLock(types.EventDataRoundState{}))
require.NoError(t, eventBus.PublishEventValidatorSetUpdates(types.EventDataValidatorSetUpdates{}))
require.NoError(t, eventBus.PublishEventBlockSyncStatus(types.EventDataBlockSyncStatus{}))
require.NoError(t, eventBus.PublishEventStateSyncStatus(types.EventDataStateSyncStatus{}))
require.GreaterOrEqual(t, <-count, numEventsExpected)
}
func BenchmarkEventBus(b *testing.B) {
benchmarks := []struct {
name string
numClients int
randQueries bool
randEvents bool
}{
{"10Clients1Query1Event", 10, false, false},
{"100Clients", 100, false, false},
{"1000Clients", 1000, false, false},
{"10ClientsRandQueries1Event", 10, true, false},
{"100Clients", 100, true, false},
{"1000Clients", 1000, true, false},
{"10ClientsRandQueriesRandEvents", 10, true, true},
{"100Clients", 100, true, true},
{"1000Clients", 1000, true, true},
{"10Clients1QueryRandEvents", 10, false, true},
{"100Clients", 100, false, true},
{"1000Clients", 1000, false, true},
}
for _, bm := range benchmarks {
bm := bm
b.Run(bm.name, func(b *testing.B) {
benchmarkEventBus(bm.numClients, bm.randQueries, bm.randEvents, b)
})
}
}
func benchmarkEventBus(numClients int, randQueries bool, randEvents bool, b *testing.B) {
// for random* functions
mrand.Seed(time.Now().Unix())
eventBus := eventbus.NewDefault() // set buffer capacity to 0 so we are not testing cache
err := eventBus.Start()
if err != nil {
b.Error(err)
}
b.Cleanup(func() {
if err := eventBus.Stop(); err != nil {
b.Error(err)
}
})
ctx := context.Background()
q := types.EventQueryNewBlock
for i := 0; i < numClients; i++ {
if randQueries {
q = randQuery()
}
sub, err := eventBus.SubscribeWithArgs(ctx, tmpubsub.SubscribeArgs{
ClientID: fmt.Sprintf("client-%d", i),
Query: q,
})
if err != nil {
b.Fatal(err)
}
go func() {
for {
if _, err := sub.Next(ctx); err != nil {
return
}
}
}()
}
eventValue := types.EventNewBlockValue
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
if randEvents {
eventValue = randEventValue()
}
err := eventBus.Publish(eventValue, types.EventDataString("Gamora"))
if err != nil {
b.Error(err)
}
}
}
var events = []string{
types.EventNewBlockValue,
types.EventNewBlockHeaderValue,
types.EventNewRoundValue,
types.EventNewRoundStepValue,
types.EventTimeoutProposeValue,
types.EventCompleteProposalValue,
types.EventPolkaValue,
types.EventUnlockValue,
types.EventLockValue,
types.EventRelockValue,
types.EventTimeoutWaitValue,
types.EventVoteValue,
types.EventBlockSyncStatusValue,
types.EventStateSyncStatusValue,
}
func randEventValue() string {
return events[mrand.Intn(len(events))]
}
var queries = []tmpubsub.Query{
types.EventQueryNewBlock,
types.EventQueryNewBlockHeader,
types.EventQueryNewRound,
types.EventQueryNewRoundStep,
types.EventQueryTimeoutPropose,
types.EventQueryCompleteProposal,
types.EventQueryPolka,
types.EventQueryUnlock,
types.EventQueryLock,
types.EventQueryRelock,
types.EventQueryTimeoutWait,
types.EventQueryVote,
types.EventQueryBlockSyncStatus,
types.EventQueryStateSyncStatus,
}
func randQuery() tmpubsub.Query {
return queries[mrand.Intn(len(queries))]
}