laconicd/rpc/ethereum/pubsub/pubsub_test.go
yihuang 0d69a69625
fix: websocket client duplicated messages (#955)
* Problem: websocket client get duplicated messages

Closes: #954
Solution:
- localize the subscription management within current connection

* changelog

* fix linter

* fix test building

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>
2022-02-25 19:08:30 +00:00

86 lines
1.5 KiB
Go

package pubsub
import (
"log"
"sort"
"sync"
"testing"
"time"
"github.com/stretchr/testify/require"
coretypes "github.com/tendermint/tendermint/rpc/core/types"
)
func TestAddTopic(t *testing.T) {
q := NewEventBus()
err := q.AddTopic("kek", make(<-chan coretypes.ResultEvent))
require.NoError(t, err)
err = q.AddTopic("lol", make(<-chan coretypes.ResultEvent))
require.NoError(t, err)
err = q.AddTopic("lol", make(<-chan coretypes.ResultEvent))
require.Error(t, err)
topics := q.Topics()
sort.Strings(topics)
require.EqualValues(t, []string{"kek", "lol"}, topics)
}
func TestSubscribe(t *testing.T) {
q := NewEventBus()
kekSrc := make(chan coretypes.ResultEvent)
q.AddTopic("kek", kekSrc)
lolSrc := make(chan coretypes.ResultEvent)
q.AddTopic("lol", lolSrc)
kekSubC, _, err := q.Subscribe("kek")
require.NoError(t, err)
lolSubC, _, err := q.Subscribe("lol")
require.NoError(t, err)
lol2SubC, _, err := q.Subscribe("lol")
require.NoError(t, err)
wg := new(sync.WaitGroup)
wg.Add(4)
emptyMsg := coretypes.ResultEvent{}
go func() {
defer wg.Done()
msg := <-kekSubC
log.Println("kek:", msg)
require.EqualValues(t, emptyMsg, msg)
}()
go func() {
defer wg.Done()
msg := <-lolSubC
log.Println("lol:", msg)
require.EqualValues(t, emptyMsg, msg)
}()
go func() {
defer wg.Done()
msg := <-lol2SubC
log.Println("lol2:", msg)
require.EqualValues(t, emptyMsg, msg)
}()
go func() {
defer wg.Done()
time.Sleep(time.Second)
close(kekSrc)
close(lolSrc)
}()
wg.Wait()
time.Sleep(time.Second)
}