Files
woodpecker/server/pubsub/memory/pub_test.go
T

99 lines
2.3 KiB
Go

// Copyright 2023 Woodpecker Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package memory
import (
"context"
"sync"
"testing"
"time"
"github.com/stretchr/testify/assert"
"go.woodpecker-ci.org/woodpecker/v3/server/pubsub"
)
func TestPubsub(t *testing.T) {
var (
wg sync.WaitGroup
testTopic = map[string]struct{}{"test": {}}
testMessage = pubsub.Message{
Data: []byte("test"),
}
)
ctx, cancel := context.WithCancelCause(
t.Context(),
)
broker := New()
assert.Error(t, broker.Subscribe(ctx, nil, func(pubsub.Message) {}))
go func() {
assert.NoError(t, broker.Subscribe(ctx, testTopic, func(message pubsub.Message) { assert.Equal(t, testMessage, message); wg.Done() }))
}()
go func() {
assert.NoError(t, broker.Subscribe(ctx, testTopic, func(pubsub.Message) { wg.Done() }))
}()
<-time.After(500 * time.Millisecond)
wg.Add(2)
go func() {
assert.NoError(t, broker.Publish(ctx, testTopic, testMessage))
}()
wg.Wait()
cancel(nil)
}
func TestPubsubConcurrentCancel(t *testing.T) {
testTopic := map[string]struct{}{"test": {}}
broker := New()
for range 100 {
ctx, cancel := context.WithCancelCause(t.Context())
ch := make(chan []byte) // Unbuffered to force blocking sends
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
_ = broker.Subscribe(ctx, testTopic, func(m pubsub.Message) {
select {
case <-ctx.Done():
case ch <- m.Data:
}
})
}()
// Start publishing many messages to increase chance of blocking send
var pubWg sync.WaitGroup
for range 100 {
pubWg.Add(1)
go func() {
defer pubWg.Done()
_ = broker.Publish(ctx, testTopic, pubsub.Message{Data: []byte("x")})
}()
}
// Cancel while publishes are in flight to race with pending sends
cancel(nil)
pubWg.Wait()
wg.Wait()
}
}