snapshot of https://github.com/ThreeDotsLabs/watermill.git (master, 2026-09-15; blobs > 131072B omitted)

pubsub/sync/waitgroup.go

@@ -0,0 +1,23 @@
+package sync
+
+import (
+	"sync"
+	"time"
+)
+
+// WaitGroupTimeout adds timeout feature for sync.WaitGroup.Wait().
+// It returns true, when timed out.
+func WaitGroupTimeout(wg *sync.WaitGroup, timeout time.Duration) bool {
+	wgClosed := make(chan struct{}, 1)
+	go func() {
+		wg.Wait()
+		wgClosed <- struct{}{}
+	}()
+
+	select {
+	case <-wgClosed:
+		return false
+	case <-time.After(timeout):
+		return true
+	}
+}

pubsub/sync/waitgroup_test.go

@@ -0,0 +1,24 @@
+package sync
+
+import (
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestWaitGroupTimeout_no_timeout(t *testing.T) {
+	wg := &sync.WaitGroup{}
+
+	timedout := WaitGroupTimeout(wg, time.Millisecond*100)
+	assert.False(t, timedout)
+}
+
+func TestWaitGroupTimeout_timeout(t *testing.T) {
+	wg := &sync.WaitGroup{}
+	wg.Add(1)
+
+	timedout := WaitGroupTimeout(wg, time.Millisecond*100)
+	assert.True(t, timedout)
+}