diff --git a/util/util_test.go b/util/util_test.go
new file mode 100644
index 0000000..b92be3c
--- /dev/null
+++ b/util/util_test.go
@@ -0,0 +1,35 @@
+package util_test
+
+import (
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/CPunch/gopenfusion/util"
+	"github.com/matryer/is"
+)
+
+func TestWaitWithTimeout(t *testing.T) {
+	is := is.New(t)
+	wg := &sync.WaitGroup{}
+	go func() {
+		time.Sleep(2 * time.Second)
+		wg.Done()
+	}()
+
+	wg.Add(1)
+	is.True(!util.WaitWithTimeout(wg, 1)) // timeout should occur
+	is.True(util.WaitWithTimeout(wg, 2))  // timeout shouldn't occur
+}
+
+func TestSelectWithTimeout(t *testing.T) {
+	is := is.New(t)
+	ch := make(chan struct{})
+	go func() {
+		time.Sleep(2 * time.Second)
+		close(ch)
+	}()
+
+	is.True(!util.SelectWithTimeout(ch, 1)) // timeout should occur
+	is.True(util.SelectWithTimeout(ch, 2))  // timeout shouldn't occur
+}