diff --git a/core_test.go b/core_test.go
index 3075317..dc73705 100644
--- a/core_test.go
+++ b/core_test.go
@@ -23,7 +23,7 @@ var tw *TimeWheel
 //
 // Date : 17:00 2023/8/11
 func TestNewTimeWheel(t *testing.T) {
-	tw = NewTimeWheel(10, 10*time.Second)
+	tw = NewTimeWheel(10, time.Second)
 	tw.AddTask(&Task{
 		Key:            wrapper.StringFromRandom(32, "").Value(),
 		Interval:       5 * time.Second,
@@ -36,8 +36,7 @@ func TestNewTimeWheel(t *testing.T) {
 	}, false)
 	go tw.Start()
 	time.Sleep(3 * time.Second)
-	for tw.IsRunning {
-
+	for tw.isRunning {
 	}
 }
 
@@ -61,7 +60,7 @@ func (t testTask) Callback(result *Result) error {
 	return nil
 }
 
-func (t testTask) Execute(ctx context.Context, cfg *Config) (map[string]any, error) {
+func (t testTask) Execute(ctx context.Context, cfg *Config) *Result {
 	fmt.Println(wrapper.OwnTimeFromNow().ToString())
-	return nil, nil
+	return nil
 }