test(utils): 添加事件驱动模型测试

- 在 sqrt_test.go 中添加了 fastSqr1 测试函数，用于测试事件驱动模型
- 新增了 Event 和 Uint32AsyncEvent 类型用于测试
- 更新了 go.work、go.mod 和

common/utils/sqrt_test.go

@@ -4,6 +4,8 @@ import (
 	"fmt"
 	"math"
 	"testing"
+
+	"github.com/badu/bus"
 )
 
 func Test_fastSqrt(t *testing.T) {
@@ -89,3 +91,78 @@ func BenchmarkFastSqrtInt(b *testing.B) {
 		}
 	}
 }
+
+func Test_fastSqr1(b *testing.T) {
+	// scenario : we have a large number of subscribers.
+	// we publish an event and while doing that,
+	// we register another one on a different goroutine
+
+	topic := bus.NewTopic[*Uint32AsyncEvent]()
+	for i := 0; i < 4096; i++ {
+		topic.Sub(func(v *Uint32AsyncEvent) {
+			print(v.u)
+		})
+	}
+
+	topic.Pub(&Uint32AsyncEvent{u: 1})
+	// finishPubWait := make(chan struct{})
+	// finishSubWait := make(chan struct{})
+	// start := make(chan struct{})
+
+	// go func() {
+	// 	<-start
+	// 	topic.PubAsync(&Uint32AsyncEvent{u: 1})
+	// 	defer close(finishPubWait)
+	// }()
+
+	// newSubCalled := false
+
+	// go func() {
+	// 	<-start
+	// 	topic.Sub(func(v *Uint32AsyncEvent) {
+	// 		newSubCalled = true
+	// 	})
+	// 	close(finishSubWait)
+	// }()
+
+	// close(start) // start both goroutines
+
+	// <-finishPubWait // wait for pub to finish
+
+	// <-finishSubWait // wait for sub to finish
+
+	// if newSubCalled {
+	// 	print("new subscriber called")
+	// }
+
+}
+
+// Various event types
+const EventA = 0x01
+
+type Uint32AsyncEvent struct {
+	u uint32
+}
+
+// Event type for testing purposes
+type Event struct {
+	Data  string
+	type1 uint32
+}
+
+// Type returns the event type
+func (ev Event) Type() uint32 {
+	return ev.type1
+}
+
+// newEventA creates a new instance of an event
+func newEventA(data string) Event {
+	return Event{Data: data, type1: EventA}
+}
+
+// Various event types
+const EventB1 = 0x02
+
+func newEventB(data string) Event {
+	return Event{Data: data, type1: EventB1}
+}