diff --git a/core.go b/core.go
index a1f19c8..a973c91 100644
--- a/core.go
+++ b/core.go
@@ -21,8 +21,8 @@ import (
 // Date : 16:50 2023/8/11
 func NewTimeWheel(slotCount int, interval time.Duration) *TimeWheel {
 	tw := &TimeWheel{
-		Interval:          0,
-		Slots:             make([]*list.List, 0),
+		Interval:          interval,
+		Slots:             make([]*list.List, slotCount),
 		Ticker:            time.NewTicker(interval),
 		CurrentPosition:   0,
 		SlotCount:         slotCount,
@@ -75,6 +75,7 @@ func (tw *TimeWheel) initSlots() {
 //
 // Date : 13:38 2023/8/4
 func (tw *TimeWheel) Start() {
+	tw.IsRunning = true
 	for {
 		select {
 		case <-tw.Ticker.C:
@@ -88,6 +89,7 @@ func (tw *TimeWheel) Start() {
 			tw.RemoveTask(task)
 		case <-tw.StopChannel:
 			tw.Ticker.Stop()
+			tw.IsRunning = false
 			return
 		}
 	}
diff --git a/core_test.go b/core_test.go
new file mode 100644
index 0000000..a48bcf2
--- /dev/null
+++ b/core_test.go
@@ -0,0 +1,77 @@
+// Package task ...
+//
+// Description : task ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 2023-08-11 17:00
+package task
+
+import (
+	"context"
+	"fmt"
+	"git.zhangdeman.cn/zhangdeman/wrapper"
+	"testing"
+	"time"
+)
+
+var tw *TimeWheel
+
+// TestNewTimeWheel ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 17:00 2023/8/11
+func TestNewTimeWheel(t *testing.T) {
+	tw = NewTimeWheel(10, 10*time.Second)
+	tw.AddTask(&Task{
+		Key:            wrapper.StringFromRandom(32, "").Value(),
+		Interval:       5 * time.Second,
+		CreatedTime:    time.Now(),
+		Position:       0,
+		Circle:         100,
+		Job:            &testTask{},
+		Times:          10,
+		MaxExecuteTime: 0,
+	}, false)
+	go tw.Start()
+	time.Sleep(3 * time.Second)
+	for tw.IsRunning {
+
+	}
+}
+
+type testTask struct {
+}
+
+func (t testTask) GetFlag() string {
+	return "unit_test"
+}
+
+func (t testTask) Description() string {
+	return "单元测试任务"
+}
+
+func (t testTask) GetRunID() string {
+	return wrapper.StringFromRandom(32, "").Value()
+}
+
+func (t testTask) Callback(result *Result) error {
+	fmt.Println(result)
+	return nil
+}
+
+func (t testTask) Execute(ctx context.Context, cfg *Config) (map[string]interface{}, error) {
+	fmt.Println(wrapper.OwnTimeFromNow().ToString())
+	tw.AddTask(&Task{
+		Key:            wrapper.StringFromRandom(32, "").Value(),
+		Interval:       5 * time.Second,
+		CreatedTime:    time.Now(),
+		Position:       0,
+		Circle:         100,
+		Job:            &testTask{},
+		Times:          10,
+		MaxExecuteTime: 100,
+	}, false)
+	return nil, nil
+}
diff --git a/go.mod b/go.mod
index c8e05fe..4c63e67 100644
--- a/go.mod
+++ b/go.mod
@@ -5,9 +5,16 @@ go 1.20
 require git.zhangdeman.cn/zhangdeman/easymap v0.0.0-20230811085725-1a7414bb7590
 
 require (
+	git.zhangdeman.cn/zhangdeman/consts v0.0.0-20230811030300-6f850372c88c // indirect
+	git.zhangdeman.cn/zhangdeman/serialize v0.0.0-20230811032817-e6ad534a9a10 // indirect
 	git.zhangdeman.cn/zhangdeman/util v0.0.0-20230811070456-d6a489d5860b // indirect
+	git.zhangdeman.cn/zhangdeman/wrapper v0.0.0-20230811071513-cfc46e8d82e1 // indirect
+	github.com/BurntSushi/toml v1.3.2 // indirect
+	github.com/axgle/mahonia v0.0.0-20180208002826-3358181d7394 // indirect
+	github.com/go-ini/ini v1.67.0 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
 	github.com/mozillazg/go-pinyin v0.20.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index 0c2854e..b1301bf 100644
--- a/go.sum
+++ b/go.sum
@@ -1,9 +1,21 @@
+git.zhangdeman.cn/zhangdeman/consts v0.0.0-20230811030300-6f850372c88c h1:Dan3iSVU6XTKt8r3/qixfPHPpfLZjkYlPmaJios7wtE=
+git.zhangdeman.cn/zhangdeman/consts v0.0.0-20230811030300-6f850372c88c/go.mod h1:IXXaZkb7vGzGnGM5RRWrASAuwrVSNxuoe0DmeXx5g6k=
 git.zhangdeman.cn/zhangdeman/easymap v0.0.0-20230307094841-e437ba87af10 h1:+Lg4vXFEiWVKjhUJdXuoP0AgjGT49oqJ3301STnZErk=
 git.zhangdeman.cn/zhangdeman/easymap v0.0.0-20230307094841-e437ba87af10/go.mod h1:+Lc0zYF8sylRi75A7NGmObrLxugwAZa8WVpWh2eh5X0=
 git.zhangdeman.cn/zhangdeman/easymap v0.0.0-20230811085725-1a7414bb7590 h1:zN5JKHvzCH5q+X6W6fZw1hZ18FTlmZdv+k5T2j+6/GQ=
 git.zhangdeman.cn/zhangdeman/easymap v0.0.0-20230811085725-1a7414bb7590/go.mod h1:l9S40lsDnTd/VAZjh1kmfYvz0B9z+7oT86pMQ/KurWo=
+git.zhangdeman.cn/zhangdeman/serialize v0.0.0-20230811032817-e6ad534a9a10 h1:orhcMAKrcOajsBJCgssnb9O8YcLsPJvWuXF511gs5dc=
+git.zhangdeman.cn/zhangdeman/serialize v0.0.0-20230811032817-e6ad534a9a10/go.mod h1:CzX5/WwGDTnKmewarnjkK5XcSRbgszTQTdTL3OUc/s4=
 git.zhangdeman.cn/zhangdeman/util v0.0.0-20230811070456-d6a489d5860b h1:vnmxYrNdX6f5sEVjjkM1fIR+i32kHJ4g9DJqug9KKek=
 git.zhangdeman.cn/zhangdeman/util v0.0.0-20230811070456-d6a489d5860b/go.mod h1:Yum5+tgP+Wf1GWUAyQz1Qh8Ab9m5+90GYkYdzqVs0lA=
+git.zhangdeman.cn/zhangdeman/wrapper v0.0.0-20230811071513-cfc46e8d82e1 h1:k2iu9KgRxeroytB+N+/XapAxt1di7o2pNTISjFlYDJ8=
+git.zhangdeman.cn/zhangdeman/wrapper v0.0.0-20230811071513-cfc46e8d82e1/go.mod h1:kvjAbtGTo14gKCS0X4rxnb2sPkskHOUy2NXcx34t6Mw=
+github.com/BurntSushi/toml v1.3.2 h1:o7IhLm0Msx3BaB+n3Ag7L8EVlByGnpq14C4YWiu/gL8=
+github.com/BurntSushi/toml v1.3.2/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+github.com/axgle/mahonia v0.0.0-20180208002826-3358181d7394 h1:OYA+5W64v3OgClL+IrOD63t4i/RW7RqrAVl9LTZ9UqQ=
+github.com/axgle/mahonia v0.0.0-20180208002826-3358181d7394/go.mod h1:Q8n74mJTIgjX4RBBcHnJ05h//6/k6foqmgE45jTQtxg=
+github.com/go-ini/ini v1.67.0 h1:z6ZrTEZqSWOTyH2FlglNbNgARyHG8oLW9gMELqKr06A=
+github.com/go-ini/ini v1.67.0/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
 github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/mozillazg/go-pinyin v0.20.0 h1:BtR3DsxpApHfKReaPO1fCqF4pThRwH9uwvXzm+GnMFQ=
@@ -12,3 +24,6 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/spaolacci/murmur3 v1.1.0 h1:7c1g84S4BPRrfL5Xrdp6fOJ206sU9y293DDHaoy0bLI=
 github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=