diff --git a/g/container/gpool/gpool_z_unit_test.go b/g/container/gpool/gpool_z_unit_test.go
new file mode 100644
index 000000000..32577a25c
--- /dev/null
+++ b/g/container/gpool/gpool_z_unit_test.go
@@ -0,0 +1,92 @@
+package gpool_test
+
+import (
+	"errors"
+	"testing"
+	"time"
+
+	"github.com/gogf/gf/g/container/gpool"
+	"github.com/gogf/gf/g/test/gtest"
+)
+
+var nf gpool.NewFunc = func() (i interface{}, e error) {
+	return "hello", nil
+}
+
+var assertIndex int = 0
+var ef gpool.ExpireFunc = func(i interface{}) {
+	assertIndex++
+	gtest.Assert(i, assertIndex)
+}
+
+func Test_Gpool(t *testing.T) {
+	gtest.Case(t, func() {
+		//
+		//expire = 0
+		p1 := gpool.New(0, nf)
+		p1.Put(1)
+		p1.Put(2)
+		time.Sleep(1 * time.Second)
+		//test won't be timeout
+		v1, err1 := p1.Get()
+		gtest.Assert(err1, nil)
+		gtest.Assert(v1, 1)
+		//test clear
+		p1.Clear()
+		gtest.Assert(p1.Size(), 0)
+		//test newFunc
+		v1, err1 = p1.Get()
+		gtest.Assert(err1, nil)
+		gtest.Assert(v1, "hello")
+		//put data again
+		p1.Put(3)
+		p1.Put(4)
+		v1, err1 = p1.Get()
+		gtest.Assert(err1, nil)
+		gtest.Assert(v1, 3)
+		//test close
+		p1.Close()
+		v1, err1 = p1.Get()
+		gtest.Assert(err1, nil)
+		gtest.Assert(v1, "hello")
+
+	})
+
+	gtest.Case(t, func() {
+		//
+		//expire > 0
+		p2 := gpool.New(2000, nil, ef)
+		for index := 0; index < 10; index++ {
+			p2.Put(index)
+		}
+		gtest.Assert(p2.Size(), 10)
+		v2, err2 := p2.Get()
+		gtest.Assert(err2, nil)
+		gtest.Assert(v2, 0)
+		//test timeout expireFunc
+		time.Sleep(3 * time.Second)
+		v2, err2 = p2.Get()
+		gtest.Assert(err2, errors.New("pool is empty"))
+		gtest.Assert(v2, nil)
+		//test close expireFunc
+		for index := 0; index < 10; index++ {
+			p2.Put(index)
+		}
+		gtest.Assert(p2.Size(), 10)
+		v2, err2 = p2.Get()
+		gtest.Assert(err2, nil)
+		gtest.Assert(v2, 0)
+		assertIndex = 0
+		p2.Close()
+		time.Sleep(3 * time.Second)
+	})
+
+	gtest.Case(t, func() {
+		//
+		//expire < 0
+		p3 := gpool.New(-1, nil)
+		v3, err3 := p3.Get()
+		gtest.Assert(err3, errors.New("pool is empty"))
+		gtest.Assert(v3, nil)
+	})
+}