增加设置一次性有效租约的方法

middleware/etcd/string_test.go

@@ -159,3 +159,17 @@ func TestWatchKeyOnceForTimeout(t *testing.T) {
 
 	WatchKeyOnce(nil, key, dealFunc, timeout, timeoutFunc)
 }
+
+// TestLeaseOnce ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 7:37 下午 2021/11/23
+func TestLeaseOnce(t *testing.T) {
+	key := "lock"
+	fmt.Println(LeaseOnce(nil, key, "lock", 10))
+	for i := 0; i < 15; i++ {
+		fmt.Println(Get(nil, key, 1))
+		time.Sleep(time.Second)
+	}
+}