diff --git a/test/src/cpp11/template.cpp b/test/src/cpp11/template.cpp
index 77f9d89..828ab56 100644
--- a/test/src/cpp11/template.cpp
+++ b/test/src/cpp11/template.cpp
@@ -27,8 +27,8 @@ void TestRingBuffer(){
     for(uint32_t i = 0;i < x.Size();i++){
         printf("%d ",x.At(i));
     }
-    ret = x.Take(in,20);
-    std::cout<<"take "<<ret<<"\r\n"<<std::endl;
+    ret = x.Copy(in,516);
+    std::cout<<"\r\ncopy "<<ret<<"\r\n"<<std::endl;
     for(uint32_t i = 0;i < ret;i++){
         printf("%d ",in[i]);
     }
@@ -37,6 +37,11 @@ void TestRingBuffer(){
     for(uint32_t i = 0;i < ret;i++){
         printf("%d ",in[i]);
     }
+    ret = x.Take(in,20);
+    std::cout<<"take "<<ret<<"\r\n"<<std::endl;
+    for(uint32_t i = 0;i < ret;i++){
+        printf("%d ",in[i]);
+    }
 
 
 }
\ No newline at end of file