diff --git a/src/test/resources/DuplicateGroupingInModule.yang b/src/test/resources/DuplicateGroupingInModule.yang
new file mode 100644
index 0000000..d18b166
--- /dev/null
+++ b/src/test/resources/DuplicateGroupingInModule.yang
@@ -0,0 +1,21 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    grouping endpoint {
+        leaf address {
+            type ip-address;
+        }
+        leaf port {
+            type port-number;
+        }
+    }
+    grouping endpoint {
+        leaf address {
+            type ip-address;
+        }
+        leaf port {
+            type port-number;
+        }
+    }
+}