diff --git a/src/test/resources/PositionDuplication.yang b/src/test/resources/PositionDuplication.yang
new file mode 100644
index 0000000..81eeb16
--- /dev/null
+++ b/src/test/resources/PositionDuplication.yang
@@ -0,0 +1,18 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+     leaf mybits {
+         type bits {
+             bit disable-nagle {
+                 position 0;
+             }
+             bit auto-sense-speed {
+                 position 1;
+             }
+             bit Ten-Mb-only {
+                 position 1;
+             }
+         }
+    }
+}