diff --git a/src/test/resources/file1UsesFile2TypeDefFile3Type/ietf-te-topology.yang b/src/test/resources/file1UsesFile2TypeDefFile3Type/ietf-te-topology.yang
new file mode 100644
index 0000000..c1d9324
--- /dev/null
+++ b/src/test/resources/file1UsesFile2TypeDefFile3Type/ietf-te-topology.yang
@@ -0,0 +1,17 @@
+   module ietf-te-topology {
+     yang-version 1;
+     namespace "urn:ietf:params:xml:ns:yang:ietf-te-topology";
+     // replace with IANA namespace when assigned
+
+     prefix "tet";
+
+     import ietf-network-topology {
+       prefix "nt";
+     }
+
+     container underlay-trail-src {
+         uses nt:tp-ref;
+         description
+           "Source TE link of the underlay trail.";
+       }
+   }