diff --git a/bindings/__test__.py b/bindings/__test__.py
index 3953c65..b3bf85d 100755
--- a/bindings/__test__.py
+++ b/bindings/__test__.py
@@ -101,6 +101,16 @@ if __name__ == "__main__":
             print(gh.getpadding())
             print(gh.getunknownoffset())
             mh = pyMeshHeader(3, data)
+            print("-------------")
+            try:
+                mh = pyMeshHeader(87, data)
+            except RuntimeError as e:
+                print(str(e))
+            try:
+                mh = pyMesh(87, data)
+            except RuntimeError as e:
+                print(str(e))
+            print("-------------")
             mh.show()
             m = pyMesh(0, data)
             m.show()