X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_gtpu.py;h=4b7762857663285c3c583ef63696aba307027394;hb=c599c6f001bc28e1023fb5e74a27db37b1aae847;hp=f5b1089757e229529d90caded4e9f4ea9f69f91f;hpb=6459315569f49bcc2b3572f169192ded7323598f;p=vpp.git

diff --git a/test/test_gtpu.py b/test/test_gtpu.py
index f5b1089757e..4b776285766 100644
--- a/test/test_gtpu.py
+++ b/test/test_gtpu.py
@@ -168,7 +168,7 @@ class TestGtpu(BridgeDomain, VppTestCase):
                 teid=teid,
                 is_add=is_add)
             if r.sw_if_index == 0xffffffff:
-                raise "bad sw_if_index"
+                raise ValueError("bad sw_if_index: ~0")
 
     @classmethod
     def add_shared_mcast_dst_load(cls):