Tests: Raise exception, don't raise string.

[vpp.git] / test / test_gtpu.py

diff --git a/test/test_gtpu.py b/test/test_gtpu.py
index f5b1089..4b77628 100644 (file)
--- 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):