MM Auth test: add test to re-use existing auth
diff --git a/openbsc/tests/mm_auth/mm_auth_test.ok b/openbsc/tests/mm_auth/mm_auth_test.ok
index 52feb36..cc0e769 100644
--- a/openbsc/tests/mm_auth/mm_auth_test.ok
+++ b/openbsc/tests/mm_auth/mm_auth_test.ok
@@ -22,3 +22,9 @@
wrapped: db_get_lastauthtuple_for_subscr(): rc = 0
wrapped: db_sync_lastauthtuple_for_subscr(): rc = 0
auth_get_tuple_for_subscr(key_seq=7) --> auth_action == AUTH_DO_AUTH_THEN_CIPH
+
+* test_auth_reuse()
+wrapped: db_get_authinfo_for_subscr(): rc = 0
+wrapped: db_get_lastauthtuple_for_subscr(): rc = 0
+wrapped: db_sync_lastauthtuple_for_subscr(): rc = 0
+auth_get_tuple_for_subscr(key_seq=3) --> auth_action == AUTH_DO_CIPH