From 29ac9c191966515192372472c7a1f22304352159 Mon Sep 17 00:00:00 2001
From: Ryan Gonzalez <ryan.gonzalez@collabora.com>
Date: Fri, 19 Sep 2025 16:02:13 -0500
Subject: [PATCH] system-test: Fix crash when a comparison with a non-string
 value fails

`orig` isn't necessarily a string, so the string concatenation here can
raise a TypeError.
---
 system/lib.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/system/lib.py b/system/lib.py
index f7761997..77670c86 100644
--- a/system/lib.py
+++ b/system/lib.py
@@ -517,7 +517,7 @@ class BaseTest(object):
         if gold != output:
             diff = "".join(difflib.unified_diff(
                 [l + "\n" for l in gold.split("\n")], [l + "\n" for l in output.split("\n")]))
-            raise Exception("content doesn't match:\n" + diff + "\n\nOutput:\n" + orig + "\n")
+            raise Exception(f"content doesn't match:\n{diff}\n\nOutput:\n{orig}\n")
 
     check = check_output