netdev - [PATCH net-next v2 1/6] selftests: drv-net: add stdout to the command failed exception

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Message-ID: <20240416004556.1618804-2-kuba@kernel.org>
Date: Mon, 15 Apr 2024 17:45:51 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	pabeni@...hat.com,
	shuah@...nel.org,
	petrm@...dia.com,
	linux-kselftest@...r.kernel.org,
	willemdebruijn.kernel@...il.com,
	Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v2 1/6] selftests: drv-net: add stdout to the command failed exception

ping prints all the info to stdout. To make debug easier capture
stdout in the Exception raised when command unexpectedly fails.

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 tools/testing/selftests/net/lib/py/utils.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/lib/py/utils.py b/tools/testing/selftests/net/lib/py/utils.py
index f0d425731fd4..19612348c30d 100644
--- a/tools/testing/selftests/net/lib/py/utils.py
+++ b/tools/testing/selftests/net/lib/py/utils.py
@@ -33,7 +33,8 @@ import subprocess
         if self.proc.returncode != 0 and fail:
             if len(stderr) > 0 and stderr[-1] == "\n":
                 stderr = stderr[:-1]
-            raise Exception("Command failed: %s\n%s" % (self.proc.args, stderr))
+            raise Exception("Command failed: %s\nSTDOUT: %s\nSTDERR: %s" %
+                            (self.proc.args, stdout, stderr))
 
 
 def ip(args, json=None, ns=None):
-- 
2.44.0