[PATCH net-next 2/5] selftests: drv-net: add stdout to the command failed exception

[Jakub Kicinski <kuba@kernel.org>]

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@kernel.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 eff50ddd9a9d..d47d684d9e02 100644
--- a/tools/testing/selftests/net/lib/py/utils.py
+++ b/tools/testing/selftests/net/lib/py/utils.py
@@ -34,7 +34,8 @@ 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, host=None):
-- 
2.44.0