linux-kernel - [PATCH v1 3/5] perf test: Workaround debug output in list test

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Date: Mon, 22 Jan 2024 16:06:02 -0800
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Ravi Bangoria <ravi.bangoria@....com>, Ross Zwisler <zwisler@...omium.org>, 
	Athira Rajeev <atrajeev@...ux.vnet.ibm.com>, Shirisha G <shirisha@...ux.ibm.com>, 
	Kajol Jain <kjain@...ux.ibm.com>, Kan Liang <kan.liang@...ux.intel.com>, 
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 3/5] perf test: Workaround debug output in list test

Write the json output to a specific file to avoid debug output
breaking it.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/tests/shell/list.sh | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/tools/perf/tests/shell/list.sh b/tools/perf/tests/shell/list.sh
index 22b004f2b23e..8a868ae64560 100755
--- a/tools/perf/tests/shell/list.sh
+++ b/tools/perf/tests/shell/list.sh
@@ -3,17 +3,32 @@
 # SPDX-License-Identifier: GPL-2.0
 
 set -e
-err=0
 
 shelldir=$(dirname "$0")
 # shellcheck source=lib/setup_python.sh
 . "${shelldir}"/lib/setup_python.sh
 
+list_output=$(mktemp /tmp/__perf_test.list_output.json.XXXXX)
+
+cleanup() {
+  rm -f "${list_output}"
+
+  trap - EXIT TERM INT
+}
+
+trap_cleanup() {
+  cleanup
+  exit 1
+}
+trap trap_cleanup EXIT TERM INT
+
 test_list_json() {
   echo "Json output test"
-  perf list -j | $PYTHON -m json.tool
+  perf list -j -o "${list_output}"
+  $PYTHON -m json.tool "${list_output}"
   echo "Json output test [Success]"
 }
 
 test_list_json
-exit $err
+cleanup
+exit 0
-- 
2.43.0.429.g432eaa2c6b-goog