[PATCH 4/4] perf test: Update perf timechart test

[Namhyung Kim]

To include IO-only and backtrace modes to test different code paths.

  $ sudo perf test -vv timechart
  135: perf timechart tests                        : Running
  135: perf timechart tests:
  ---- start ----
  test child forked, pid 2413665
  perf timechart Basic test
  perf timechart Basic test [Success]
  perf timechart IO-only test
  perf timechart IO-only test [Success]
  perf timechart Backtrace test
  perf timechart Backtrace test [Success]
  ---- end(0) ----
  135: perf timechart tests                        : Ok

  === Test Summary ===
  Passed main tests : 1
  Passed subtests   : 0
  Skipped tests     : 0
  Failed tests      : 0

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
 tools/perf/tests/shell/timechart.sh | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/tools/perf/tests/shell/timechart.sh b/tools/perf/tests/shell/timechart.sh
index b14b3472c2846b32..40072b32171a9a1c 100755
--- a/tools/perf/tests/shell/timechart.sh
+++ b/tools/perf/tests/shell/timechart.sh
@@ -9,7 +9,7 @@ perfdata=$(mktemp /tmp/__perf_timechart_test.perf.data.XXXXX)
 output=$(mktemp /tmp/__perf_timechart_test.output.XXXXX.svg)
 
 cleanup() {
-	rm -f "${perfdata}"
+	rm -f "${perfdata}"*
 	rm -f "${output}"
 	trap - EXIT TERM INT
 }
@@ -22,38 +22,41 @@ trap_cleanup() {
 trap trap_cleanup EXIT TERM INT
 
 test_timechart() {
-	echo "Basic perf timechart test"
+	NAME=$1
+	OPTION=$2
+
+	echo "perf timechart ${NAME} test"
 
 	# Try to record timechart data.
 	# perf timechart record uses system-wide recording and specific tracepoints.
 	# If it fails (e.g. permissions, missing tracepoints), skip the test.
-	if ! perf timechart record -o "${perfdata}" true > /dev/null 2>&1; then
-		echo "Basic perf timechart test [Skipped: perf timechart record failed (permissions/events?)]"
+	if ! perf timechart record -o "${perfdata}" ${OPTION} true > /dev/null 2>&1; then
+		echo "perf timechart ${NAME} test [Skipped: perf timechart record failed (permissions/events?)]"
 		return
 	fi
 
 	# Generate the timechart
 	if ! perf timechart -i "${perfdata}" -o "${output}" > /dev/null 2>&1; then
-		echo "Basic perf timechart test [Failed: perf timechart command failed]"
+		echo "perf timechart ${NAME} test [Failed: perf timechart command failed]"
 		err=1
 		return
 	fi
 
 	# Check if output file exists and is not empty
 	if [ ! -s "${output}" ]; then
-		echo "Basic perf timechart test [Failed: output file is empty or missing]"
+		echo "perf timechart ${NAME} test [Failed: output file is empty or missing]"
 		err=1
 		return
 	fi
 
 	# Check if it looks like an SVG
 	if ! grep -q "svg" "${output}"; then
-		echo "Basic perf timechart test [Failed: output doesn't look like SVG]"
+		echo "perf timechart ${NAME} test [Failed: output doesn't look like SVG]"
 		err=1
 		return
 	fi
 
-	echo "Basic perf timechart test [Success]"
+	echo "perf timechart ${NAME} test [Success]"
 }
 
 if ! perf check feature -q libtraceevent ; then
@@ -62,6 +65,9 @@ if ! perf check feature -q libtraceevent ; then
 	exit 2
 fi
 
-test_timechart
+test_timechart "Basic" ""
+test_timechart "IO-only" "-I"
+test_timechart "Backtrace" "-g"
+
 cleanup
 exit $err
-- 
2.54.0.1032.g2f8565e1d1-goog