Add pipe mode test for json data conversion. Tidy up exit and cleanup
code.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 .../shell/test_perf_data_converter_json.sh    | 33 ++++++++++++++-----
 1 file changed, 24 insertions(+), 9 deletions(-)

diff --git a/tools/perf/tests/shell/test_perf_data_converter_json.sh b/tools/perf/tests/shell/test_perf_data_converter_json.sh
index c4f1b59d116f..35d81e39a26c 100755
--- a/tools/perf/tests/shell/test_perf_data_converter_json.sh
+++ b/tools/perf/tests/shell/test_perf_data_converter_json.sh
@@ -15,29 +15,42 @@ result=$(mktemp /tmp/__perf_test.output.json.XXXXX)
 
 cleanup()
 {
-	rm -f "${perfdata}"
+	rm -f "${perfdata}*"
 	rm -f "${result}"
 	trap - exit term int
 }
 
 trap_cleanup()
 {
+	echo "Unexpected signal in ${FUNCNAME[1]}"
 	cleanup
-	exit ${err}
+	exit 1
 }
 trap trap_cleanup exit term int
 
 test_json_converter_command()
 {
-	echo "Testing Perf Data Convertion Command to JSON"
-	perf record -o "$perfdata" -F 99 -g -- perf test -w noploop > /dev/null 2>&1
-	perf data convert --to-json "$result" --force -i "$perfdata" >/dev/null 2>&1
+	echo "Testing Perf Data Conversion Command to JSON"
+	perf record -o "$perfdata" -F 99 -g -- perf test -w noploop
+	perf data convert --to-json "$result" --force -i "$perfdata"
 	if [ "$(cat ${result} | wc -l)" -gt "0" ] ; then
 		echo "Perf Data Converter Command to JSON [SUCCESS]"
 	else
 		echo "Perf Data Converter Command to JSON [FAILED]"
 		err=1
-		exit
+	fi
+}
+
+test_json_converter_pipe()
+{
+	echo "Testing Perf Data Conversion Command to JSON (Pipe mode)"
+	perf record -o - -F 99 -g -- perf test -w noploop > "$perfdata"
+	cat "$perfdata" | perf data convert --to-json "$result" --force -i -
+	if [ "$(cat ${result} | wc -l)" -gt "0" ] ; then
+		echo "Perf Data Converter Command to JSON (Pipe mode) [SUCCESS]"
+	else
+		echo "Perf Data Converter Command to JSON (Pipe mode) [FAILED]"
+		err=1
 	fi
 }
 
@@ -50,16 +63,18 @@ validate_json_format()
 		else
 			echo "The file does not contain valid JSON format [FAILED]"
 			err=1
-			exit
 		fi
 	else
 		echo "File not found [FAILED]"
-		err=2
-		exit
+		err=1
 	fi
 }
 
 test_json_converter_command
 validate_json_format
 
+test_json_converter_pipe
+validate_json_format
+
+cleanup
 exit ${err}
-- 
2.53.0.239.g8d8fc8a987-goog