[PATCH v1 13/14] perf test: Add shell test to validate JUnit XML reporting output

[Ian Rogers <irogers@google.com>]

Add a shell test script (test_test_junit_output.sh) to execute perf test
with the -j/--junit option and validate that the generated test report
complies perfectly with standard XML formatting using Python's ElementTree
XML parser.

Assisted-by: Gemini-CLI:Google Gemini 3
Signed-off-by: Ian Rogers <irogers@google.com>
---
 .../tests/shell/test_test_junit_output.sh     | 63 +++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100755 tools/perf/tests/shell/test_test_junit_output.sh

diff --git a/tools/perf/tests/shell/test_test_junit_output.sh b/tools/perf/tests/shell/test_test_junit_output.sh
new file mode 100755
index 000000000000..5104ac1e1e6d
--- /dev/null
+++ b/tools/perf/tests/shell/test_test_junit_output.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# perf test junit XML output validation
+
+set -e
+
+err=0
+
+shelldir=$(dirname "$0")
+# shellcheck source=lib/setup_python.sh
+. "${shelldir}"/lib/setup_python.sh
+
+result=$(mktemp /tmp/__perf_test.output.xml.XXXXX)
+
+cleanup()
+{
+	rm -f "${result}"
+	trap - exit term int
+}
+
+trap_cleanup()
+{
+	echo "Unexpected signal in ${FUNCNAME[1]}"
+	cleanup
+	exit 1
+}
+trap trap_cleanup exit term int
+
+test_junit_output()
+{
+	echo "Testing perf test JUnit XML output command"
+	perf test -v -j"$result" util || true
+	if [ -s "$result" ] ; then
+		echo "perf test JUnit XML output command [SUCCESS]"
+	else
+		echo "perf test JUnit XML output command [FAILED]"
+		err=1
+	fi
+}
+
+validate_xml_format()
+{
+	echo "Validating perf test converted JUnit XML file"
+	if [ -f "$result" ] ; then
+		if $PYTHON -c \
+		    "import xml.etree.ElementTree as ET; ET.parse('$result')" \
+		    >/dev/null 2>&1 ; then
+			echo "The file contains valid XML format [SUCCESS]"
+		else
+			echo "The file does not contain valid XML format [FAILED]"
+			err=1
+		fi
+	else
+		echo "File not found [FAILED]"
+		err=1
+	fi
+}
+
+test_junit_output
+validate_xml_format
+
+cleanup
+exit ${err}
-- 
2.54.0.563.g4f69b47b94-goog