kvm-unit-tests: output test results in TAP13 format

This patch introduces TAP13 results format of kvm-unit-tests by
adding flag '-t|--tap13' to kvm-unit-tests run_tests.sh script,
it menas that the test results output in a TAP13 format.

The new script, parse-output.py, to handle the parsing of kvm-unit-tests
outputs. The script reads input from the standard input, processes each
line to determine the test results as the LAVA understand.

e.g.
  <test-name> <pass|fail|skip>

Signed-off-by: Naresh Kamboju <naresh.kamboju@linaro.org>

Author: Naresh Kamboju

automated/linux/kvm-unit-tests/kvm-unit-tests.sh

@@ -27,26 +27,16 @@ while getopts "s:m:g:h" o; do
 done
 
 parse_output() {
-    # Parse each type of results
-    # A note on the sed line used below to strip color codes:
-    # busybox's sed does not implement e.g. '\x1b', and so the literal
-    # control code is used below. Do not copy/paste it, or it will lose
-    # its magic.
-    grep -e PASS -e SKIP -e FAIL "${RESULT_LOG}" | \
-      sed 's/\[[0-9]*m//g' | \
-      sed -e 's/PASS/pass/g' \
-          -e 's/SKIP/skip/g' \
-          -e 's/FAIL/fail/g' | \
-       awk '{print $2" "$1}'  >> "${RESULT_FILE}"
-    cat "${RESULT_FILE}"
+    # Parse input test names and results log to results file
+    ./parse-output.py < "${RESULT_LOG}" | tee -a "${RESULT_FILE}"
 }
 
 kvm_unit_tests_run_test() {
     info_msg "running kvm unit tests ..."
     if [ "${SMP}" = "false" ]; then
-        taskset -c 0 ./run_tests.sh -a -v | tee -a "${RESULT_LOG}"
+        taskset -c 0 ./run_tests.sh -a -t -v | tee -a "${RESULT_LOG}"
     else
-        ./run_tests.sh -a -v | tee -a "${RESULT_LOG}"
+        ./run_tests.sh -a -t -v | tee -a "${RESULT_LOG}"
     fi
 }
 
@@ -84,8 +74,6 @@ install() {
 # Test run.
 ! check_root && error_msg "This script must be run as root"
 create_out_dir "${OUTPUT}"
-# shellcheck disable=SC2164
-cd "${OUTPUT}"
 
 info_msg "About to run kvm unit tests ..."
 info_msg "Output directory: ${OUTPUT}"
@@ -107,6 +95,7 @@ fi
 
 # Run kvm unit tests
 kvm_unit_tests_run_test
+cd - || exit 1
 
 # Parse and print kvm unit tests results
 parse_output

automated/linux/kvm-unit-tests/parse-output.py

@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+import sys
+import re
+
+
+def parse_line(line):
+    """
+    Parses a single line of input to extract the test result and description.
+
+    Args:
+        line (str): A single line of input.
+
+    Returns:
+        tuple: A tuple containing the result and description.
+    """
+
+    if not line.startswith("ok") and not line.startswith("not ok"):
+        return None, None
+
+    parts = re.split(r" \d+ - ", line)
+    if len(parts) < 2:
+        raise ValueError(f"Invalid line format: {line}")
+
+    result = "pass" if parts[0] == "ok" else "fail"
+    description = parts[1].strip()
+
+    if "# skip" in description.lower():
+        result = "skip"
+        description = description.split("# skip")[0].strip()
+
+    return result, description
+
+
+def sanitize_description(description):
+    """
+    Sanitizes the description by replacing spaces with dashes, removing special characters, and avoiding double dashes.
+
+    Args:
+        description (str): The test description.
+
+    Returns:
+        str: The sanitized description.
+    """
+    description = description.replace(" ", "-")
+    description = re.sub(r"[^a-zA-Z0-9_-]+", "", description)  # Slugify
+    description = re.sub(
+        r"-+", "-", description
+    )  # Replace multiple dashes with a single dash
+    return description
+
+
+def main():
+    """
+    Main function to parse input, process each line, and output the results.
+    """
+    lines = sys.stdin.readlines()
+
+    for line in lines:
+        result, description = parse_line(line)
+
+        if not result or not description:
+            continue
+
+        print(f"{sanitize_description(description)} {result}")
+
+
+if __name__ == "__main__":
+    main()