Test script to check functional usage of systemd.

Following check are implemented :
Check systemd starts with PID 1.
Check if systemctl start and stop option is able to work for a service.
Check for failed service on device using systemctl status.
Script returns with exit code 1 if any of the subtest is failed.
Usage Command Verified : ./run-test.sh systemd

Signed-off-by: Abhishek Sinha <[email protected]>

Author: avisinone

Runner/suites/Platform/systemd/run.sh

@@ -0,0 +1,130 @@
+#!/bin/sh
+# Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+# SPDX-License-Identifier: BSD-3-Clause-Clear
+
+# Robustly find and source init_env
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+INIT_ENV=""
+SEARCH="$SCRIPT_DIR"
+while [ "$SEARCH" != "/" ]; do
+    if [ -f "$SEARCH/init_env" ]; then
+        INIT_ENV="$SEARCH/init_env"
+        break
+    fi
+    SEARCH=$(dirname "$SEARCH")
+done
+
+if [ -z "$INIT_ENV" ]; then
+    echo "[ERROR] Could not find init_env (starting at $SCRIPT_DIR)" >&2
+    exit 1
+fi
+
+# Only source if not already loaded (idempotent)
+if [ -z "$__INIT_ENV_LOADED" ]; then
+    # shellcheck disable=SC1090
+    . "$INIT_ENV"
+fi
+
+# Always source functestlib.sh, using $TOOLS exported by init_env
+# shellcheck disable=SC1090,SC1091
+. "$TOOLS/functestlib.sh"
+
+TESTNAME="systemd"
+test_path=$(find_test_case_by_name "$TESTNAME")
+cd "$test_path" || exit 1
+res_file="./$TESTNAME.res"
+
+ANY_SUBTEST_FAILED="false"
+
+update_test_pass(){
+    subtestname=$1
+    msg=$2
+    echo "$subtestname PASS" >> "$res_file"
+    log_pass "$msg"
+}
+
+update_test_fail(){
+    subtestname=$1
+    msg=$2
+    echo "$subtestname FAIL" >> "$res_file"
+    log_fail "$msg"
+    ANY_SUBTEST_FAILED="true"
+}
+
+# Function to check if systemd is running with PID 1
+
+check_systemd_pid() {
+    SUBTESTNAME="CheckSystemdPID"
+    log_info "----------------------------------------------------"
+    log_info "-------- Starting $SUBTESTNAME Functional Test --------"
+    if [ "$(ps -p 1 -o comm=)" = "systemd" ]; then 
+        update_test_pass "$SUBTESTNAME" "Systemd init started with PID 1"
+    else
+        update_test_fail "$SUBTESTNAME" "Systemd init did not start with PID 1"
+    fi
+    log_info "----------------------------------------------------"
+    log_info "-------- Stopping $SUBTESTNAME Functional Test --------"
+}
+
+# Function to check if systemctl stop command works for systemd-user-sessions.service
+
+check_systemctl_stop() {
+    SUBTESTNAME="CheckSystemctlStop"
+    log_info "----------------------------------------------------"
+    log_info "-------- Starting $SUBTESTNAME Functional Test --------"
+    systemctl stop systemd-user-sessions.service
+    sleep 5
+    if systemctl is-active --quiet systemd-user-sessions.service; then
+        update_test_fail "$SUBTESTNAME" "Not able to stop the service systemd-user-sessions with systemctl"
+    else
+        update_test_pass "$SUBTESTNAME" "Able to stop the service systemd-user-sessions with systemctl"
+    fi
+    log_info "----------------------------------------------------"
+    log_info "-------- Stopping $SUBTESTNAME Functional Test --------"
+}
+
+# Function to check if systemctl start command works for systemd-user-sessions.service
+check_systemctl_start() {
+    SUBTESTNAME="CheckSystemctlStart"
+    log_info "----------------------------------------------------"
+    log_info "-------- Starting $SUBTESTNAME Functional Test --------"
+    systemctl start systemd-user-sessions.service
+    if systemctl is-active --quiet systemd-user-sessions.service; then
+        update_test_pass "$SUBTESTNAME" "Service started successfully with systemctl command"
+    else
+        update_test_fail "$SUBTESTNAME" "Failed to start service with systemctl command"
+    fi
+    log_info "----------------------------------------------------"
+    log_info "-------- Stopping $SUBTESTNAME Functional Test --------"
+}
+
+# Function to check for any failed services and print them
+check_failed_services() {
+    SUBTESTNAME="CheckFailedServices"
+    log_info "----------------------------------------------------"
+    log_info "-------- Starting $SUBTESTNAME Functional Test --------"
+    failed_services=$(systemctl --failed --no-legend --plain | awk '{print $1}')
+    if [ -z "$failed_services" ]; then
+        update_test_pass "$SUBTESTNAME" "No service is in failed state on device"
+      else
+        update_test_fail "$SUBTESTNAME" "------ List of failed services --------"
+        log_fail $failed_services
+        log_fail "--------------------------------------"
+    fi
+    log_info "----------------------------------------------------"
+    log_info "-------- Stopping $SUBTESTNAME Functional Test --------"
+}
+
+# Call the functions
+check_systemd_pid
+check_systemctl_stop
+check_systemctl_start
+check_failed_services
+
+
+if [ "$ANY_SUBTEST_FAILED" = "true" ]; then
+    exit 1
+else
+    exit 0
+fi
+