ovs/tests/daemon-py.at

AT_BANNER([daemon unit tests - Python3])

AT_SETUP([daemon - Python3])
# Skip this test for Windows, echo $! gives shell pid instead of parent process
AT_SKIP_IF([test "$IS_WIN32" = "yes"])
AT_KEYWORDS([python daemon])

on_exit 'kill $(cat *.pid)'
pidfile=test-daemon.py.pid

# Start the daemon and wait for the pidfile to get created
# and that its contents are the correct pid.
AT_CHECK([$PYTHON3 $srcdir/test-daemon.py --pidfile & echo $!], [0], [stdout])
pid=$(cat stdout)

OVS_WAIT_UNTIL([test -s $pidfile], [kill $pid])
AT_CHECK([test $pid = $(cat $pidfile)])
AT_CHECK([kill -0 $pid])

# Kill the daemon and make sure that the pidfile gets deleted.
kill $pid
OVS_WAIT_WHILE([kill -0 $pid])
AT_CHECK([test ! -e $pidfile])
AT_CLEANUP

AT_SETUP([daemon --monitor - Python3])
# Skip this test for Windows, echo $! gives shell pid instead of parent process
AT_SKIP_IF([test "$IS_WIN32" = "yes"])

on_exit 'kill $(cat *.pid)'
pidfile=test-daemon.py.pid

# Start the daemon and wait for the pidfile to get created.
AT_CHECK([$PYTHON3 $srcdir/test-daemon.py --pidfile --monitor & echo $!], [0], [stdout])
monitor=$(cat stdout)
OVS_WAIT_UNTIL([test -s $pidfile])
child=$(cat $pidfile)

# Check that the pidfile names a running process,
# and that the parent process of that process is our child process.
check_ancestors $child $monitor

# Kill the daemon process, making it look like a segfault,
# and wait for a new child process to get spawned.
AT_CHECK([kill -SEGV $child])
OVS_WAIT_WHILE([kill -0 $child])
OVS_WAIT_UNTIL([test -s $pidfile && test $(cat $pidfile) != $child])
child2=$(cat $pidfile)

# Check that the pidfile names a running process,
# and that the parent process of that process is our child process.
check_ancestors $child2 $monitor

# Kill the daemon process with SIGTERM, and wait for the daemon
# and the monitor processes to go away and the pidfile to get deleted.
AT_CHECK([kill $child2])
OVS_WAIT_WHILE([kill -0 $monitor || kill -0 $child2 || test -e $pidfile])
AT_CLEANUP

AT_SETUP([daemon --monitor restart exit code - Python3])
# Skip this test for Windows, echo $! gives shell pid instead of parent process
AT_SKIP_IF([test "$IS_WIN32" = "yes"])

on_exit 'kill $(cat *.pid)'
pidfile=test-daemon.py.pid

# Start the daemon and wait for the pidfile to get created.
AT_CHECK([$PYTHON3 $srcdir/test-daemon.py --pidfile --monitor & echo $!], [0], [stdout])
monitor=$(cat stdout)
OVS_WAIT_UNTIL([test -s $pidfile])
child=$(cat $pidfile)

# Check that the pidfile names a running process,
# and that the parent process of that process is our child process.
check_ancestors $child $monitor

# HUP the daemon process causing it to throw an exception,
# and wait for a new child process to get spawned.
AT_CHECK([kill -HUP $child])
OVS_WAIT_WHILE([kill -0 $child])
OVS_WAIT_UNTIL([test -s $pidfile && test $child != $(cat $pidfile)])
child2=$(cat $pidfile)

# Check that the pidfile names a running process,
# and that the parent process of that process is our child process.
check_ancestors $child2 $monitor

# Kill the daemon process with SIGTERM, and wait for the daemon
# and the monitor processes to go away and the pidfile to get deleted.
AT_CHECK([kill $child2])
OVS_WAIT_WHILE([kill -0 $monitor || kill -0 $child2 || test -e $pidfile])
AT_CLEANUP

AT_SETUP([daemon --detach - Python3])

# Skip this test for Windows, the pid file not removed if the daemon is killed
AT_SKIP_IF([test "$IS_WIN32" = "yes"])

on_exit 'kill $(cat *.pid)'
pidfile=test-daemon.py.pid

# Start the daemon and make sure that the pidfile exists immediately.
# We don't wait for the pidfile to get created because the daemon is
# supposed to do so before the parent exits.
AT_CHECK([$PYTHON3 $srcdir/test-daemon.py --pidfile --detach --no-chdir], [0])
AT_CHECK([test -s $pidfile])
pid=$(cat $pidfile)
check_ancestors $pid 1

# Kill the daemon and make sure that the pidfile gets deleted.
AT_CHECK([kill $pid])
OVS_WAIT_WHILE([kill -0 $pid])
AT_CHECK([test ! -e $pidfile])
AT_CLEANUP

AT_SETUP([daemon --detach --monitor - Python3])

# Skip this test for Windows, uses Linux specific kill signal
AT_SKIP_IF([test "$IS_WIN32" = "yes"])

on_exit 'kill $(cat *.pid)'
pidfile=test-daemon.py.pid

# Start the daemon and make sure that the pidfile exists immediately.
# We don't wait for the pidfile to get created because the daemon is
# supposed to do so before the parent exits.
AT_CHECK([$PYTHON3 $srcdir/test-daemon.py --pidfile --detach --no-chdir --monitor], [0])
AT_CHECK([test -s $pidfile])
child=$(cat $pidfile)
AT_CHECK([parent_pid $child], [0], [stdout])
monitor=$(cat stdout)

# Check that the pidfile names a running process,
# and that the parent process of that process is a running process,
# and that the parent process of that process is init.
check_ancestors $child $monitor 1

# Kill the daemon process, making it look like a segfault,
# and wait for a new daemon process to get spawned.
AT_CHECK([kill -SEGV $child])
OVS_WAIT_WHILE([kill -0 $child])
OVS_WAIT_UNTIL([test -s $pidfile && test $(cat $pidfile) != $child])
child2=$(cat $pidfile)

# Check that the pidfile names a running process,
# and that the parent process of that process is our child process.
check_ancestors $child2 $monitor 1

# Kill the daemon process with SIGTERM, and wait for the daemon
# and the monitor processes to go away and the pidfile to get deleted.
AT_CHECK([kill $child2])
OVS_WAIT_WHILE([kill -0 $child2 || kill -0 $monitor || test -e $pidfile])
AT_CLEANUP

AT_SETUP([daemon --detach startup errors - Python3])
AT_CHECK([$PYTHON3 $srcdir/test-daemon.py --pidfile --detach --no-chdir --bail], [1], [], [stderr])
AT_CHECK([grep 'test-daemon.py: exiting after daemonize_start() as requested' stderr],
  [0], [ignore])
AT_CHECK([test ! -s test-daemon.py.pid])
AT_CLEANUP

AT_SETUP([daemon --detach --monitor startup errors - Python3])
AT_CAPTURE_FILE([pid])
AT_CHECK([$PYTHON3 $srcdir/test-daemon.py --pidfile --detach --no-chdir --monitor --bail], [1], [], [stderr])
AT_CHECK([grep 'test-daemon.py: exiting after daemonize_start() as requested' stderr],
  [0], [ignore])
AT_CHECK([test ! -s test-daemon.py.pid])
AT_CLEANUP

AT_SETUP([daemon --detach closes standard fds - Python3])
# Skip this test for Windows, uses Linux specific kill signal
AT_SKIP_IF([test "$IS_WIN32" = "yes"])

AT_CHECK([(yes 2>stderr; echo $? > status) | $PYTHON3 $srcdir/test-daemon.py --pidfile --detach --no-chdir])
AT_CHECK([kill $(cat test-daemon.py.pid)])
AT_CHECK([test -s status])
if grep '[[bB]]roken pipe' stderr >/dev/null 2>&1; then
  # Something in the environment caused SIGPIPE to be ignored, but
  # 'yes' at least told us that it got EPIPE.  Good enough; we know
  # that stdout was closed.
  :
else
  # Otherwise make sure that 'yes' died from SIGPIPE.
  AT_CHECK([kill -l `cat status`], [0], [PIPE
])
fi
AT_CLEANUP

AT_SETUP([daemon --detach --monitor closes standard fds - Python3])
# Skip this test for Windows, uses Linux specific kill signal
AT_SKIP_IF([test "$IS_WIN32" = "yes"])
AT_CHECK([(yes 2>stderr; echo $? > status) | $PYTHON3 $srcdir/test-daemon.py --pidfile --detach --no-chdir], [0], [], [])
AT_CHECK([kill $(cat test-daemon.py.pid)])
AT_CHECK([test -s status])
if grep '[[bB]]roken pipe' stderr >/dev/null 2>&1; then
  # Something in the environment caused SIGPIPE to be ignored, but
  # 'yes' at least told us that it got EPIPE.  Good enough; we know
  # that stdout was closed.
  :
else
  # Otherwise make sure that 'yes' died from SIGPIPE.
  AT_CHECK([kill -l `cat status`], [0], [PIPE
])
fi
AT_CLEANUP