def test_get_pid():
from metrique.utils import get_pid, rand_chars, remove_file
assert get_pid() == 0
assert get_pid(None) == 0
path = os.path.join(cache_dir, '%s.pid' % rand_chars(prefix='get_pid'))
# invalid path returns 0
assert get_pid(path) == 0
with open(path, 'w') as f:
f.write("1")
assert exists(path)
assert get_pid(path) == 1
remove_file(path)
with open(path, 'w') as f:
f.write("a")
try:
get_pid(path)
except ValueError:
pass
else:
assert False
remove_file(path)
# invalid path returns 0
assert get_pid("boomboompow") == 0
def test_get_pid():
from metrique.utils import get_pid, rand_chars, remove_file
assert get_pid() == 0
assert get_pid(None) == 0
path = os.path.join(cache_dir, '%s.pid' % rand_chars(prefix='get_pid'))
# invalid path returns 0
assert get_pid(path) == 0
with open(path, 'w') as f:
f.write("1")
assert exists(path)
assert get_pid(path) == 1
remove_file(path)
with open(path, 'w') as f:
f.write("a")
try:
get_pid(path)
except ValueError:
pass
else:
assert False
remove_file(path)
# invalid path returns 0
assert get_pid("boomboompow") == 0
def test_terminate():
from metrique.utils import terminate, sys_call, get_pid, clear_stale_pids
import signal
pid_file = os.path.join(cache_dir, 'test.pid')
sys_call('sleep 30', fork=True, pid_file=pid_file, shell=False)
sleep(1)
pid = get_pid(pid_file)
running = clear_stale_pids(pid)
assert running
terminate(pid, sig=signal.SIGTERM)
sleep(1)
running = clear_stale_pids(pid)
assert not running
# since we didn't tell it where to find the pid_file
# it won't be cleaned up
assert exists(pid_file)
# this time we point to a pid_file and it gets cleaned up
terminate(pid_file, sig=signal.SIGTERM)
assert not exists(pid_file)
# invalid pids are ignored
assert terminate(-1) is None
def test_terminate():
from metrique.utils import terminate, sys_call, get_pid, clear_stale_pids
import signal
pid_file = os.path.join(cache_dir, 'test.pid')
sys_call('sleep 30', fork=True, pid_file=pid_file, shell=False)
sleep(1)
pid = get_pid(pid_file)
running = clear_stale_pids(pid)
assert running
terminate(pid, sig=signal.SIGTERM)
sleep(1)
running = clear_stale_pids(pid)
assert not running
# since we didn't tell it where to find the pid_file
# it won't be cleaned up
assert exists(pid_file)
# this time we point to a pid_file and it gets cleaned up
terminate(pid_file, sig=signal.SIGTERM)
assert not exists(pid_file)
# invalid pids are ignored
assert terminate(-1) is None