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#!/usr/bin/env python
from __future__ import absolute_import
import os
import time
import unittest
import proctest
import signal
import sys
import mozunit
from mozprocess import processhandler
here = os.path.dirname(os.path.abspath(__file__))
class ProcTestKill(proctest.ProcTest):
"""Class to test various process tree killing scenatios"""
def test_kill_before_run(self):
"""Process is not started, and kill() is called"""
p = processhandler.ProcessHandler([self.python, "-V"])
self.assertRaises(RuntimeError, p.kill)
def test_process_kill(self):
"""Process is started, we kill it"""
p = processhandler.ProcessHandler(
[self.python, self.proclaunch, "process_normal_finish.ini"], cwd=here
)
p.run()
p.kill()
self.determine_status(p, expectedfail=("returncode",))
def test_process_kill_deep(self):
"""Process is started, we kill it, we use a deep process tree"""
p = processhandler.ProcessHandler(
[self.python, self.proclaunch, "process_normal_deep.ini"], cwd=here
)
p.run()
p.kill()
self.determine_status(p, expectedfail=("returncode",))
def test_process_kill_deep_wait(self):
"""Process is started, we use a deep process tree, we let it spawn
for a bit, we kill it"""
myenv = None
# On macosx1014, subprocess fails to find `six` when run with python3.
# This ensures that subprocess first looks to sys.path to find `six`.
if sys.platform == "darwin" and sys.version_info[0] > 2:
myenv = os.environ.copy()
myenv["PYTHONPATH"] = ":".join(sys.path)
p = processhandler.ProcessHandler(
[self.python, self.proclaunch, "process_normal_deep.ini"],
cwd=here,
env=myenv,
)
p.run()
# Let the tree spawn a bit, before attempting to kill
time.sleep(3)
p.kill()
self.determine_status(p, expectedfail=("returncode",))
def test_process_kill_broad(self):
"""Process is started, we kill it, we use a broad process tree"""
p = processhandler.ProcessHandler(
[self.python, self.proclaunch, "process_normal_broad.ini"], cwd=here
)
p.run()
p.kill()
self.determine_status(p, expectedfail=("returncode",))
def test_process_kill_broad_delayed(self):
"""Process is started, we use a broad process tree, we let it spawn
for a bit, we kill it"""
myenv = None
# On macosx1014, subprocess fails to find `six` when run with python3.
# This ensures that subprocess first looks to sys.path to find `six`.
if sys.platform == "darwin" and sys.version_info[0] > 2:
myenv = os.environ.copy()
myenv["PYTHONPATH"] = ":".join(sys.path)
p = processhandler.ProcessHandler(
[self.python, self.proclaunch, "process_normal_broad.ini"],
cwd=here,
env=myenv,
)
p.run()
# Let the tree spawn a bit, before attempting to kill
time.sleep(3)
p.kill()
self.determine_status(p, expectedfail=("returncode",))
@unittest.skipUnless(processhandler.isPosix, "posix only")
def test_process_kill_with_sigterm(self):
script = os.path.join(here, "scripts", "infinite_loop.py")
p = processhandler.ProcessHandler([self.python, script])
p.run()
p.kill()
self.assertEqual(p.proc.returncode, -signal.SIGTERM)
@unittest.skipUnless(processhandler.isPosix, "posix only")
def test_process_kill_with_sigint_if_needed(self):
script = os.path.join(here, "scripts", "infinite_loop.py")
p = processhandler.ProcessHandler([self.python, script, "deadlock"])
p.run()
time.sleep(1)
p.kill()
self.assertEqual(p.proc.returncode, -signal.SIGKILL)
@unittest.skipUnless(processhandler.isPosix, "posix only")
def test_process_kill_with_timeout(self):
script = os.path.join(here, "scripts", "ignore_sigterm.py")
p = processhandler.ProcessHandler([self.python, script])
p.run()
time.sleep(1)
t0 = time.time()
p.kill(sig=signal.SIGTERM, timeout=2)
self.assertEqual(p.proc.returncode, None)
self.assertGreaterEqual(time.time(), t0 + 2)
p.kill(sig=signal.SIGKILL)
self.assertEqual(p.proc.returncode, -signal.SIGKILL)
if __name__ == "__main__":
mozunit.main()