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#!/usr/bin/env python
from __future__ import absolute_import
import os
import signal
import sys
import unittest
import mozinfo
import mozunit
import proctest
import time
from mozprocess import processhandler
here = os.path.dirname(os.path.abspath(__file__))
class ProcTestPoll(proctest.ProcTest):
"""Class to test process poll."""
def test_poll_before_run(self):
"""Process is not started, and poll() is called."""
p = processhandler.ProcessHandler(
[self.python, self.proclaunch, "process_normal_finish.ini"], cwd=here
)
self.assertRaises(RuntimeError, p.poll)
def test_poll_while_running(self):
"""Process is started, and poll() is called."""
p = processhandler.ProcessHandler(
[self.python, self.proclaunch, "process_normal_finish.ini"], cwd=here
)
p.run()
returncode = p.poll()
self.assertEqual(returncode, None)
self.determine_status(p, True)
p.kill()
def test_poll_after_kill(self):
"""Process is killed, and poll() is called."""
p = processhandler.ProcessHandler(
[self.python, self.proclaunch, "process_normal_finish.ini"], cwd=here
)
p.run()
returncode = p.kill()
# We killed the process, so the returncode should be non-zero
if mozinfo.isWin:
self.assertGreater(
returncode, 0, 'Positive returncode expected, got "%s"' % returncode
)
else:
self.assertLess(
returncode, 0, 'Negative returncode expected, got "%s"' % returncode
)
self.assertEqual(returncode, p.poll())
self.determine_status(p)
def test_poll_after_kill_no_process_group(self):
"""Process (no group) is killed, and poll() is called."""
p = processhandler.ProcessHandler(
[
self.python,
self.proclaunch,
"process_normal_finish_no_process_group.ini",
],
cwd=here,
ignore_children=True,
)
p.run()
returncode = p.kill()
# We killed the process, so the returncode should be non-zero
if mozinfo.isWin:
self.assertGreater(
returncode, 0, 'Positive returncode expected, got "%s"' % returncode
)
else:
self.assertLess(
returncode, 0, 'Negative returncode expected, got "%s"' % returncode
)
self.assertEqual(returncode, p.poll())
self.determine_status(p)
def test_poll_after_double_kill(self):
"""Process is killed twice, and poll() is called."""
p = processhandler.ProcessHandler(
[self.python, self.proclaunch, "process_normal_finish.ini"], cwd=here
)
p.run()
p.kill()
returncode = p.kill()
# We killed the process, so the returncode should be non-zero
if mozinfo.isWin:
self.assertGreater(
returncode, 0, 'Positive returncode expected, got "%s"' % returncode
)
else:
self.assertLess(
returncode, 0, 'Negative returncode expected, got "%s"' % returncode
)
self.assertEqual(returncode, p.poll())
self.determine_status(p)
@unittest.skipIf(sys.platform.startswith("win"), "Bug 1493796")
def test_poll_after_external_kill(self):
"""Process is killed externally, and poll() is called."""
p = processhandler.ProcessHandler(
[self.python, self.proclaunch, "process_normal_finish.ini"], cwd=here
)
p.run()
os.kill(p.pid, signal.SIGTERM)
# Allow the output reader thread to finish processing remaining data
for i in range(0, 100):
time.sleep(processhandler.INTERVAL_PROCESS_ALIVE_CHECK)
returncode = p.poll()
if returncode is not None:
break
# We killed the process, so the returncode should be non-zero
if mozinfo.isWin:
self.assertEqual(
returncode,
signal.SIGTERM,
'Positive returncode expected, got "%s"' % returncode,
)
else:
self.assertEqual(
returncode,
-signal.SIGTERM,
'%s expected, got "%s"' % (-signal.SIGTERM, returncode),
)
self.assertEqual(returncode, p.wait())
self.determine_status(p)
if __name__ == "__main__":
mozunit.main()