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import os
import sys
import unittest
import psutil
here = os.path.dirname(os.path.abspath(__file__))
class ProcTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.proclaunch = os.path.join(here, "proclaunch.py")
cls.python = sys.executable
def determine_status(self, proc, isalive=False, expectedfail=()):
"""
Use to determine if the situation has failed.
Parameters:
proc -- the processhandler instance
isalive -- Use True to indicate we pass if the process exists; however, by default
the test will pass if the process does not exist (isalive == False)
expectedfail -- Defaults to [], used to indicate a list of fields
that are expected to fail
"""
returncode = proc.proc.returncode
didtimeout = proc.didTimeout
detected = psutil.pid_exists(proc.pid)
output = ''
# ProcessHandler has output when store_output is set to True in the constructor
# (this is the default)
if getattr(proc, 'output'):
output = proc.output
if 'returncode' in expectedfail:
self.assertTrue(returncode, "Detected an unexpected return code of: %s" % returncode)
elif isalive:
self.assertEqual(returncode, None, "Detected not None return code of: %s" % returncode)
else:
self.assertNotEqual(returncode, None, "Detected unexpected None return code of")
if 'didtimeout' in expectedfail:
self.assertTrue(didtimeout, "Detected that process didn't time out")
else:
self.assertTrue(not didtimeout, "Detected that process timed out")
if isalive:
self.assertTrue(detected, "Detected process is not running, "
"process output: %s" % output)
else:
self.assertTrue(not detected, "Detected process is still running, "
"process output: %s" % output)
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