michael@0: import mozinfo
michael@0: import os
michael@0: import subprocess
michael@0: import sys
michael@0: import unittest
michael@0: 
michael@0: here = os.path.dirname(os.path.abspath(__file__))
michael@0: 
michael@0: def check_for_process(processName):
michael@0:     """
michael@0:         Use to determine if process of the given name is still running.
michael@0: 
michael@0:         Returns:
michael@0:         detected -- True if process is detected to exist, False otherwise
michael@0:         output -- if process exists, stdout of the process, '' otherwise
michael@0:     """
michael@0:     # TODO: replace with
michael@0:     # https://github.com/mozilla/mozbase/blob/master/mozprocess/mozprocess/pid.py
michael@0:     # which should be augmented from talos
michael@0:     # see https://bugzilla.mozilla.org/show_bug.cgi?id=705864
michael@0:     output = ''
michael@0:     if mozinfo.isWin:
michael@0:         # On windows we use tasklist
michael@0:         p1 = subprocess.Popen(["tasklist"], stdout=subprocess.PIPE)
michael@0:         output = p1.communicate()[0]
michael@0:         detected = False
michael@0:         for line in output.splitlines():
michael@0:             if processName in line:
michael@0:                 detected = True
michael@0:                 break
michael@0:     else:
michael@0:         p1 = subprocess.Popen(["ps", "-ef"], stdout=subprocess.PIPE)
michael@0:         p2 = subprocess.Popen(["grep", processName], stdin=p1.stdout, stdout=subprocess.PIPE)
michael@0:         p1.stdout.close()
michael@0:         output = p2.communicate()[0]
michael@0:         detected = False
michael@0:         for line in output.splitlines():
michael@0:             if "grep %s" % processName in line:
michael@0:                 continue
michael@0:             elif processName in line and not 'defunct' in line:
michael@0:                 detected = True
michael@0:                 break
michael@0: 
michael@0:     return detected, output
michael@0: 
michael@0: class ProcTest(unittest.TestCase):
michael@0: 
michael@0:     @classmethod
michael@0:     def setUpClass(cls):
michael@0:         cls.proclaunch = os.path.join(here, "proclaunch.py")
michael@0:         cls.python = sys.executable
michael@0: 
michael@0:     def determine_status(self,
michael@0:                          detected=False,
michael@0:                          output='',
michael@0:                          returncode=0,
michael@0:                          didtimeout=False,
michael@0:                          isalive=False,
michael@0:                          expectedfail=()):
michael@0:         """
michael@0:         Use to determine if the situation has failed.
michael@0:         Parameters:
michael@0:             detected -- value from check_for_process to determine if the process is detected
michael@0:             output -- string of data from detected process, can be ''
michael@0:             returncode -- return code from process, defaults to 0
michael@0:             didtimeout -- True if process timed out, defaults to False
michael@0:             isalive -- Use True to indicate we pass if the process exists; however, by default
michael@0:                        the test will pass if the process does not exist (isalive == False)
michael@0:             expectedfail -- Defaults to [], used to indicate a list of fields that are expected to fail
michael@0:         """
michael@0:         if 'returncode' in expectedfail:
michael@0:             self.assertTrue(returncode, "Detected an unexpected return code of: %s" % returncode)
michael@0:         elif isalive:
michael@0:             self.assertEqual(returncode, None, "Detected not None return code of: %s" % returncode)
michael@0:         else:
michael@0:             self.assertNotEqual(returncode, None, "Detected unexpected None return code of")
michael@0: 
michael@0:         if 'didtimeout' in expectedfail:
michael@0:             self.assertTrue(didtimeout, "Detected that process didn't time out")
michael@0:         else:
michael@0:             self.assertTrue(not didtimeout, "Detected that process timed out")
michael@0: 
michael@0:         if isalive:
michael@0:             self.assertTrue(detected, "Detected process is not running, process output: %s" % output)
michael@0:         else:
michael@0:             self.assertTrue(not detected, "Detected process is still running, process output: %s" % output)