2012-07-20 17:19:38 -07:00
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#!/usr/bin/env python
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2012-05-21 04:12:37 -07:00
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# This Source Code Form is subject to the terms of the Mozilla Public
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2012-07-02 13:22:54 -07:00
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# License, v. 2.0. If a copy of the MPL was not distributed with this file,
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# You can obtain one at http://mozilla.org/MPL/2.0/.
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2011-12-23 09:46:37 -08:00
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import os
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import subprocess
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import sys
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import unittest
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from time import sleep
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from mozprocess import processhandler
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here = os.path.dirname(os.path.abspath(__file__))
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# This tests specifically the case reported in bug 671316
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# TODO: Because of the way mutt works we can't just load a utils.py in here.
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# so, for all process handler tests, copy these two
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# utility functions to to the top of your source.
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def make_proclaunch(aDir):
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"""
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Makes the proclaunch executable.
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Params:
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aDir - the directory in which to issue the make commands
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Returns:
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the path to the proclaunch executable that is generated
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"""
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2012-07-20 17:19:38 -07:00
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# Ideally make should take care of this, but since it doesn't - on windows,
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# anyway, let's just call out both targets explicitly.
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p = subprocess.call(["make", "-C", "iniparser"], cwd=aDir)
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2011-12-23 09:46:37 -08:00
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p = subprocess.call(["make"], cwd=aDir)
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if sys.platform == "win32":
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exepath = os.path.join(aDir, "proclaunch.exe")
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else:
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exepath = os.path.join(aDir, "proclaunch")
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return exepath
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def check_for_process(processName):
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"""
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Use to determine if process is still running.
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Returns:
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detected -- True if process is detected to exist, False otherwise
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output -- if process exists, stdout of the process, '' otherwise
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"""
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output = ''
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if sys.platform == "win32":
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# On windows we use tasklist
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p1 = subprocess.Popen(["tasklist"], stdout=subprocess.PIPE)
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output = p1.communicate()[0]
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detected = False
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for line in output:
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if processName in line:
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detected = True
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break
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else:
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p1 = subprocess.Popen(["ps", "-A"], stdout=subprocess.PIPE)
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p2 = subprocess.Popen(["grep", processName], stdin=p1.stdout, stdout=subprocess.PIPE)
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p1.stdout.close()
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output = p2.communicate()[0]
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detected = False
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for line in output:
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if "grep %s" % processName in line:
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continue
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elif processName in line:
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detected = True
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break
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return detected, output
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class ProcTest2(unittest.TestCase):
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def __init__(self, *args, **kwargs):
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# Ideally, I'd use setUpClass but that only exists in 2.7.
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# So, we'll do this make step now.
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self.proclaunch = make_proclaunch(here)
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unittest.TestCase.__init__(self, *args, **kwargs)
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def test_process_waittimeout(self):
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""" Process is started, runs to completion before our wait times out
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"""
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p = processhandler.ProcessHandler([self.proclaunch,
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"process_waittimeout_10s.ini"],
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cwd=here)
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p.run()
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p.waitForFinish(timeout=30)
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detected, output = check_for_process(self.proclaunch)
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self.determine_status(detected,
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output,
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p.proc.returncode,
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p.didTimeout)
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def test_process_waitnotimeout(self):
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""" Process is started runs to completion while we wait indefinitely
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"""
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p = processhandler.ProcessHandler([self.proclaunch,
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"process_waittimeout_10s.ini"],
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cwd=here)
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p.run()
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p.waitForFinish()
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detected, output = check_for_process(self.proclaunch)
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self.determine_status(detected,
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output,
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p.proc.returncode,
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p.didTimeout)
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def determine_status(self,
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detected=False,
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output = '',
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returncode = 0,
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didtimeout = False,
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isalive=False,
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expectedfail=[]):
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"""
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Use to determine if the situation has failed.
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Parameters:
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detected -- value from check_for_process to determine if the process is detected
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output -- string of data from detected process, can be ''
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returncode -- return code from process, defaults to 0
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didtimeout -- True if process timed out, defaults to False
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isalive -- Use True to indicate we pass if the process exists; however, by default
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the test will pass if the process does not exist (isalive == False)
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expectedfail -- Defaults to [], used to indicate a list of fields that are expected to fail
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"""
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if 'returncode' in expectedfail:
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self.assertTrue(returncode, "Detected an expected non-zero return code")
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else:
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self.assertTrue(returncode == 0, "Detected non-zero return code of: %d" % returncode)
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if 'didtimeout' in expectedfail:
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self.assertTrue(didtimeout, "Process timed out as expected")
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else:
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self.assertTrue(not didtimeout, "Detected that process timed out")
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if detected:
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self.assertTrue(isalive, "Detected process is still running, process output: %s" % output)
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else:
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self.assertTrue(not isalive, "Process ended")
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if __name__ == '__main__':
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unittest.main()
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