0,0 → 1,77 |
#!/usr/bin/python |
# |
# stop_test: tests the stop command |
# |
# Test the stop command for stopping a process by its pid. |
# Requires the following commands to be implemented |
# or otherwise usable: |
# |
# stop, sleep |
# |
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import sys, imp, atexit |
sys.path.append("/home/courses/cs3214/software/pexpect-dpty/"); |
import pexpect, shellio, signal, time, os, re, proc_check |
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#Ensure the shell process is terminated |
def force_shell_termination(shell_process): |
c.close(force=True) |
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#pulling in the regular expression and other definitions |
definitions_scriptname = sys.argv[1] |
def_module = imp.load_source('', definitions_scriptname) |
logfile = None |
if hasattr(def_module, 'logfile'): |
logfile = def_module.logfile |
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# spawn an instance of the shell |
c = pexpect.spawn(def_module.shell, drainpty=True, logfile=logfile) |
atexit.register(force_shell_termination, shell_process=c) |
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# set timeout for all following 'expect*' calls to 2 seconds |
c.timeout = 2 |
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# ensure that shell prints expected prompt |
assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
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# run a command |
c.sendline("sleep 30 &") |
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# pull the jobid and pid from the background process printout |
(jobid, pid) = shellio.parse_regular_expression(c, def_module.bgjob_regex) |
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# ensure that the shell prints the expected prompt |
assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
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#The job needs to be running when we call stop |
proc_check.count_children_timeout(c, 1, 1) |
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# send the stop command to the process |
c.sendline(def_module.builtin_commands['stop'] % jobid) |
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#Ensure that sleep has enough time to stop before we read its |
#/proc/ pid /stat file. |
time.sleep(.5) |
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#Ensure that sleep is now stopped in the background, and is not |
#the foreground process. |
assert not proc_check.check_pid_fgpgrp(pid), \ |
'Error: process is in the foreground' |
assert proc_check.check_pid_status(pid, 'T'), 'Error: process not stopped' |
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#check the prompt prints |
assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
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c.sendline("exit"); |
assert c.expect_exact("exit\r\n") == 0, "Shell output extraneous characters" |
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shellio.success() |