0,0 → 1,164 |
#!/usr/bin/python |
# |
# jobs_test: tests the jobs command |
# |
# Test the jobs command for status messages and proper output |
# of the command and jobid. Requires the following commands to be implemented |
# or otherwise usable: |
# |
# jobs, ctrl-z control, ctrl-c control, sleep, fg, clear |
# |
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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 bash. PS1 is the env variable from which bash |
# draws its prompt |
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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#check that the jobs list outputs nothing |
c.sendline(def_module.builtin_commands['jobs']) |
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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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#Wait until the sleep command takes over the foreground |
proc_check.wait_until_child_is_in_foreground(c) |
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#send the job to the background |
c.sendcontrol('z') |
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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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#Request the jobs list |
c.sendline(def_module.builtin_commands['jobs']) |
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#Check the jobs list |
(jobid, status_message, command_line) = shellio.parse_regular_expression(c, def_module.job_status_regex) |
assert status_message == def_module.jobs_status_msg['stopped'] and \ |
'sleep 30' in command_line, "Job status not properly displayed" |
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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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#Add another job |
c.sendline("sleep 300 &") |
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# pick up the background job output |
(jobid, pid) = shellio.parse_regular_expression(c, def_module.bgjob_regex) |
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assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
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#Both jobs need to be active and running before the jobs command is |
#sent. if this isn't so, the test is failed. |
proc_check.count_active_children(c, 2) |
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#Recheck the jobs list |
c.sendline(def_module.builtin_commands['jobs']) |
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#Check the jobs list |
(jobid, status_message, command_line) = \ |
shellio.parse_regular_expression(c, def_module.job_status_regex) |
(jobid2, status_message2, command_line2) = \ |
shellio.parse_regular_expression(c, def_module.job_status_regex) |
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# Check that the jobs list contains both jobs in some order |
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#check the first possible order of job statuses, and then |
#the second possible order. |
assert (status_message == def_module.jobs_status_msg['stopped'] and \ |
'sleep 30' in command_line and \ |
\ |
status_message2 == def_module.jobs_status_msg['running'] and \ |
'sleep 300' in command_line2) \ |
\ |
or \ |
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(status_message2 == def_module.jobs_status_msg['stopped'] and \ |
'sleep 30' in command_line2 and \ |
\ |
status_message == def_module.jobs_status_msg['running'] and \ |
'sleep 300' in command_line), "Job status not properly displayed" |
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# Check that there are no duplicate job id's. |
assert jobid != jobid2, "Duplicate job id's." |
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assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
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#bring the second sleep command back to foreground |
#so that we can end it with ctrl-c |
c.sendline(def_module.builtin_commands['fg'] % jobid2) |
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#Wait until the sleep command takes over the foreground |
proc_check.wait_until_child_is_in_foreground(c) |
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#ctrl-c to close the process |
c.sendintr() |
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#clear any printout of the old job that was just killed by ctrl-c |
c.sendline(def_module.builtin_commands['jobs']) |
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#check the prompt and move past this text |
assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
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#check the prompt and move past this text |
assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
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#check the jobs list |
c.sendline(def_module.builtin_commands['jobs']) |
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#check that the first job is still on the jobs list |
assert (jobid, status_message, command_line) == \ |
shellio.parse_regular_expression(c, def_module.job_status_regex), \ |
"The original job was not displayed properly after ending a previous job." |
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# ensure the prompt is printed |
assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
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# exit |
c.sendline("exit"); |
assert c.expect_exact("exit\r\n") == 0, "Shell output extraneous characters" |
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shellio.success() |