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| #!/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 |
| # |
| |
| import sys, imp, atexit |
| sys.path.append("/home/courses/cs3214/software/pexpect-dpty/"); |
| import pexpect, shellio, signal, time, os, re, proc_check |
| |
| #Ensure the shell process is terminated |
| def force_shell_termination(shell_process): |
| c.close(force=True) |
| |
| #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 |
| |
| # 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) |
| |
| # set timeout for all following 'expect*' calls to 2 seconds |
| c.timeout = 2 |
| |
| # ensure that shell prints expected prompt |
| assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
| |
| |
| |
| #check that the jobs list outputs nothing |
| c.sendline(def_module.builtin_commands['jobs']) |
| |
| # ensure that shell prints expected prompt |
| assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
| |
| |
| |
| # run a command |
| c.sendline("sleep 30") |
| |
| #Wait until the sleep command takes over the foreground |
| # This is NOT a bullet-proof fix, you may fail on occasion! |
| time.sleep(1) |
| |
| |
| #send the job to the background |
| c.sendcontrol('z') |
| |
| # ensure that the shell prints the expected prompt |
| assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
| |
| |
| |
| #Request the jobs list |
| c.sendline(def_module.builtin_commands['jobs']) |
| |
| #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" |
| |
| # ensure that the shell prints the expected prompt |
| assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
| |
| |
| |
| #Add another job |
| c.sendline("sleep 300 &") |
| |
| # pick up the background job output |
| (jobid, pid) = shellio.parse_regular_expression(c, def_module.bgjob_regex) |
| |
| assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
| |
| #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) |
| |
| |
| |
| #Recheck the jobs list |
| c.sendline(def_module.builtin_commands['jobs']) |
| |
| #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) |
| |
| # Check that the jobs list contains both jobs in some order |
| |
| #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 \ |
| \ |
| (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" |
| |
| # Check that there are no duplicate job id's. |
| assert jobid != jobid2, "Duplicate job id's." |
| |
| assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
| |
| |
| |
| #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) |
| |
| |
| #Wait until the sleep command takes over the foreground |
| # This is NOT a bullet-proof fix, you may fail on occasion! |
| time.sleep(1) |
| |
| #ctrl-c to close the process |
| c.sendintr() |
| |
| |
| |
| #clear any printout of the old job that was just killed by ctrl-c |
| c.sendline(def_module.builtin_commands['jobs']) |
| |
| #check the prompt and move past this text |
| assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
| |
| |
| #check the prompt and move past this text |
| assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
| |
| |
| #check the jobs list |
| c.sendline(def_module.builtin_commands['jobs']) |
| |
| #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." |
| |
| # ensure the prompt is printed |
| assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt" |
| |
| |
| |
| # exit |
| c.sendline("exit"); |
| assert c.expect_exact("exit\r\n") == 0, "Shell output extraneous characters" |
| |
| shellio.success() |