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"
# run a program requiring exclusive access
c.sendline("vi exclusive_vi")
# The following call is necessary to ensure that the SIGTSTP
# we are sending below via 'sendcontrol' reaches the 'sleep' child.
proc_check.wait_until_child_is_in_foreground(c)
#checks the number of active child processes
#using a timeout based process count
proc_check.count_children_timeout(c, 1, 1)
#checks the number of active child processes
#at this moment in time
proc_check.count_active_children(c, 1)
# send SIGTSTP to 'sleep'
c.sendcontrol('z')
# shell should pick up that 'sleep' was stopped and respond with job status
# it should output a line such as [6]+ Stopped (sleep 60)
# (note that the provided regexp assumes the job name appears in parentheses,
def wait_for_fg_child():
proc_check.wait_until_child_is_in_foreground(console)
# spawn an instance of the shell
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"
# run a command
c.sendline("sleep 60")
# The following call is necessary to ensure that the SIGINT
# we are sending below reaches the 'sleep' child.
proc_check.wait_until_child_is_in_foreground(c)
#checks that our process is running
proc_check.count_active_children(c, 1)
# send SIGINT
c.sendintr()
#prompt check
assert c.expect(def_module.prompt) == 0, "Shell did not print expected prompt"
#checks that the process was ended
proc_check.count_active_children(c, 0)
c.sendline("exit")
def wait_for_fg_child():
proc_check.wait_until_child_is_in_foreground(console)
