#!/usr/bin/expect
############################################################################
# Purpose: Test of SLURM functionality
#          Confirm that job time limit function works (-t option).
#
# Output:  "TEST: #.#" followed by "SUCCESS" if test was successful, OR
#          "FAILURE: ..." otherwise with an explanation of the failure, OR
#          anything else indicates a failure mode that must be investigated.
############################################################################
# Copyright (C) 2002-2007 The Regents of the University of California.
# Copyright (C) 2008 Lawrence Livermore National Security.
# Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
# Written by Morris Jette <jette1@llnl.gov>
# CODE-OCEC-09-009. All rights reserved.
# 
# This file is part of SLURM, a resource management program.
# For details, see <https://computing.llnl.gov/linux/slurm/>.
# Please also read the included file: DISCLAIMER.
#  
# SLURM is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
# 
# SLURM is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
# 
# You should have received a copy of the GNU General Public License along
# with SLURM; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA.
############################################################################
source ./globals

set test_id     "1.7"
set exit_code   0
set job_id      0

# NOTE: If you increase sleep_time, change job time limits as well
set sleep_time  180

print_header $test_id

#
# Make sure sleep time is no larger than InactiveLimit
set inactive_limit  $sleep_time
set kill_wait       $sleep_time
set over_time_limit 0
log_user 0
spawn $scontrol show config
expect {
	-re "InactiveLimit *= ($number)" {
		set inactive_limit $expect_out(1,string)
		exp_continue
	}
	-re "KillWait *= ($number)" {
		set kill_wait $expect_out(1,string)
		exp_continue
	}
	-re "OverTimeLimit *= UNLIMITED" {
		set over_time_limit 9999
		exp_continue
	}
	-re "OverTimeLimit *= ($number)" {
		set over_time_limit $expect_out(1,string)
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: scontrol not responding\n"
		set exit_code 1
	}
	eof {
		wait
	}
}
log_user 1
if {$inactive_limit == 0} {
	set inactive_limit $sleep_time
}
if {$inactive_limit < 120} {
	send_user "\nWARNING: InactiveLimit ($inactive_limit) is too low for this test\n"
	exit 0
}
if {$kill_wait > 60} {
	send_user "\nWARNING: KillWait ($kill_wait) is too high for this test\n"
	exit 0
}
if {$over_time_limit > 0} {
	send_user "\nWARNING: OverTimeLimit too high for this test ($over_time_limit > 0)\n"
	exit 0
}
if {$inactive_limit < $sleep_time} {
	set sleep_time [expr $inactive_limit + $kill_wait]
	send_user "\nReset job sleep time to $sleep_time seconds\n"
}

#
# Execute a couple of three minute jobs; one with a one minute time  
# limit and the other with a four minute time limit. Confirm jobs 
# are terminated on a timeout as required. Note that SLURM time 
# limit enforcement has a resolution of about one minute. 
#
# Ideally the job gets a "job exceeded timelimit" followed by a 
# "Terminated" message, but if the timing is bad only the "Terminated" 
# message gets sent. This is due to srun recognizing job termination 
# prior to the message from slurmd being processed.
#
set timeout [expr $max_job_delay + $sleep_time]
set timed_out 0
set srun_pid [spawn $srun -t1 $bin_sleep $sleep_time]
expect {
	-re "time limit" {
		set timed_out 1
		exp_continue
	}
	-re "TIME LIMIT" {
		set timed_out 1
		exp_continue
	}
	-re "Terminated" {
		set timed_out 1
		exp_continue
	}
	-re "Unable to contact" {
		send_user "\nFAILURE: slurm appears to be down\n"
		exit 1
	}
	timeout {
		send_user "\nFAILURE: srun not responding\n"
		slow_kill $srun_pid
		set exit_code 1
	}
	eof {
		wait
	}
}
if {$timed_out == 1} {
	send_user "Early termination is expected, no worries.\n"
} else {
	send_user "\nFAILURE: time limit not enforced\n"
	set exit_code 1
}

set completions 0
set srun_pid [spawn $srun -t4 $bin_sleep $sleep_time]
expect {
	-re "time limit" {
		set completions -1
		exp_continue
	}
	-re "TIME LIMIT" {
		set completions -1
		exp_continue
	}
	-re "Terminated" {
		set completions -1
		exp_continue
	}
	-re "Unable to contact" {
		send_user "\nFAILURE: slurm appears to be down\n"
		exit 1
	}
	-re "error" {
		set completions -1
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: srun not responding\n"
		slow_kill $srun_pid
		set exit_code 1
	}
	eof {
		wait
		incr completions
	}
}
if {$completions != 1} {
	send_user "\nFAILURE: job failed to complete properly\n"
	set exit_code 1
}

if {$exit_code == 0} {
	send_user "\nSUCCESS\n"
}
exit $exit_code
