#!/usr/bin/env expect
############################################################################
# Purpose: Test of Slurm functionality
#          Confirm that a job executes with the specified nodes
#          (--nodelist and --exclude options).
############################################################################
# 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://slurm.schedmd.com/>.
# 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

#
# Submit a 3+ node job
#
set host_0      ""
set host_1      ""
set host_2      ""
set host_3      ""
set node_cnt    3
set timeout     $max_job_delay

set available [llength [get_nodes_by_state]]
if {$available < $node_cnt} {
    skip "Not enough nodes currently available ($available avail, $node_cnt needed)"
}

spawn $srun -N$node_cnt -l -t1 $bin_printenv SLURMD_NODENAME
expect {
	-re "Node count specification invalid" {
		skip "Can't test srun task distribution"
	}
	-re "configuration not available" {
		skip "Partition too small for test"
	}
	-re "($number): *($re_word_str)" {
		if {$expect_out(1,string) == 0} {
			set host_0 $expect_out(2,string)
		}
		if {$expect_out(1,string) == 1} {
			set host_1 $expect_out(2,string)
		}
		if {$expect_out(1,string) == 2} {
			set host_2 $expect_out(2,string)
		}
		if {$expect_out(1,string) == 3} {
			set host_3 $expect_out(2,string)
		}
		exp_continue
	}
	timeout {
		fail "srun not responding"
	}
	eof {
		wait
	}
}

#
# Verify node count
#
subtest {$host_0 ne ""} "Should get hostname of task 0"
subtest {$host_1 ne ""} "Should get hostname of task 1"
subtest {$host_2 ne ""} "Should get hostname of task 2"
if {[get_config_param "FrontendName"] ne "MISSING"} {
	skip "Additional testing is incompatible with front-end systems"
}
subtest {$host_3 eq ""} "Should start no more than three tasks"

set dup_hostname 0
if {$host_0 eq $host_1} {
	incr dup_hostname
}
if {$host_0 eq $host_2} {
	incr dup_hostname 1
}
subtest {$dup_hostname != 1} "Should not reuse a node in the allocation"
set exclude_node $host_0
set include_node $host_2

#
# Submit a job explicitly excluding a node
#
set host_0      ""
set host_1      ""
set host_2      ""
set timeout $max_job_delay
spawn $srun -N2 -l --exclude=$exclude_node -t1 $bin_printenv SLURMD_NODENAME
expect {
	-re "Invalid node name specified" {
		skip "Appears you are using multiple slurmd testing. This test won't work in that fashion"
	}

	-re "($number): *($re_word_str)" {
		if {$expect_out(1,string) == 0} {
			set host_0 $expect_out(2,string)
		}
		if {$expect_out(1,string) == 1} {
			set host_1 $expect_out(2,string)
		}
		if {$expect_out(1,string) == 2} {
			set host_2 $expect_out(2,string)
		}
		exp_continue
	}
	timeout {
		fail "srun not responding"
	}
	eof {
		wait
	}
}

#
# Verify node count and names
#
subtest {$host_0 ne ""} "Should get hostname of task 0"
subtest {$host_1 ne ""} "Should get hostname of task 1"
subtest {$host_2 eq ""} "Should start no more than two tasks"
set dup_hostname 0
if {$host_0 eq $exclude_node} {
	set dup_hostname 1
}
if {$host_1 eq $exclude_node} {
	set dup_hostname 1
}
subtest {$dup_hostname != 1} "Should not allocate an excluded node"

#
# Submit a job explicitly including a node
#
set host_0      ""
set host_1      ""
set timeout $max_job_delay
spawn $srun -N1 -l --nodelist=$include_node -t1 $bin_printenv SLURMD_NODENAME
expect {
	-re "($number): *($re_word_str)" {
		if {$expect_out(1,string) == 0} {
			set host_0 $expect_out(2,string)
		}
		if {$expect_out(1,string) == 1} {
			set host_1 $expect_out(2,string)
		}
		exp_continue
	}
	timeout {
		fail "srun not responding"
	}
	eof {
		wait
	}
}

#
# Verify node count and names
#
subtest {$host_0 ne ""} "Should get hostname of task 0"
subtest {$host_1 eq ""} "Should start no more than one task"
set dup_hostname 0
if {$host_0 eq $include_node} {
	set dup_hostname 1
}
subtest {$dup_hostname != 0} "Allocation should not lack an included node"
