renice: add unit tests.

Sponsored by:	Klara, Inc.
This commit is contained in:
Dag-Erling Smørgrav 2022-08-25 19:49:43 +00:00
parent 65ee0a8495
commit 7ccdad905f
4 changed files with 179 additions and 0 deletions

View File

@ -1070,6 +1070,8 @@
..
procstat
..
renice
..
rs
..
sdiff

View File

@ -1,7 +1,12 @@
# @(#)Makefile 8.1 (Berkeley) 6/9/93
# $FreeBSD$
.include <src.opts.mk>
PROG= renice
MAN= renice.8
HAS_TESTS=
SUBDIR.${MK_TESTS}+= tests
.include <bsd.prog.mk>

View File

@ -0,0 +1,3 @@
ATF_TESTS_SH+= renice_test
.include <bsd.test.mk>

View File

@ -0,0 +1,169 @@
#!/bin/sh
#-
# Copyright (c) 2022 Klara, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# Name of user to use for -u tests when running as root. Beware that
# processes owned by that user will be affected by the test.
TEST_USER=nobody
_renice() {
atf_check -o empty -e ignore -s exit:0 renice "$@"
}
# Set a process's nice number to an absolute value
atf_test_case renice_abs_pid
renice_abs_pid_body() {
local pid nice incr
sleep 60 &
pid=$!
nice="$(ps -o nice= -p $pid)"
incr=3
_renice $((nice+incr)) $pid
atf_check_equal $((nice+incr)) "$(ps -o nice= -p $pid)"
kill $pid
}
# Change a process's nice number by a relative value
atf_test_case renice_rel_pid
renice_rel_pid_body() {
local pid nice incr
sleep 60 &
pid=$!
nice="$(ps -o nice= -p $pid)"
incr=3
_renice -n $incr $pid
_renice -p -n $incr $pid
_renice -n $incr -p $pid
atf_check_equal $((nice+incr+incr+incr)) "$(ps -o nice= -p $pid)"
kill $pid
}
# Set a process group's nice number to an absolute value
atf_test_case renice_abs_pgid
renice_abs_pgid_body() {
local pid pgid nice incr
# make sure target runs in a different pgrp than ours
pid=$(sh -mc "sleep 60 >/dev/null & echo \$!")
pgid="$(ps -o pgid= -p $pid)"
nice="$(ps -o nice= -p $pid)"
incr=3
_renice $((nice+incr)) -g $pgid
atf_check_equal $((nice+incr)) "$(ps -o nice= -p $pid)"
kill $pid
}
# Change a process group's nice number by a relative value
atf_test_case renice_rel_pgid
renice_rel_pgid_body() {
local pid pgid nice incr
# make sure target runs in a different pgrp than ours
pid=$(sh -mc "sleep 60 >/dev/null & echo \$!")
pgid="$(ps -o pgid= -p $pid)"
nice="$(ps -o nice= -p $pid)"
incr=3
_renice -g -n $incr $pgid
_renice -n $incr -g $pgid
atf_check_equal $((nice+incr+incr)) "$(ps -o nice= -p $pid)"
kill $pid
}
# Set a user's processes' nice numbers to an absolute value
atf_test_case renice_abs_user
renice_abs_user_head() {
atf_set "require.user" "root"
}
renice_abs_user_body() {
local user pid nice incr
pid=$(su -m $TEST_USER -c "sleep 60 >/dev/null & echo \$!")
nice="$(ps -o nice= -p $pid)"
incr=3
_renice $((nice+incr)) -u $TEST_USER
atf_check_equal $((nice+incr)) "$(ps -o nice= -p $pid)"
kill $pid
}
# Change a user's processes' nice numbers by a relative value
atf_test_case renice_rel_user
renice_rel_user_head() {
atf_set "require.user" "root"
}
renice_rel_user_body() {
local user pid nice incr
pid=$(su -m $TEST_USER -c "sleep 60 >/dev/null & echo \$!")
nice="$(ps -o nice= -p $pid)"
incr=3
_renice -u -n $incr $TEST_USER
_renice -n $incr -u $TEST_USER
atf_check_equal $((nice+incr+incr)) "$(ps -o nice= -p $pid)"
kill $pid
}
# Test various delimiter positions
atf_test_case renice_delim
renice_delim_body() {
local pid nice incr
sleep 60 &
pid=$!
nice="$(ps -o nice= -p $pid)"
incr=0
# without -p
: $((incr=incr+1))
_renice -- $((nice+incr)) $pid
atf_check_equal $((nice+incr)) "$(ps -o nice= -p $pid)"
: $((incr=incr+1))
_renice $((nice+incr)) -- $pid
atf_check_equal $((nice+incr)) "$(ps -o nice= -p $pid)"
: $((incr=incr+1))
_renice $((nice+incr)) $pid --
atf_check_equal $((nice+incr)) "$(ps -o nice= -p $pid)"
# with -p
: $((incr=incr+1))
_renice -p -- $((nice+incr)) $pid
atf_check_equal $((nice+incr)) "$(ps -o nice= -p $pid)"
: $((incr=incr+1))
_renice -p $((nice+incr)) -- $pid
atf_check_equal $((nice+incr)) "$(ps -o nice= -p $pid)"
: $((incr=incr+1))
_renice -p $((nice+incr)) $pid --
atf_check_equal $((nice+incr)) "$(ps -o nice= -p $pid)"
: $((incr=incr+1))
_renice $((nice+incr)) -p -- $pid
atf_check_equal $((nice+incr)) "$(ps -o nice= -p $pid)"
: $((incr=incr+1))
_renice $((nice+incr)) -p $pid --
atf_check_equal $((nice+incr)) "$(ps -o nice= -p $pid)"
kill $pid
}
atf_init_test_cases() {
atf_add_test_case renice_abs_pid
atf_add_test_case renice_rel_pid
atf_add_test_case renice_abs_pgid
atf_add_test_case renice_rel_pgid
atf_add_test_case renice_abs_user
atf_add_test_case renice_rel_user
atf_add_test_case renice_delim
}