freebsd-skq/tools/regression/tmpfs/h_funcs.subr
2010-03-02 22:25:50 +00:00

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#!/bin/sh
#
# $NetBSD: h_funcs.subr,v 1.5 2006/11/09 16:20:06 jmmv Exp $
#
# Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Julio M. Merino Vidal, developed as part of Google's Summer of Code
# 2005 program.
#
# 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
#
# $FreeBSD$
#
#
# Helper functions for tests written in shell script.
#
Prog_Name=${0##*/}
Src_Dir=$(pwd)
Unprived_User=
Verbose=2
Work_Dir=$(pwd)/tmp
# -------------------------------------------------------------------------
# die
#
# Called by tests when a command fails unexpectedly. Terminates
# execution and tries to clean up the mount point.
#
die() {
if [ -d ${Work_Dir} ]; then
cd ${Src_Dir}
umount ${Work_Dir}
rmdir ${Work_Dir}
fi
[ ${Verbose} -eq 2 ] && err "Test ended unexpectedly"
[ ${Verbose} -eq 1 ] && echo " failed."
exit 1
}
# -------------------------------------------------------------------------
# err message
#
# Shows the given error message and terminates the program.
#
err() {
echo "${Prog_Name}: $*" 1>&2
exit 1
}
# -------------------------------------------------------------------------
# test_mount [args]
#
# Mounts tmpfs over ${Work_Dir} and changes the current directory
# to the mount point. Optional arguments may be passed to the
# mount command.
#
test_mount() {
mkdir ${Work_Dir} || die
if [ $# -gt 0 ]; then
mount -t tmpfs "$@" tmpfs ${Work_Dir} || die
else
mount -t tmpfs tmpfs ${Work_Dir} || die
fi
cd ${Work_Dir}
}
# -------------------------------------------------------------------------
# test_name message
#
# Prints a message about what a test is going to do.
#
test_name() {
[ ${Verbose} -gt 1 ] && echo " $*..."
}
# -------------------------------------------------------------------------
# test_unmount
#
# Unmounts the file system mounted by test_mount.
#
test_unmount() {
cd -
umount ${Work_Dir} || die
rmdir ${Work_Dir} || die
}
# -------------------------------------------------------------------------
# kqueue_monitor expected_nevents file1 [.. fileN]
#
# Monitors the commands given through stdin (one per line) using
# kqueue and stores the events raised in a log that can be later
# verified with kqueue_check.
#
kqueue_monitor() {
nev=${1}; shift
test_name "Running kqueue-monitored commands and expecting" \
"${nev} events"
${Src_Dir}/h_tools kqueue ${*} >kqueue.log || return 1
got=$(wc -l kqueue.log | awk '{ print $1 }')
test ${got} -eq ${nev}
}
# -------------------------------------------------------------------------
# kqueue_check file event
#
# Checks if kqueue raised the given event when monitoring the
# given file.
#
kqueue_check() {
grep "^${1} - ${2}$" kqueue.log >/dev/null
}
# -------------------------------------------------------------------------
main() {
local args
[ $(id -un) = root ] || err "Must be run as root"
args=$(getopt u:v:w: $*)
if [ $? -ne 0 ]; then
echo "Usage: ${Prog_Name} [-u unprived_user] [-v level] " \
"[-w root_dir]" 1>&2
return 1
fi
set -- ${args}
while [ $# -gt 0 ]; do
case "$1" in
-u)
Unprived_User="$2"; shift
;;
-v)
Verbose="$2"; shift
;;
-w)
Work_Dir="$2"; shift
;;
--)
shift; break
;;
esac
shift
done
[ ${Verbose} -eq 1 ] && echo -n "${Prog_Name}:"
[ ${Verbose} -eq 2 ] && echo "${Prog_Name}: Running tests"
test_run
[ ${Verbose} -eq 1 ] && echo " ok."
[ ${Verbose} -eq 2 ] && echo "${Prog_Name}: All tests were successful"
return 0
}
main "$@"