#!/bin/bash

SCRIPTDIR="$(readlink -f $(dirname $(type -p $0)))"
ROOTDIR="$(readlink -f $SCRIPTDIR/../../..)"
KPATCH="sudo $ROOTDIR/kpatch/kpatch"

set -o errexit

die() {
	echo "ERROR: $@" >&2
	exit 1
}

ko_to_test() {
	tmp=${1%.ko}-LOADED.test
	echo ${tmp#kpatch-}
}

# make sure any modules added here are disjoint
declare -a modules=(kpatch-cmdline-string.ko kpatch-meminfo-string.ko)

for mod in "${modules[@]}"; do
	testprog=$(ko_to_test $mod)
	$SCRIPTDIR/$testprog && die "$SCRIPTDIR/$testprog succeeded before loading any modules"
done

for mod in "${modules[@]}"; do
	$KPATCH load $mod
done

for mod in "${modules[@]}"; do
	testprog=$(ko_to_test $mod)
	$SCRIPTDIR/$testprog || die "$SCRIPTDIR/$testprog failed after loading modules"
done

for mod in "${modules[@]}"; do
	$KPATCH unload $mod
done

for mod in "${modules[@]}"; do
	testprog=$(ko_to_test $mod)
	$SCRIPTDIR/$testprog && die "$SCRIPTDIR/$testprog succeeded after unloading modules"
done

exit 0