#!/bin/sh

verbose=false

if [ "x$1" = "x-v" ]
then
	verbose=true
	out=/dev/stdout
	err=/dev/stderr
else
	out=/dev/null
	err=/dev/null
fi

pts=5
timeout=30

runbochs() {
	# Find the address of the kernel readline function,
	# which the kernel monitor uses to read commands interactively.
	brkaddr=`grep readline obj/kern/kernel.sym | sed -e's/ .*$//g'`
	#echo "brkaddr $brkaddr"

	# Run Bochs, setting a breakpoint at readline(),
	# and feeding in appropriate commands to run, then quit.
	(
		echo vbreak 0x8:0x$brkaddr
		echo c
		echo die
		echo quit
	) | (
		ulimit -t $timeout
		bochs -q 'display_library: nogui' \
			'parport1: enabled=1, file="bochs.out"'
	) >$out 2>$err
}


# Usage: runtest <tagname> <defs> <strings...>
runtest() {
	perl -e "print '$1: '"
	rm -f obj/kern/init.o obj/kern/kernel obj/kern/bochs.img
	if $verbose
	then
		echo "gmake $2... "
	fi
	if ! gmake $2 >$out
	then
		echo gmake failed 
		exit 1
	fi
	runbochs
	if [ ! -s bochs.out ]
	then
		echo 'no bochs.out'
	else
		shift
		shift
		continuetest "$@"
	fi
}

quicktest() {
	perl -e "print '$1: '"
	shift
	continuetest "$@"
}

continuetest() {
	okay=yes

	not=false
	for i
	do
		if [ "x$i" = "x!" ]
		then
			not=true
		elif $not
		then
			if egrep "^$i\$" bochs.out >/dev/null
			then
				echo "got unexpected line '$i'"
				if $verbose
				then
					exit 1
				fi
				okay=no
			fi
			not=false
		else
			if ! egrep "^$i\$" bochs.out >/dev/null
			then
				echo "missing '$i'"
				if $verbose
				then
					exit 1
				fi
				okay=no
			fi
			not=false
		fi
	done
	if [ "$okay" = "yes" ]
	then
		score=`echo $pts+$score | bc`
		echo OK
	else
		echo WRONG
	fi
}

# Usage: runtest1 [-tag <tagname>] <progname>
runtest1() {
	if [ $1 = -tag ]
	then
		shift
		tag=$1
		prog=$2
		shift
		shift
	else
		tag=$1
		prog=$1
		shift
	fi
	runtest "$tag" "DEFS=-DTEST=_binary_obj_user_${prog}_start DEFS+=-DTESTSIZE=_binary_obj_user_${prog}_size" "$@"
}


score=0

# Reset the file system to its original, pristine state
resetfs() {
	rm -f obj/fs/fs.img
	gmake obj/fs/fs.img >$out
}


resetfs

runtest1 -tag 'fs i/o' testfsipc \
	'FS can do I/O' \
	! 'idle loop can do I/O' \

quicktest 'read_block' \
	'superblock is good' \

quicktest 'write_block' \
	'write_block is good' \

quicktest 'read_bitmap' \
	'read_bitmap is good' \

quicktest 'alloc_block' \
	'alloc_block is good' \

quicktest 'file_open' \
	'file_open is good' \

quicktest 'file_get_block' \
	'file_get_block is good' \

quicktest 'file_truncate' \
	'file_truncate is good' \

quicktest 'file_flush' \
	'file_flush is good' \

quicktest 'file rewrite' \
	'file rewrite is good' \

quicktest 'serv_*' \
	'serve_open is good' \
	'serve_map is good' \
	'serve_close is good' \
	'stale fileid is good' \

echo PART A SCORE: $score/55

resetfs

score=0
pts=10
runtest1 -tag 'motd display' writemotd \
	'OLD MOTD' \
	'This is /motd, the message of the day.' \
	'NEW MOTD' \
	'This is the NEW message of the day!' \

runtest1 -tag 'motd change' writemotd \
	'OLD MOTD' \
	'This is the NEW message of the day!' \
	'NEW MOTD' \
	! 'This is /motd, the message of the day.' \

resetfs

pts=25
runtest1 -tag 'spawn via icode' icode \
	'icode: read /motd' \
	'This is /motd, the message of the day.' \
	'icode: spawn /init' \
	'init: running' \
	'init: data seems okay' \
	'icode: exiting' \
	'init: bss seems okay' \
	"init: args: 'init' 'initarg1' 'initarg2'" \
	'init: exiting' \

echo PART B SCORE: $score/45

exit 0