#!/bin/sh

# Usage:
# runtest [applet1] [applet2...]

# Run one old-style test.
# Tests are stored in applet/testcase shell scripts.
# They are run using "sh -x -e applet/testcase".
# Option -e will make testcase stop on the first failed command.
run_applet_testcase()
{
	local applet=$1
	local testcase=$2

	local status
	local uc_applet=$(echo $applet | tr a-z A-Z)
	local testname=$(basename $testcase)

	if grep -q "^# CONFIG_${uc_applet} is not set$" $bindir/.config; then
		echo "UNTESTED: $testname"
		return 0
	fi

	if grep -q "^# FEATURE: " $testcase; then
		local feature=`sed -ne 's/^# FEATURE: //p' $testcase`

		if grep -q "^# ${feature} is not set$" $bindir/.config; then
			echo "UNTESTED: $testname"
			return 0
		fi
	fi

	rm -rf ".tmpdir.$applet"
	mkdir -p ".tmpdir.$applet"
	cd ".tmpdir.$applet" || return 1

#	echo "Running testcase $testcase"
	d="$tsdir" sh -x -e "$testcase" >"$testname.stdout.txt" 2>&1
	status=$?
	if [ $status != 0 ]; then
		echo "FAIL: $testname"
		if [ x"$VERBOSE" != x ]; then
			cat "$testname.stdout.txt"
		fi
	else
		echo "PASS: $testname"
	fi

	cd ..
	rm -rf ".tmpdir.$applet"

	return $status
}

# Run all old-style tests for given applet
run_applet_tests()
{
	local applet=$1
	local status=0
	for testcase in $tsdir/$applet/*; do
		if [ "$testcase" = "$tsdir/$applet/CVS" ]; then
			continue
		fi
		run_applet_testcase $applet $testcase
		test $? = 0 || status=1
	done
	return $status
}


[ -n "$tsdir" ] || tsdir=$(pwd)
[ -n "$bindir" ] || bindir=$(dirname $(pwd))
PATH="$bindir:$PATH"

if [ x"$VERBOSE" = x ]; then
	export VERBOSE=
fi

if [ x"$1" = x"-v" ]; then
	export VERBOSE=1
	shift
fi

implemented=$(
	$bindir/busybox 2>&1 |
	while read line; do
		if [ x"$line" = x"Currently defined functions:" ]; then
			xargs | sed 's/,//g'
			break
		fi
	done
	)

applets="$implemented"
if [ $# -ne 0 ]; then
	applets="$@"
fi

# Populate a directory with links to all busybox applets

LINKSDIR="$bindir/runtest-tempdir-links"
rm -rf "$LINKSDIR" 2>/dev/null
mkdir "$LINKSDIR"
for i in $implemented; do
	ln -s $bindir/busybox "$LINKSDIR"/$i
done

# Set up option flags so tests can be selective.
export OPTIONFLAGS=:$(sed -nr 's/^CONFIG_//p' $bindir/.config | sed 's/=.*//' | xargs | sed 's/ /:/g')

status=0
for applet in $applets; do
	if [ "$applet" = "links" ]; then continue; fi

	# Any old-style tests for this applet?
	if [ "$applet" != "CVS" -a -d "$tsdir/$applet" ]; then
		run_applet_tests "$applet"
		test $? = 0 || status=1
	fi

	# Is this a new-style test?
	if [ -f "${applet}.tests" ]; then
		if [ ! -h "$LINKSDIR/$applet" ] && [ "${applet:0:4}" != "all_" ]; then
			echo "SKIPPED: $applet (not built)"
			continue
		fi
#		echo "Running test ${tsdir:-.}/${applet}.tests"
		PATH="$LINKSDIR:$tsdir:$bindir:$PATH" "${tsdir:-.}/${applet}.tests"
		test $? = 0 || status=1
	fi
done

# Leaving the dir makes it somewhat easier to run failed test by hand
#rm -rf "$LINKSDIR"

if [ $status != 0 -a x"$VERBOSE" = x ]; then
	echo "Failures detected, running with -v (verbose) will give more info"
fi
exit $status