#!/bin/bash
#
# Copyright (C) - 2012 Christian Babeux <christian.babeux@efficios.com>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License, version 2 only, as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

TEST_DESC="Filtering - Unsupported operators"

CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../..
LTTNG_BIN="lttng"
SESSION_NAME="filter-unsupported-ops"
EVENT_NAME="bogus"
ENABLE_EVENT_STDERR="/tmp/unsupported-ops-enable"
TRACE_PATH=$(mktemp -d)

source $TESTDIR/utils.sh

print_test_banner "$TEST_DESC"

function enable_ust_lttng_event_filter_unsupported
{
	sess_name=$1
	event_name=$2
	filter=$3

	echo -n "Enabling lttng event with filtering and unsupported operator "
	enable_cmd="$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event"
	$enable_cmd $event_name -s $sess_name -u --filter "$filter" 2> $ENABLE_EVENT_STDERR 1> /dev/null

	# Enable must fail
	if [ $? -eq 0 ]; then
		print_fail
		return 1
	else
		print_ok
		return 0
	fi
}

function test_unsupported_op
{
	test_op_str=$1
	test_op_tkn=$2

	echo ""
	echo -e "=== Testing filter expression with unsupported operator $test_op_str ($test_op_tkn)"

	# Create session
	create_lttng_session $SESSION_NAME $TRACE_PATH

	# Create filter
	if [ "$test_op_str" == "UNARY_BIN_NOT" ]; then
		TEST_FILTER="${test_op_tkn}1"
	else
		TEST_FILTER="intfield $test_op_tkn 1"
	fi

	# Apply filter
	enable_ust_lttng_event_filter_unsupported $SESSION_NAME $EVENT_NAME "$TEST_FILTER"

	# Test stderr for unsupported operator
	echo -n "Unsupported operator test $test_op_str ($test_op_tkn) "
	grep -i -q "not[[:space:]]\+supported" $ENABLE_EVENT_STDERR

	if [ $? -eq 1 ]; then
		print_fail
		return 1
	else
		print_ok
	fi

	# Destroy session
	destroy_lttng_session $SESSION_NAME
	return 0
}

# Unsupported operators
OP_STR=("MUL" "DIV" "MOD" "PLUS" "MINUS" "LSHIFT" "RSHIFT"
	"BIN_AND" "BIN_OR" "BIN_XOR" "UNARY_BIN_NOT")

OP_TKN=("*" "/" "%" "+" "-" "<<" ">>" "&" "|" "^" "~")

OP_COUNT=${#OP_STR[@]}
i=0

start_lttng_sessiond

while [ "$i" -lt "$OP_COUNT" ]; do
	test_unsupported_op "${OP_STR[$i]}" "${OP_TKN[$i]}"

	if [ $? -eq 1 ]; then
		exit 1
	fi

	let "i++"
done

stop_lttng_sessiond

# Cleanup
rm -f $ENABLE_EVENT_STDERR
rm -rf $TRACE_PATH