#!/bin/bash

# test adding elements to an interval map
# shows how disjoint intervals are seen as overlaps
# NOTE this is only an issue with two separate nft calls

tmpfile=$(mktemp)
if [ ! -w $tmpfile ] ; then
	echo "Failed to create tmp file" >&2
	exit 0
fi

trap "rm -rf $tmpfile" EXIT # cleanup if aborted

n=1
echo "add table x
add map x y { type ipv4_addr : ipv4_addr; flags interval; }
add element x y { 10.0.${n}.0/24 : 10.0.0.${n} }" > $tmpfile

set -e
$NFT -f $tmpfile

n=2
echo "add element x y { 10.0.${n}.0/24 : 10.0.0.${n} }" > $tmpfile

$NFT -f $tmpfile

EXPECTED="table ip x {
	map y {
		type ipv4_addr : ipv4_addr
		flags interval
		elements = { 10.0.1.0/24 : 10.0.0.1, 10.0.2.0/24 : 10.0.0.2 }
	}
}"
GET=$($NFT list ruleset)
if [ "$EXPECTED" != "$GET" ] ; then
	DIFF="$(which diff)"
	[ -x $DIFF ] && $DIFF -u <(echo "$EXPECTED") <(echo "$GET")
	exit 1
fi