1#!/bin/bash 2 3[ -f testing.sh ] && . testing.sh 4 5 6#testing "name" "command" "result" "infile" "stdin" 7 8# Default behavior on stdin and on files. 9testing "on stdin" "echo -n hello | cksum" "3287646509 5\n" "" "" 10echo -n "hello" > tmpfile 11testing "on file" "cksum tmpfile" "3287646509 5 tmpfile\n" "" "" 12rm -f tmpfile 13touch one two 14testing "on multiple files" "cksum one two" "4294967295 0 one\n4294967295 0 two\n" "" "" 15rm -f one two 16 17# Check the length suppression, both calculate the CRC on 'abc' but the second 18# option has length suppression on and has the length concatenated to 'abc'. 19testing "on abc including length" "cksum" "1219131554 3\n" "" 'abc' 20testing "on abc excluding length" "cksum -N" "1219131554\n" "" 'abc\x3' 21 22# cksum on no contents gives 0xffffffff (=4294967295) 23testing "on no data post-inversion" "echo -n "" | cksum" "4294967295 0\n" "" "" 24# If we do preinversion we will then get 0. 25testing "on no data pre+post-inversion" "echo -n "" | cksum -P" "0 0\n" "" "" 26# If we skip the post-inversion we also get 0 27testing "on no data no inversion" "echo -n "" | cksum -I" "0 0\n" "" "" 28# Two wrongs make a right. 29testing "on no data pre-inversion" "echo -n "" | cksum -PI" "4294967295 0\n" "" "" 30