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. 9 testing "cksum on stdin" "echo -n hello | cksum" "3287646509 5\n" "" "" 10 echo -n "hello" > tmpfile 11 testing "cksum on file" "cksum tmpfile" "3287646509 5 tmpfile\n" "" "" 12 rm -f tmpfile 13 touch one two 14 testing "cksum on multiple files" "cksum one two" "4294967295 0 one\n4294967295 0 two\n" "" "" 15 rm -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'. 19 testing "cksum on abc including length" "echo -n 'abc' | cksum" "1219131554 3\n" "" "" 20 testing "cksum on abc excluding length" "echo -ne 'abc\x3' | cksum -N" "1219131554 4\n" "" "" 21 22 # cksum on no contents gives 0xffffffff (=4294967295) 23 testing "cksum on no data post-inversion" "echo -n "" | cksum" "4294967295 0\n" "" "" 24 # If we do preinversion we will then get 0. 25 testing "cksum on no data pre+post-inversion" "echo -n "" | cksum -P" "0 0\n" "" "" 26 # If we skip the post-inversion we also get 0 27 testing "cksum on no data no inversion" "echo -n "" | cksum -I" "0 0\n" "" "" 28 # Two wrongs make a right. 29 testing "cksum on no data pre-inversion" "echo -n "" | cksum -PI" "4294967295 0\n" "" "" 30
