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tests: cksum: ensure --check handles I/O errors

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* tests/cksum/cksum-c.sh: Use strace to inject EIO upon read(),
and verify it's handled appropriately.
From https://github.com/coreutils/coreutils/pull/167
This commit is contained in:
oech3 2026-01-11 18:14:44 +00:00 committed by Pádraig Brady
parent 135dff3ad3
commit 3a9777bdb0
1 changed files with 18 additions and 0 deletions
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18
tests/cksum/cksum-c.sh
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@ -201,4 +201,22 @@ grep 'the --tag option is meaningless when verifying checksums' err || fail=1
# an emulation wrapper for legacy *sum utils.
cksum -a md5 /dev/null | cksum --untagged --check || fail=1
# Ensure I/O errors handled appropriately
if strace -o /dev/null -P path -e fault=read:error=EIO true; then
touch ok eio || framework_failure_
cksum -a md5 eio ok > check.md5 || fail=1
# Test one of the files being checked returns EIO
returns_ 1 strace -o /dev/null -P eio -e fault=read:error=EIO \
cksum --check check.md5 2>err >out || fail=1
printf '%s\n' 'eio: FAILED open or read' 'ok: OK' >exp || framework_failure_
compare exp out || fail=1
# Generate the expected error using cat:
strace -o /dev/null -P eio -e fault=read:error=EIO cat eio 2> exp.t
sed 's/cat/cksum/' < exp.t > exp && grep eio: exp && echo \
'cksum: WARNING: 1 listed file could not be read' >>exp || framework_failure_
compare exp err || fail=1
fi
Exit $fail