btrfs-progs/tests/misc-tests/008-leaf-crossing-stripes/test.sh
David Sterba f6bbe06c08 btrfs-progs: tests: add protection against running out of test suite
Executing the script inside the directories as './test.sh' is not
supposed to work but could happen accidentally. With an exit after
attempting to source the we can fix that.

Signed-off-by: David Sterba <dsterba@suse.com>
2023-04-25 16:59:41 +02:00

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#!/bin/bash
# test if btrfs-convert creates a filesystem without leaf crossing stripes
source "$TEST_TOP/common" || exit
check_prereq btrfs-convert
check_prereq btrfs
# In my test, it happened in 514M~560M, 737M~769M, 929M~917M,
# and HAVE_ERROR=((size + 1) / 2) % 2 if size >= 970
#
SIZE_FROM=514
SIZE_END=560
A_PRIME_NUM=17
for ((size = SIZE_FROM; size <= SIZE_END; size += A_PRIME_NUM)); do
run_check truncate -s "$size"M "$IMAGE"
run_check mkfs.ext4 -F "$IMAGE"
run_check "$TOP/btrfs-convert" "$IMAGE"
run_check_stdout "$TOP/btrfs" check "$IMAGE" 2>&1 |
grep -q "crossing stripe boundary" &&
_fail "leaf crossing stripes after btrfs-convert"
done
# grep will expectedly fail
exit 0