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extend test coverage for latest pack corruption resilience improvements

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Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nicolas Pitre 2008-10-29 19:02:51 -04:00 committed by Junio C Hamano
parent 64bd76b1de
commit 538cf6b6e5
1 changed files with 89 additions and 7 deletions
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96
t/t5303-pack-corruption-resilience.sh
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@ -41,11 +41,17 @@ create_new_pack() {
git verify-pack -v ${pack}.pack git verify-pack -v ${pack}.pack
} }
do_repack() {
pack=`printf "$blob_1\n$blob_2\n$blob_3\n" |
git pack-objects $@ .git/objects/pack/pack` &&
pack=".git/objects/pack/pack-${pack}"
}
do_corrupt_object() { do_corrupt_object() {
ofs=`git show-index < ${pack}.idx | grep $1 | cut -f1 -d" "` && ofs=`git show-index < ${pack}.idx | grep $1 | cut -f1 -d" "` &&
ofs=$(($ofs + $2)) && ofs=$(($ofs + $2)) &&
chmod +w ${pack}.pack && chmod +w ${pack}.pack &&
dd if=/dev/zero of=${pack}.pack count=1 bs=1 conv=notrunc seek=$ofs && dd of=${pack}.pack count=1 bs=1 conv=notrunc seek=$ofs &&
test_must_fail git verify-pack ${pack}.pack test_must_fail git verify-pack ${pack}.pack
} }
@ -60,7 +66,7 @@ test_expect_success \
test_expect_success \ test_expect_success \
'create corruption in header of first object' \ 'create corruption in header of first object' \
'do_corrupt_object $blob_1 0 && 'do_corrupt_object $blob_1 0 < /dev/zero &&
test_must_fail git cat-file blob $blob_1 > /dev/null && test_must_fail git cat-file blob $blob_1 > /dev/null &&
test_must_fail git cat-file blob $blob_2 > /dev/null && test_must_fail git cat-file blob $blob_2 > /dev/null &&
test_must_fail git cat-file blob $blob_3 > /dev/null' test_must_fail git cat-file blob $blob_3 > /dev/null'
@ -119,7 +125,7 @@ test_expect_success \
'create corruption in header of first delta' \ 'create corruption in header of first delta' \
'create_new_pack && 'create_new_pack &&
git prune-packed && git prune-packed &&
do_corrupt_object $blob_2 0 && do_corrupt_object $blob_2 0 < /dev/zero &&
git cat-file blob $blob_1 > /dev/null && git cat-file blob $blob_1 > /dev/null &&
test_must_fail git cat-file blob $blob_2 > /dev/null && test_must_fail git cat-file blob $blob_2 > /dev/null &&
test_must_fail git cat-file blob $blob_3 > /dev/null' test_must_fail git cat-file blob $blob_3 > /dev/null'
@ -133,6 +139,15 @@ test_expect_success \
git cat-file blob $blob_2 > /dev/null && git cat-file blob $blob_2 > /dev/null &&
git cat-file blob $blob_3 > /dev/null' git cat-file blob $blob_3 > /dev/null'
test_expect_success \
'... and then a repack "clears" the corruption' \
'do_repack &&
git prune-packed &&
git verify-pack ${pack}.pack &&
git cat-file blob $blob_1 > /dev/null &&
git cat-file blob $blob_2 > /dev/null &&
git cat-file blob $blob_3 > /dev/null'
test_expect_success \ test_expect_success \
'create corruption in data of first delta' \ 'create corruption in data of first delta' \
'create_new_pack && 'create_new_pack &&
@ -152,11 +167,20 @@ test_expect_success \
git cat-file blob $blob_2 > /dev/null && git cat-file blob $blob_2 > /dev/null &&
git cat-file blob $blob_3 > /dev/null' git cat-file blob $blob_3 > /dev/null'
test_expect_success \
'... and then a repack "clears" the corruption' \
'do_repack &&
git prune-packed &&
git verify-pack ${pack}.pack &&
git cat-file blob $blob_1 > /dev/null &&
git cat-file blob $blob_2 > /dev/null &&
git cat-file blob $blob_3 > /dev/null'
test_expect_success \ test_expect_success \
'corruption in delta base reference of first delta (OBJ_REF_DELTA)' \ 'corruption in delta base reference of first delta (OBJ_REF_DELTA)' \
'create_new_pack && 'create_new_pack &&
git prune-packed && git prune-packed &&
do_corrupt_object $blob_2 2 && do_corrupt_object $blob_2 2 < /dev/zero &&
git cat-file blob $blob_1 > /dev/null && git cat-file blob $blob_1 > /dev/null &&
test_must_fail git cat-file blob $blob_2 > /dev/null && test_must_fail git cat-file blob $blob_2 > /dev/null &&
test_must_fail git cat-file blob $blob_3 > /dev/null' test_must_fail git cat-file blob $blob_3 > /dev/null'
@ -171,17 +195,75 @@ test_expect_success \
git cat-file blob $blob_3 > /dev/null' git cat-file blob $blob_3 > /dev/null'
test_expect_success \ test_expect_success \
'corruption in delta base reference of first delta (OBJ_OFS_DELTA)' \ '... and then a repack "clears" the corruption' \
'do_repack &&
git prune-packed &&
git verify-pack ${pack}.pack &&
git cat-file blob $blob_1 > /dev/null &&
git cat-file blob $blob_2 > /dev/null &&
git cat-file blob $blob_3 > /dev/null'
test_expect_success \
'corruption #0 in delta base reference of first delta (OBJ_OFS_DELTA)' \
'create_new_pack --delta-base-offset && 'create_new_pack --delta-base-offset &&
git prune-packed && git prune-packed &&
do_corrupt_object $blob_2 2 && do_corrupt_object $blob_2 2 < /dev/zero &&
git cat-file blob $blob_1 > /dev/null && git cat-file blob $blob_1 > /dev/null &&
test_must_fail git cat-file blob $blob_2 > /dev/null && test_must_fail git cat-file blob $blob_2 > /dev/null &&
test_must_fail git cat-file blob $blob_3 > /dev/null' test_must_fail git cat-file blob $blob_3 > /dev/null'
test_expect_success \ test_expect_success \
'... and a redundant pack allows for full recovery too' \ '... but having a loose copy allows for full recovery' \
'mv ${pack}.idx tmp && 'mv ${pack}.idx tmp &&
git hash-object -t blob -w file_2 &&
mv tmp ${pack}.idx &&
git cat-file blob $blob_1 > /dev/null &&
git cat-file blob $blob_2 > /dev/null &&
git cat-file blob $blob_3 > /dev/null'
test_expect_success \
'... and then a repack "clears" the corruption' \
'do_repack --delta-base-offset &&
git prune-packed &&
git verify-pack ${pack}.pack &&
git cat-file blob $blob_1 > /dev/null &&
git cat-file blob $blob_2 > /dev/null &&
git cat-file blob $blob_3 > /dev/null'
test_expect_success \
'corruption #1 in delta base reference of first delta (OBJ_OFS_DELTA)' \
'create_new_pack --delta-base-offset &&
git prune-packed &&
printf "\x01" | do_corrupt_object $blob_2 2 &&
git cat-file blob $blob_1 > /dev/null &&
test_must_fail git cat-file blob $blob_2 > /dev/null &&
test_must_fail git cat-file blob $blob_3 > /dev/null'
test_expect_success \
'... but having a loose copy allows for full recovery' \
'mv ${pack}.idx tmp &&
git hash-object -t blob -w file_2 &&
mv tmp ${pack}.idx &&
git cat-file blob $blob_1 > /dev/null &&
git cat-file blob $blob_2 > /dev/null &&
git cat-file blob $blob_3 > /dev/null'
test_expect_success \
'... and then a repack "clears" the corruption' \
'do_repack --delta-base-offset &&
git prune-packed &&
git verify-pack ${pack}.pack &&
git cat-file blob $blob_1 > /dev/null &&
git cat-file blob $blob_2 > /dev/null &&
git cat-file blob $blob_3 > /dev/null'
test_expect_success \
'... and a redundant pack allows for full recovery too' \
'do_corrupt_object $blob_2 2 < /dev/zero &&
git cat-file blob $blob_1 > /dev/null &&
test_must_fail git cat-file blob $blob_2 > /dev/null &&
test_must_fail git cat-file blob $blob_3 > /dev/null &&
mv ${pack}.idx tmp &&
git hash-object -t blob -w file_1 && git hash-object -t blob -w file_1 &&
git hash-object -t blob -w file_2 && git hash-object -t blob -w file_2 &&
printf "$blob_1\n$blob_2\n" | git pack-objects .git/objects/pack/pack && printf "$blob_1\n$blob_2\n" | git pack-objects .git/objects/pack/pack &&