From 538cf6b6e5f663eea9b777ef12ae58eb0c919480 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Wed, 29 Oct 2008 19:02:51 -0400 Subject: [PATCH] extend test coverage for latest pack corruption resilience improvements Signed-off-by: Nicolas Pitre Signed-off-by: Junio C Hamano --- t/t5303-pack-corruption-resilience.sh | 96 +++++++++++++++++++++++++-- 1 file changed, 89 insertions(+), 7 deletions(-) diff --git a/t/t5303-pack-corruption-resilience.sh b/t/t5303-pack-corruption-resilience.sh index 31b20b21d..ac181ea38 100755 --- a/t/t5303-pack-corruption-resilience.sh +++ b/t/t5303-pack-corruption-resilience.sh @@ -41,11 +41,17 @@ create_new_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() { ofs=`git show-index < ${pack}.idx | grep $1 | cut -f1 -d" "` && ofs=$(($ofs + $2)) && 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 } @@ -60,7 +66,7 @@ test_expect_success \ test_expect_success \ '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_2 > /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_new_pack && 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 && test_must_fail git cat-file blob $blob_2 > /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_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 \ 'create corruption in data of first delta' \ 'create_new_pack && @@ -152,11 +167,20 @@ test_expect_success \ 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 && + 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 in delta base reference of first delta (OBJ_REF_DELTA)' \ 'create_new_pack && 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 && test_must_fail git cat-file blob $blob_2 > /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' 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 && 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 && 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 \ - '... and a redundant pack allows for full recovery too' \ + '... 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 \ + '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 ${pack}.idx tmp && git hash-object -t blob -w file_1 && git hash-object -t blob -w file_2 && printf "$blob_1\n$blob_2\n" | git pack-objects .git/objects/pack/pack && -- 2.26.2