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Diffstat (limited to 't/t5302-pack-index.sh')
| -rwxr-xr-x | t/t5302-pack-index.sh | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/t/t5302-pack-index.sh b/t/t5302-pack-index.sh new file mode 100755 index 0000000000..2a2878b572 --- /dev/null +++ b/t/t5302-pack-index.sh @@ -0,0 +1,165 @@ +#!/bin/sh +# +# Copyright (c) 2007 Nicolas Pitre +# + +test_description='pack index with 64-bit offsets and object CRC' +. ./test-lib.sh + +test_expect_success \ + 'setup' \ + 'rm -rf .git + git init && + i=1 && + while test $i -le 100 + do + i=`printf '%03i' $i` + echo $i >file_$i && + test-genrandom "$i" 8192 >>file_$i && + git update-index --add file_$i && + i=`expr $i + 1` || return 1 + done && + { echo 101 && test-genrandom 100 8192; } >file_101 && + git update-index --add file_101 && + tree=`git write-tree` && + commit=`git commit-tree $tree </dev/null` && { + echo $tree && + git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/" + } >obj-list && + git update-ref HEAD $commit' + +test_expect_success \ + 'pack-objects with index version 1' \ + 'pack1=$(git pack-objects --index-version=1 test-1 <obj-list) && + git verify-pack -v "test-1-${pack1}.pack"' + +test_expect_success \ + 'pack-objects with index version 2' \ + 'pack2=$(git pack-objects --index-version=2 test-2 <obj-list) && + git verify-pack -v "test-2-${pack2}.pack"' + +test_expect_success \ + 'both packs should be identical' \ + 'cmp "test-1-${pack1}.pack" "test-2-${pack2}.pack"' + +test_expect_failure \ + 'index v1 and index v2 should be different' \ + 'cmp "test-1-${pack1}.idx" "test-2-${pack2}.idx"' + +test_expect_success \ + 'index-pack with index version 1' \ + 'git-index-pack --index-version=1 -o 1.idx "test-1-${pack1}.pack"' + +test_expect_success \ + 'index-pack with index version 2' \ + 'git-index-pack --index-version=2 -o 2.idx "test-1-${pack1}.pack"' + +test_expect_success \ + 'index-pack results should match pack-objects ones' \ + 'cmp "test-1-${pack1}.idx" "1.idx" && + cmp "test-2-${pack2}.idx" "2.idx"' + +test_expect_success \ + 'index v2: force some 64-bit offsets with pack-objects' \ + 'pack3=$(git pack-objects --index-version=2,0x40000 test-3 <obj-list)' + +have_64bits= +if msg=$(git verify-pack -v "test-3-${pack3}.pack" 2>&1) || + ! echo "$msg" | grep "pack too large .* off_t" +then + have_64bits=t +else + say "skipping tests concerning 64-bit offsets" +fi + +test "$have_64bits" && +test_expect_success \ + 'index v2: verify a pack with some 64-bit offsets' \ + 'git verify-pack -v "test-3-${pack3}.pack"' + +test "$have_64bits" && +test_expect_failure \ + '64-bit offsets: should be different from previous index v2 results' \ + 'cmp "test-2-${pack2}.idx" "test-3-${pack3}.idx"' + +test "$have_64bits" && +test_expect_success \ + 'index v2: force some 64-bit offsets with index-pack' \ + 'git-index-pack --index-version=2,0x40000 -o 3.idx "test-1-${pack1}.pack"' + +test "$have_64bits" && +test_expect_success \ + '64-bit offsets: index-pack result should match pack-objects one' \ + 'cmp "test-3-${pack3}.idx" "3.idx"' + +test_expect_success \ + '[index v1] 1) stream pack to repository' \ + 'git-index-pack --index-version=1 --stdin < "test-1-${pack1}.pack" && + git prune-packed && + git count-objects | ( read nr rest && test "$nr" -eq 1 ) && + cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" && + cmp "test-1-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"' + +test_expect_success \ + '[index v1] 2) create a stealth corruption in a delta base reference' \ + '# this test assumes a delta smaller than 16 bytes at the end of the pack + git show-index <1.idx | sort -n | tail -n 1 | ( + read delta_offs delta_sha1 && + git cat-file blob "$delta_sha1" > blob_1 && + chmod +w ".git/objects/pack/pack-${pack1}.pack" && + dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \ + if=".git/objects/pack/pack-${pack1}.idx" skip=$((256 * 4 + 4)) \ + bs=1 count=20 conv=notrunc && + git cat-file blob "$delta_sha1" > blob_2 )' + +test_expect_failure \ + '[index v1] 3) corrupted delta happily returned wrong data' \ + 'cmp blob_1 blob_2' + +test_expect_failure \ + '[index v1] 4) confirm that the pack is actually corrupted' \ + 'git fsck --full $commit' + +test_expect_success \ + '[index v1] 5) pack-objects happily reuses corrupted data' \ + 'pack4=$(git pack-objects test-4 <obj-list) && + test -f "test-4-${pack1}.pack"' + +test_expect_failure \ + '[index v1] 6) newly created pack is BAD !' \ + 'git verify-pack -v "test-4-${pack1}.pack"' + +test_expect_success \ + '[index v2] 1) stream pack to repository' \ + 'rm -f .git/objects/pack/* && + git-index-pack --index-version=2 --stdin < "test-1-${pack1}.pack" && + git prune-packed && + git count-objects | ( read nr rest && test "$nr" -eq 1 ) && + cmp "test-1-${pack1}.pack" ".git/objects/pack/pack-${pack1}.pack" && + cmp "test-2-${pack1}.idx" ".git/objects/pack/pack-${pack1}.idx"' + +test_expect_success \ + '[index v2] 2) create a stealth corruption in a delta base reference' \ + '# this test assumes a delta smaller than 16 bytes at the end of the pack + git show-index <1.idx | sort -n | tail -n 1 | ( + read delta_offs delta_sha1 delta_crc && + git cat-file blob "$delta_sha1" > blob_3 && + chmod +w ".git/objects/pack/pack-${pack1}.pack" && + dd of=".git/objects/pack/pack-${pack1}.pack" seek=$(($delta_offs + 1)) \ + if=".git/objects/pack/pack-${pack1}.idx" skip=$((8 + 256 * 4)) \ + bs=1 count=20 conv=notrunc && + git cat-file blob "$delta_sha1" > blob_4 )' + +test_expect_failure \ + '[index v2] 3) corrupted delta happily returned wrong data' \ + 'cmp blob_3 blob_4' + +test_expect_failure \ + '[index v2] 4) confirm that the pack is actually corrupted' \ + 'git fsck --full $commit' + +test_expect_failure \ + '[index v2] 5) pack-objects refuses to reuse corrupted data' \ + 'git pack-objects test-5 <obj-list' + +test_done |