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Diffstat (limited to 't/t1450-fsck.sh')
| -rwxr-xr-x | t/t1450-fsck.sh | 71 |
1 files changed, 70 insertions, 1 deletions
diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh index 33a51c9a67..cb4b66e29d 100755 --- a/t/t1450-fsck.sh +++ b/t/t1450-fsck.sh @@ -222,6 +222,28 @@ test_expect_success 'unparseable tree object' ' test_i18ngrep ! "fatal: empty filename in tree entry" out ' +hex2oct() { + perl -ne 'printf "\\%03o", hex for /../g' +} + +test_expect_success 'tree entry with type mismatch' ' + test_when_finished "remove_object \$blob" && + test_when_finished "remove_object \$tree" && + test_when_finished "remove_object \$commit" && + test_when_finished "git update-ref -d refs/heads/type_mismatch" && + blob=$(echo blob | git hash-object -w --stdin) && + blob_bin=$(echo $blob | hex2oct) && + tree=$( + printf "40000 dir\0${blob_bin}100644 file\0${blob_bin}" | + git hash-object -t tree --stdin -w --literally + ) && + commit=$(git commit-tree $tree) && + git update-ref refs/heads/type_mismatch $commit && + test_must_fail git fsck >out 2>&1 && + test_i18ngrep "is a blob, not a tree" out && + test_i18ngrep ! "dangling blob" out +' + test_expect_success 'tag pointing to nonexistent' ' cat >invalid-tag <<-\EOF && object ffffffffffffffffffffffffffffffffffffffff @@ -573,7 +595,7 @@ test_expect_success 'fsck --name-objects' ' remove_object $(git rev-parse julius:caesar.t) && test_must_fail git fsck --name-objects >out && tree=$(git rev-parse --verify julius:) && - grep "$tree (\(refs/heads/master\|HEAD\)@{[0-9]*}:" out + egrep "$tree \((refs/heads/master|HEAD)@\{[0-9]*\}:" out ) ' @@ -608,6 +630,22 @@ test_expect_success 'fsck errors in packed objects' ' ! grep corrupt out ' +test_expect_success 'fsck fails on corrupt packfile' ' + hsh=$(git commit-tree -m mycommit HEAD^{tree}) && + pack=$(echo $hsh | git pack-objects .git/objects/pack/pack) && + + # Corrupt the first byte of the first object. (It contains 3 type bits, + # at least one of which is not zero, so setting the first byte to 0 is + # sufficient.) + chmod a+w .git/objects/pack/pack-$pack.pack && + printf '\0' | dd of=.git/objects/pack/pack-$pack.pack bs=1 conv=notrunc seek=12 && + + test_when_finished "rm -f .git/objects/pack/pack-$pack.*" && + remove_object $hsh && + test_must_fail git fsck 2>out && + test_i18ngrep "checksum mismatch" out +' + test_expect_success 'fsck finds problems in duplicate loose objects' ' rm -rf broken-duplicate && git init broken-duplicate && @@ -689,4 +727,35 @@ test_expect_success 'bogus head does not fallback to all heads' ' ! grep $blob out ' +# Corrupt the checksum on the index. +# Add 1 to the last byte in the SHA. +corrupt_index_checksum () { + perl -w -e ' + use Fcntl ":seek"; + open my $fh, "+<", ".git/index" or die "open: $!"; + binmode $fh; + seek $fh, -1, SEEK_END or die "seek: $!"; + read $fh, my $in_byte, 1 or die "read: $!"; + + $in_value = unpack("C", $in_byte); + $out_value = ($in_value + 1) & 255; + + $out_byte = pack("C", $out_value); + + seek $fh, -1, SEEK_END or die "seek: $!"; + print $fh $out_byte; + close $fh or die "close: $!"; + ' +} + +# Corrupt the checksum on the index and then +# verify that only fsck notices. +test_expect_success 'detect corrupt index file in fsck' ' + cp .git/index .git/index.backup && + test_when_finished "mv .git/index.backup .git/index" && + corrupt_index_checksum && + test_must_fail git fsck --cache 2>errors && + grep "bad index file" errors +' + test_done |