git cat-file blob $blob_2 > /dev/null &&
git cat-file blob $blob_3 > /dev/null'
+test_expect_success \
+ 'corruption of delta base reference pointing to wrong object' \
+ 'create_new_pack --delta-base-offset &&
+ git prune-packed &&
+ printf "\220\033" | do_corrupt_object $blob_3 2 &&
+ git cat-file blob $blob_1 >/dev/null &&
+ 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_3 &&
+ 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 --no-reuse-delta &&
+ 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 \
'corrupting header to have too small output buffer fails unpack' \
'create_new_pack &&