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t1006: test cat-file --batch-all-objects with duplicates

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The test for --batch-all-objects in t1006 covers a variety
of object storage situations, but one thing it doesn't cover
is that we avoid mentioning duplicate objects. We won't have
any because running "git repack -ad" will have packed them
all and deleted the loose ones.

This does work (because we sort and de-dup the output list),
but it's good to include it in our test. And doubly so for
when we add an unordered mode which has to de-dup in a
different way.

Note that we cannot just re-create one of the objects, as
Git will omit the write of an object that is already
present. However, we can create a new pack with one of the
objects, which forces the duplication.

One alternative would be to just use "git repack -a" instead
of "-ad". But then _every_ object would be duplicated as
loose and packed, and we might miss a bug that omits packed
objects (because we'd show their loose counterparts).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2018-08-10 19:16:40 -04:00 committed by Junio C Hamano
parent 736eb88fdc
commit aa2f5ef500
1 changed files with 4 additions and 2 deletions
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6
t/t1006-cat-file.sh
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@ -550,8 +550,8 @@ test_expect_success 'git cat-file --batch --follow-symlink returns correct sha a
test_expect_success 'cat-file --batch-all-objects shows all objects' '
# make new repos so we know the full set of objects; we will
# also make sure that there are some packed and some loose
# objects, some referenced and some not, and that there are
# some available only via alternates.
# objects, some referenced and some not, some duplicates, and that
# there are some available only via alternates.
git init all-one &&
(
cd all-one &&
@ -567,6 +567,8 @@ test_expect_success 'cat-file --batch-all-objects shows all objects' '
cd all-two &&
echo local-unref | git hash-object -w --stdin
) >>expect.unsorted &&
git -C all-two rev-parse HEAD:file |
git -C all-two pack-objects .git/objects/pack/pack &&
sort <expect.unsorted >expect &&
git -C all-two cat-file --batch-all-objects \
--batch-check="%(objectname)" >actual &&