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t/t5332-multi-pack-reuse.sh: verify pack generation with --strict

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In our tests for multi-pack reuse, we have two helper functions:

  - test_pack_objects_reused_all(), and
  - test_pack_objects_reused()

which invoke pack-objects (either with `--all`, or the supplied tips via
stdin, respectively) and ensure that (a) the number of reused objects,
and (b) the number of packs which those objects were reused from both
match the expected values.

Both functions discard the output of pack-objects and assert only on the
contents of the trace2 stream.

However, if we store the pack and attempt to index it with `--strict`,
we find that a number of our tests are broken, indicating a bug within
multi-pack reuse.

That bug will be addressed in a subsequent commit. But let's first
harden these tests by trying to index the resulting pack, marking the
tests which fail appropriately.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Taylor Blau 2024-08-27 17:13:27 -04:00 committed by Junio C Hamano
parent 159f2d50e7
commit bbc393a9f3
1 changed files with 12 additions and 8 deletions
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20
t/t5332-multi-pack-reuse.sh
View file

@ -31,20 +31,24 @@ test_pack_objects_reused_all () {
: >trace2.txt &&
GIT_TRACE2_EVENT="$PWD/trace2.txt" \
git pack-objects --stdout --revs --all --delta-base-offset \
>/dev/null &&
>got.pack &&
test_pack_reused "$1" <trace2.txt &&
test_packs_reused "$2" <trace2.txt
test_packs_reused "$2" <trace2.txt &&
git index-pack --strict -o got.idx got.pack
}
# test_pack_objects_reused <pack-reused> <packs-reused>
test_pack_objects_reused () {
: >trace2.txt &&
GIT_TRACE2_EVENT="$PWD/trace2.txt" \
git pack-objects --stdout --revs >/dev/null &&
git pack-objects --stdout --revs >got.pack &&
test_pack_reused "$1" <trace2.txt &&
test_packs_reused "$2" <trace2.txt
test_packs_reused "$2" <trace2.txt &&
git index-pack --strict -o got.idx got.pack
}
test_expect_success 'preferred pack is reused for single-pack reuse' '
@ -65,7 +69,7 @@ test_expect_success 'multi-pack reuse is disabled by default' '
test_pack_objects_reused_all 3 1
'
test_expect_success 'feature.experimental implies multi-pack reuse' '
test_expect_failure 'feature.experimental implies multi-pack reuse' '
test_config feature.experimental true &&
test_pack_objects_reused_all 6 2
@ -82,7 +86,7 @@ test_expect_success 'enable multi-pack reuse' '
git config pack.allowPackReuse multi
'
test_expect_success 'reuse all objects from subset of bitmapped packs' '
test_expect_failure 'reuse all objects from subset of bitmapped packs' '
test_commit C &&
git repack -d &&
@ -96,7 +100,7 @@ test_expect_success 'reuse all objects from subset of bitmapped packs' '
test_pack_objects_reused 6 2 <in
'
test_expect_success 'reuse all objects from all packs' '
test_expect_failure 'reuse all objects from all packs' '
test_pack_objects_reused_all 9 3
'
@ -190,7 +194,7 @@ test_expect_success 'omit delta with uninteresting base (same pack)' '
test_pack_objects_reused 3 1 <in
'
test_expect_success 'omit delta from uninteresting base (cross pack)' '
test_expect_failure 'omit delta from uninteresting base (cross pack)' '
cat >in <<-EOF &&
$(git rev-parse $base)
^$(git rev-parse $delta)