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git/t/t5613-info-alternate.sh
Ævar Arnfjörð Bjarmason b2e5d75d17 tests: mark tests as passing with SANITIZE=leak
When the "ab/various-leak-fixes" topic was merged in [1] only t6021
would fail if the tests were run in the
"GIT_TEST_PASSING_SANITIZE_LEAK=check" mode, i.e. to check whether we
marked all leak-free tests with "TEST_PASSES_SANITIZE_LEAK=true".

Since then we've had various tests starting to pass under
SANITIZE=leak. Let's mark those as passing, this is when they started
to pass, narrowed down with "git bisect":

- t5317-pack-objects-filter-objects.sh: In
  faebba436e (list-objects-filter: plug pattern_list leak, 2022-12-01).

- t3210-pack-refs.sh, t5613-info-alternate.sh,
  t7403-submodule-sync.sh: In 189e97bc4b (diff: remove parseopts member
  from struct diff_options, 2022-12-01).

- t1408-packed-refs.sh: In ab91f6b7c4 (Merge branch
  'rs/diff-parseopts', 2022-12-19).

- t0023-crlf-am.sh, t4152-am-subjects.sh, t4254-am-corrupt.sh,
  t4256-am-format-flowed.sh, t4257-am-interactive.sh,
  t5403-post-checkout-hook.sh: In a658e881c1 (am: don't pass strvec to
  apply_parse_options(), 2022-12-13)

- t1301-shared-repo.sh, t1302-repo-version.sh: In b07a819c05 (reflog:
  clear leftovers in reflog_expiry_cleanup(), 2022-12-13).

- t1304-default-acl.sh, t1410-reflog.sh,
  t5330-no-lazy-fetch-with-commit-graph.sh, t5502-quickfetch.sh,
  t5604-clone-reference.sh, t6014-rev-list-all.sh,
  t7701-repack-unpack-unreachable.sh: In b0c61be320 (Merge branch
  'rs/reflog-expiry-cleanup', 2022-12-26)

- t3800-mktag.sh, t5302-pack-index.sh, t5306-pack-nobase.sh,
  t5573-pull-verify-signatures.sh, t7612-merge-verify-signatures.sh: In
  69bbbe484b (hash-object: use fsck for object checks, 2023-01-18).

- t1451-fsck-buffer.sh: In 8e4309038f (fsck: do not assume
  NUL-termination of buffers, 2023-01-19).

- t6501-freshen-objects.sh: In abf2bb895b (Merge branch
  'jk/hash-object-fsck', 2023-01-30)

1. 9ea1378d04 (Merge branch 'ab/various-leak-fixes', 2022-12-14)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:36 -08:00

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#!/bin/sh
#
# Copyright (C) 2006 Martin Waitz <tali@admingilde.org>
#
test_description='test transitive info/alternate entries'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success 'preparing first repository' '
test_create_repo A && (
cd A &&
echo "Hello World" > file1 &&
git add file1 &&
git commit -m "Initial commit" file1 &&
git repack -a -d &&
git prune
)
'
test_expect_success 'preparing second repository' '
git clone -l -s A B && (
cd B &&
echo "foo bar" > file2 &&
git add file2 &&
git commit -m "next commit" file2 &&
git repack -a -d -l &&
git prune
)
'
test_expect_success 'preparing third repository' '
git clone -l -s B C && (
cd C &&
echo "Goodbye, cruel world" > file3 &&
git add file3 &&
git commit -m "one more" file3 &&
git repack -a -d -l &&
git prune
)
'
test_expect_success 'count-objects shows the alternates' '
cat >expect <<-EOF &&
alternate: $(pwd)/B/.git/objects
alternate: $(pwd)/A/.git/objects
EOF
git -C C count-objects -v >actual &&
grep ^alternate: actual >actual.alternates &&
test_cmp expect actual.alternates
'
# Note: These tests depend on the hard-coded value of 5 as the maximum depth
# we will follow recursion. We start the depth at 0 and count links, not
# repositories. This means that in a chain like:
#
# A --> B --> C --> D --> E --> F --> G --> H
# 0 1 2 3 4 5 6
#
# we are OK at "G", but break at "H", even though "H" is actually the 8th
# repository, not the 6th, which you might expect. Counting the links allows
# N+1 repositories, and counting from 0 to 5 inclusive allows 6 links.
#
# Note also that we must use "--bare -l" to make the link to H. The "-l"
# ensures we do not do a connectivity check, and the "--bare" makes sure
# we do not try to checkout the result (which needs objects), either of
# which would cause the clone to fail.
test_expect_success 'creating too deep nesting' '
git clone -l -s C D &&
git clone -l -s D E &&
git clone -l -s E F &&
git clone -l -s F G &&
git clone --bare -l -s G H
'
test_expect_success 'validity of seventh repository' '
git -C G fsck
'
test_expect_success 'invalidity of eighth repository' '
test_must_fail git -C H fsck
'
test_expect_success 'breaking of loops' '
echo "$(pwd)"/B/.git/objects >>A/.git/objects/info/alternates &&
git -C C fsck
'
test_expect_success 'that info/alternates is necessary' '
rm -f C/.git/objects/info/alternates &&
test_must_fail git -C C fsck
'
test_expect_success 'that relative alternate is possible for current dir' '
echo "../../../B/.git/objects" >C/.git/objects/info/alternates &&
git fsck
'
test_expect_success 'that relative alternate is recursive' '
git -C D fsck
'
# we can reach "A" from our new repo both directly, and via "C".
# The deep/subdir is there to make sure we are not doing a stupid
# pure-text comparison of the alternate names.
test_expect_success 'relative duplicates are eliminated' '
mkdir -p deep/subdir &&
git init --bare deep/subdir/duplicate.git &&
cat >deep/subdir/duplicate.git/objects/info/alternates <<-\EOF &&
../../../../C/.git/objects
../../../../A/.git/objects
EOF
cat >expect <<-EOF &&
alternate: $(pwd)/C/.git/objects
alternate: $(pwd)/B/.git/objects
alternate: $(pwd)/A/.git/objects
EOF
git -C deep/subdir/duplicate.git count-objects -v >actual &&
grep ^alternate: actual >actual.alternates &&
test_cmp expect actual.alternates
'
test_expect_success CASE_INSENSITIVE_FS 'dup finding can be case-insensitive' '
git init --bare insensitive.git &&
# the previous entry for "A" will have used uppercase
cat >insensitive.git/objects/info/alternates <<-\EOF &&
../../C/.git/objects
../../a/.git/objects
EOF
cat >expect <<-EOF &&
alternate: $(pwd)/C/.git/objects
alternate: $(pwd)/B/.git/objects
alternate: $(pwd)/A/.git/objects
EOF
git -C insensitive.git count-objects -v >actual &&
grep ^alternate: actual >actual.alternates &&
test_cmp expect actual.alternates
'
test_done