t7519: rewrite sparse index test

The sparse index is tested with the FS Monitor hook and extension since
f8fe49e (fsmonitor: integrate with sparse index, 2021-07-14). This test
was very fragile because it shared an index across sparse and non-sparse
behavior. Since that expansion and contraction could cause the index to
lose its FS Monitor bitmap and token, behavior is fragile to changes in
'git sparse-checkout set'.

Rewrite the test to use two clones of the original repo: full and
sparse. This allows us to also keep the test files (actual, expect,
trace2.txt) out of the repos we are testing with 'git status'.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee 2021-09-08 01:42:25 +00:00 committed by Junio C Hamano
parent 716f68ec33
commit 522d3cec00

View file

@ -389,43 +389,47 @@ test_expect_success 'status succeeds after staging/unstaging' '
# If "!" is supplied, then we verify that we do not call ensure_full_index
# during a call to 'git status'. Otherwise, we verify that we _do_ call it.
check_sparse_index_behavior () {
git status --porcelain=v2 >expect &&
git sparse-checkout init --cone --sparse-index &&
git sparse-checkout set dir1 dir2 &&
git -C full status --porcelain=v2 >expect &&
GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
git status --porcelain=v2 >actual &&
git -C sparse status --porcelain=v2 >actual &&
test_region $1 index ensure_full_index trace2.txt &&
test_region fsm_hook query trace2.txt &&
test_cmp expect actual &&
rm trace2.txt &&
git sparse-checkout disable
rm trace2.txt
}
test_expect_success 'status succeeds with sparse index' '
git reset --hard &&
git clone . full &&
git clone --sparse . sparse &&
git -C sparse sparse-checkout init --cone --sparse-index &&
git -C sparse sparse-checkout set dir1 dir2 &&
test_config core.fsmonitor "$TEST_DIRECTORY/t7519/fsmonitor-all" &&
check_sparse_index_behavior ! &&
write_script .git/hooks/fsmonitor-test<<-\EOF &&
write_script .git/hooks/fsmonitor-test <<-\EOF &&
printf "last_update_token\0"
EOF
git config core.fsmonitor .git/hooks/fsmonitor-test &&
git -C full config core.fsmonitor ../.git/hooks/fsmonitor-test &&
git -C sparse config core.fsmonitor ../.git/hooks/fsmonitor-test &&
check_sparse_index_behavior ! &&
write_script .git/hooks/fsmonitor-test<<-\EOF &&
write_script .git/hooks/fsmonitor-test <<-\EOF &&
printf "last_update_token\0"
printf "dir1/modified\0"
EOF
check_sparse_index_behavior ! &&
cp -r dir1 dir1a &&
git add dir1a &&
git commit -m "add dir1a" &&
git -C sparse sparse-checkout add dir1a &&
for repo in full sparse
do
cp -r $repo/dir1 $repo/dir1a &&
git -C $repo add dir1a &&
git -C $repo commit -m "add dir1a" || return 1
done &&
git -C sparse sparse-checkout set dir1 dir2 &&
# This one modifies outside the sparse-checkout definition
# and hence we expect to expand the sparse-index.
write_script .git/hooks/fsmonitor-test<<-\EOF &&
write_script .git/hooks/fsmonitor-test <<-\EOF &&
printf "last_update_token\0"
printf "dir1a/modified\0"
EOF