git/t/t3211-peel-ref.sh

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#!/bin/sh
test_description='tests for the peel_ref optimization of packed-refs'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success 'create annotated tag in refs/tags' '
test_commit base &&
git tag -m annotated foo
'
test_expect_success 'create annotated tag outside of refs/tags' '
git update-ref refs/outside/foo refs/tags/foo
'
# This matches show-ref's output
print_ref() {
echo "$(git rev-parse "$1") $1"
}
test_expect_success 'set up expected show-ref output' '
{
print_ref "refs/heads/main" &&
print_ref "refs/outside/foo" &&
print_ref "refs/outside/foo^{}" &&
print_ref "refs/tags/base" &&
print_ref "refs/tags/foo" &&
print_ref "refs/tags/foo^{}"
} >expect
'
test_expect_success 'refs are peeled outside of refs/tags (loose)' '
git show-ref -d >actual &&
test_cmp expect actual
'
test_expect_success 'refs are peeled outside of refs/tags (packed)' '
git pack-refs --all &&
git show-ref -d >actual &&
test_cmp expect actual
'
test_expect_success 'create old-style pack-refs without fully-peeled' '
# Git no longer writes without fully-peeled, so we just write our own
# from scratch; we could also munge the existing file to remove the
# fully-peeled bits, but that seems even more prone to failure,
# especially if the format ever changes again. At least this way we
# know we are emulating exactly what an older git would have written.
{
echo "# pack-refs with: peeled " &&
print_ref "refs/heads/main" &&
print_ref "refs/outside/foo" &&
print_ref "refs/tags/base" &&
print_ref "refs/tags/foo" &&
echo "^$(git rev-parse "refs/tags/foo^{}")"
} >tmp &&
mv tmp .git/packed-refs
'
test_expect_success 'refs are peeled outside of refs/tags (old packed)' '
git show-ref -d >actual &&
test_cmp expect actual
'
test_expect_success 'peeled refs survive deletion of packed ref' '
git pack-refs --all &&
cp .git/packed-refs fully-peeled &&
git branch yadda &&
git pack-refs --all &&
git branch -d yadda &&
test_cmp fully-peeled .git/packed-refs
'
test_done