Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 192 insertions, 0 deletions

diff --git a/t/t1401-symbolic-ref.sh b/t/t1401-symbolic-ref.sh
new file mode 100755
index 0000000..d708acd
--- /dev/null
+++ b/t/t1401-symbolic-ref.sh
@@ -0,0 +1,192 @@
+#!/bin/sh
+
+test_description='basic symbolic-ref tests'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+# If the tests munging HEAD fail, they can break detection of
+# the git repo, meaning that further tests will operate on
+# the surrounding git repo instead of the trash directory.
+reset_to_sane() {
+	rm -rf .git &&
+	"$TAR" xf .git.tar
+}
+
+test_expect_success 'setup' '
+	git symbolic-ref HEAD refs/heads/foo &&
+	test_commit file &&
+	"$TAR" cf .git.tar .git/
+'
+
+test_expect_success 'symbolic-ref read/write roundtrip' '
+	git symbolic-ref HEAD refs/heads/read-write-roundtrip &&
+	echo refs/heads/read-write-roundtrip >expect &&
+	git symbolic-ref HEAD >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'symbolic-ref refuses non-ref for HEAD' '
+	test_must_fail git symbolic-ref HEAD foo
+'
+
+reset_to_sane
+
+test_expect_success 'symbolic-ref refuses bare sha1' '
+	test_must_fail git symbolic-ref HEAD $(git rev-parse HEAD)
+'
+
+reset_to_sane
+
+test_expect_success 'HEAD cannot be removed' '
+	test_must_fail git symbolic-ref -d HEAD
+'
+
+reset_to_sane
+
+test_expect_success 'symbolic-ref can be deleted' '
+	git symbolic-ref NOTHEAD refs/heads/foo &&
+	git symbolic-ref -d NOTHEAD &&
+	git rev-parse refs/heads/foo &&
+	test_must_fail git symbolic-ref NOTHEAD
+'
+reset_to_sane
+
+test_expect_success 'symbolic-ref can delete dangling symref' '
+	git symbolic-ref NOTHEAD refs/heads/missing &&
+	git symbolic-ref -d NOTHEAD &&
+	test_must_fail git rev-parse refs/heads/missing &&
+	test_must_fail git symbolic-ref NOTHEAD
+'
+reset_to_sane
+
+test_expect_success 'symbolic-ref fails to delete missing FOO' '
+	echo "fatal: Cannot delete FOO, not a symbolic ref" >expect &&
+	test_must_fail git symbolic-ref -d FOO >actual 2>&1 &&
+	test_cmp expect actual
+'
+reset_to_sane
+
+test_expect_success 'symbolic-ref fails to delete real ref' '
+	echo "fatal: Cannot delete refs/heads/foo, not a symbolic ref" >expect &&
+	test_must_fail git symbolic-ref -d refs/heads/foo >actual 2>&1 &&
+	git rev-parse --verify refs/heads/foo &&
+	test_cmp expect actual
+'
+reset_to_sane
+
+test_expect_success 'create large ref name' '
+	# make 256+ character ref; some systems may not handle that,
+	# so be gentle
+	long=0123456789abcdef &&
+	long=$long/$long/$long/$long &&
+	long=$long/$long/$long/$long &&
+	long_ref=refs/heads/$long &&
+	tree=$(git write-tree) &&
+	commit=$(echo foo | git commit-tree $tree) &&
+	if git update-ref $long_ref $commit; then
+		test_set_prereq LONG_REF
+	else
+		echo >&2 "long refs not supported"
+	fi
+'
+
+test_expect_success LONG_REF 'symbolic-ref can point to large ref name' '
+	git symbolic-ref HEAD $long_ref &&
+	echo $long_ref >expect &&
+	git symbolic-ref HEAD >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success LONG_REF 'we can parse long symbolic ref' '
+	echo $commit >expect &&
+	git rev-parse --verify HEAD >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'symbolic-ref reports failure in exit code' '
+	test_when_finished "rm -f .git/HEAD.lock" &&
+	>.git/HEAD.lock &&
+	test_must_fail git symbolic-ref HEAD refs/heads/whatever
+'
+
+test_expect_success 'symbolic-ref writes reflog entry' '
+	git checkout -b log1 &&
+	test_commit one &&
+	git checkout -b log2  &&
+	test_commit two &&
+	git checkout --orphan orphan &&
+	git symbolic-ref -m create HEAD refs/heads/log1 &&
+	git symbolic-ref -m update HEAD refs/heads/log2 &&
+	cat >expect <<-\EOF &&
+	update
+	create
+	EOF
+	git log --format=%gs -g -2 >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'symbolic-ref does not create ref d/f conflicts' '
+	git checkout -b df &&
+	test_commit df &&
+	test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df &&
+	git pack-refs --all --prune &&
+	test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df
+'
+
+test_expect_success 'symbolic-ref can overwrite pointer to invalid name' '
+	test_when_finished reset_to_sane &&
+	head=$(git rev-parse HEAD) &&
+	git symbolic-ref HEAD refs/heads/outer &&
+	test_when_finished "git update-ref -d refs/heads/outer/inner" &&
+	git update-ref refs/heads/outer/inner $head &&
+	git symbolic-ref HEAD refs/heads/unrelated
+'
+
+test_expect_success 'symbolic-ref can resolve d/f name (EISDIR)' '
+	test_when_finished reset_to_sane &&
+	head=$(git rev-parse HEAD) &&
+	git symbolic-ref HEAD refs/heads/outer/inner &&
+	test_when_finished "git update-ref -d refs/heads/outer" &&
+	git update-ref refs/heads/outer $head &&
+	echo refs/heads/outer/inner >expect &&
+	git symbolic-ref HEAD >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'symbolic-ref can resolve d/f name (ENOTDIR)' '
+	test_when_finished reset_to_sane &&
+	head=$(git rev-parse HEAD) &&
+	git symbolic-ref HEAD refs/heads/outer &&
+	test_when_finished "git update-ref -d refs/heads/outer/inner" &&
+	git update-ref refs/heads/outer/inner $head &&
+	echo refs/heads/outer >expect &&
+	git symbolic-ref HEAD >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'symbolic-ref refuses invalid target for non-HEAD' '
+	test_must_fail git symbolic-ref refs/heads/invalid foo..bar
+'
+
+test_expect_success 'symbolic-ref allows top-level target for non-HEAD' '
+	git symbolic-ref refs/heads/top-level FETCH_HEAD &&
+	git update-ref FETCH_HEAD HEAD &&
+	test_cmp_rev top-level HEAD
+'
+
+test_expect_success 'symbolic-ref pointing at another' '
+	git update-ref refs/heads/maint-2.37 HEAD &&
+	git symbolic-ref refs/heads/maint refs/heads/maint-2.37 &&
+	git checkout maint &&
+
+	git symbolic-ref HEAD >actual &&
+	echo refs/heads/maint-2.37 >expect &&
+	test_cmp expect actual &&
+
+	git symbolic-ref --no-recurse HEAD >actual &&
+	echo refs/heads/maint >expect &&
+	test_cmp expect actual
+'
+
+test_done