1 files changed, 81 insertions, 0 deletions
diff --git a/t/t0410-partial-clone.sh b/t/t0410-partial-clone.sh
new file mode 100755
index 0000000000..3ddb3b98fe
--- /dev/null
+++ b/t/t0410-partial-clone.sh
@@ -0,0 +1,81 @@
+#!/bin/sh
+
+test_description='partial clone'
+
+. ./test-lib.sh
+
+delete_object () {
+	rm $1/.git/objects/$(echo $2 | sed -e 's|^..|&/|')
+}
+
+pack_as_from_promisor () {
+	HASH=$(git -C repo pack-objects .git/objects/pack/pack) &&
+	>repo/.git/objects/pack/pack-$HASH.promisor
+}
+
+test_expect_success 'missing reflog object, but promised by a commit, passes fsck' '
+	test_create_repo repo &&
+	test_commit -C repo my_commit &&
+
+	A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
+	C=$(git -C repo commit-tree -m c -p $A HEAD^{tree}) &&
+
+	# Reference $A only from reflog, and delete it
+	git -C repo branch my_branch "$A" &&
+	git -C repo branch -f my_branch my_commit &&
+	delete_object repo "$A" &&
+
+	# State that we got $C, which refers to $A, from promisor
+	printf "$C\n" | pack_as_from_promisor &&
+
+	# Normally, it fails
+	test_must_fail git -C repo fsck &&
+
+	# But with the extension, it succeeds
+	git -C repo config core.repositoryformatversion 1 &&
+	git -C repo config extensions.partialclone "arbitrary string" &&
+	git -C repo fsck
+'
+
+test_expect_success 'missing reflog object, but promised by a tag, passes fsck' '
+	rm -rf repo &&
+	test_create_repo repo &&
+	test_commit -C repo my_commit &&
+
+	A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
+	git -C repo tag -a -m d my_tag_name $A &&
+	T=$(git -C repo rev-parse my_tag_name) &&
+	git -C repo tag -d my_tag_name &&
+
+	# Reference $A only from reflog, and delete it
+	git -C repo branch my_branch "$A" &&
+	git -C repo branch -f my_branch my_commit &&
+	delete_object repo "$A" &&
+
+	# State that we got $T, which refers to $A, from promisor
+	printf "$T\n" | pack_as_from_promisor &&
+
+	git -C repo config core.repositoryformatversion 1 &&
+	git -C repo config extensions.partialclone "arbitrary string" &&
+	git -C repo fsck
+'
+
+test_expect_success 'missing reflog object alone fails fsck, even with extension set' '
+	rm -rf repo &&
+	test_create_repo repo &&
+	test_commit -C repo my_commit &&
+
+	A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
+	B=$(git -C repo commit-tree -m b HEAD^{tree}) &&
+
+	# Reference $A only from reflog, and delete it
+	git -C repo branch my_branch "$A" &&
+	git -C repo branch -f my_branch my_commit &&
+	delete_object repo "$A" &&
+
+	git -C repo config core.repositoryformatversion 1 &&
+	git -C repo config extensions.partialclone "arbitrary string" &&
+	test_must_fail git -C repo fsck
+'
+
+test_done