1 files changed, 73 insertions, 0 deletions
diff --git a/tests/index/read_index.c b/tests/index/read_index.c
new file mode 100644
index 000000000..82a771d54
--- /dev/null
+++ b/tests/index/read_index.c
@@ -0,0 +1,73 @@
+#include "clar_libgit2.h"
+#include "posix.h"
+#include "index.h"
+
+static git_repository *_repo;
+static git_index *_index;
+
+void test_index_read_index__initialize(void)
+{
+	git_object *head;
+	git_reference *head_ref;
+
+	_repo = cl_git_sandbox_init("testrepo");
+	cl_git_pass(git_revparse_ext(&head, &head_ref, _repo, "HEAD"));
+	cl_git_pass(git_reset(_repo, head, GIT_RESET_HARD, NULL));
+	cl_git_pass(git_repository_index(&_index, _repo));
+
+	git_reference_free(head_ref);
+	git_object_free(head);
+}
+
+void test_index_read_index__cleanup(void)
+{
+	git_index_free(_index);
+	cl_git_sandbox_cleanup();
+}
+
+void test_index_read_index__maintains_stat_cache(void)
+{
+	git_index *new_index;
+	git_oid index_id;
+	git_index_entry new_entry;
+	const git_index_entry *e;
+	git_tree *tree;
+	size_t i;
+
+	cl_assert_equal_i(4, git_index_entrycount(_index));
+
+	/* write-tree */
+	cl_git_pass(git_index_write_tree(&index_id, _index));
+
+	/* read-tree, then read index */
+	git_tree_lookup(&tree, _repo, &index_id);
+	cl_git_pass(git_index_new(&new_index));
+	cl_git_pass(git_index_read_tree(new_index, tree));
+	git_tree_free(tree);
+
+	/* add a new entry that will not have stat data */
+	memset(&new_entry, 0, sizeof(git_index_entry));
+	new_entry.path = "Hello";
+	git_oid_fromstr(&new_entry.id, "0123456789012345678901234567890123456789");
+	new_entry.file_size = 1234;
+	new_entry.mode = 0100644;
+	cl_git_pass(git_index_add(new_index, &new_entry));
+	cl_assert_equal_i(5, git_index_entrycount(new_index));
+
+	cl_git_pass(git_index_read_index(_index, new_index));
+	git_index_free(new_index);
+
+	cl_assert_equal_i(5, git_index_entrycount(_index));
+
+	for (i = 0; i < git_index_entrycount(_index); i++) {
+		e = git_index_get_byindex(_index, i);
+
+		if (strcmp(e->path, "Hello") == 0) {
+			cl_assert_equal_i(0, e->ctime.seconds);
+			cl_assert_equal_i(0, e->mtime.seconds);
+		} else {
+			cl_assert(0 != e->ctime.seconds);
+			cl_assert(0 != e->mtime.seconds);
+		}
+	}
+}