1 files changed, 85 insertions, 0 deletions
diff --git a/tests/libgit2/refs/basic.c b/tests/libgit2/refs/basic.c
new file mode 100644
index 000000000..32742f9cc
--- /dev/null
+++ b/tests/libgit2/refs/basic.c
@@ -0,0 +1,85 @@
+#include "clar_libgit2.h"
+
+#include "futils.h"
+#include "refs.h"
+#include "ref_helpers.h"
+
+static git_repository *g_repo;
+
+static const char *loose_tag_ref_name = "refs/tags/e90810b";
+
+void test_refs_basic__initialize(void)
+{
+	g_repo = cl_git_sandbox_init("testrepo");
+	cl_git_pass(git_repository_set_ident(g_repo, "me", "foo@example.com"));
+}
+
+void test_refs_basic__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+void test_refs_basic__reference_realloc(void)
+{
+	git_reference *ref;
+	git_reference *new_ref;
+	const char *new_name = "refs/tags/awful/name-which-is/clearly/really-that-much/longer-than/the-old-one";
+
+	/* Retrieval of the reference to rename */
+	cl_git_pass(git_reference_lookup(&ref, g_repo, loose_tag_ref_name));
+
+	new_ref = git_reference__realloc(&ref, new_name);
+	cl_assert(new_ref != NULL);
+	git_reference_free(new_ref);
+	git_reference_free(ref);
+
+	/* Reload, so we restore the value */
+	cl_git_pass(git_reference_lookup(&ref, g_repo, loose_tag_ref_name));
+
+	cl_git_pass(git_reference_rename(&new_ref, ref, new_name, 1, "log message"));
+	cl_assert(ref != NULL);
+	cl_assert(new_ref != NULL);
+	git_reference_free(new_ref);
+	git_reference_free(ref);
+}
+
+void test_refs_basic__longpaths(void)
+{
+#ifdef GIT_WIN32
+	const char *base;
+	size_t base_len, extra_len;
+	ssize_t remain_len, i;
+	git_str refname = GIT_STR_INIT;
+	git_reference *one = NULL, *two = NULL;
+	git_oid id;
+
+	cl_git_pass(git_oid_fromstr(&id, "099fabac3a9ea935598528c27f866e34089c2eff"));
+
+	base = git_repository_path(g_repo);
+	base_len = git_utf8_char_length(base, strlen(base));
+	extra_len = CONST_STRLEN("logs/refs/heads/") + CONST_STRLEN(".lock");
+
+	remain_len = (ssize_t)MAX_PATH - (base_len + extra_len);
+	cl_assert(remain_len > 0);
+
+	cl_git_pass(git_str_puts(&refname, "refs/heads/"));
+
+	for (i = 0; i < remain_len; i++) {
+		cl_git_pass(git_str_putc(&refname, 'a'));
+	}
+
+	/*
+	 * The full path to the reflog lockfile is 260 characters,
+	 * this is permitted.
+	 */
+	cl_git_pass(git_reference_create(&one, g_repo, refname.ptr, &id, 0, NULL));
+
+	/* Adding one more character gives us a path that is too long. */
+	cl_git_pass(git_str_putc(&refname, 'z'));
+	cl_git_fail(git_reference_create(&two, g_repo, refname.ptr, &id, 0, NULL));
+
+	git_reference_free(one);
+	git_reference_free(two);
+	git_str_dispose(&refname);
+#endif
+}