--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <unistd.h>
+
+#include "mkdir.h"
+#include "path-util.h"
+#include "rm-rf.h"
+#include "tests.h"
+#include "tmpfile-util.h"
+
+TEST(mkdir_p) {
+ _cleanup_(rm_rf_physical_and_freep) char *tmp = NULL;
+ _cleanup_free_ char *p = NULL;
+
+ assert_se(mkdtemp_malloc("/tmp/test-mkdir-XXXXXX", &tmp) >= 0);
+
+ assert_se(p = path_join(tmp, "run"));
+ assert_se(mkdir_p(p, 0755) >= 0);
+
+ p = mfree(p);
+ assert_se(p = path_join(tmp, "var/run"));
+ assert_se(mkdir_parents(p, 0755) >= 0);
+ assert_se(symlink("../run", p) >= 0);
+
+ p = mfree(p);
+ assert_se(p = path_join(tmp, "var/run/hoge/foo/baz"));
+ assert_se(mkdir_p(p, 0755) >= 0);
+}
+
+DEFINE_TEST_MAIN(LOG_DEBUG);