1 files changed, 45 insertions, 0 deletions
diff --git a/dtc/tests/path_offset_aliases.c b/dtc/tests/path_offset_aliases.c
new file mode 100644
index 000000000..0112e7250
--- /dev/null
+++ b/dtc/tests/path_offset_aliases.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+/*
+ * libfdt - Flat Device Tree manipulation
+ *	Testcase for fdt_path_offset()
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ * Copyright 2008 Kumar Gala, Freescale Semiconductor, Inc.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+static void check_alias(void *fdt, const char *full_path, const char *alias_path)
+{
+	int offset, offset_a;
+
+	offset = fdt_path_offset(fdt, full_path);
+	offset_a = fdt_path_offset(fdt, alias_path);
+
+	if (offset != offset_a)
+		FAIL("Mismatch between %s path_offset (%d) and %s path_offset alias (%d)",
+		     full_path, offset, alias_path, offset_a);
+}
+
+int main(int argc, char *argv[])
+{
+	void *fdt;
+
+	test_init(argc, argv);
+	fdt = load_blob_arg(argc, argv);
+
+	check_alias(fdt, "/subnode@1", "s1");
+	check_alias(fdt, "/subnode@1/subsubnode", "ss1");
+	check_alias(fdt, "/subnode@1/subsubnode", "s1/subsubnode");
+	check_alias(fdt, "/subnode@1/subsubnode/subsubsubnode", "sss1");
+	check_alias(fdt, "/subnode@1/subsubnode/subsubsubnode", "ss1/subsubsubnode");
+	check_alias(fdt, "/subnode@1/subsubnode/subsubsubnode", "s1/subsubnode/subsubsubnode");
+
+	PASS();
+}