1 files changed, 57 insertions, 0 deletions
diff --git a/dtc/tests/nop_property.c b/dtc/tests/nop_property.c
new file mode 100644
index 000000000..65938289e
--- /dev/null
+++ b/dtc/tests/nop_property.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+/*
+ * libfdt - Flat Device Tree manipulation
+ *	Testcase for fdt_nop_property()
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdint.h>
+
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+int main(int argc, char *argv[])
+{
+	void *fdt;
+	const uint32_t *intp;
+	const char *strp;
+	int err;
+	int lenerr;
+
+	test_init(argc, argv);
+	fdt = load_blob_arg(argc, argv);
+
+	intp = check_getprop_cell(fdt, 0, "prop-int", TEST_VALUE_1);
+	verbose_printf("int value was 0x%08x\n", *intp);
+
+	err = fdt_nop_property(fdt, 0, "prop-int");
+	if (err)
+		FAIL("Failed to nop \"prop-int\": %s", fdt_strerror(err));
+
+	intp = fdt_getprop(fdt, 0, "prop-int", &lenerr);
+	if (intp)
+		FAIL("prop-int still present after nopping");
+	if (lenerr != -FDT_ERR_NOTFOUND)
+		FAIL("Unexpected error on second getprop: %s", fdt_strerror(err));
+
+	strp = check_getprop(fdt, 0, "prop-str", strlen(TEST_STRING_1)+1,
+			     TEST_STRING_1);
+	verbose_printf("string value was \"%s\"\n", strp);
+	err = fdt_nop_property(fdt, 0, "prop-str");
+	if (err)
+		FAIL("Failed to nop \"prop-str\": %s", fdt_strerror(err));
+
+	strp = fdt_getprop(fdt, 0, "prop-str", &lenerr);
+	if (strp)
+		FAIL("prop-str still present after nopping");
+	if (lenerr != -FDT_ERR_NOTFOUND)
+		FAIL("Unexpected error on second getprop: %s", fdt_strerror(err));
+
+	PASS();
+}