tests/subsys/fs/nffs_fs_api/src/test_wear_level.c

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/*
 * SPDX-License-Identifier: Apache-2.0
 */

#include <stdint.h>
#include <nffs/nffs.h>
#include <fs.h>
#include "nffs_test_utils.h"
#include <ztest_assert.h>

void test_wear_level(void)
{
	int rc;
	int i;
	int j;

	static const struct nffs_area_desc area_descs_uniform[] = {
		{ 0x00000000 + TEST_FLASH_OFFSET, 4 * 1024 },
		{ 0x00020000 + TEST_FLASH_OFFSET, 4 * 1024 },
		{ 0x00040000 + TEST_FLASH_OFFSET, 4 * 1024 },
		{ 0x00060000 + TEST_FLASH_OFFSET, 4 * 1024 },
		{ 0x00080000 + TEST_FLASH_OFFSET, 4 * 1024 },
		{ 0, 0 },
	};

	/*** Setup. */
	rc = nffs_format_full(area_descs_uniform);
	zassert_equal(rc, 0, "cannot format nffs");

	/* Ensure areas rotate properly. */
	for (i = 0; i < 255; i++) {
		for (j = 0; j < nffs_num_areas; j++) {
			nffs_test_assert_area_seqs(i, nffs_num_areas - j, i + 1, j);
			nffs_gc(NULL);
		}
	}

	/* Ensure proper rollover of sequence numbers. */
	for (j = 0; j < nffs_num_areas; j++) {
		nffs_test_assert_area_seqs(255, nffs_num_areas - j, 0, j);
		nffs_gc(NULL);
	}
	for (j = 0; j < nffs_num_areas; j++) {
		nffs_test_assert_area_seqs(0, nffs_num_areas - j, 1, j);
		nffs_gc(NULL);
	}
}