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Merge pull request #3936 from geky/bd-mbr
bd: Add MBR block device for standard storage partitioning
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‎features/TESTS/filesystem/mbr_block_device/main.cpp

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/* mbed Microcontroller Library
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* Copyright (c) 2017 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "mbed.h"
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#include "greentea-client/test_env.h"
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#include "unity.h"
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#include "utest.h"
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#include "HeapBlockDevice.h"
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#include "MBRBlockDevice.h"
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#include <stdlib.h>
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using namespace utest::v1;
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#define BLOCK_COUNT 16
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#define BLOCK_SIZE 512
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HeapBlockDevice bd(BLOCK_COUNT*BLOCK_SIZE, BLOCK_SIZE);
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// Testing formatting of master boot record
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void test_mbr_format()
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{
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// Create two partitions splitting device in ~half
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int err = MBRBlockDevice::partition(&bd, 1, 0x83, 0, (BLOCK_COUNT/2)*BLOCK_SIZE);
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TEST_ASSERT_EQUAL(0, err);
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err = MBRBlockDevice::partition(&bd, 2, 0x83, -(BLOCK_COUNT/2)*BLOCK_SIZE);
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TEST_ASSERT_EQUAL(0, err);
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// Load both partitions, as well as a third to check for invalid partitions
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MBRBlockDevice part1(&bd, 1);
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err = part1.init();
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TEST_ASSERT_EQUAL(0, err);
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MBRBlockDevice part2(&bd, 2);
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err = part2.init();
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TEST_ASSERT_EQUAL(0, err);
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MBRBlockDevice part3(&bd, 3);
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err = part3.init();
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TEST_ASSERT_EQUAL(BD_ERROR_INVALID_PARTITION, err);
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// Deinit partitions
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err = part1.deinit();
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TEST_ASSERT_EQUAL(0, err);
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err = part2.deinit();
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TEST_ASSERT_EQUAL(0, err);
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}
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// Testing mbr attributes
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void test_mbr_attr()
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{
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// Load partitions
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MBRBlockDevice part1(&bd, 1);
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int err = part1.init();
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TEST_ASSERT_EQUAL(0, err);
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MBRBlockDevice part2(&bd, 2);
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err = part2.init();
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TEST_ASSERT_EQUAL(0, err);
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// Test attributes on partitions
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printf("partition 1 partition number: %d\n", part1.get_partition_number());
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printf("partition 1 partition start: 0x%llx\n", part1.get_partition_start());
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printf("partition 1 partition stop: 0x%llx\n", part1.get_partition_stop());
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printf("partition 1 partition type: 0x%02x\n", part1.get_partition_type());
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printf("partition 1 read size: %llu bytes\n", part1.get_read_size());
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printf("partition 1 program size: %llu bytes\n", part1.get_program_size());
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printf("partition 1 erase size: %llu bytes\n", part1.get_erase_size());
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printf("partition 1 size: %llu bytes\n", part1.size());
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TEST_ASSERT_EQUAL(1, part1.get_partition_number());
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TEST_ASSERT_EQUAL(1*BLOCK_SIZE, part1.get_partition_start());
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TEST_ASSERT_EQUAL((BLOCK_COUNT/2)*BLOCK_SIZE, part1.get_partition_stop());
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TEST_ASSERT_EQUAL(0x83, part1.get_partition_type());
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TEST_ASSERT_EQUAL(BLOCK_SIZE, part1.get_read_size());
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TEST_ASSERT_EQUAL(BLOCK_SIZE, part1.get_program_size());
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TEST_ASSERT_EQUAL(BLOCK_SIZE, part1.get_erase_size());
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TEST_ASSERT_EQUAL(((BLOCK_COUNT/2)-1)*BLOCK_SIZE, part1.size());
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printf("partition 2 partition number: %d\n", part2.get_partition_number());
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printf("partition 2 partition start: 0x%llx\n", part2.get_partition_start());
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printf("partition 2 partition stop: 0x%llx\n", part2.get_partition_stop());
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printf("partition 2 partition type: 0x%02x\n", part2.get_partition_type());
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printf("partition 2 read size: %llu bytes\n", part2.get_read_size());
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printf("partition 2 program size: %llu bytes\n", part2.get_program_size());
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printf("partition 2 erase size: %llu bytes\n", part2.get_erase_size());
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printf("partition 2 size: %llu bytes\n", part2.size());
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TEST_ASSERT_EQUAL(2, part2.get_partition_number());
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TEST_ASSERT_EQUAL((BLOCK_COUNT/2)*BLOCK_SIZE, part2.get_partition_start());
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TEST_ASSERT_EQUAL(BLOCK_COUNT*BLOCK_SIZE, part2.get_partition_stop());
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TEST_ASSERT_EQUAL(0x83, part2.get_partition_type());
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TEST_ASSERT_EQUAL(BLOCK_SIZE, part2.get_read_size());
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TEST_ASSERT_EQUAL(BLOCK_SIZE, part2.get_program_size());
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TEST_ASSERT_EQUAL(BLOCK_SIZE, part2.get_erase_size());
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TEST_ASSERT_EQUAL((BLOCK_COUNT/2)*BLOCK_SIZE, part2.size());
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// Deinit partitions
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err = part1.deinit();
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TEST_ASSERT_EQUAL(0, err);
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err = part2.deinit();
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TEST_ASSERT_EQUAL(0, err);
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}
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// Testing mbr read write
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void test_mbr_read_write()
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{
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// Load partitions
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MBRBlockDevice part1(&bd, 1);
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int err = part1.init();
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TEST_ASSERT_EQUAL(0, err);
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MBRBlockDevice part2(&bd, 2);
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err = part2.init();
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TEST_ASSERT_EQUAL(0, err);
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// Test reading/writing the partitions
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uint8_t *write_block = new uint8_t[BLOCK_SIZE];
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uint8_t *read_block = new uint8_t[BLOCK_SIZE];
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// Fill with random sequence
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srand(1);
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for (int i = 0; i < BLOCK_SIZE; i++) {
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write_block[i] = 0xff & rand();
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}
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// Write, sync, and read the block
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err = part1.erase(0, BLOCK_SIZE);
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TEST_ASSERT_EQUAL(0, err);
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err = part1.program(write_block, 0, BLOCK_SIZE);
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TEST_ASSERT_EQUAL(0, err);
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err = part1.read(read_block, 0, BLOCK_SIZE);
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TEST_ASSERT_EQUAL(0, err);
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// Check that the data was unmodified
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srand(1);
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for (int i = 0; i < BLOCK_SIZE; i++) {
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TEST_ASSERT_EQUAL(0xff & rand(), read_block[i]);
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}
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// Check with original block device
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err = bd.read(read_block, 1*BLOCK_SIZE, BLOCK_SIZE);
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TEST_ASSERT_EQUAL(0, err);
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// Check that the data was unmodified
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srand(1);
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for (int i = 0; i < BLOCK_SIZE; i++) {
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TEST_ASSERT_EQUAL(0xff & rand(), read_block[i]);
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}
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// Test with second slice of block device
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srand(1);
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for (int i = 0; i < BLOCK_SIZE; i++) {
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write_block[i] = 0xff & rand();
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}
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// Write, sync, and read the block
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err = part2.erase(0, BLOCK_SIZE);
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TEST_ASSERT_EQUAL(0, err);
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err = part2.program(write_block, 0, BLOCK_SIZE);
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TEST_ASSERT_EQUAL(0, err);
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err = part2.read(read_block, 0, BLOCK_SIZE);
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TEST_ASSERT_EQUAL(0, err);
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// Check that the data was unmodified
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srand(1);
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for (int i = 0; i < BLOCK_SIZE; i++) {
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TEST_ASSERT_EQUAL(0xff & rand(), read_block[i]);
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}
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// Check with original block device
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err = bd.read(read_block, (BLOCK_COUNT/2)*BLOCK_SIZE, BLOCK_SIZE);
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TEST_ASSERT_EQUAL(0, err);
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// Check that the data was unmodified
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srand(1);
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for (int i = 0; i < BLOCK_SIZE; i++) {
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TEST_ASSERT_EQUAL(0xff & rand(), read_block[i]);
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}
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// Clean up
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delete[] write_block;
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delete[] read_block;
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err = part1.deinit();
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TEST_ASSERT_EQUAL(0, err);
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err = part2.deinit();
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TEST_ASSERT_EQUAL(0, err);
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}
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// Test setup
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utest::v1::status_t test_setup(const size_t number_of_cases) {
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GREENTEA_SETUP(10, "default_auto");
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return verbose_test_setup_handler(number_of_cases);
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}
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Case cases[] = {
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Case("Testing formatting of master boot record", test_mbr_format),
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Case("Testing mbr attributes", test_mbr_attr),
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Case("Testing mbr read write", test_mbr_read_write),
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};
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Specification specification(test_setup, cases);
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int main() {
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return !Harness::run(specification);
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}

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