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mbed-os/features/storage/TESTS/blockdevice/buffered_block_device/main.cpp

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/* mbed Microcontroller Library
* Copyright (c) 2018 ARM Limited
*
* Licensed 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.
*/
#include "greentea-client/test_env.h"
#include "unity.h"
#include "utest.h"
#include "BufferedBlockDevice.h"
#include "HeapBlockDevice.h"
#include <stdlib.h>
using namespace utest::v1;
static const bd_size_t heap_erase_size = 512;
static const bd_size_t num_blocks = 4;
typedef struct {
bd_size_t read_size;
bd_size_t prog_size;
} sizes_t;
static const int num_tests = 4;
sizes_t sizes[num_tests] = {
{1, 1},
{1, 128},
{4, 256},
{256, 512}
};
void functionality_test()
{
for (int i = 0; i < num_tests; i++) {
bd_size_t heap_read_size = sizes[i].read_size;
bd_size_t heap_prog_size = sizes[i].prog_size;
printf("Testing read size of %lld, prog size of %lld\n", heap_read_size, heap_prog_size);
uint8_t *read_buf, *write_buf;
read_buf = new (std::nothrow) uint8_t[heap_erase_size];
TEST_SKIP_UNLESS_MESSAGE(read_buf, "Not enough memory for test");
write_buf = new (std::nothrow) uint8_t[heap_erase_size];
TEST_SKIP_UNLESS_MESSAGE(write_buf, "Not enough memory for test");
uint8_t *dummy = new (std::nothrow) uint8_t[num_blocks * heap_erase_size + heap_prog_size + heap_read_size];
TEST_SKIP_UNLESS_MESSAGE(dummy, "Not enough memory for test");
delete[] dummy;
HeapBlockDevice *heap_bd = new HeapBlockDevice(num_blocks * heap_erase_size, heap_read_size, heap_prog_size, heap_erase_size);
BufferedBlockDevice *bd = new BufferedBlockDevice(heap_bd);
int err = bd->init();
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL(1, bd->get_read_size());
TEST_ASSERT_EQUAL(1, bd->get_program_size());
TEST_ASSERT_EQUAL(heap_erase_size, bd->get_erase_size());
for (bd_size_t i = 0; i < num_blocks; i++) {
memset(write_buf, i, heap_erase_size);
err = heap_bd->program(write_buf, i * heap_erase_size, heap_erase_size);
// Heap BD allocates memory on each program, so failure here indicates
// lack of memory - just skip test.
TEST_SKIP_UNLESS_MESSAGE(!err, "Not enough memory for test");
}
err = bd->read(read_buf, heap_erase_size + heap_erase_size / 2, 1);
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL(1, read_buf[0]);
err = bd->read(read_buf, 2 * heap_erase_size + heap_erase_size / 2, 4);
TEST_ASSERT_EQUAL(0, err);
memset(write_buf, 2, 4);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, 4);
memset(write_buf, 1, heap_erase_size);
memset(write_buf + 64, 0x5A, 8);
memset(write_buf + 72, 0xA5, 8);
err = bd->program(write_buf + 64, heap_erase_size + 64, 8);
TEST_ASSERT_EQUAL(0, err);
err = bd->program(write_buf + 72, heap_erase_size + 72, 8);
TEST_ASSERT_EQUAL(0, err);
err = bd->read(read_buf, heap_erase_size, heap_erase_size);
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, heap_erase_size);
memset(write_buf, 1, heap_erase_size);
// Underlying BD should not be updated before sync
err = heap_bd->read(read_buf, heap_erase_size, heap_erase_size);
TEST_ASSERT_EQUAL(0, err);
if (heap_prog_size > 1) {
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, heap_erase_size);
}
err = bd->sync();
TEST_ASSERT_EQUAL(0, err);
memset(write_buf + 64, 0x5A, 8);
memset(write_buf + 72, 0xA5, 8);
// Should be updated now
err = bd->read(read_buf, heap_erase_size, heap_erase_size);
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, heap_erase_size);
err = heap_bd->read(read_buf, heap_erase_size, heap_erase_size);
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, heap_erase_size);
memset(write_buf, 0xAA, 16);
memset(write_buf + 16, 0xBB, 16);
err = bd->program(write_buf, 3 * heap_erase_size - 16, 32);
TEST_ASSERT_EQUAL(0, err);
// First block should sync, but second still shouldn't
memset(write_buf, 2, heap_erase_size - 16);
memset(write_buf + heap_erase_size - 16, 0xAA, 16);
err = heap_bd->read(read_buf, 2 * heap_erase_size, heap_erase_size);
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, heap_erase_size);
memset(write_buf, 3, heap_erase_size);
err = heap_bd->read(read_buf, 3 * heap_erase_size, heap_erase_size);
TEST_ASSERT_EQUAL(0, err);
if (heap_prog_size > 1) {
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, heap_erase_size);
}
memset(write_buf, 0xBB, 16);
err = bd->read(read_buf, 3 * heap_erase_size, heap_erase_size);
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, heap_erase_size);
// Writing to another block should automatically sync
err = bd->program(write_buf, 15, 1);
TEST_ASSERT_EQUAL(0, err);
err = heap_bd->read(read_buf, 3 * heap_erase_size, heap_erase_size);
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, heap_erase_size);
err = bd->read(read_buf, 3 * heap_erase_size, heap_erase_size);
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, heap_erase_size);
// Unaligned reads and writes
memset(write_buf, 2, 41);
memset(write_buf + 41, 0x39, 21);
err = bd->program(write_buf + 41, 2 * heap_erase_size + 41, 21);
TEST_ASSERT_EQUAL(0, err);
err = heap_bd->read(read_buf, 2 * heap_erase_size, heap_erase_size);
TEST_ASSERT_EQUAL(0, err);
if (heap_prog_size > 1) {
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, 41);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf + 41, 21);
}
err = bd->read(read_buf, 2 * heap_erase_size + 4, 41 + 21 - 4);
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf + 4, read_buf, 41 + 21 - 4);
bd->sync();
err = heap_bd->read(read_buf, 2 * heap_erase_size, heap_erase_size);
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf, read_buf, 41 + 21);
err = bd->read(read_buf, 2 * heap_erase_size + 10, 41 + 21 - 10);
TEST_ASSERT_EQUAL(0, err);
TEST_ASSERT_EQUAL_UINT8_ARRAY(write_buf + 10, read_buf, 41 + 21 - 10);
bd->deinit();
delete[] read_buf;
delete[] write_buf;
delete bd;
delete heap_bd;
}
}
// Test setup
utest::v1::status_t test_setup(const size_t number_of_cases)
{
GREENTEA_SETUP(30, "default_auto");
return verbose_test_setup_handler(number_of_cases);
}
Case cases[] = {
Case("BufferedBlockDevice functionality test", functionality_test),
};
Specification specification(test_setup, cases);
int main()
{
return !Harness::run(specification);
}
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