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/*
 * mbed Microcontroller Library
 * Copyright (c) 2006-2018 ARM Limited
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * 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.
 */

/*
 * Based on mbed-stress-test by Marcus Chang @ Arm Mbed - http://github.com/ARMmbed/mbed-stress-test
*/

#include "mbed.h"
#include "FATFileSystem.h"
#include "LittleFileSystem.h"
#include "utest/utest.h"
#include "unity/unity.h"
#include "greentea-client/test_env.h"
#include "common_defines_test.h"
#include "file_test.h"

#ifdef MBED_CONF_APP_BASICS_TEST_FILENAME
  #include MBED_CONF_APP_BASICS_TEST_FILENAME
#else
  #include "alice.h"
#endif

#ifndef MBED_CONF_APP_TESTS_FS_SIZE
  #define MBED_CONF_APP_TESTS_FS_SIZE (2*1024*1024)
#endif

using namespace utest::v1;

#if !defined(MBED_CONF_APP_NO_LED)
DigitalOut led1(LED1);
DigitalOut led2(LED2);
void led_thread() {
    led1 = !led1;
    led2 = !led1;
}
#endif

BlockDevice* bd = BlockDevice::get_default_instance();
SlicingBlockDevice sd(bd, 0, MBED_CONF_APP_TESTS_FS_SIZE);
#if TEST_USE_FILESYSTEM == FS_FAT
FATFileSystem fs("sd");
#else
LittleFileSystem fs("sd");
#endif

static control_t test_format(const size_t call_count) {
    int format_err = fs.format(&sd);
    TEST_ASSERT_EQUAL_INT_MESSAGE(0, format_err, "could not format block device");

    int mount_err = fs.mount(&sd);
    TEST_ASSERT_EQUAL_INT_MESSAGE(0, mount_err, "could not mount block device");

    return CaseNext;
}

static uint32_t thread_counter = 0;

void file_fn(size_t buffer) {
    uint32_t thread_id = core_util_atomic_incr_u32(&thread_counter, 1);
    char filename[255] = { 0 };
    snprintf(filename, 255, "mbed-file-test-%d.txt", thread_id);
    file_test_write(filename, 0, story, sizeof(story), buffer);
    file_test_read(filename, 0, story, sizeof(story), buffer);
}
void file_4b_fn() { return file_fn(4); }
void file_256b_fn() { return file_fn(256); }
void file_1kb_fn() { return file_fn(1024); }
void file_2kb_fn() { return file_fn(2048); }
void file_4kb_fn() { return file_fn(4096); }

static control_t file_2_threads(const size_t call_count) {
    thread_counter = 0;

    Thread t1;
    Thread t2;
    t1.start(file_4b_fn);
    t2.start(file_256b_fn);
    t1.join();
    t2.join();
 
    return CaseNext;
}

static control_t file_3_threads(const size_t call_count) {
    thread_counter = 0;

    Thread t1;
    Thread t2;
    Thread t3;
    t1.start(file_256b_fn);
    t2.start(file_1kb_fn);
    t3.start(file_4kb_fn);
    t1.join();
    t2.join();
    t3.join();
 
    return CaseNext;
}

static control_t file_4_threads(const size_t call_count) {
    thread_counter = 0;

    Thread t1;
    Thread t2;
    Thread t3;
    Thread t4;
    t1.start(file_256b_fn);
    t2.start(file_256b_fn);
    t3.start(file_1kb_fn);
    t4.start(file_2kb_fn);
    t1.join();
    t2.join();
    t3.join();
    t4.join();
 
    return CaseNext;
}

utest::v1::status_t greentea_setup(const size_t number_of_cases) {
    GREENTEA_SETUP(10*60, "default_auto");
    return greentea_test_setup_handler(number_of_cases);
}

Case cases[] = {
    Case(TEST_BLOCK_DEVICE_TYPE "+" TEST_FILESYSTEM_TYPE " format", test_format),
    Case(TEST_BLOCK_DEVICE_TYPE "+" TEST_FILESYSTEM_TYPE " 2 files, buff 4b/256b", file_2_threads),
    Case(TEST_BLOCK_DEVICE_TYPE "+" TEST_FILESYSTEM_TYPE " 3 files, buff 256b/1kb/4kb", file_3_threads),
    //Case(TEST_BLOCK_DEVICE_TYPE "+" TEST_FILESYSTEM_TYPE " 4 files, buff 256b/256b/1kb/2kb", file_4_threads),
};

Specification specification(greentea_setup, cases);

int main() {
    //Create a thread to blink an LED and signal that the device is alive
#if !defined(MBED_CONF_APP_NO_LED)
    Ticker t;
    t.attach(led_thread, 0.5);
#endif

    return !Harness::run(specification);
}