/*
 * Copyright (C) 2021 Fabien-B <fabien-b@github.com> 
 *
 * This file is part of paparazzi. See LICENCE file.
 */

#include "stdio.h"
#include "stdlib.h"
#include "circular_buffer.h"
#include <string.h>
#include "tap.h"


uint8_t plop[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
uint8_t toto[5] = {105, 104, 103, 102, 101};
uint8_t azert[12] = {201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212};

uint8_t bubu[20];
struct circular_buffer cbuf;

int main(int argc __attribute_maybe_unused__, char **argv __attribute_maybe_unused__)
{

  note("running circular buffer tests");
  plan(15);

  circular_buffer_init(&cbuf, bubu, sizeof(bubu));

  uint8_t bout[18];

  // get on an empty buffer
  int ret = circular_buffer_get(&cbuf, bout, sizeof(bout));
  ok(ret == CIR_ERROR_NO_MSG, "expected CIR_ERROR_NO_MSG, got %d", ret);


  // put plop
  ret = circular_buffer_put(&cbuf, plop, sizeof(plop));
  ok(ret == 0, "expected 0, got %d\n", ret);

  // put toto
  ret = circular_buffer_put(&cbuf, toto, sizeof(toto));
  ok(ret == 0, "expected 0, got %d\n", ret);


  // put azert : should fail
  ret = circular_buffer_put(&cbuf, azert, sizeof(azert));
  ok(ret == CIR_ERROR_NO_SPACE_AVAILABLE, "expected CIR_ERROR_NO_SPACE_AVAILABLE, got %d\n", ret);

  // get first buffer: plop
  ret = circular_buffer_get(&cbuf, bout, sizeof(bout));
  ok(ret == sizeof(plop), "expected %ld, got %d", sizeof(plop), ret);
  ok(memcmp(bout, plop, ret) == 0, "buffer corrupted");


  // put azert. data should wrap around the buffer (8+15>20)
  ret = circular_buffer_put(&cbuf, azert, sizeof(azert));
  ok(ret == 0, "expected 0, got %d\n", ret);

  // get next buffer: toto
  ret = circular_buffer_get(&cbuf, bout, sizeof(bout));
  ok(ret == sizeof(toto), "expected %ld, got %d", sizeof(toto), ret);
  ok(memcmp(bout, toto, ret) == 0, "buffer corrupted");


  // put toto
  ret = circular_buffer_put(&cbuf, toto, sizeof(toto));
  ok(ret == 0, "expected 0, got %d\n", ret);


  // get next buffer: azert
  ret = circular_buffer_get(&cbuf, bout, sizeof(bout));
  ok(ret == sizeof(azert), "expected %ld, got %d", sizeof(azert), ret);
  ok(memcmp(bout, azert, ret) == 0, "buffer corrupted");


  // get next buffer: toto
  ret = circular_buffer_get(&cbuf, bout, sizeof(bout));
  ok(ret == sizeof(toto), "expected %ld, got %d", sizeof(toto), ret);
  ok(memcmp(bout, toto, ret) == 0, "buffer corrupted");


  // get on an empty buffer
  ret = circular_buffer_get(&cbuf, bout, sizeof(bout));
  ok(ret == CIR_ERROR_NO_MSG, "expected CIR_ERROR_NO_MSG, got %d", ret);

  return 0;
}