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/*
 * Copyright (C) 2023 Johnny Richard
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
#define MUNIT_ENABLE_ASSERT_ALIASES
#include "munit.h"
#include "vector.h"

static MunitResult
test_create_new(const MunitParameter params[], void *user_data_or_fixture)
{
  vector_t *vec = vector_new();

  assert_not_null(vec);
  assert_int(vec->capacity, ==, VECTOR_INITIAL_CAPACITY);
  assert_int(vec->size, ==, 0);

  // assert we have allocated memory for full capacity

  int items[VECTOR_INITIAL_CAPACITY];

  for (int i = 0; i < VECTOR_INITIAL_CAPACITY; ++i) {
    items[i] = 1;
    vec->items[i] = &items[i];
  }

  for (int i = 0; i < VECTOR_INITIAL_CAPACITY; ++i) {
    assert_int(*((int *)vec->items[i]), ==, 1);
  }

  vector_destroy(vec);

  return MUNIT_OK;
}

static MunitResult
test_push_back(const MunitParameter params[], void *user_data_or_fixture)
{
  vector_t *vec = vector_new();

  int number1 = 1;
  int number2 = 2;

  vector_push_back(vec, (void *)&number1);
  vector_push_back(vec, (void *)&number2);

  assert_int(vec->size, ==, 2);
  assert_int(*((int *)vector_at(vec, 0)), ==, number1);
  assert_int(*((int *)vector_at(vec, 1)), ==, number2);

  vector_destroy(vec);

  return MUNIT_OK;
}

static MunitResult
test_vector_push_back_until_resize(const MunitParameter params[], void *user_data_or_fixture)
{
  vector_t *vec = vector_new();

  int items[VECTOR_INITIAL_CAPACITY + 1];

  for (int i = 0; i < VECTOR_INITIAL_CAPACITY; ++i) {
    items[i] = 1;
    vector_push_back(vec, (void *)&items[i]);
  }

  items[VECTOR_INITIAL_CAPACITY] = 1;
  vector_push_back(vec, (void *)&items[VECTOR_INITIAL_CAPACITY]);

  assert_int(vec->size, ==, VECTOR_INITIAL_CAPACITY + 1);
  assert_int(vec->capacity, ==, VECTOR_INITIAL_CAPACITY * 2);

  for (int i = 0; i < vec->size; ++i) {
    assert_int(*((int *)vec->items[i]), ==, 1);
  }

  vector_destroy(vec);

  return MUNIT_OK;
}

static MunitTest tests[] = { { "/test_create_new", test_create_new, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
                             { "/test_push_back", test_push_back, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
                             { "/test_vector_push_back_until_resize",
                               test_vector_push_back_until_resize,
                               NULL,
                               NULL,
                               MUNIT_TEST_OPTION_NONE,
                               NULL },

                             { NULL, NULL, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL } };

static const MunitSuite suite = { "/vector", tests, NULL, 1, MUNIT_SUITE_OPTION_NONE };

int
main(int argc, char *argv[])
{
  return munit_suite_main(&suite, NULL, argc, argv);
  return EXIT_SUCCESS;
}