add tests for htbl

#include <stdio.h>

#include <stdlib.h>

#include <assert.h>

#include "hash_tbl.h"

// char* val

size_t hash(void* val){

  return (*((char*) val)) & ((1<<5) - 1);

}

int eq(void* a, void* b){

  char* aa = (char*) a;

  char* bb = (char*) b;

  for(int i = 0; i <16; i++)

    if(aa[i] != bb[i])

      return 0;

  return 1;

}

void test_empty() {

  hash_tbl htbl = htbl_empty(&hash, &eq, &free);

  assert(htbl->size == 0);

  printf("test_empty OK\n");

}

void test_add() {

  char a[] = "Coucou 1";

  char b[] = "Coucou 2";

  hash_tbl htbl = htbl_empty(&hash, &eq, &free);

  htbl_add(htbl, a);

  assert(htbl->size == 1);

  assert(list_in(htbl->array[hash(a)], a, &eq));

  htbl_add(htbl, a);

  assert(htbl->size == 1);

  assert(list_in(htbl->array[hash(a)], a, &eq));

  htbl_add(htbl, b);

  assert(htbl->size == 2);

  assert(list_in(htbl->array[hash(a)], a, &eq));

  assert(list_in(htbl->array[hash(b)], b, &eq));

  printf("test_add OK\n");

}

void test_in() {

  char a[] = "Coucou 1";

  char b[] = "Coucou 2";

  hash_tbl htbl = htbl_empty(&hash, &eq, &free);

  htbl_add(htbl, a);

  assert(htbl_in(htbl, a));

  assert(!htbl_in(htbl, b));

  htbl_add(htbl, b);

  assert(htbl_in(htbl, a));

  assert(htbl_in(htbl, b));

  printf("test_in OK\n"); 

}

void test_destroy() {

  char a[] = "Coucou 1";

  char b[] = "Coucou 2";

  hash_tbl htbl = htbl_empty(&hash, &eq, &free);

  htbl_add(htbl, a);

  htbl_add(htbl, b);

  htbl_destroy(htbl);

  printf("test_destroy OK\n"); 

}

int main() {

  printf("=== HTBL tests ===\n");

  test_empty();

  test_add();

  test_in();

  test_destroy();

  return 0;

}