Mocking in c

mocking.c

#include <time.h>
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>

// gcc mocking.c -Wl,--wrap=rand -o mocking.exe

int __wrap_rand()
{
   return 5;
}

int get_random_dice()
{
   return (rand() % 6) + 1;
}

int enhance()
{
   int item_enhancement = 1;
   int dice = get_random_dice();
   if(dice > 3)
       item_enhancement = dice / 2;
   return item_enhancement;
}

void test_enhance()
{

   assert(enhance() == 3);
}

int main()
{
   srand(time(NULL));
   test_enhance();
}