/**
 * ibs-utest.c
 *   A naive unit test for binary search.
 */

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

#include "ibs.h"

/**
 * Make a small "random" nonnegative integer.
 */
int
smallrand ()
{
  return abs (random () % 100);
} // smallrand

int
main (void)
{
  int foo[5];
  int errors = 0;

  foo[0] = 1 + smallrand ();
  foo[1] = foo[0] + smallrand ();
  foo[2] = foo[1] + smallrand ();
  foo[3] = foo[2] + smallrand ();
  foo[4] = foo[3] + smallrand ();

  if (ibs (foo, 5, foo[0]) !=  0)
    {
      fprintf (stderr, "Failed to find value in position 0.\n");
      ++errors;
    }

  if (ibs (foo, 5, foo[4]) !=  4)
    {
      fprintf (stderr, "Failed to find value in position 4.\n");
      ++errors;
    }

  fprintf (stderr, "%d errors encountered.\n", errors);
  return 0;
} // main