/**
 * string-swap-utests: Unit tests of string-swap.
 */

// +---------+--------------------------------------------------------
// | Headers |
// +---------+

#include <stdio.h>		// For printf
#include <string.h>		// For strcpy

#include "string-utils.h"	// For string_swap
#include "utest.h"		// For CHECK_STRING


// +---------+--------------------------------------------------------
// | Helpers |
// +---------+

/**
 * Given an array of strings, make sure that every i/j swap 
 * works correctly.
 */
void
test_swap (char *strings[], int len)
{
  char *original[len];
  int i;
  int j;

  // Make a copy of the array so that we have something to compare it to
  for (i = 0; i < len; i++)
    original[i] = strings[i];
 
  // Do every i/j pair
  for (i = 0; i < len; i++)
    {
    } // for
} // test_swap


// +------+-----------------------------------------------------------
// | Main |
// +------+

int
main ()
{
  // A few simple strings
  test_swap ("abcde", "edcba");
  test_swap ("madam im adam", "mada mi madam");
  
  // A variety of sizes.  (swap might have problems on some sizes).
  // Note: These should be generated automatically, but I'm lazy.
  test_swap ("", "");
  test_swap ("z", "z");
  test_swap ("yz", "zy");
  test_swap ("xyz", "zyx");
  test_swap ("wxyz", "zyxw");
  test_swap ("vwxyz", "zyxwv");
  test_swap ("uvwxyz", "zyxwvu");
  test_swap ("tuvwxyz", "zyxwvut");
  test_swap ("stuvwxyz", "zyxwvuts");
  test_swap ("rstuvwxyz", "zyxwvutsr");

  if (! errors)
    printf ("All tests passed!\n");
  else
    printf ("%d errors encountered\n", errors);

  return errors;
} // main