/**
 * is-in-order-utest.c
 *   Some unit tests for the is_in_order procedure.
 */

#include <stdio.h>
#include "int-testing-tools.h"
#include "string-testing-tools.h"

int errors = 0;

void
int_check (int a[], int size, int expected)
{
  int result = is_in_order (a, size);
  if (result != expected)
    {
      printf ("TEST: is_in_order(");
      print_int_array (a, size);
      printf (")\n");
      printf ("  RESULT:   %d\n", result);
      printf ("  EXPECTED: %d\n", expected);
      ++errors;
    }
} // int_check

void
string_check (char *a[], int size, int expected)
{
  int result = string_is_in_order (a, size);
  if (result != expected)
    {
      printf ("TEST: is_in_order(");
      print_string_array (a, size);
      printf (")\n");
      printf ("  RESULT:   %d\n", result);
      printf ("  EXPECTED: %d\n", expected);
      ++errors;
    }
} // string_check

void
int_tests ()
{
  int_check ((int[]) { }, 0, 1);
  int_check ((int[]) { 1 }, 1, 1);

  int_check ((int[]) { 1, 2 }, 2, 1);
  int_check ((int[]) { 2, 1 }, 2, 0);
  int_check ((int[]) { 1, 1 }, 2, 1);

  int_check ((int[]) { 1, 1, 1 }, 3, 1);

  int_check ((int[]) { 1, 1, 2 }, 3, 1);
  int_check ((int[]) { 1, 2, 1 }, 3, 0);
  int_check ((int[]) { 2, 1, 1 }, 3, 0);

  int_check ((int[]) { 1, 2, 2 }, 3, 1);
  int_check ((int[]) { 2, 1, 2 }, 3, 0);
  int_check ((int[]) { 2, 2, 1 }, 3, 0);

  int_check ((int[]) { 1, 2, 3 }, 3, 1);
  int_check ((int[]) { 2, 1, 3 }, 3, 0);
  int_check ((int[]) { 1, 3, 2 }, 3, 0);
  int_check ((int[]) { 3, 1, 2 }, 3, 0);
  int_check ((int[]) { 2, 3, 1 }, 3, 0);
  int_check ((int[]) { 3, 2, 1 }, 3, 0);
}

void
string_tests ()
{
  string_check ((char *[]) { }, 0, 1);

  string_check ((char *[]) { "ant" }, 1, 1);

  string_check ((char *[]) { "ant", "ant" }, 2, 1);
  string_check ((char *[]) { "ant", "bee" }, 2, 1);
  string_check ((char *[]) { "bee", "ant" }, 2, 0);

  string_check ((char *[]) { "ant", "bee", "doe" }, 3, 1);
  string_check ((char *[]) { "ant", "ant", "ant" }, 3, 1);
  string_check ((char *[]) { "aa", "ab", "ac" }, 3, 1);
  string_check ((char *[]) { "doe", "ant", "ant" }, 3, 0);

} // string_tests

int
main ()
{
  int_tests ();
  string_tests ();

  if (errors)
    printf ("%d errors encountered.\n", errors);
  return errors;
} // main