#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h> // for EXIT_FAILURE
/*#include <int_list.h>*/

#include <int_stack.h>
/*#include <stack.h>*/

/*
 * Stub test program for the list implementation in list.c.
 *
 * Author: Niclas Borlin (niclas.borlin@cs.umu.se).
 *
 * Version information:
 *   2018-01-28: v1.0.  First public version.
 *   2019-01-23: v1.1.  Added file comment. Removed memory cleanup on failure.
 *   2023-01-21: v2.0.  Complete re-write. Semi-serious attempt at a complete test program for
 *                      int_list.
 *   2023-01-21: v2.01. Updated print identification command.
 *   2023-03-23: v2.1.  Renamed list_pos_are_equal to list_pos_is_equal.
 *   2023-03-23: v2.2.  Removed empty if statements in test code.
 */

#define VERSION "v2.2"
#define VERSION_DATE "2023-03-23"

/*
 * Function to compare the values stored in the list.
 */
bool value_equal(int v1, int v2)
{
    return v1 == v2;
}





void isempty_return_true(void)
{
    stack s = stack_empty();
    if (stack_is_empty(s) == false){
        fprintf(stderr,"\nStack is empty but \"stack_is_empty\" reports non empty\n");
        /*return 1;*/
    }


    stack_print(s);
    s = stack_push(s,10);
    stack_print(s);
    if (stack_is_empty(s) == true){
        fprintf(stderr,"\nStack is non empty but \"stack_is_empty\" reports empty.\n");
        /*return 1;*/
    }    

    fprintf(stderr,"\n \"stack_is_empty\" function works!\n");
    stack_kill(s);

    {/*
    s = stack_push(s,2);
    int x;
    x = stack_top(s);
    fprintf(stderr,"value x: %x\n",x);
    int truevalue;
    truevalue = stack_is_empty(s);
    
    value_equal(truevalue,true);
    
    stack_print(s);
    */
    /*if s == {   }*/
    }
    
}

void push_stack_on_top(void)
{
    stack s = stack_empty();
    
    s = stack_push(s,1);
    s = stack_push(s,2);

    if (stack_top(s) == 1){
        fprintf(stderr,"\n\"stack_push\" puts values in wrong order.\n");
    }

}


int main(void)
{
    printf("%s, %s %s: Test program for the typed int_stack datatype.\n",
           __FILE__, VERSION, VERSION_DATE);
    printf("Code base version %s.\n\n", CODE_BASE_VERSION);

    
    isempty_return_true();

    fprintf(stderr,"\nSUCCESS: Implementation passed all tests. Normal exit.\n");
    return 0;
}