Info2P5/Modul4/checker.c
2025-06-11 09:42:59 +02:00

124 lines
4.1 KiB
C

#include "checker.h"
#include <stdio.h>
typedef struct {
BOOL reset;
BOOL muenz_wert;
BOOL muenze;
BOOL becher;
} fsm_input_t;
typedef struct {
fsm_input_t input;
fsm_action_t output;
} fsm_transaction_t;
#include "s_transaction_list.h"
static const int s_transaction_list_size =
sizeof(s_transaction_list) / sizeof(*s_transaction_list);
#define ERROR_STRING_SIZE 1000
static char s_error_string[ERROR_STRING_SIZE] = { 0 };
static void checker_propagate_input(fsm_input_t input);
static BOOL checker_compare(fsm_action_t o1, fsm_action_t o2);
static void checker_write_error_string(
fsm_action_t current, fsm_input_t input,
fsm_action_t actual, fsm_action_t expected);
static void checker_clear_error_string(void);
/*****************************************************************************/
/* implementation of extern functions ****************************************/
/*****************************************************************************/
BOOL checker_check()
{
fsm_action_t last_out;
fsm_action_t new_out;
int i;
automat_reset();
for (i = 0; i < s_transaction_list_size; i++) {
last_out = automat_output();
checker_propagate_input(s_transaction_list[i].input);
new_out = automat_output();
if (!checker_compare(new_out, s_transaction_list[i].output)) {
checker_write_error_string(last_out, s_transaction_list[i].input,
new_out, s_transaction_list[i].output);
return false;
}
}
checker_clear_error_string();
return true;
}
const char * checker_error_string() { return s_error_string; }
/*****************************************************************************/
/* implementation of static functions ****************************************/
/*****************************************************************************/
void checker_propagate_input(fsm_input_t input)
{
if (input.reset) automat_reset();
else automat_transition(input.becher, input.muenze, input.muenz_wert);
}
BOOL checker_compare(fsm_action_t o1, fsm_action_t o2)
{
return o1.display == o2.display &&
o1.muenz_rueck == o2.muenz_rueck &&
o1.kaffee_los == o2.kaffee_los &&
o1.guthaben == o2.guthaben;
}
void checker_write_error_string(
fsm_action_t current, fsm_input_t input,
fsm_action_t actual, fsm_action_t expected)
{
if (input.reset) {
/* actually wanna use snprintf, but it's defined in c99 */
sprintf(s_error_string,
"Ausgangsvektor enthält nicht die erwarteten Werte:\n"
"Letzter Zustand: disp:%d rueck:%d los:%d guthaben:%d \"%s\"\n"
"Eingang: Reset\n"
"Ausgang: disp:%d rueck:%d los:%d guthaben:%d \"%s\"\n"
"Erwartet: disp:%d rueck:%d los:%d guthaben:%d",
current.display, current.muenz_rueck, current.kaffee_los,
current.guthaben, current.display_string,
actual.display, actual.muenz_rueck, actual.kaffee_los,
actual.guthaben, actual.display_string,
expected.display, expected.muenz_rueck, expected.kaffee_los,
expected.guthaben);
} else {
/* actually wanna use snprintf, but it's defined in c99 */
sprintf(s_error_string,
"Ausgangsvektor enthält nicht die erwarteten Werte:\n"
"Letzter Zustand: disp:%d rueck:%d los:%d guthaben:%d \"%s\"\n"
"Eingang: becher:%d muenze:%d muenz_wert:%d\n"
"Ausgang: disp:%d rueck:%d los:%d guthaben:%d \"%s\"\n"
"Erwartet: disp:%d rueck:%d los:%d guthaben:%d",
current.display, current.muenz_rueck, current.kaffee_los,
current.guthaben, current.display_string,
input.becher, input.muenze, input.muenz_wert,
actual.display, actual.muenz_rueck, actual.kaffee_los,
actual.guthaben, actual.display_string,
expected.display, expected.muenz_rueck, expected.kaffee_los,
expected.guthaben);
}
}
void checker_clear_error_string()
{
s_error_string[0] = '\0';
}