#include <stdio.h>
#include "unity/unity.h"
#include "stack.h"



void setUp(void){}
void tearDown(void){}

void TEST_CREATE_STACK(){

     int value = 4;
     int* ptr = &value;
    StackNode* stack = push(NULL,ptr);

    TEST_ASSERT_NOT_NULL(stack);
    TEST_ASSERT_EQUAL_INT(value, *(int*)(stack->value));

}


void TEST_STACK_POP() {

    int value1 = 4, value2 = 2;
    int* ptr = &value1;
    int* ptr2 = &value2;
    StackNode* stack = push(NULL,ptr);
    stack = push(stack,ptr2);
    stack = pop(stack);

    TEST_ASSERT_EQUAL_INT(value1, *(int*)(stack->value));

}


void TEST_STACK_PUSH() {

     int value1 = 4, value2 = 2;
    int* ptr = &value1;
    int* ptr2 = &value2;
    StackNode* stack = push(NULL,ptr);
    stack = push(stack,ptr2);

    TEST_ASSERT_EQUAL_INT(value2, *(int*)(stack->value));
}


int main(){
    UNITY_BEGIN();

    printf("\n============================\nstack tests\n============================\n");

    RUN_TEST(TEST_CREATE_STACK);
    RUN_TEST(TEST_STACK_POP);
    RUN_TEST(TEST_STACK_PUSH);

    return UNITY_END();
}

//Befehl zum Kompilieren: gcc stack.c stackTests.c unity/unity.c