#include "../pizza3.h"
#include "unity.h"
#include <string.h>

#define FILE_NAME "testing_file.txt"

void prepare_file(const char* content){
    FILE* f = fopen(FILE_NAME,"w");
    fwrite(content,1,strlen(content),f);
    fclose(f);
}

void test_return_read_normal_line(){
    char content[100] = "first line\nsecond line";
    prepare_file(content);
    FILE* f = fopen(FILE_NAME,"r");
    char buffer[LINE_SIZE];
    int res = read_line(f,buffer,LINE_SIZE);
    char msg[1000];
    sprintf(msg,"Zla navratova hodnota. Obsah suboru: \"%s\"",content);
    TEST_ASSERT_GREATER_THAN_INT_MESSAGE(0,res,msg);
    TEST_ASSERT_EQUAL_INT_MESSAGE(11,res,msg);
    fclose(f);
}

void test_buffer_read_normal_line(){
    char content[100] = "first line\nsecond line";
    prepare_file(content);
    FILE* f = fopen(FILE_NAME,"r");
    char buffer[LINE_SIZE];
    read_line(f,buffer,LINE_SIZE);
    char msg[1000];
    sprintf(msg,"Zly obsah buffra. Obsah suboru: \"%s\"",content);
    TEST_ASSERT_EQUAL_STRING_MESSAGE("first line\n",buffer,msg);
    fclose(f);
}

void test_return_read_unfinished_line(){
    char content[100] = "first line";
    prepare_file(content);
    FILE* f = fopen(FILE_NAME,"r");
    char buffer[LINE_SIZE];
    int res = read_line(f,buffer,LINE_SIZE);
    char msg[1000];
    sprintf(msg,"Zla navratova hodnota. Funkcia ma vracat EOF.  Obsah suboru: \"%s\"",content);
    TEST_ASSERT_EQUAL_INT_MESSAGE(EOF,res,msg);
    fclose(f);
}

void test_buffer_read_unfinished_line(){
    char content[100] = "first line";
    prepare_file(content);
    FILE* f = fopen(FILE_NAME,"r");
    char buffer[LINE_SIZE];
    read_line(f,buffer,LINE_SIZE);
    char msg[1000];
    sprintf(msg,"Zly obsah buffra. Obsah suboru: \"%s\"",content);
    TEST_ASSERT_EQUAL_STRING_MESSAGE("first line",buffer,msg);
    fclose(f);
}

int main(){
    UNITY_BEGIN();
    RUN_TEST(test_return_read_normal_line);
    RUN_TEST(test_buffer_read_normal_line);
    RUN_TEST(test_return_read_unfinished_line);
    RUN_TEST(test_buffer_read_unfinished_line);
    return UNITY_END();
}