using struct in looping test of arabic-to-roman

gistfile1.txt

#define DATA_COUNT 6
int  arabic_values[DATA_COUNT] = { 1, 2, 3, 4, 5, 6};
char *roman_values[DATA_COUNT] = { "I", "II", "III", "IV", "V", "VI"};

typedef struct Roman_Arabic_pair {
    char * roman;
    int arabic;
} Roman_Arabic_pair;

void check_arabic_to_roman(const Roman_Arabic_pair test_data, const char *actualRoman)
{
    ck_assert_msg(strcmp(actualRoman, test_data.roman) == 0,
		  "\ncompute_arabic_to_roman(%d): expected %s but was %s\n",
		  test_data.arabic, test_data.roman, actualRoman);
}

START_TEST(arabic_to_roman)
{
    char actual_ToRoman_Result[20];
	  Roman_Arabic_pair expected_roman_arabic_pair = 
		{ .roman = roman_values[_i], .arabic = arabic_values[_i] }; 

//  compute_arabic_to_roman(arabic_values[_i], actual_ToRoman_Result); // OLD WAY
    compute_arabic_to_roman(expected_roman_arabic_pair.arabic, actual_ToRoman_Result);

//  check_arabic_to_roman(arabic_values[_i], roman_values[_i], actual_ToRoman_Result); // OLD WAY
    check_arabic_to_roman(expected_roman_arabic_pair, actual_ToRoman_Result);
}
END_TEST


    TCase *tc_to_roman = tcase_create("ArabicToRoman");
    tcase_add_loop_test(tc_to_roman, compute_arabic_to_roman, 0, DATA_COUNT);
    suite_add_tcase(suite, tc_to_roman);