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package de.hysky.skyblocker.utils;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
class RomanNumeralsTest {
@Test
void testRomanToDecimal() {
// Test the first 50 numbers
String[] expected = new String[]{"I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX", "X", "XI", "XII", "XIII", "XIV", "XV", "XVI", "XVII", "XVIII", "XIX", "XX", "XXI", "XXII", "XXIII", "XXIV", "XXV", "XXVI", "XXVII", "XXVIII", "XXIX", "XXX", "XXXI", "XXXII", "XXXIII", "XXXIV", "XXXV", "XXXVI", "XXXVII", "XXXVIII", "XXXIX", "XL", "XLI", "XLII", "XLIII", "XLIV", "XLV", "XLVI", "XLVII", "XLVIII", "XLIX", "L"};
for (int i = 1; i <= 50; i++) {
Assertions.assertEquals(i, RomanNumerals.romanToDecimal(expected[i - 1]));
}
Assertions.assertEquals(100, RomanNumerals.romanToDecimal("C"));
Assertions.assertEquals(400, RomanNumerals.romanToDecimal("CD"));
Assertions.assertEquals(500, RomanNumerals.romanToDecimal("D"));
Assertions.assertEquals(900, RomanNumerals.romanToDecimal("CM"));
Assertions.assertEquals(1000, RomanNumerals.romanToDecimal("M"));
Assertions.assertEquals(1999, RomanNumerals.romanToDecimal("MCMXCIX"));
}
@Test
void isValidRoman() {
Assertions.assertTrue(RomanNumerals.isValidRomanNumeral("I"));
Assertions.assertFalse(RomanNumerals.isValidRomanNumeral("AI"));
Assertions.assertTrue(RomanNumerals.isValidRomanNumeral("CMI"));
Assertions.assertFalse(RomanNumerals.isValidRomanNumeral(" CMI"));
Assertions.assertFalse(RomanNumerals.isValidRomanNumeral("XI I"));
Assertions.assertFalse(RomanNumerals.isValidRomanNumeral("A"));
Assertions.assertFalse(RomanNumerals.isValidRomanNumeral("15"));
Assertions.assertFalse(RomanNumerals.isValidRomanNumeral("MCMLXXXAIV"));
Assertions.assertFalse(RomanNumerals.isValidRomanNumeral(null));
Assertions.assertFalse(RomanNumerals.isValidRomanNumeral(""));
}
@Test
void testDecimalToRoman() {
String[] expected = new String[]{"I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX", "X", "XI", "XII", "XIII", "XIV", "XV", "XVI", "XVII", "XVIII", "XIX", "XX", "XXI", "XXII", "XXIII", "XXIV", "XXV", "XXVI", "XXVII", "XXVIII", "XXIX", "XXX", "XXXI", "XXXII", "XXXIII", "XXXIV", "XXXV", "XXXVI", "XXXVII", "XXXVIII", "XXXIX", "XL", "XLI", "XLII", "XLIII", "XLIV", "XLV", "XLVI", "XLVII", "XLVIII", "XLIX", "L"};
for (int i = 1; i <= 50; i++) {
Assertions.assertEquals(expected[i - 1], RomanNumerals.decimalToRoman(i));
}
Assertions.assertEquals("C", RomanNumerals.decimalToRoman(100));
Assertions.assertEquals("CD", RomanNumerals.decimalToRoman(400));
Assertions.assertEquals("D", RomanNumerals.decimalToRoman(500));
Assertions.assertEquals("CM", RomanNumerals.decimalToRoman(900));
Assertions.assertEquals("M", RomanNumerals.decimalToRoman(1000));
Assertions.assertEquals("MCMXCIX", RomanNumerals.decimalToRoman(1999));
}
}
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