70 lines
2.3 KiB
Dart
70 lines
2.3 KiB
Dart
import 'package:tdd_katas/roman_numerals.dart';
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import 'package:test/test.dart';
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void main() {
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group('Roman Numerals Conversion', () {
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group('Basic Symbols', () {
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test('smallest unit', () => expect(integerToRoman(1), 'I'));
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test('five', () => expect(integerToRoman(5), 'V'));
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test('ten', () => expect(integerToRoman(10), 'X'));
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test('fifty', () => expect(integerToRoman(50), 'L'));
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test('hundred', () => expect(integerToRoman(100), 'C'));
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test('five hundred', () => expect(integerToRoman(500), 'D'));
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test('thousand', () => expect(integerToRoman(1000), 'M'));
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});
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group('Subtractive Notation', () {
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test('four (one before five)', () => expect(integerToRoman(4), 'IV'));
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test('nine (one before ten)', () => expect(integerToRoman(9), 'IX'));
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test('forty (ten before fifty)', () => expect(integerToRoman(40), 'XL'));
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test(
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'ninety (ten before hundred)',
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() => expect(integerToRoman(90), 'XC'),
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);
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test(
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'four hundred (hundred before five hundred)',
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() => expect(integerToRoman(400), 'CD'),
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);
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test(
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'nine hundred (hundred before thousand)',
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() => expect(integerToRoman(900), 'CM'),
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);
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});
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group('Additive Combinations', () {
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test('two (repeated symbol)', () => expect(integerToRoman(2), 'II'));
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test(
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'three (maximum repetition)',
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() => expect(integerToRoman(3), 'III'),
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);
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test('six (additive after five)', () => expect(integerToRoman(6), 'VI'));
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test(
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'twenty-seven (multiple symbols)',
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() => expect(integerToRoman(27), 'XXVII'),
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);
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});
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group('Complex Edge Cases', () {
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test(
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'forty-nine (combines subtractive symbols)',
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() => expect(integerToRoman(49), 'XLIX'),
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);
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test(
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'ninety-nine (maximum two-digit complexity)',
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() => expect(integerToRoman(99), 'XCIX'),
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);
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test(
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'four hundred forty-four (all subtractive positions)',
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() => expect(integerToRoman(444), 'CDXLIV'),
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);
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test(
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'1994 (year notation stress test)',
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() => expect(integerToRoman(1994), 'MCMXCIV'),
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);
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test(
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'3999 (maximum valid Roman numeral)',
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() => expect(integerToRoman(3999), 'MMMCMXCIX'),
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);
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});
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});
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}
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