41 lines
876 B
PHP
41 lines
876 B
PHP
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<?php
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declare(strict_types=1);
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use App\RomanNumeralsConverter;
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use Assert\AssertionFailedException;
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it('converts numbers to roman numerals', function (int $number, string $expected): void {
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assertSame($expected, RomanNumeralsConverter::convert($number));
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})->with([
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[1, 'I'],
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[2, 'II'],
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[3, 'III'],
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[4, 'IV'],
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[5, 'V'],
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[9, 'IX'],
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[10, 'X'],
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[15, 'XV'],
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[19, 'XIX'],
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[20, 'XX'],
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[21, 'XXI'],
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[40, 'XL'],
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[50, 'L'],
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[80, 'LXXX'],
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[90, 'XC'],
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[100, 'C'],
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[110, 'CX'],
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[400, 'CD'],
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[500, 'D'],
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[700, 'DCC'],
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[900, 'CM'],
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[1000, 'M'],
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[1986, 'MCMLXXXVI'],
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[1990, 'MCMXC'],
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[2020, 'MMXX'],
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]);
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it('cannot convert negative numbers', function (): void {
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RomanNumeralsConverter::convert(-1);
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})->throws(AssertionFailedException::class, 'Cannot convert negative numbers');
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