endtoend-test-psl/tests/Psl/Str/LevenshteinTest.php

<?php

declare(strict_types=1);

namespace Psl\Tests\Str;

use PHPUnit\Framework\TestCase;
use Psl\Str;

class LevenshteinTest extends TestCase
{
    /**
     * @dataProvider provideData
     */
    public function testLevenshtein(
        int $expected,
        string $a,
        string $b,
        ?int $coi = null,
        ?int $cor = null,
        ?int $cod = null
    ): void {
        self::assertSame($expected, Str\levenshtein($a, $b, $coi, $cor, $cod));
    }

    public function provideData(): array
    {
        return [
            [0, 'o', 'o'],
            [1, 'foo', 'oo'],
            [1, 'oo', 'foo'],
            [6, 'saif', 'azjezz'],
            [48, 'saif', 'azjezz', 9, 8, 5]
        ];
    }
}