WP-LIT-MCP/tests/Unit/Integrations/Divi/Design/FontSuggestTest.php

<?php

declare(strict_types=1);

namespace LIT\MCP\Tests\Unit\Integrations\Divi\Design;

use LIT\MCP\Integrations\Divi\Design\FontSuggest;
use PHPUnit\Framework\TestCase;

final class FontSuggestTest extends TestCase
{
    private const NAMES = [
        'Roboto', 'Roboto Condensed', 'Roboto Slab', 'Open Sans', 'Open Sans Condensed', 'Lato', 'Lora', 'Arial',
        'Source Sans 3', 'Playfair Display', 'Helvetica', 'Georgia',
    ];

    public function testTheSameNameInAnotherCaseComesFirst(): void
    {
        self::assertSame(
            ['Open Sans', 'Open Sans Condensed'],
            FontSuggest::similar('open sans', self::NAMES, 2)
        );
        self::assertSame('Lato', FontSuggest::similar('LATO', self::NAMES)[0]);
    }

    public function testRanksPrefixBeforeSubstringBeforeASmallDistance(): void
    {
        $names = ['Big Roboto', 'Rubik', 'Roboto Slab', 'Roboot', 'Robot'];

        self::assertSame(
            ['Roboto Slab', 'Big Roboto', 'Robot', 'Roboot'],
            FontSuggest::similar('roboto', $names)
        );
    }

    public function testATypoIsFoundByDistanceButUnrelatedNamesAreNot(): void
    {
        self::assertSame(['Open Sans'], FontSuggest::similar('Opne Sans', self::NAMES));
        self::assertSame(['Playfair Display'], FontSuggest::similar('Playfair Displey', self::NAMES));
        self::assertSame([], FontSuggest::similar('Comic Sans', ['Arial', 'Georgia', 'Helvetica']));
    }

    public function testTheLimitCutsTheListAndTheOrderIsStable(): void
    {
        $first = FontSuggest::similar('Roboto', self::NAMES, 2);

        self::assertSame(['Roboto', 'Roboto Slab'], $first);
        self::assertSame($first, FontSuggest::similar('Roboto', array_reverse(self::NAMES), 2));
        self::assertSame(['Roboto', 'Roboto Slab', 'Roboto Condensed'], FontSuggest::similar('Roboto', self::NAMES, 5));
        self::assertCount(5, FontSuggest::similar('o', self::NAMES));
    }

    public function testTiesAreBrokenByLengthThenAlphabet(): void
    {
        self::assertSame(['Aab', 'Aac', 'Aaaa'], FontSuggest::similar('aa', ['Aaaa', 'Aac', 'Aab']));
    }

    public function testEdgeCases(): void
    {
        self::assertSame([], FontSuggest::similar('', self::NAMES));
        self::assertSame([], FontSuggest::similar('   ', self::NAMES));
        self::assertSame([], FontSuggest::similar('Lato', self::NAMES, 0));
        self::assertSame([], FontSuggest::similar('Lato', []));
        self::assertSame(['Lato'], FontSuggest::similar(' lato ', ['Lato', 'Lato']), 'trimmed, duplicates once');
        self::assertSame(['Fjalla Önö'], FontSuggest::similar('FJALLA ÖNÖ', ['Fjalla Önö']));
    }
}