<?php

declare(strict_types=1);

namespace Tests\Unit;

use PHPUnit\Framework\TestCase;

final class TextSanitizeTest extends TestCase
{
    public function testStripsSqlLikePatterns(): void
    {
        require_once dirname(__DIR__, 2) . '/lib/text_sanitize.php';
        $out = sanitize_free_text("hello'; DROP TABLE users;--");
        $this->assertStringNotContainsString('DROP TABLE', $out);
        $this->assertStringNotContainsString('--', $out);
    }

    public function testPreservesNewlines(): void
    {
        require_once dirname(__DIR__, 2) . '/lib/text_sanitize.php';
        $out = sanitize_free_text("line1\nline2");
        $this->assertStringContainsString("\n", $out);
    }

    public function testNonStringReturnsEmpty(): void
    {
        require_once dirname(__DIR__, 2) . '/lib/text_sanitize.php';
        $this->assertSame('', sanitize_free_text(null));
    }
}