appwrite/tests/unit/Network/Validators/DNSTest.php

<?php

namespace Tests\Unit\Network\Validators;

use Appwrite\Network\Validator\DNS;
use PHPUnit\Framework\TestCase;

class DNSTest extends TestCase
{
    public function setUp(): void
    {

    }

    public function tearDown(): void
    {
    }

    public function testCNAME(): void
    {
        $validator = new DNS('appwrite.io', DNS::RECORD_CNAME);
        $this->assertEquals($validator->isValid(''), false);
        $this->assertEquals($validator->isValid(null), false);
        $this->assertEquals($validator->isValid(false), false);
        $this->assertEquals($validator->isValid('cname-unit-test.appwrite.org'), true);
        $this->assertEquals($validator->isValid('test1.appwrite.org'), false);
    }

    public function testA(): void
    {
        // IPv4 for documentation purposes
        $validator = new DNS('203.0.113.1', DNS::RECORD_A);
        $this->assertEquals($validator->isValid(''), false);
        $this->assertEquals($validator->isValid(null), false);
        $this->assertEquals($validator->isValid(false), false);
        $this->assertEquals($validator->isValid('a-unit-test.appwrite.org'), true);
        $this->assertEquals($validator->isValid('test1.appwrite.org'), false);
    }

    public function testAAAA(): void
    {
        // IPv6 for documentation purposes
        $validator = new DNS('2001:db8::1', DNS::RECORD_AAAA);
        $this->assertEquals($validator->isValid(''), false);
        $this->assertEquals($validator->isValid(null), false);
        $this->assertEquals($validator->isValid(false), false);
        $this->assertEquals($validator->isValid('aaaa-unit-test.appwrite.org'), true);
        $this->assertEquals($validator->isValid('test1.appwrite.org'), false);
    }

    public function testCAA(): void
    {
        $validator = new DNS('0 issue "pki.goog"', DNS::RECORD_CAA);

        $this->assertEquals($validator->isValid(''), false);
        $this->assertEquals($validator->isValid(null), false);
        $this->assertEquals($validator->isValid(false), false);

        $result = $validator->isValid('google.com');
        if ($result === false) {
            $logs = $validator->getLogs();
            if (isset($logs['error']) && strpos($logs['error'], 'Failed to receive data') !== false) {
                $this->markTestSkipped('DNS resolution not available in test environment: ' . $logs['error']);
            }
        }
        $this->assertEquals($result, true);

        $this->assertEquals($validator->isValid('test1.appwrite.org'), false);

        $validator2 = new DNS('0 issue "letsencrypt.org"', DNS::RECORD_CAA);
        $this->assertEquals($validator2->isValid('test2.appwrite.org'), false);
    }
}