coruna-lab/tests/Unit/CorunaCryptoTest.php

<?php

namespace Tests\Unit;

use App\Services\CorunaCrypto;
use PHPUnit\Framework\Attributes\Test;
use Tests\TestCase;

class CorunaCryptoTest extends TestCase
{
    #[Test]
    public function session_key_matches_python_vector(): void
    {
        $crypto = new CorunaCrypto;

        $this->assertSame('d2dbe79fbd3f94d09c16a4958b78d1d3', $crypto->deriveArchivePassword(0));
        $this->assertSame('7@Lb"`W5_7gXN;68', $crypto->sessionKey());
        $this->assertSame(
            '9bcc53d7b7523451c4cc2923205575087e6ed47c9fd733be68b76a31ef1be1e4',
            hash('sha256', $crypto->sessionKey())
        );
    }

    #[Test]
    public function encrypt_decrypt_round_trip(): void
    {
        $crypto = new CorunaCrypto;
        $payload = ['id' => 'lab-device', 'pn' => 'io.metamask', 'apps' => ['io.metamask']];
        $ts = '1722585600000';
        $enc = $crypto->encryptJson($payload, $ts);

        $this->assertSame($ts, $enc['timestamp']);
        $this->assertSame($payload, $crypto->decryptJsonBody($enc['body'], $enc['timestamp']));
    }

    #[Test]
    public function null_payload_round_trip(): void
    {
        $crypto = new CorunaCrypto;
        $enc = $crypto->encryptJson(null, '1722585600001');
        $this->assertNull($crypto->decryptJsonBody($enc['body'], $enc['timestamp']));
    }

    #[Test]
    public function archive_password_appends_batch_base(): void
    {
        $crypto = new CorunaCrypto;
        $this->assertSame($crypto->sessionKey().'0', $crypto->archivePassword('0'));
        $this->assertSame($crypto->sessionKey().'1722585600000', $crypto->archivePassword('1722585600000'));
    }
}