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breadcrumb-the-shire/tests/Unit/Support/CryptoTest.php

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2026-03-19 19:36:17 +01:00
<?php
namespace MintyPHP\Tests\Unit\Support;
use MintyPHP\Support\Crypto;
use PHPUnit\Framework\TestCase;
final class CryptoTest extends TestCase
{
protected function setUp(): void
{
if (!defined('APP_CRYPTO_KEY')) {
define('APP_CRYPTO_KEY', str_repeat('ab', 32));
}
}
public function testIsConfiguredReturnsTrueWhenKeyIsSet(): void
{
self::assertTrue(Crypto::isConfigured());
}
public function testEncryptDecryptRoundTrip(): void
{
$plaintext = 'client-secret-for-sso';
$encrypted = Crypto::encryptString($plaintext);
self::assertNotSame($plaintext, $encrypted);
self::assertSame($plaintext, Crypto::decryptString($encrypted));
}
public function testEncryptProducesDifferentCiphertextEachTime(): void
{
$plaintext = 'same-settings-value';
self::assertNotSame(
Crypto::encryptString($plaintext),
Crypto::encryptString($plaintext)
);
}
public function testDecryptThrowsOnInvalidOrTamperedPayload(): void
{
$encrypted = Crypto::encryptString('secret');
$tampered = substr($encrypted, 0, 5) . 'Z' . substr($encrypted, 6);
try {
Crypto::decryptString('garbage-data');
self::fail('Expected invalid payload to throw.');
} catch (\RuntimeException) {
}
try {
Crypto::decryptString(base64_encode('{}'));
self::fail('Expected malformed payload to throw.');
} catch (\RuntimeException) {
}
$this->expectException(\RuntimeException::class);
Crypto::decryptString($tampered);
}
public function testEncryptEmptyStringProducesMalformedPayloadOnDecrypt(): void
{
$encrypted = Crypto::encryptString('');
$this->expectException(\RuntimeException::class);
$this->expectExceptionMessage('malformed');
Crypto::decryptString($encrypted);
}
}