Add unit tests for SessionManager

tests/Socialbox/Managers/SessionManagerTest.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace Socialbox\Managers;
+
+use InvalidArgumentException;
+use PHPUnit\Framework\TestCase;
+use Socialbox\Classes\Cryptography;
+use Socialbox\Classes\Utilities;
+use Socialbox\Exceptions\DatabaseOperationException;
+use Socialbox\Objects\SessionRecord;
+
+class SessionManagerTest extends TestCase
+{
+    public function testCreateSessionWithEmptyPublicKey(): void
+    {
+        $publicKey = '';
+
+        $this->expectException(InvalidArgumentException::class);
+        SessionManager::createSession($publicKey);
+    }
+
+    public function testCreateSession(): void
+    {
+        $keyPair = Cryptography::generateKeyPair();
+        $uuid = SessionManager::createSession($keyPair->getPublicKey());
+
+        $this->assertTrue(SessionManager::sessionExists($uuid));
+    }
+
+    public function testGetSessionWithInvalidUuid(): void
+    {
+        $uuid = 'invalid_uuid';
+
+        $this->expectException(DatabaseOperationException::class);
+        SessionManager::getSession($uuid);
+    }
+
+    public function testGetSessionWithValidUuid(): void
+    {
+        $keyPair = Cryptography::generateKeyPair();
+        $uuid = SessionManager::createSession($keyPair->getPublicKey());
+
+        $session = SessionManager::getSession($uuid);
+
+        $this->assertInstanceOf(SessionRecord::class, $session);
+        $this->assertEquals($uuid, $session->getUuid());
+        $this->assertEquals($keyPair->getPublicKey(), Utilities::base64encode($session->getPublicKey()));
+    }
+}