add session test

Author: ylebre

TODO

@@ -66,13 +66,13 @@
 - [v] Util
 - [v] PasswordValidator
 - [v] User
+- [v] Middleware
+- [v] Session
 - [ ] Mailer
 - [ ] MailTemplateGenerator
 - [ ] MailTemplates
 - [ ] Server
 - [ ] StorageServer
-- [-] Session
 - [-] SolidNotifications
 - [-] SolidPubSub
-- [-] Middleware
 - [-] Db

tests/phpunit/SessionTest.php

@@ -0,0 +1,24 @@
+<?php
+    namespace Pdsinterop\PhpSolid;
+
+    use Pdsinterop\PhpSolid\Session;
+
+    function session_start($options=[]) {
+        SessionTest::$sessionOptions = $options;
+    }
+
+    class SessionTest extends \PHPUnit\Framework\TestCase
+    {
+        public static $sessionOptions = [];
+        public function testStart() {
+            Session::start("alice");
+            $this->assertEquals($_SESSION['username'], "alice");
+            $this->assertEquals(self::$sessionOptions, ['cookie_lifetime' => 86400]);
+        }
+
+        public function testGetLoggedInUser() {
+            Session::start("alice");
+            $user = Session::getLoggedInUser();
+            $this->assertEquals($user, "alice");
+        }
+    }