[Session] Add Test for PDO Session Storage with SQLite in Memory DB.

tests/Symfony/Tests/Component/HttpFoundation/SessionStorage/PdoSessionStorageTest.php

@@ -0,0 +1,60 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Tests\Component\HttpFoundation\SessionStorage;
+
+use Symfony\Component\HttpFoundation\SessionStorage\PdoSessionStorage;
+
+class PdoSessionStorageTest extends \PHPUnit_Framework_TestCase
+{
+    private $pdo;
+
+    protected function setUp()
+    {
+        $this->pdo = new \PDO("sqlite::memory:");
+        $sql = "CREATE TABLE sessions (sess_id VARCHAR(255) PRIMARY KEY, sess_data TEXT, sess_time INTEGER)";
+        $this->pdo->exec($sql);
+    }
+
+    public function testMultipleInstances()
+    {
+        $storage1 = new PdoSessionStorage($this->pdo, array(), array('db_table' => 'sessions'));
+        $storage1->sessionWrite('foo', 'bar');
+
+        $storage2 = new PdoSessionStorage($this->pdo, array(), array('db_table' => 'sessions'));
+        $this->assertEquals('bar', $storage2->sessionRead('foo'), 'values persist between instances');
+    }
+
+    public function testSessionDestroy()
+    {
+        $storage = new PdoSessionStorage($this->pdo, array(), array('db_table' => 'sessions'));
+        $storage->sessionWrite('foo', 'bar');
+        $this->assertEquals(1, count($this->pdo->query('SELECT * FROM sessions')->fetchAll()));
+
+        $storage->sessionDestroy('foo');
+
+        $this->assertEquals(0, count($this->pdo->query('SELECT * FROM sessions')->fetchAll()));
+    }
+
+    public function testSessionGC()
+    {
+        $storage = new PdoSessionStorage($this->pdo, array(), array('db_table' => 'sessions'));
+
+        $storage->sessionWrite('foo', 'bar');
+        $storage->sessionWrite('baz', 'bar');
+
+        $this->assertEquals(2, count($this->pdo->query('SELECT * FROM sessions')->fetchAll()));
+
+        $storage->sessionGC(-1);
+        $this->assertEquals(0, count($this->pdo->query('SELECT * FROM sessions')->fetchAll()));
+    }
+}
+