N°2651 rollback gitignore for lib tests dirs

Too dangerous ! We'll work properly on this but for 2.8

lib/symfony/cache/Tests/Simple/PdoCacheTest.php

@@ -0,0 +1,47 @@
+<?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\Component\Cache\Tests\Simple;
+
+use Symfony\Component\Cache\Simple\PdoCache;
+use Symfony\Component\Cache\Tests\Traits\PdoPruneableTrait;
+
+/**
+ * @group time-sensitive
+ */
+class PdoCacheTest extends CacheTestCase
+{
+    use PdoPruneableTrait;
+
+    protected static $dbFile;
+
+    public static function setUpBeforeClass()
+    {
+        if (!\extension_loaded('pdo_sqlite')) {
+            self::markTestSkipped('Extension pdo_sqlite required.');
+        }
+
+        self::$dbFile = tempnam(sys_get_temp_dir(), 'sf_sqlite_cache');
+
+        $pool = new PdoCache('sqlite:'.self::$dbFile);
+        $pool->createTable();
+    }
+
+    public static function tearDownAfterClass()
+    {
+        @unlink(self::$dbFile);
+    }
+
+    public function createSimpleCache($defaultLifetime = 0)
+    {
+        return new PdoCache('sqlite:'.self::$dbFile, 'ns', $defaultLifetime);
+    }
+}