Fixed naming

extension/Tests/unit/core/database/AbstractDatabaseTest.php

@@ -104,7 +104,7 @@ abstract class AbstractDatabaseTest extends TestCase {
             self::$mysqli = new \mysqli($dbserver, $dbuser, $dbpw, $db);
 
             if (self::$mysqli->connect_errno) {
-                throw new Exception("Unable to connect to mysql server");
+                throw new \Exception("Unable to connect to mysql server");
             }
         }