Fix tests breaking with Mysqli and DB2

README.md

 # Doctrine DBAL
 
-Master: [![Build Status](https://secure.travis-ci.org/doctrine/dbal.png?branch=master)](http://travis-ci.org/doctrine/dbal)
-2.1.x: [![Build Status](https://secure.travis-ci.org/doctrine/dbal.png?branch=2.1.x)](http://travis-ci.org/doctrine/dbal)
-
 Powerful database abstraction layer with many features for database schema introspection, schema management and PDO abstraction.
 
+* Master: [![Build Status](https://secure.travis-ci.org/doctrine/dbal.png?branch=master)](http://travis-ci.org/doctrine/dbal)
+* Master: [![Build Status](https://secure.travis-ci.org/doctrine/dbal.png?branch=2.2)](http://travis-ci.org/doctrine/dbal)
+* 2.1.x: [![Build Status](https://secure.travis-ci.org/doctrine/dbal.png?branch=2.1.x)](http://travis-ci.org/doctrine/dbal)
+
 ## More resources:
 
 * [Website](http://www.doctrine-project.org)

lib/Doctrine/DBAL/Driver/IBMDB2/DB2Statement.php

@@ -148,7 +148,7 @@ class DB2Statement implements \IteratorAggregate, Statement
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchStyle = \PDO::FETCH_BOTH)
+    public function setFetchMode($fetchStyle = \PDO::FETCH_BOTH, $arg2 = null, $arg3 = null)
     {
         $this->_defaultFetchStyle = $fetchStyle;
     }

lib/Doctrine/DBAL/Driver/Mysqli/MysqliStatement.php

@@ -326,7 +326,7 @@ class MysqliStatement implements \IteratorAggregate, Statement
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode = PDO::FETCH_BOTH)
+    public function setFetchMode($fetchMode = PDO::FETCH_BOTH, $arg2 = null, $arg3 = null)
     {
         $this->_defaultFetchStyle = $fetchMode;
     }