public function testWrapper()
{
$test = $this;
$wrapper = function ($mountPoint, $storage) use(&$test) {
$test->assertEquals('/foo/', $mountPoint);
$test->assertInstanceOf('\\OC\\Files\\Storage\\Storage', $storage);
return new Wrapper(array('storage' => $storage));
};
$loader = new Loader();
$loader->addStorageWrapper('test_wrapper', $wrapper);
$storage = $this->getMockBuilder('\\OC\\Files\\Storage\\Temporary')->disableOriginalConstructor()->getMock();
$mount = new \OC\Files\Mount\Mount($storage, '/foo', array(), $loader);
$this->assertInstanceOf('\\OC\\Files\\Storage\\Wrapper\\Wrapper', $mount->getStorage());
}