public function testMoveUploadedFile()
{
$storage = new FileStorage('somewhere');
self::$functions->expects($this->at(0))->method('is_dir')->with($this->equalTo('somewhere'))->will($this->returnValue(true));
self::$functions->expects($this->at(1))->method('move_uploaded_file')->with($this->equalTo('src_file'), $this->equalTo('somewhere' . DIRECTORY_SEPARATOR . 'mykey'))->will($this->returnValue(true));
$this->assertTrue($storage->moveUploadedFile('src_file', 'mykey'));
}