new UploadedFile

gistfile1.txt

public function testStorePhoto_Ok () {
        $path = /* path/to/your/file */;
        $filename = /* your/file/name */;
        $mimeType = /* your/file/mime/type  es: 'image/jpeg' */ 
 
        $file = new Symfony\Component\HttpFoundation\File\UploadedFile (
            $path . $filename, 
            $filename,
            $mimeType 
        );

        $this -> call (
            'POST', 
            'api/photo', 
            array(/* your/parameters */), 
            array('photo' => $file)
        );

        $this -> assertResponseOk();
    }