使用相对路径上传文件

Is it possible to upload file during test using behat and Selenium2 with relative path? I am doing it like this in my Page Class:

 $element = $this->getElement('Upload file');
 $element->attachFile('full_path_to_file');

When I am using full path it works just fine, but it doesn't work with relative path. Can I somehow configure it in behat.yaml?

Let's say your current working directory is

C:\Programs\php\directory

and the file you want to upload is in:

C:\Programs\php\directory\images\image.png

Then you can use getcwd() like this:

$element = $this->getElement('Upload file');
$element -> attachFile(getcwd() . '\images\image.png');