Testing file upload

Hello, I’m trying to make a unit test to a model, that has a file validation rule (for example: array(‘pdfFile’, ‘file’, ‘types’=>‘pdf’)).

Is there a way to upload a file only from code, i mean without an file field, for getting the the model validate?

The assert that I’m trying to run is just this, but I must have the file upload.

$this->assertTrue($upload->validate());

Thanks

Did you find a solution?