mocking - PHPUnit: Pass mock object as method parameter -


say have following class:

class document {   private file;    public function setfile(uploadedfile $file)   {     $this->file = $file;   }    public function getext()   {     return $this->file->guessextension();   } }

i'd test getext() method. tried set test follows:

$file = $this->getmock('uploadedfile');  $file->expects($this->at(0))   ->method('guessextension')   ->will($this->returnvalue('png'));  $doc = new document(); $doc->setfile($file); ...

however, giving me error saying setfile() expecting instance of uploadedfile , mock object found instead. can shed light on how test kind of scenario? beginner when comes testing mocks , stubs.

thanks!

thanks fab's comment. made following change , got working,

$file = $this->getmockbuilder('symfony\component\httpfoundation\file\uploadedfile')         ->disableoriginalconstructor()         ->getmock();

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