Mutagenesis\Mutable::getFilename PHP 메소드

    public function getFilename()
    {
        return $this->_filename;
    }

 /**
  * @test
  */
 public function shouldMaintainFilePathInfoOncePassedInConstructor()
 {
     $file = new Mutable($this->root . '/foo.php');
     $this->assertEquals($this->root . '/foo.php', $file->getFilename());
 }