Gc\Core\Object::unsetData PHP Method

    public function unsetData($key = null)
    {
        if (is_null($key)) {
            $this->data = array();
        } else {
            unset($this->data[$key]);
        }
        return $this;
    }

 /**
  * Test
  *
  * @return void
  */
 public function testUnsetAllData()
 {
     $this->object->setData('k', 'v');
     $this->object->unsetData();
     $this->assertNull($this->object->getData('k'));
 }