public function test_Grab_Vars() { $demo = new Demo(); $this->assertEquals(array("key", "value"), $demo->_fizz_fields()); $demo->test = ""; $this->assertEquals(array("key", "value", "test"), $demo->_fizz_fields()); unset($demo->test); $this->assertEquals(array("key", "value"), $demo->_fizz_fields()); }