WC_Order::set_payment_method_title PHP Method

    public function set_payment_method_title($value)
    {
        $this->set_prop('payment_method_title', $value);
    }

 /**
  * Test: get_payment_method_title
  */
 function test_get_payment_method_title()
 {
     $object = new WC_Order();
     $set_to = 'PayPal';
     $object->set_payment_method_title($set_to);
     $this->assertEquals($set_to, $object->get_payment_method_title());
 }