testing errors

http_errors.go

package main

import (
	"errors"
	"fmt"
)

type HttpError struct {
	code int
	error
}

func main() {
	testErrors()
}

func testErrors() (err error) {
	err = errors.New("new error")

	if err != nil {
		fmt.Println(err)

		hErr := HttpError{
			code:  201,
			error: err,
		}
		fmt.Println(hErr)

		err = hErr
		fmt.Println(err)
		fmt.Println(err == hErr)
	}
	return
}