test/nil/nil_test.go

package nil_test

import (
	"fmt"
	"testing"
)

type Interface interface {
	String() string
}

type Struct struct {
	sval string
}

func (me *Struct) String() string {
	if me == nil {
		return "nil"
	}
	return me.sval
}

func TestAll(t *testing.T) {

	var n Interface

	var x *Struct

	func() {
		defer func() {
			x := recover()
			if x != nil {
				println(fmt.Sprint(x))
			}
		}()
		x = n.(*Struct)
	}()

	fmt.Println(x.String())
}