Access private fields of a package in golang using reflect

Question

I am writing a unit test for a package in golang. I need to create a variable of private field type which resides in a different package to pass it as a parameter to the function that I am testing.

package : go/abc/a.go

type newType int

package : go/edf/b.go

import "go/abc"

func init(abc newType){
  // ommitted for brevity 
}

Now I am writing unit test for b.go say

package : go/edf/b_test.go

func TestInit(){
// Now I need to create a variable of private field type newType in abc package
// for passing as parameter to the init function....   
}

Is it possible to achieve this using reflect or packages package in golang

Answer 1

I need to access a private field in a package

You cannot do this. The sole purpose of being unexported (what you call private) is to be inaccessable from outside.