block7.go

package user
import "context"

// helper defines helper functions that are used in this package.
type helper interface {
  doSomething(ctx context.Context) error
}

type helperDefault struct {}

func (h *defaultHelper) doSomething(ctx context.Context) error {
  ...
  return nil
}

type helperMock struct {}

// doSomething - mock of `doSomething` method.
func (h *helperMock) doSomething(ctx context.Context) error {
  ...
  return nil
}