gistfile1.txt

This test complains that @controller is nil:

# -*- coding: utf-8 -*-
require 'test_helper'

class Admin::ProductGroupsControllerTest < ActionController::TestCase
  test "should show new product group form" do
    login_with_role 'employee'

    get :new
    assert_select "form input[id=product_group_title]"
    assert_select "form input[id=product_group_artno]"
    assert_select "form input[id=product_group_unit]"
    assert_select "form input[id=product_group_vat]"
  end


Here's the controller:

# encoding: utf-8

require 'spreadsheet'

class Admin::ProductGroupsController < Admin::BaseController
  before_filter :find_product_group, :only => [ 'show', 'edit', 'update', 'destroy', 'preview' ]
  helper_method :sort_column, :sort_direction, :search_parameters
  layout 'admin/product_groups'