add working home controller test and login_helper

spec/support/spec_test_helper.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+# spec/support/spec_test_helper.rb
+module SpecTestHelper
+  def login_admin
+    login(:admin)
+  end
+
+  def login(user)
+    user = User.where(:nick => user.nick).first if user.is_a?(Symbol)
+    session[:user_id] = user.id
+    session[:scope] = FoodsoftConfig[:default_scope] # Save scope in session to not allow switching between foodcoops with one account
+    session[:locale] = user.locale
+  end
+
+
+  def current_user
+    User.find(session[:user_id])
+  end
+end
+
+# spec/spec_helper.rb
+RSpec.configure do |config|
+  config.include SpecTestHelper, :type => :controller
+end