Add home controller test

Co-authored-by: viehlieb <pf@pragma-shift.net>
Co-authored-by: Tobias Kneuker <tk@pragma-shift.net>

spec/support/spec_test_helper.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module SpecTestHelper
+  def login(user)
+    user = User.find_by_nick(user.nick)
+    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
+
+  def get_with_defaults(action, params: {}, xhr: false, format: nil)
+    params['foodcoop'] = FoodsoftConfig[:default_scope]
+    get action, params: params, xhr: xhr, format: format
+  end
+end
+
+RSpec.configure do |config|
+  config.include SpecTestHelper, type: :controller
+end