Add test for admin info

test/functional/admin_controller_test.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+require File.expand_path '../../test_helper', __FILE__
+
+class AdminControllerTest < Additionals::ControllerTest
+  fixtures :users, :email_addresses, :roles
+
+  def setup
+    User.current = nil
+    @request.session[:user_id] = 1
+  end
+
+  def test_info
+    get :info
+    assert_response :success
+    assert_select 'table.list tr.system_info'
+  end
+end