You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: validate_configuration_test.rb
    path of file: ./repos/software-o-o/test/integration
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require File.expand_path('../test_helper', __dir__)

class ValidateConfigurationTest < ActionDispatch::IntegrationTest
  def test_val
    
  def test_validate_configuration
    # Fake that authentication is not configured
    x = Rails.configuration.x.clone
    Rails.configuration.x.api_username = nil
    Rails.configuration.x.opensuse_cookie = nil

    get '/'
    assert_includes body, 'The authentication to the OBS API has not been configured correctly.'
    assert_equal 503, status

    # Restore normal configuration values for other tests
    Rails.configuration.x = x
  end