What if all class methods were placed in a module?

class_methods_in_module_spec.rb

class Client
  module ClassMethods
    def self.extended(klass)
      klass.url = 'http://example.com/whatever'
    end

    attr_accessor :url
  end
  
  extend ClassMethods
  
  # instance methods go here
end


describe Client do
  let(:client_class) { Class.new.extend Client::ClassMethods }
  
  it 'is a subclass of ClientClassMethods' do
    Client.should be_a_kind_of Client::ClassMethods
  end
  
  it 'has a default url of example.com/whatever' do
    client_class.url.should == "http://example.com/whatever"
  end
  
  it 'can configure its url to a new value' do
    client_class.url = "http://example.com/new_url"
    client_class.url.should == "http://example.com/new_url"
  end
end