user_spec.rb

describe "users by activity" do

  before do
    # usar factory ou fixtures 
    # para criar users populares
    # nessa linha, ex:
    # @popular   = Factory.create :popular_user
    # @normal    = Factory.create :user
    # @abandoned = Factory.create :abandoned_user
    
    @users = User.by_activity
  end
  
  it "returns a list with users" do 
    @users.should_not be_empty
  end
  
  it 'returns users sorted by activity' do
    @users.should == [@popular, @normal, @abandoned]
  end

end