# File lib/typhoeus.rb, line 90
  def self.stub(base_url, options = {}, &block)
    expectation = Expectation.all.find{ |e| e.base_url == base_url && e.options == options }
    if expectation.nil?
      expectation = Expectation.new(base_url, options)
      Expectation.all << expectation
    end

    expectation.and_return(&block) unless block.nil?
    expectation
  end