I have a third party API that I'd like to mock with FakeWeb, but I was
hoping FakeWeb could generate the mocked responses for me the first
time around. What I want would be something like this:

    # Setup some type of caching for the request responses, for
example:
    CACHE = ActiveSupport::Cache::FileStore.new "test/fixtures/api/"

    # If passed a block, yields the method, normalized uri, and
    # Net::Http request object
    FakeWeb.register_uri(:all, /.*/) do |method, uri, request|
      CACHE.fetch(uri) do
         # Forces a real request through by temporarily allowing a net
request
        FakeWeb.force(request)
      end
    end

This way I could easily generate the right mock responses for the
requests I make, and then manually tweak them in the "fixture" or
cache file.

Has anyone done something like this already? I'd like to implement
this but want a second opinion since I'm new to this gem.