VCR matcher for forms

vcr_form_matcher.rb

VCR.configure do |c|
  # Match the content of urlencoded forms instead of their encoded version.
  # This is to address issues with different ordering of the same information.
  c.register_request_matcher :form do |actual, match|
    content_type = actual.headers["Content-Type"]

    # Only valid for forms
    if content_type.include?("application/x-www-form-urlencoded")
      actual_form = Rack::Utils.parse_nested_query(actual.body)
      match_form  = Rack::Utils.parse_nested_query(match.body)

      actual_form == match_form
    else
      false
    end
  end
end