Instrument request.active_resource with Net::HTTPRequest instance

This commit exposes the underlying [Net::HTTPRequest][] instance to the
published `request.active_resource` Active Support notification payload.

[rails#449]: rails#449
[Net::HTTPRequest]: https://docs.ruby-lang.org/en/master/Net/HTTPRequest.html

Author: seanpdoyle

README.md

@@ -342,11 +342,12 @@ ActiveSupport::Notifications.subscribe('request.active_resource')  do |name, sta
 
 The `payload` is a `Hash` with the following keys:
 
+* `request` as a [Net::HTTPRequest](https://docs.ruby-lang.org/en/master/Net/HTTPRequest.html)
 * `method` as a `Symbol`
 * `request_uri` as a `String`
 * `headers` as a `Hash`
 * `body` as a `String` when available
-* `result` as an `Net::HTTPResponse`
+* `result` as a [Net::HTTPResponse](https://docs.ruby-lang.org/en/master/Net/HTTPResponse.html)
 
 ## License
 

lib/active_resource/connection.rb

@@ -133,6 +133,7 @@ def request(method, path, *arguments)
           payload[:request_uri] = request.uri.to_s
           payload[:headers]     = request.each_capitalized.to_h
           payload[:body]        = body
+          payload[:request]     = request
           payload[:result]      = http.request(request)
         end
         handle_response(result)

test/cases/notifications_test.rb

@@ -21,6 +21,7 @@ def test_get_request_with_params
     assert_equal "http://37s.sunrise.i:3000/people.json?name=Matz", payload[:request_uri]
     assert_equal({ "Accept" => "application/json" }, payload[:headers])
     assert_nil payload[:body]
+    assert_kind_of Net::HTTP::Get, payload[:request]
     assert_kind_of ActiveResource::Response, payload[:result]
   end
 
@@ -31,6 +32,7 @@ def test_post_request_with_body
     assert_equal "http://37s.sunrise.i:3000/people.json", payload[:request_uri]
     assert_equal({ "Content-Type" => "application/json" }, payload[:headers])
     assert_equal({ "person" => { "name" => "Matz" } }.to_json, payload[:body])
+    assert_kind_of Net::HTTP::Post, payload[:request]
     assert_kind_of ActiveResource::Response, payload[:result]
   end