support PATCH and OPTIONS methods

Added a `patch` helper method, but OPTIONS requests need to be done manually.

lib/faraday/adapter/patron.rb

@@ -12,11 +12,8 @@ module Faraday
         session = ::Patron::Session.new
 
         response = begin
-          if Connection::METHODS_WITH_BODIES.include? env[:method]
-            session.send(env[:method], env[:url].to_s, env[:body].to_s, env[:request_headers])
-          else
-            session.send(env[:method], env[:url].to_s, env[:request_headers])
-          end
+          data = Connection::METHODS_WITH_BODIES.include?(env[:method]) ? env[:body].to_s : nil
+          session.request(env[:method], env[:url].to_s, env[:request_headers], :data => data)
         rescue Errno::ECONNREFUSED
           raise Error::ConnectionFailed, $!
         end
@@ -26,5 +23,11 @@ module Faraday
         @app.call env
       end
     end
+
+    # HAX: helps but doesn't work completely
+    # https://github.com/toland/patron/issues/34
+    valid_actions = ::Patron::Request::VALID_ACTIONS
+    valid_actions << :patch unless valid_actions.include? :patch
+    valid_actions << :options unless valid_actions.include? :options
   end
 end

lib/faraday/connection.rb

@@ -6,8 +6,8 @@ module Faraday
   class Connection
     include Addressable
 
-    METHODS = Set.new [:get, :post, :put, :delete, :head]
-    METHODS_WITH_BODIES = Set.new [:post, :put]
+    METHODS = Set.new [:get, :post, :put, :delete, :head, :patch, :options]
+    METHODS_WITH_BODIES = Set.new [:post, :put, :patch, :options]
 
     attr_accessor :host, :port, :scheme, :params, :headers, :parallel_manager
     attr_reader   :path_prefix, :builder, :options, :ssl
@@ -76,6 +76,11 @@ module Faraday
       run_request(:put, url, body, headers, &block)
     end
 
+    def patch(url = nil, body = nil, headers = nil)
+      block = block_given? ? Proc.new : nil
+      run_request(:patch, url, body, headers, &block)
+    end
+
     def head(url = nil, headers = nil)
       block = block_given? ? Proc.new : nil
       run_request(:head, url, nil, headers, &block)

test/adapters/live_test.rb

@@ -67,8 +67,8 @@ else
           assert_equal "file live_test.rb text/x-ruby", resp.body
         end unless :default == adapter # isn't configured for multipart
 
-        # http://github.com/toland/patron/issues/#issue/9
-        if ENV['FORCE'] || adapter != Faraday::Adapter::Patron
+        # https://github.com/toland/patron/issues/9
+        if ENV['FORCE'] || %[Faraday::Adapter::Patron] != adapter.to_s
           define_method "test_#{adapter}_PUT_send_url_encoded_params" do
             resp = create_connection(adapter).put do |req|
               req.url 'echo_name'
@@ -90,6 +90,21 @@ else
           end
         end
 
+        # https://github.com/toland/patron/issues/34
+        unless %w[Faraday::Adapter::Patron Faraday::Adapter::EMSynchrony].include? adapter.to_s
+          define_method "test_#{adapter}_PATCH_send_url_encoded_params" do
+            resp = create_connection(adapter).patch('echo_name', 'name' => 'zack')
+            assert_equal %("zack"), resp.body
+          end
+        end
+
+        unless %[Faraday::Adapter::EMSynchrony] == adapter.to_s
+          define_method "test_#{adapter}_OPTIONS" do
+            resp = create_connection(adapter).run_request(:options, '/options', nil, {})
+            assert_equal "hi", resp.body
+          end
+        end
+
         define_method "test_#{adapter}_HEAD_send_url_encoded_params" do
           resp = create_connection(adapter).head do |req|
             req.url 'hello', 'name' => 'zack'

test/live_server.rb

@@ -20,18 +20,22 @@ post '/file' do
   end
 end
 
-%w[get post].each do |method|
+[:get, :post].each do |method|
   send(method, '/hello') do
     "hello #{params[:name]}"
   end
 end
 
-%w[post put].each do |method|
-  send(method, '/echo_name') do
+%w[POST PUT PATCH].each do |http_method|
+  settings.send(:route, http_method, '/echo_name') do
     params[:name].inspect
   end
 end
 
+options '/options' do
+  'hi'
+end
+
 delete '/delete_with_json' do
   %/{"deleted":true}/
 end