add basic NetHttp adapter with GET support. supply sinatra server for testing

lib/faraday.rb

@@ -8,4 +8,11 @@ module Faraday
   end
 
   autoload :Connection, 'faraday/connection'
+
+  class Response < Struct.new(:headers, :body)
+  end
+
+  module Adapter
+    autoload :NetHttp, 'faraday/adapter/net_http'
+  end
 end

lib/faraday/adapter/net_http.rb

@@ -0,0 +1,16 @@
+require 'net/http'
+module Faraday
+  module Adapter
+    module NetHttp
+      def _get(uri, request_headers)
+        http = Net::HTTP.new(uri.host, uri.port)
+        resp = http.get(uri.path, request_headers)
+        headers = {}
+        resp.each_header do |key, value|
+          headers[key] = value
+        end
+        Faraday::Response.new(headers, resp.body)
+      end
+    end
+  end
+end

test/adapter/net_http_test.rb

@@ -0,0 +1,18 @@
+require File.expand_path(File.join(File.dirname(__FILE__), '..', 'helper'))
+
+class NetHttpAdapterTest < Faraday::TestCase
+  class Connection < Faraday::Connection
+    include Faraday::Adapter::NetHttp
+  end
+  Faraday::Connection.send :include, Faraday::Adapter::NetHttp
+
+  describe "#get" do
+    it "retrieves the response body" do
+      assert_equal 'hello world', Faraday::Connection.new(LIVE_SERVER).get('hello_world').body
+    end
+
+    it "retrieves the response headers" do
+      assert_equal 'text/html', Faraday::Connection.new(LIVE_SERVER).get('hello_world').headers['content-type']
+    end
+  end
+end

test/helper.rb

@@ -7,6 +7,8 @@ require 'faraday'
 
 module Faraday
   class TestCase < Test::Unit::TestCase
+    LIVE_SERVER = 'http://localhost:4567'
+
     class TestConnection < Faraday::Connection
       def _get(uri, headers)
         TestResponse.new(uri, nil, headers)

test/live_server.rb

@@ -0,0 +1,6 @@
+require 'rubygems'
+require 'sinatra'
+
+get '/hello_world' do
+  'hello world'
+end