RSpec HTTP is a RSpec extension library that adds support for writing specs that cover HTTP based API (or more popularly, RESTful APIs).
To use this library, first add the rspec-http gem to your Gemfile like so:
gem 'rspec-http', '~> 0.0.1'
Then add the following line to your spec_helper.rb:
require 'rspec/http'
This will make matchers such as the ones listed below available to you in your specs.
response.should be_http_ok response.should be_http_created response.should be_http_unprocessable_entity response.should be_http_im_a_teapot