Rack::Test 
Description
Rack::Test is a small, simple testing API for Rack apps. It can be used on its own or as a reusable starting point for Web frameworks and testing libraries to build on. Most of its initial functionality is an extraction of Merb 1.0‘s request helpers feature.
Features
- Maintains a cookie jar across requests
- Easily follow redirects when desired
- Set request headers to be used by all subsequent requests
- Small footprint. Approximately 200 LOC
Examples
require "rack/test"
class HomepageTest < Test::Unit::TestCase
include Rack::Test::Methods
def app
MyApp.new
end
def test_redirect_logged_in_users_to_dashboard
authorize "bryan", "secret"
get "/"
follow_redirect!
assert_equal "http://example.org/redirected", last_request.url
assert last_response.ok?
end
end
If you want to test one app in isolation, you just return that app as shown above. But if you want to test the entire app stack, including middlewares, cascades etc. you need to parse the app defined in config.ru.
OUTER_APP = Rack::Builder.parse_file('config.ru').first
class TestApp < Test::Unit::TestCase
include Rack::Test::Methods
def app
OUTER_APP
end
def test_root
get '/'
assert last_response.ok?
end
end
Install
To install the latest release as a gem:
sudo gem install rack-test
Or via Bundler:
gem "rack-test", require: "rack/test"
Authors
- Maintained by Bryan Helmkamp
- Contributions from Simon Rozet, Pat Nakajima and others
- Much of the original code was extracted from Merb 1.0‘s request helper
License
Copyright (c) 2008-2009 Bryan Helmkamp, Engine Yard Inc. See MIT-LICENSE.txt in this directory.
Releasing
- Ensure History.txt is up-to-date
- Bump VERSION in lib/rack/test.rb
- thor :release