What is it?

Cardio is a set of Test::Unit based assertions to test live website deployments for consistency. Check that you've setup Passenger and Apache correctly to redirect, serve pages, and set cache headers.

Cardio is based on Net::HTTP at the moment, but will be expanded to use other network libraries.

Example:

require 'cardio'
class Test < Test::Unit::TestCase
  include Cardio::Assertions
  def test_redirect
    res = fetch("http://github.com")
    assert_redirect res, "http://www.github.com"
  end
end

Or, using my favorite testing library, Contest:

require 'contest'
require 'cardio'
class WebTest < Test::Unit::TestCase
  include Cardio::Assertions
  context "home page" do
    setup do 
      @res = fetch("http://www.github.com")
    end
    test "should be gzipped" do
      assert_gzipped @res
    end
    test "should be cached" do
      assered_cached @res
    end
  end
end

Assertions:

The res argument is the Net::HTTP response object that is returned by the fetch(url) call.

• assert_gzipped(res)
• assert_valid_xml(res)
• assert_html(res)
• assert_css(res)
• assert_redirect(res, location)
• assert_code(res, code)
• assert_content(res, content)
• assert_valid_json(res)
• assert_etag(res)
• assert_cached(res, value=nil)
• assert_header_present(res, header)
• assert_header(res, header, value)
• assert_content_type(res, content_type)
• assert_in_array(array, item)

Acknowledgments

• keyist for the idea, the name, and everything not involving the actual work to put this together.
• Citrusbyte for being an awesome company to work for