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Experimental spork'd cucumber-nagios ==================================== **Instructions:** Pull this repo. Bundle gems (you need RubyGems 1.3.5 + the bundler gem installed): $ gem bundle Start spork: $ bin/spork Run the sample feature with --debug option: $ bin/cucumber-nagios features/google.com/search.feature --debug Copy the outputted command line, paste into terminal, and append --drb to command line. Bundling dependencies ===================== Bundling cucumber-nagios's dependencies allows you to drop your cucumber-nagios project to any machine and have it run. This can be useful if you want to develop your tests on one machine, and deploy them to another (like a production Nagios server). You'll need to bundle your dependencies to use cucumber-nagios. First you need to make sure the following dependencies are installed: - RubyGems - bundler gem (automatically pulled in by the cucumber-nagios gem) To bundle your dependencies, within your project directory run: $ gem bundle Version control =============== It's strongly recommend that you store your cucumber-nagios projects in a version control system! To get up and running with git: $ git init $ git add . $ git commit -m 'created cucumber-nagios project' To get up and running with bzr: $ bzr init $ bzr add $ bzr commit -m 'created cucumber-nagios project' .bzrignore and .gitignores are created when you generate a project. Writing features ================ You can use the bin/cucumber-nagios-gen command to generate new features for you. It takes two arguments: the site you're testing, and feature you're testing: bin/cucumber-nagios-gen feature gnome.org navigation This will generate two files: features/gnome.org/navigation.feature features/gnome.org/steps/navigation_steps.rb As for writing features, you'll want to have a read of the Cucumber documentation, however your tests will look something like this: Feature: google.com.au To broaden their knowledge A user should be able To search for things Scenario: Searching for things Given I visit "http://www.google.com" When I fill in "q" with "wikipedia" And I press "Google Search" Then I should see "www.wikipedia.org" There's a collection of steps that will cover most of the things you'll be testing for in features/steps/webrat_steps.rb. You can write custom steps for testing specific output and behaviour, e.g. in features/smh.com.au/smh.feature: Feature: smh.com.au It should be up And provide links to content Scenario: Visiting home page When I go to http://smh.com.au/ Then I should see site navigation And there should be a section named "Opinion" There aren't steps for "Then I should see site navigation", so you have to write one yourself. :-) In features/smh.com.au/steps/smh_steps.rb: Then /^I should see site navigation$/ do doc = Nokogiri::HTML(response.body.to_s) doc.css("ul#nav li a").size.should > 5 end You can use Nokogiri for testing responses with XPath matchers and CSS selectors. I suggest you use bin/cucumber directly so you can get better feedback when writing your tests: bin/cucumber --require features/ features/smh/smh.feature This will output using the default 'pretty' formatter. Running ======= Invoke the Cucumber feature with the cucumber-nagios script: bin/cucumber-nagios features/smh.com.au/smh.feature cucumber-nagios can be run from anywhere: /path/to/bin/cucumber-nagios /path/to/features/smh/smh.feature It should return a standard Nagios-formatted response string: Critical: 0, Warning: 0, 2 okay | passed=2, failed=0, total=2 Steps that fail will show up in the "Critical" total, and steps that pass show up in the "okay" total. The value printed at the end is in Nagios's Performance Data format, so it can be graphed and the like. Quirks & Caveats ================ Multiple scenarios ------------------ You may want to think about keeping to one scenario to a file, otherwise you'll get multiple lines of output for a test: Critical: 1, Warning: 0, 2 okay | passed=2, failed=1, total=3 Critical: 1, Warning: 0, 4 okay | passed=4, failed=1, total=5 That said, Nagios should only read the last line, so this might be an ok behaviour when you want to test for an aggregate of failures across a site. Failure *is* an option (exceptions are good) -------------------------------------------- Exceptions raised within your tests will appear in the failed totals, so you don't need to worry about trying to catch them in your own custom steps. i.e. if you try fetching a page on a server that is down, or the page returns a 404, the exception raised by Mechanize just gets treated by Cucumber as a test failure. Deploying to production ======================= Once you've copied your project around, just run the bundler again: $ gem bundle You'll need to have RubyGems and the bundler gem installed on the system you're deploying too. I know, this is not optimal, but hopefully the bundler gem will handle this better in the future.  http://wiki.github.com/aslakhellesoy/cucumber