W3C rspec validations
This gem adds rspec matchers that allow you to check if the html code produced by your rails app is valid.
You need rspec for this gem to work. In addition add this to your gemfile:
Here are examples for using it in acceptance tests:
scenario "visit landing page" do visit "/" page.body.should be_valid_html end
If you use capybara with a headless driver or something similiar be sure to check the original source code to be valid and not the source code that has been parsed and eventually corrected by the browser:
scenario "visit landing page" do visit "/" page.driver.source.should be_valid_html end
W3cRspecValidators::CssFiles.compiled will run rake assets:precompile and returns the applications css as string.
WARNING: This also deletes the folder public/assets so that the compiled assets are removed after the tests.
it "should be valid css" do W3cRspecValidators::CssFiles.compiled.should be_valid_css end
Running faster offline validation
If you do not want to use the online W3C Validation service, which is default, you can set the validator url to a locally runnig version of the W3C Validator service by creating a config file:
rails g w3c_rspec_validators:config
Check this url to see how to install your local version of the W3C validation service: http://validator.w3.org/docs/install.html For local HTML5 validation to work you'll need validator.nu running locally too: http://about.validator.nu
For local CSS validation to work you'll need http://jigsaw.w3.org/css-validator/DOWNLOAD.html
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