continua11y

A continuous integration service using pa11y, a web accessibility tool. It provides a script for generating accessibility statistics for all pages on a site, which is designed to run within a testing environment like Travis CI (though it can run anywhere). It then stores the results of scans in a Postgres database and produces a badge with the result that can be used as an image on any website.

Usage

Run continua11y.sh as part of your Travis CI suite of tests.

1. Copy the script to your repo and add after_script: ./path/to/continua11y.sh to your .travis.yml file.

2. Set a few environmental variables:

   • RUN_SCRIPT: The command for serving your site. Necessary if the server shuts down after the tests run in script. Make sure that the server detaches so that the script continues to run.
   • KILL_SCRIPT: The command to stop serving. This is optional, and more useful for local development.
   • USE_SITEMAP: If your site has a sitemap.xml file, set to true to use that instead of the spider.
   • PORT: The port on localhost where your served site is found.
   • STANDARD: The accessibility standard used for testing. Defaults to WCAG2AAA, but can also be Section508, WCAG2A, or WCAG2AA.
   • CONTINUA11Y: The location where continua11y is running. The main site is continua11y.18f.gov, but you can change this for testing purposes or whatever.

Installation

npm install
node app.js # or foreman start

You may run into trouble installing the gh-badges package. Check that project for more in-depth information.