edx-custom-a11y-rules

.. image:: https://travis-ci.org/edx/edx-custom-a11y-rules.svg?branch=master :target: https://travis-ci.org/edx/edx-custom-a11y-rules

Overview

This package is intended to be used with Bok Choy's interface to aXe Core accessibility auditing library <http://bok-choy.readthedocs.org/en/latest/api_reference.html#module-bok_choy.a11y.axe_core_ruleset>_.

lib/custom_a11y_ruleset.js contains some custom edX accessibility rules, written to be compatible with aXe core.

Please review the Bok Choy documentation <http://bok-choy.readthedocs.org/en/latest/api_reference.html#module-bok_choy.a11y.axe_core_ruleset>_ for details about how to include custom rules in a page audit.

Installation

Install from github with:

.. code:: bash

npm install edx/edx-custom-a11y-rules#v0.1.0

Writing new rules

Getting set up for development

Make sure npm is installed, then:

.. code:: bash

git clone https://github.com/edx/edx-custom-a11y-rules.git
cd edx-custom-a11y-rules
make develop

Development guides

New Rules and Checks should be written in lib/custom_a11y_rules.js.

• aXe Core development guide for Rules <https://github.com/dequelabs/axe-core/blob/master/doc/developer-guide.md#rules>_

• aXe Core development guide for Checks <https://github.com/dequelabs/axe-core/blob/master/doc/developer-guide.md#checks>_

Testing guide

There are Jasmine tests for checking that the custom rules behave as intended and that they can integrate with aXe Core. These can be run in "dev" mode, which keeps the browser up for debugging, or in "single-run" mode to run once and exit. See the Testing checklist_ below for more details about writing tests.

To run tests for the custom ruleset in "dev" mode:

.. code:: bash

make test-dev

To run tests for the custom ruleset in "single-run" mode:

.. code:: bash

make test

Additionally, to check code quality with JSHint, use:

.. code:: bash

make quality

Testing checklist

• Write sample html files with the examples of pass/fail cases in test/fixtures/. These are the fixtures that will be used for tests.

• If you are writing a Check, add the test cases for your check to specCases in test/spec/checks_spec.js.

• If you are writing a Rule, add the test cases for your rule to specCases in test/spec/rule_spec.js.

• If needed, any new integration tests can go in test/spec/integration_spec.js.