axe-selenium-python

axe-selenium-python integrates aXe and selenium to enable automated web accessibility testing.

This version of axe-selenium-python is using axe-core@4.0.2.

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Requirements

You will need the following prerequisites in order to use axe-selenium-python:

• selenium >= 3.0.0

• Python 2.7 or 3.6

• The appropriate driver for the browser you intend to use, downloaded and added to your path, e.g. geckodriver for Firefox:

  • geckodriver <https://github.com/mozilla/geckodriver/releases>_ downloaded and added to your PATH <https://stackoverflow.com/questions/40208051/selenium-using-python-geckodriver-executable-needs-to-be-in-path#answer-40208762>_

Installation

To install axe-selenium-python:

.. code-block:: bash

$ pip install axe-selenium-python

Usage

.. code-block:: python

from selenium import webdriver from axe_selenium_python import Axe

def test_google(): driver = webdriver.Firefox() driver.get(“http://www.google.com“) axe = Axe(driver) # Inject axe-core javascript into page. axe.inject() # Run axe accessibility checks. results = axe.run() # Write results to file axe.write_results(results, ‘a11y.json’) driver.close() # Assert no violations are found assert len(results[“violations”]) == 0, axe.report(results[“violations”])

The method axe.run() accepts two parameters: context and options.

For more information on context and options, view the aXe documentation here <https://github.com/dequelabs/axe-core/blob/master/doc/API.md#parameters-axerun>_.

Contributing

Fork the repository and submit PRs with bug fixes and enhancements; contributions are very welcome.

Node dependencies must be installed by running npm install inside the axe-selenium-python directory.

You can run the tests using tox <https://tox.readthedocs.io/en/latest/>_:

.. code-block:: bash

$ tox

Resources

• Issue Tracker <http://github.com/mozilla-services/axe-selenium-python/issues>_
• Code <http://github.com/mozilla-services/axe-selenium-python/>_
• pytest-axe <http://github.com/mozilla-services/pytest-axe/>_

CHANGELOG ^^^^^^^^^^^^^^

version 2.1.5

Breaks backwards compatibility:

• The Axe class method execute has been renamed to run to mirror the method in the axe-core API.

version 2.1.0

• Created package.json file to maintain axe-core dependency
• Replaced unit tests with more meaningful integration tests
  • included a sample html file for integration tests

version 2.0.0

• All functionalities that are not part of axe-core have been moved into a separate package, pytest-axe. This includes:

  • run_axe helper method
  • get_rules Axe class method
  • run Axe class method
  • impact_included Axe class method
  • analyze Axe class method.

The purpose of this change is to separate implementations that are specific to the Mozilla Firefox Test Engineering team, and leave the base axe-selenium-python package for a more broad use case. This package was modeled off of Deque’s Java package, axe-selenium-java, and will now more closely mirror it.

All functionalities can still be utilized when using axe-selenium-python in conjunction with pytest-axe.

version 1.2.3

• Added the analyze method to the Axe class. This method runs accessibility checks, and writes the JSON results to file based on the page URL and the timestamp.
• Writing results to file can be enabled by setting the environment variable ACCESSIBILITY_REPORTING=true. The files will be written to results/ directory, which must be created if it does not already exist.
• Accessibility checks can be disabled by setting the environment variable ACCESSIBILITY_DISABLED=true.

version 1.2.1

• Updated axe to axe-core@2.6.1
• Modified impact_included class method to reflect changes to the aXe API:
• There are now only 3 impact levels: ‘critical’, ‘serious’, and ‘minor’

version 1.0.0

• Updated usage examples in README
• Added docstrings to methods lacking documentation
• Removed unused files

version 0.0.3

• Added run method to Axe class to simplify the usage in existing test suites
• run method includes the ability to set what impact level to test for: ‘minor’, ‘moderate’, ‘severe’, ‘critical’

version 0.0.28

• Added selenium instance as a class attribute
• Changed file paths to OS independent structure
• Fixed file read operations to use with keyword

version 0.0.21

• Fixed include of aXe API file and references to it
• Updated README