AUTOMATED ACCESSIBILITY TESTING AT SLACK

Summary from the TLDR Web Dev newsletter

Slack implemented automated accessibility testing using Axe, integrating it with their Playwright E2E framework to identify WCAG violations. They had initial challenges integrating Axe directly into their React Testing Library, but were able to successfully implement a system where accessibility checks run alongside existing tests, reporting critical violations. The full process includes a custom Playwright fixture to simplify test creation and uses an environment flag to control test execution on-demand, scheduled, and with CI.