Visual regression testing is the perfect tool to catch regressions within our UI component libraries and applications early, yet few teams practice it. Teams often avoid it due to complicated setups, cumbersome workflows, and difficulties syncing tests across different operating systems...
Specmatic quickly became my favorite tool for contract testing microservices and for using it as a stub service to test frontend applications. Together with Playwright this makes for a great combo! Yet there is a problem with this approach: Out of the box we can't run tests in parallel with this setup because Specmatic's stub server, by default, isn't designed for parallel execution...
Storybook’s visual regression testing tool Chromatic is powerful but expensive. Luckily, with tools like Playwright, we can build a free alternative for running visual regression tests on our UI components. In this article, we’ll explore how to integrate Playwright with Storybook and use Docker to ensure consistent test results across different machines and CI environments.