storybook-play-functions

Automate UI interaction testing in Storybook using play functions with userEvent to simulate user actions like typing and clicking, combined with Testing Library queries and waitFor assertions to validate component behavior and state changes.

Yes. Play functions let you simulate user input, trigger validation logic, and use waitFor to assert on asynchronous updates, enabling end-to-end interaction testing directly in your stories without leaving Storybook.

Use play functions to simulate invalid inputs and trigger error conditions, then use Testing Library queries to assert error messages and UI changes appear correctly, ensuring components handle edge cases robustly.

Yes. Play functions rely on Testing Library utilities—within, getBy*, queryBy*—to query DOM elements and userEvent to simulate interactions. Testing Library is the standard approach for interaction testing in Storybook.

Play functions automate repetitive interaction sequences—typing, clicking, waiting for async updates—so you verify component behavior consistently without manual browser clicks, enabling continuous validation across component changes.

Play functions excel at testing user workflows: form submissions with validation, multi-step interactions, error recovery, async loading states, and conditional rendering triggered by user input—scenarios requiring scripted sequences of actions.