How to test UIs with Storybook

Storybook provides a clean-room environment for testing components in isolation. Stories make it easy to explore a component in all its variations, no matter how complex.

That means stories are a pragmatic starting point for your UI testing strategy. You already write stories as a natural part of UI development, testing those stories is a low-effort way to prevent UI bugs over time.

The simplest testing method is manual “spot checking”. You run Storybook locally, then eyeball every story to verify its appearance and behavior. Publish your Storybook online to share reproductions and get teammates involved.

To test a component in isolation, you often have to mock data, dependencies, or even network requests. Check out our guide on mocking in Storybook for more info.

Storybook also comes with tools, a test runner, and handy integrations with the larger JavaScript ecosystem to expand your UI test coverage. These docs detail how you can use Storybook for UI testing.

• Component tests for user behavior simulation
• Visual tests for appearance
• Accessibility tests for accessibility
• Snapshot tests for rendering errors and warnings
• Test runner to automate test execution
• Test coverage for measuring code coverage
• End-to-end tests for simulating real user scenarios
• Unit tests for functionality