Model-based testing in XState

Learn all about when and how to use model-based testing with XState.

• Model-based testing

  Adopting model-based testing can lead to self-documenting, easy-to-maintain tests which are far more DRY than regular tests.

• When to use XState Test

  When you discover a new tool, it’s tempting to use that tool for everything. Model-based testing is good for many use cases but not for all use cases.

• Quickstart

  How to get started quickly with model-based testing using XState and @xstate/test.

• Test paths

  @xstate/test generates test paths that it walks through to execute your tests. Knowing how these paths are generated will make your tests more predictable.

• Assertions

  If you’ve done testing before, you might be familiar with the setup, then assert pattern for writing tests:

• Event cases

  Sometimes you want to test your system with a variety of different values. For example, you might be testing a payment system where you can pay with many different currencies, and you need to ensure that GBP, EUR and USD all work.

• Jest in XState Test

  Integrating with Jest is simple with @xstate/test.

• Vitest in XState Test

  Integrating with Vitest is simple with @xstate/test.

• Cypress in XState Test

  Integrating with Cypress is simple with @xstate/test.

• Playwright in XState Test

  Integrating with Playwright is simple with @xstate/test.