Test XState v5 state machines with Vitest or Jest.
npx skills add https://github.com/IlyaGulya/claude-marketplace --skill xstate-testing
Please help me install this Agent Skill. Skill: xstate-testing Source: https://github.com/IlyaGulya/claude-marketplace/tree/main/plugins/xstate/skills/xstate-testing Command: npx skills add https://github.com/IlyaGulya/claude-marketplace --skill xstate-testing
This Skill provides comprehensive strategies and patterns for effectively testing XState v5 state machines, ensuring the reliability and correctness of your application's state logic.
transition() and initialTransition()..provide() to mock actions, actors, and guards for controlled testing scenarios.waitFor, toPromise, and promise resolution patterns.Use the xstate-testing skill to write unit tests for your XState v5 machines, focusing on behavior and transitions.
High-intent search queries and answers about installing and using this skill.
You test XState v5 machines by creating actors, sending events, and asserting snapshots using Vitest or Jest. This approach focuses on verifying actual behavior and transitions rather than internal configuration structure.
Testing pure state transitions in isolation uses the `transition()` and `initialTransition()` functions to verify specific state changes directly, avoiding the overhead of instantiating full actors.
You mock actions, actors, and guards in XState v5 tests using the `.provide()` method to inject controlled implementations, isolating machine logic to ensure reliable and deterministic testing scenarios.
Handle asynchronous operations in XState actor tests using `waitFor`, `toPromise`, and promise resolution patterns to verify async behavior like successful logins, error states, or session timeouts.
Yes, you can test complex user authentication flows by mocking actors with `.provide()` to write robust tests covering successful logins, error states, and session timeouts.
pedronauckGuide XState v5 state machines, actors, stores, and TanStack Query integration.
farmountainExecute end-to-end tests to validate complete user workflows across the application stack.
sablier-labsModel and orchestrate React UI logic with xState v5 state machines.
IlyaGulyaExplain and demonstrate XState v5 transitions, events, and guarded target resolution.