Test Cases

🕙 Start time	⌛ Duration
5/19/2026, 2:21:20 PM	3.287 s

	✅ Passed	❌ Failed	⏩ Skipped	🚧 Todo	⚪ Total
Test Suites	6	0	1	0	7
Tests	17	0	2	0	19

✅ tests/store.test.ts [link]

6 passed, 0 failed, 0 skipped, 0 todo, done in 31.820942999999716 s

✅ store.ts (per-id stores)
   ✅ initializeFSM with class returns static id and creates an instance
   ✅ initializeFSM with props uses provided id and creates an instance once
   ✅ getStore.getSnapshot throws when FSM not initialized for the id
   ✅ subscribe returns unsubscribe and changeState notifies only current id subscribers
   ✅ initializeFSM(class) does not notify subscribers during render/init; notifications occur only on changeState
   ✅ multiple automata ids are isolated (changeState for one id does not affect others)

✅ tests/useFSM.test.ts [link]

5 passed, 0 failed, 0 skipped, 0 todo, done in 138.0333230000001 s

✅ useFSM tests
   ✅ instance class by automata id
   ✅ change state after action
   ✅ trace previous context
   ✅ check singleton
   ✅ does not re-render when dispatch results in the same state and context (isEqual guards)

✅ tests/useFSMWithSelector.test.ts [link]

6 passed, 0 failed, 2 skipped, 0 todo, done in 204.4708639999999 s

✅ useFSMWithSelector tests (selector-based hook)
   ✅ basic selector returns context
   ✅ selection reference is preserved when logically equal (isEqual preserves reference)
   ✅ without isEqual, selection reference changes even if logical value stays same
   ✅ constant primitive selection keeps the same value across transitions
   ✅ primitive boolean selection remains true for Red -> RedYellow
   ✅ selector: throws when selection returns null/undefined
⏩ selective re-render with second counter
   ⏩ selector: context.counter — Switch_1 after first Switch does not trigger re-render
   ⏩ selector: context.counter2 — reacts only to Switch_1; Switch does not trigger re-render