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import {  AnyState,  AnyStateMachine,  matchesState,  StateValue} from '../src/index';
export function testMultiTransition(  machine: AnyStateMachine,  fromState: string,  eventTypes: string): AnyState {  const computeNext = (state: AnyState | string, eventType: string) => {    if (typeof state === 'string' && state[0] === '{') {      state = JSON.parse(state);    }    const nextState = machine.transition(state, eventType);    return nextState;  };
  const [firstEventType, ...restEvents] = eventTypes.split(/,\s?/);
  const resultState = restEvents.reduce<AnyState>(    computeNext,    computeNext(fromState, firstEventType)  );
  return resultState;}
export function testAll(  machine: AnyStateMachine,  expected: Record<string, Record<string, StateValue | undefined>>): void {  Object.keys(expected).forEach((fromState) => {    Object.keys(expected[fromState]).forEach((eventTypes) => {      const toState = expected[fromState][eventTypes];
      it(`should go from ${fromState} to ${JSON.stringify(        toState      )} on ${eventTypes}`, () => {        const resultState = testMultiTransition(machine, fromState, eventTypes);
        if (toState === undefined) {          // undefined means that the state didn't transition          expect(resultState.actions).toEqual([]);          expect(resultState.changed).toBe(false);        } else if (typeof toState === 'string') {          expect(matchesState(toState, resultState.value)).toBeTruthy();        } else {          expect(resultState.value).toEqual(toState);        }      });    });  });}