如何在Redux中测试递归调度

// reducer.js
import { combineReducers } from 'redux';

const initialState = {
  count: 0,
};

const counterReducer = (state = initialState, action) => {
  switch (action.type) {
    case 'INCREMENT':
      return {
        ...state,
        count: state.count + 1,
      };
    case 'DECREMENT':
      return {
        ...state,
        count: state.count - 1,
      };
    case 'RECURSIVE':
      if (state.count < 10) {
        return counterReducer(counterReducer(state, { type: 'INCREMENT' }), action);
      }
      return state;
    default:
      return state;
  }
};

const rootReducer = combineReducers({
  counter: counterReducer,
});

export default rootReducer;

// reducer.test.js
import { createStore } from 'redux';
import rootReducer from './reducer';

describe('counterReducer', () => {
  let store;

  beforeEach(() => {
    store = createStore(rootReducer);
  });

  it('should recursively increment count', () => {
    store.dispatch({ type: 'RECURSIVE' });
    const state = store.getState();
    expect(state.counter.count).toBe(10);
  });
});