使用Immutable.js测试更改多个属性的reducers

import { Map } from 'immutable';

const initialState = Map({
  property1: 'value1',
  property2: 'value2',
  property3: 'value3',
});

const reducer = (state = initialState, action) => {
  switch (action.type) {
    case 'UPDATE_PROPERTIES':
      return state.merge(action.payload);
    default:
      return state;
  }
};

import { expect } from 'chai';
import { Map } from 'immutable';

describe('reducer', () => {
  it('should update multiple properties', () => {
    const initialState = Map({
      property1: 'value1',
      property2: 'value2',
      property3: 'value3',
    });

    const action = {
      type: 'UPDATE_PROPERTIES',
      payload: {
        property1: 'new value1',
        property2: 'new value2',
      },
    };

    const nextState = reducer(initialState, action);

    expect(nextState.get('property1')).to.equal('new value1');
    expect(nextState.get('property2')).to.equal('new value2');
    expect(nextState.get('property3')).to.equal('value3');
  });
});