electron-event-flux/src/utils/__tests__/objectMerge.test.ts

Redux store which synchronizes between instances in multiple process

import objectDifference from '../objectDifference';
import objectMerge from '../objectMerge';
import { Map, List, is, fromJS } from 'immutable';

test('base merge', () => {
  let sameObj = { hello: 'a' };
  let oldObj = { d: 'b', same: sameObj };
  let newObj = { m: 'b', same: sameObj };
  let { updated, deleted } = objectDifference(oldObj, newObj);
  let retObj = objectMerge(oldObj, updated, deleted); 
  expect(retObj).toEqual(newObj);
});

test('immutable diff', () => {
  let val1 = Map({ a: 2, b: 3, c: 4 });
  let val2: Map<any, any> = Map({ a: 3, c: 4 });
  val2 = val2.set(10, 10);

  let { updated, deleted } = objectDifference(val1, val2);
  let retObj = objectMerge(val1, updated, deleted);
  expect(retObj.get('b')).toBeUndefined();
  expect(is(retObj, val2)).toBeTruthy();
  expect(retObj.get(10)).toBe(10);
});

test('immutable diff 2', () => {
  let oldPortfolio = {
    portfolioChartInfo: {
      't_913243980': fromJS({
        "useIndicatorNames":[],
        "compareTickers":[],
        "interval":"m5K",
        "selectLineType":null,
        "tickerSettings":{},
        "timespan":"Day5","chartType":"candles","useShape":"candle"
      })
    }
  };
  let newPortfolio = {
    portfolioChartInfo: {
      't_913243980': fromJS({
        "useIndicatorNames":[],
        "compareTickers":[],
        "selectLineType":null,
        "tickerSettings":{},
        "chartType":"candles","useShape":"candle"
      })
    }
  }
  let { updated, deleted } = objectDifference(oldPortfolio, newPortfolio);
  let retObj = objectMerge(oldPortfolio, updated, deleted);
  expect(is(retObj.portfolioChartInfo.t_913243980, newPortfolio.portfolioChartInfo.t_913243980)).toBeTruthy();
});