electron-react-boilerplate/test/reducers/counter.spec.js

Electron application boilerplate based on React, React Router, Webpack, React Hot Loader for rapid application development

import { expect } from 'chai';
import counter from '../../app/reducers/counter';
import { INCREMENT_COUNTER, DECREMENT_COUNTER } from '../../app/actions/counter';


describe('reducers', () => {
  describe('counter', () => {
    it('should handle initial state', () => {
      expect(counter(undefined, {})).to.equal(0);
    });

    it('should handle INCREMENT_COUNTER', () => {
      expect(counter(1, { type: INCREMENT_COUNTER })).to.equal(2);
    });

    it('should handle DECREMENT_COUNTER', () => {
      expect(counter(1, { type: DECREMENT_COUNTER })).to.equal(0);
    });

    it('should handle unknown action type', () => {
      expect(counter(1, { type: 'unknown' })).to.equal(1);
    });
  });
});