jest.mock('react-dom'); // To prevent issue of duplicate env. injection import * as actions from '../actions'; describe('actions', () => { it('create an add_product action', () => { const act = actions.addProduct({name:'my product'}); expect(act.payload.name).toEqual('my product'); expect(act.type).toEqual('ADD_PRODUCT'); expect( actions.addProduct.matchAction(act)).toBeTruthy(); }); });