Karma + Webpack + fetch-mock

event-creator.spec.js

import configureMockStore from 'redux-mock-store';
import * from '../actions';
// must come before fetch-mock
import 'isomorphic-fetch';
import fetchMock from 'fetch-mock';
import thunk from 'redux-thunk';

const expect = chai.expect;
const fixtureData = require('aFixtureFile');
const mock = fetchMock.mock;
const middlewares = [ thunk ];
const mockStore = configureMockStore(middlewares);


describe('Actions: fetchEvents', function () {

    beforeEach(function () {

        mock(/^\/api\/events/, fixtureData);
    });

    afterEach(function () {

        mock.restore();
    });

    it('creates EVENTS_SUCCESS when fetching is successful', function () {

        const store = mockStore({ events: { list: [] }});
        const expectedActions = [
            { type: EVENTS_REQUESTED },
            { type: EVENTS_SUCCESS },
        ];

        return store.dispatch(fetchEvents())
            .then(function () {

                debugger;
                expect(store.getActions()).to.equal(expectedActions);
            });
    });

});