Purpose

• Test ajax call
• Assert executed actions

Need

Mock 2 things:

• Store: using redux-mock-store
• HTTP calls: using nock (we add wiki for mock api so there is no nock)

Steps

Import

• thunk
• Redux mock store

import thunk from 'redux-thunk';
import configureMockStore from 'redux-mock-store';

Create mock store with initial state

    const store = mockStore({courses:[]});

Configure mock store with thunk middleware

const middleware = [thunk];
const mockStore = configureMockStore(middleware);

Define the test case with callback

it('should create BEGIN_AJAX_CALL and LOAD_COURSES_SUCCESS when loading courses', (done) => {});

Mock the API to return Promise.

Dispatch the actions and assert the promise callback

    store.dispatch(courseActions.loadCourses()).then(()=>{
      const actions = store.getActions();
      expect(actions[0].type).toEqual(types.BEGIN_AJAX_CALL);
      expect(actions[1].type).toEqual(types.LOAD_COURSES_SUCCESS);
    });

Tell Mocha the async work is completed

done();