How to use axios mock adapter

axiosMockAdapterUse.js

// Fetch all places action to test in actions/index.js
import axios from 'axios';

export function fetchPlaces() {
  return dispatch => {
    return axios.get('/api/places/fetchAll')
      .then(resp => {
        dispatch(updatePlaces(resp.data));
      })
      .catch(err => {
        console.log('Couldn\'t fetch places: ', err);
        dispatch(authError(err));
      });
  }
}

// Unit test in actions/actions.spec.js
import axios from 'axios';
import MockAdapter from 'axios-mock-adapter';
const mock = new MockAdapter(axios);

const expectedPlaces = [{ name: 1 }, { name: 2 }];
// Here we mock the request that will be sent by our action and send back some expected data
mock.onGet('/api/places/fetchAll').reply(200, {
  data: expectedPlaces
});