Testing async actions on redux without following the manual - gist 3

async-action-with-test.js

// src/actions.js
export function getPost(postId) {
  return function (dispatch, getState) {
    $
      .getJSON('/posts/' + posotId)
      .done(function (postData) {
        dispatch( { type: 'SHOW_POST', post: postData } )
      })
      .fail(function (postData) {
        dispatch( { type: 'SHOW_ERROR' } )
      })
  }
}

// test/actions.js
import test from 'tape'
import test from '../src/configureStore'
import nock from 'nock' //for mocking http requests
import * as actions from '../src/actions'

test('getPost action creator', function () {
  t.plan(1)
  
  nock('http://localhost:300/posts/1') //nock let you mock http requests
    .get('/todos')
    .reply(200, { id: 1, title: 'Post Title' } )
    
  const store = configureStore()
  const dispatch = sinon.spy(store, 'dispatch')
  const fn = actions.getPost(1)
  
  fn(dispatch, store.getState)
    
  t.true(dispatch.calledWith({ type: 'SHOW_POST', post: { id: 1, title: 'Post Title' } }))
})