Ensure we use the same module instance for action types in tests.

Author: timdorr

src/index.js

@@ -4,6 +4,7 @@ import bindActionCreators from './bindActionCreators'
 import applyMiddleware from './applyMiddleware'
 import compose from './compose'
 import warning from './utils/warning'
+import __DO_NOT_USE__ActionTypes from './utils/actionTypes'
 
 /*
  * This is a dummy function to check if the function name has been altered by minification.
@@ -30,5 +31,6 @@ export {
   combineReducers,
   bindActionCreators,
   applyMiddleware,
-  compose
+  compose,
+  __DO_NOT_USE__ActionTypes
 }

test/combineReducers.spec.js

@@ -1,6 +1,5 @@
 /* eslint-disable no-console */
-import { createStore, combineReducers } from '../'
-import ActionTypes from '../src/utils/actionTypes'
+import { createStore, combineReducers, __DO_NOT_USE__ActionTypes as ActionTypes } from '../'
 
 describe('Utils', () => {
   describe('combineReducers', () => {