Update pushState test

Author: mjackson

modules/__tests__/pushState-test.js

@@ -1,6 +1,5 @@
 import expect from 'expect';
 import React from 'react';
-import createHistory from 'history/lib/createHashHistory';
 import resetHash from './resetHash';
 import execSteps from './execSteps';
 import Router from '../Router';
@@ -43,10 +42,9 @@ describe('pushState', function () {
       ];
 
       var execNextStep = execSteps(steps, done);
-      var history = createHistory();
 
       React.render((
-        <Router history={history} onUpdate={execNextStep}>
+        <Router onUpdate={execNextStep}>
           <Route path="/" component={Index}/>
           <Route path="/home/hi:there" component={Home}/>
         </Router>