import jsdom from 'jsdom';

const doc = jsdom.jsdom('<!doctype html><html><body></body></html>');
const win = doc.defaultView;

global.document = doc;
global.window = win;

Object.keys(window).forEach((key) => {
  if (!(key in global)) {
    global[key] = window[key];
  }
});

@@ -19,16 +19,85 @@
 'jsdom';
+%0Aimport chai from 'chai';%0Aimport chaiImmutable from 'chai-immutable';
 %0A%0Aconst 
@@ -339,8 +339,34 @@
   %7D%0A%7D);%0A
+%0Achai.use(chaiImmutable);%0A

Support chai expectations for immutables.