node-browser-environment/test/Function should setup browser environment.js

Simulates a global browser environment using jsdom

import test from 'ava';
import browserEnv from '../dist';

test(t => {
  t.is(typeof window, 'undefined');
  t.is(typeof document, 'undefined');
  t.is(typeof navigator, 'undefined');
  t.is(typeof HTMLElement, 'undefined');
  browserEnv();
  t.not(typeof window, 'undefined');
  t.not(typeof document, 'undefined');
  t.not(typeof navigator, 'undefined');
  t.not(typeof HTMLElement, 'undefined');
});