ember_sinon_test_issue.js

//util 
let cachedBrowser = '';

export function userAgent() {
  return navigator.userAgent.toLowerCase();
}

export function browser() {
  if (cachedBrowser.length > 0) {
    return cachedBrowser;
  } else {
    cachedBrowser = userAgent();
    return cachedBrowser;
  }
}

export function isMobile() {
  return /android|ipad|iphone|iemobile/i.test(browser());
}
export function isNotMobile() {
  return !this.isMobile();
}
export function isSafari5() {
  return /version\/5.+\ssafari\//i.test(browser()) && !browser().match(' Chrom');
}

export function resetCachedBrowser() {
  cachedBrowser = '';
}

export function setCachedBrowser(string) {
  cachedBrowser = string;
}

// Test
/* global sinon */
import {
  browser,
  isMobile,
  isNotMobile,
  isSafari5,
  resetCachedBrowser,
  setCachedBrowser,
  userAgent
} from 'player-code/util/user-agent-checker';

import { module, test } from 'qunit';

const browserGuy = { browser }

let sandbox;
module('Unit | Utility | user agent checker', {
  beforeEach() {
    sandbox = sinon.sandbox.create();
  },
  afterEach() {
    sandbox.restore();
    resetCachedBrowser();
  }
});

test('.browser()', function(assert) {
  let result = browser();
  assert.equal(typeof result, 'string', 'returns a string identifying the browser useragent');
});

// TEST THAT ISNT WORKING
test('navigator user agent call is cached', function(assert) {
  let spy = sandbox.spy('what is this?', 'browser');

  isSafari5();
  isMobile();
  isMobile();
  isMobile();
  isMobile();
  assert.equal(spy.callCount, 1, 'navigator.userAgent is only called once');
});

test('.isMobile', function(assert) {
  setCachedBrowser('Mozilla/5.0 (Linux; U; Android 2.3; en-us) AppleWebKit/999+ (KHTML, like Gecko) Safari/999.9');
  assert.equal(isMobile(), true, 'returns true when using a mobile device');

  setCachedBrowser('Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko');
  assert.equal(isMobile(), false, 'returns false when using a desktop browser useragent');
});


test('when it is a safari 5 browser', function(assert) {
  setCachedBrowser('Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_8; de-at) AppleWebKit/533.21.1 (KHTML, like Gecko) Version/5.0.5 Safari/533.21.1');

  assert.equal(isSafari5(), true, 'returns true when using safari 5');
});

test('when it isnt a safari 5 browser', function(assert) {
  setCachedBrowser('Mozilla/5.0 (Linux; U; Android 2.3; en-us) AppleWebKit/999+ (KHTML, like Gecko) Safari/999.9');
  assert.equal(isSafari5(), false, 'returns false when not using safari 5');
});