Google analytics tests

app/analytics/__tests__/index.test.js

@@ -0,0 +1,52 @@
+import * as analytics from '../index';
+import {GA_HOST} from '../../common/constants';
+
+global.document = {
+  getElementsByTagName () {
+    return {
+      parentNode: {
+        insertBefore() {
+
+        }
+      }
+    }
+  }
+};
+
+describe('init()', () => {
+  it('correctly initializes', async () => {
+    window.localStorage = {};
+
+    analytics.trackEvent('premature', 'event');
+    analytics.setAccountId('acct_premature');
+
+    window.ga = jest.genMockFunction();
+    analytics.initAnalytics('acct_123');
+
+    // Verify that Google Analytics works
+    expect(window.ga.mock.calls.length).toBe(5);
+    expect(window.ga.mock.calls[0]).toEqual(['create', 'UA-86416787-1', {
+      clientId: 'dd2ccc1a-2745-477a-881a-9e8ef9d42403',
+      storage: 'none'
+    }]);
+    expect(window.ga.mock.calls[1].slice(0, 2)).toEqual(['set', 'checkProtocolTask']);
+    expect(window.ga.mock.calls[1][2]()).toBeNull();
+    expect(window.ga.mock.calls[2]).toEqual(['set', 'location', `https://${GA_HOST}/`]);
+    expect(window.ga.mock.calls[3]).toEqual(['send', 'pageview']);
+    expect(window.ga.mock.calls[4]).toEqual(['set', 'userId', 'acct_123']);
+
+    analytics.trackEvent('foo', 'bar', 'baz');
+    expect(window.ga.mock.calls.length).toBe(6);
+    expect(window.ga.mock.calls[5]).toEqual(['send', 'event', 'foo', 'bar', 'baz']);
+
+    analytics.setAccountId('acct_456');
+    expect(window.ga.mock.calls.length).toBe(7);
+    expect(window.ga.mock.calls[6]).toEqual(['set', 'userId', 'acct_456']);
+
+    // Try reinitializing
+    analytics.initAnalytics();
+    expect(window.ga.mock.calls.length).toBe(7);
+
+    // TODO: Verify that Segment works (although it's not that important)
+  });
+});

app/analytics/google.js

@@ -12,8 +12,8 @@ export function init (accountId = null) {
     _injectGoogleAnalyticsScript();
   }
 
-  if (!localStorage['gaClientId']) {
-    localStorage.setItem('gaClientId', require('node-uuid').v4());
+  if (!window.localStorage['gaClientId']) {
+    window.localStorage['gaClientId'] = require('node-uuid').v4();
   }
 
   const _sessionId = window.localStorage['gaClientId'];
@@ -44,23 +44,23 @@ export function setAccountId (accountId) {
 }
 
 export function trackEvent (...googleAnalyticsArgs) {
-  if (!window.ga) {
-    return;
-  }
-
-  window.ga('send', 'event', ...googleAnalyticsArgs);
+  window.ga && window.ga('send', 'event', ...googleAnalyticsArgs);
 }
 
 function _injectGoogleAnalyticsScript () {
-  (function (i, s, o, g, r, a, m) {
-    i['GoogleAnalyticsObject'] = r;
-    i[r] = i[r] || function () {
-        (i[r].q = i[r].q || []).push(arguments)
-      }, i[r].l = 1 * new Date();
-    a = s.createElement(o),
+  try {
+    (function (i, s, o, g, r, a, m) {
+      i['GoogleAnalyticsObject'] = r;
+      i[r] = i[r] || function () {
+          (i[r].q = i[r].q || []).push(arguments)
+        }, i[r].l = 1 * new Date();
+      a = s.createElement(o);
       m = s.getElementsByTagName(o)[0];
-    a.async = 1;
-    a.src = g;
-    m.parentNode.insertBefore(a, m)
-  })(window, document, 'script', 'https://www.google-analytics.com/segment.js', 'ga');
+      a.async = 1;
+      a.src = g;
+      m.parentNode.insertBefore(a, m)
+    })(window, document, 'script', 'https://www.google-analytics.com/segment.js', 'ga');
+  } catch (e) {
+    console.warn('-- Failed to inject Google Analytics --')
+  }
 }

app/analytics/index.js

@@ -1,9 +1,16 @@
 import * as segment from './segment';
 import * as google from './google';
 
+let initialized = false;
 export function initAnalytics(accountId) {
+  if (initialized) {
+    return;
+  }
+
   segment.init();
   google.init(accountId);
+
+  initialized = true;
 }
 
 export function trackEvent (...args) {

app/common/__tests__/localstorage.test.js

@@ -12,7 +12,7 @@ describe('LocalStorage()', () => {
 
   afterEach(() => {
     jest.clearAllTimers();
-  })
+  });
 
   it('create directory', () => {
     const basePath = `/tmp/insomnia-localstorage-${Math.random()}`;