chrome/test/data/extensions/api_test/merge_session/background.js

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 var googleResponseReceived = false;
   6 var googleRequestSent = false;
   7 var nonGoogleResponseReceived = false;
   8 var nonGoogleRequestSent = false;
   9
  10 function initGlobals() {
  11   googleResponseReceived = false;
  12   googleRequestSent = false;
  13   nonGoogleResponseReceived = false;
  14   nonGoogleRequestSent = false;
  15 }
  16
  17 // Starts XHR requests - one for google.com and one kater for non-google.
  18 function startXHRRequests(googlePageUrl, googlePageCheck,
  19                           nonGooglePageUrl, nonGooglePageCheck) {
  20   // Kick off google XHR first.
  21   var xhr = new XMLHttpRequest();
  22   xhr.onreadystatechange = function() {
  23     console.warn("xhr.onreadystatechange: " + xhr.readyState);
  24     if (xhr.readyState == 1) {
  25       startNonGoogleXHRRequests(nonGooglePageUrl, nonGooglePageCheck);
  26     } else if (xhr.readyState == 4) {  // done
  27       if (xhr.status == 200 &&
  28           xhr.responseText.indexOf('Hello Google') != -1) {
  29         googleResponseReceived = true;
  30         googlePageCheck();
  31       }
  32     }
  33   };
  34   xhr.open("GET", googlePageUrl, true);
  35   xhr.send();
  36   googleRequestSent = true;
  37
  38 }
  39
  40 function startNonGoogleXHRRequests(nonGooglePageUrl, nonGooglePageCheck) {
  41   // Kick off non-google XHR next.
  42   var xhr2 = new XMLHttpRequest();
  43   xhr2.onreadystatechange = function() {
  44     console.warn("xhr2.onreadystatechange: " + xhr2.readyState);
  45     if (xhr2.readyState == 4) {  // done
  46       if (xhr2.status == 200 &&
  47           xhr2.responseText.indexOf('SomethingElse') != -1) {
  48         // Google response should not have been received before non-google
  49         // XHR since it must be blocked by the throttle side right now.
  50         chrome.test.sendMessage('non-google-xhr-received');
  51         nonGoogleResponseReceived = true;
  52         nonGooglePageCheck();
  53       }
  54     }
  55   };
  56   xhr2.open("GET", nonGooglePageUrl, true);
  57   xhr2.send();
  58   nonGoogleRequestSent = true;
  59   return true;
  60 }
  61
  62 function googlePageThrottleCheck() {
  63   // Google response should not have been received before non-google
  64   // XHR since it must be blocked by the throttle side right now.
  65   if (nonGoogleResponseReceived)
  66     chrome.test.succeed();
  67   else
  68     chrome.test.fail();
  69 }
  70
  71 function nonGooglePageThrottleCheck() {
  72 }
  73 // Performs test that will verify if XHR request had completed prematurely.
  74 function startThrottledTests(googlePageUrl,nonGooglePageUrl) {
  75   chrome.test.runTests([function testXHRThrottle() {
  76     initGlobals();
  77     startXHRRequests(googlePageUrl, googlePageThrottleCheck,
  78                      nonGooglePageUrl, nonGooglePageThrottleCheck);
  79   }]);
  80   return true;
  81 }
  82
  83 function googlePageNoThrottleCheck() {
  84   console.warn("googlePageNoThrottleCheck: " + googleResponseReceived);
  85 }
  86
  87 function nonGooglePageNoThrottleCheck() {
  88   // Non-google response should be received only after google request
  89   // since there is no throttle now.
  90   if (googleResponseReceived) {
  91     chrome.test.succeed();
  92   } else {
  93     console.warn("nonGooglePageNoThrottleCheck: " + googleResponseReceived);
  94     chrome.test.fail();
  95   }
  96 }
  97
  98 // Performs test that will verify that XHR will complete in order they were
  99 // issued since there is no throttle to change that since this test is running
 100 // after merge session is completed.
 101 function startNonThrottledTests(googlePageUrl, nonGooglePageUrl) {
 102   chrome.test.runTests([function testWithNoXHRThrottle() {
 103     initGlobals();
 104     startXHRRequests(googlePageUrl, googlePageNoThrottleCheck,
 105                      nonGooglePageUrl, nonGooglePageNoThrottleCheck);
 106   }]);
 107   return true;
 108 }