third_party/WebKit/ManualTests/bugzilla-48077.html

   1 <html>
   2 <!--
   3 This test case is used to prove HTMLParserScheduler should be suspended when page loading is deferred. See https://bugs.webkit.org/show_bug.cgi?id=48077.
   4 However, this test case can work only when customHTMLTokenizerChunkSize() is equal to or smaller than 256. To reproduce the problem with other settings, try
   5 adding more tags into body.
   6
   7 To use the test case, open it in browser, when the alert shows up, wait for a few seconds, and close the alert. If it shows "Error detected", that means the problem exists.
   8 -->
   9 <script>
  10 var showingAlert = false;
  11
  12 function log(message, replace)
  13 {
  14     if (replace)
  15         document.getElementById("result").innerHTML = message;
  16     else
  17         document.getElementById("result").innerHTML += "<br>" + message;
  18 }
  19
  20 function showAlert()
  21 {
  22     showingAlert = true;
  23     alert("Test");
  24     showingAlert = false;
  25 }
  26
  27 // Insert a script element so the script will be executed when the resource is loaded.
  28 function insertScript()
  29 {
  30     var head = document.getElementsByTagName("head")[0];
  31     var myScript = document.createElement('script');
  32     myScript.type = 'text/javascript';
  33     myScript.src = 'resources/bugzilla-48077.js';
  34     head.appendChild(myScript);
  35 }
  36 function check()
  37 {
  38     // Check JS re-entrancy. If showingAlert is true, we are still in showAlert().
  39     if (showingAlert)
  40         log("Error detected!", false);
  41     else
  42         log("No error detected.", false);
  43 }
  44
  45 // Do a time consuming job so we can make HTML parser run over time limit.
  46 function logTime()
  47 {
  48     // time consuming job;
  49     var startTime = new Date();
  50     do {
  51         var currentTime = new Date();
  52         log(currentTime, true);
  53     } while (currentTime - startTime < 1000);
  54 }
  55 </script>
  56 <body>
  57 <p id="result"></p>
  58
  59 <script>
  60 insertScript();
  61 </script>
  62
  63 <!-- Time consuming job to make HTML parser run over chunk time limit -->
  64 <script>
  65 logTime();
  66 </script>
  67
  68 <!-- Lots of tags to make HTML parser run over chunk size limit -->
  69 <a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a>
  70
  71 <!-- Time consuming job to make HTML parser run over chunk time limit -->
  72 <script>
  73 logTime();
  74 </script>
  75
  76 <!-- Lots of tags to make HTML parser run over chunk size limit -->
  77 <a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a><a>1</a>
  78
  79
  80 <script>
  81 check();
  82 </script>
  83
  84
  85
  86 </body>
  87 </html>