third_party/WebKit/ManualTests/leak-observer-nonmain-world.html

   1 <!DOCTYPE html>
   2
   3 <p>Test that using mutation observers from the non-main world doesn't leak the document.</p>
   4 <p>Expected output of this test is LEAK: 28 WebCoreNode</p>
   5
   6 <iframe></iframe>
   7
   8 <script>
   9 testRunner.dumpAsText();
  10 testRunner.waitUntilDone();
  11
  12 var iframe = document.querySelector('iframe');
  13 var count = 0;
  14 var totalRuns = 5;
  15
  16 iframe.onload = function() {
  17     if (count++ < totalRuns) {
  18         testRunner.evaluateScriptInIsolatedWorld(1, 'new MutationObserver(function(){}).observe(document, {childList: true, subtree: true});');
  19         iframe.srcdoc = "<body><input autofocus></body>";
  20         GCController.collect();
  21     } else {
  22         GCController.collect();
  23         testRunner.notifyDone();
  24     }
  25 };
  26
  27 // Need autofocus since evaluateScriptInIsolatedWorld runs in the focused frame.
  28 iframe.srcdoc = "<body><input autofocus></body>";
  29 </script>
  30