third_party/WebKit/LayoutTests/http/tests/loading/preload-img-test.html

   1 <script src="/js-test-resources/js-test.js"></script>
   2 <iframe id='iframe'></iframe>
   3 <script>
   4 description("This test is to test whether preload image will require 2 more requests or not.");
   5
   6 window.jsTestIsAsync = true;
   7
   8 function CallCommand(cmd)
   9 {
  10    try {
  11        var req = new XMLHttpRequest;
  12        req.open("GET", "/resources/network-simulator.php?command=" + cmd, false);
  13        req.send(null);
  14        return req.responseText;
  15    } catch (ex) {
  16        return "";
  17    }
  18 }
  19
  20 var count;
  21 function checkAccessCount()
  22 {
  23    // Get the access count of resource:/loading/resources/preload-test.jpg. Should be 1.
  24    count = CallCommand("get-resource-count&path=/loading/resources/preload-test.jpg");
  25    shouldBeEqualToString('count', '1');
  26    finishJSTest();
  27 }
  28
  29 // Reset resource count
  30 CallCommand("reset-resource-count");
  31
  32 window.addEventListener("message", function(event) {
  33     if (event.data == 'imgerror') {
  34         testFailed("test img load failed");
  35         finishJSTest();
  36     } else if (event.data == 'imgload') {
  37         setTimeout(checkAccessCount, 1000);
  38     } else {
  39         debug(event.data);
  40     }
  41 });
  42
  43 var iframe = document.getElementById("iframe");
  44 iframe.src = 'resources/preload-img-test-iframe.html';
  45 </script>