third_party/WebKit/LayoutTests/fast/scroll-behavior/overflow-scroll-root-frame-animates.html

   1 <!DOCTYPE html>
   2 <style>
   3 #content {
   4   width: 750px;
   5   height: 10000px;
   6   background-color: blue;
   7 }
   8 </style>
   9 <script src="../../resources/js-test.js"></script>
  10 <div id="content"></div>
  11 <div id="console"></div>
  12 <script>
  13
  14 jsTestIsAsync = true;
  15
  16 var prevScrollY;
  17 var scrollStart;
  18
  19 function runTest() {
  20     internals.settings.setScrollAnimatorEnabled(true);
  21
  22     window.addEventListener("scroll", onWindowScroll);
  23
  24     testRunner.layoutAndPaintAsyncThen(function() {
  25         window.eventSender.keyDown('end');
  26     });
  27 }
  28
  29 function onWindowScroll() {
  30     if (typeof prevScrollY === 'undefined') {
  31         shouldNotBe("window.scrollY",
  32                     "document.body.scrollHeight - window.innerHeight");
  33         shouldBeGreaterThan("window.scrollY", "0");
  34         prevScrollY = window.scrollY;
  35
  36         if (window.scrollY === document.body.scrollHeight - window.innerHeight) {
  37             // We wont get another scroll event. The failure was reported above
  38             // but return early to prevent a timeout.
  39             finishJSTest();
  40         }
  41     } else {
  42         shouldBeGreaterThan("window.scrollY", "prevScrollY");
  43         finishJSTest();
  44     }
  45 }
  46
  47 description("Tests that overflow scrolls on the root frame are animated.");
  48
  49 if (window.eventSender)
  50     runTest();
  51 else
  52     debug("FAIL: This test requires window.eventSender.");
  53
  54 </script>