third_party/WebKit/LayoutTests/fast/scrolling/scroll-to-origin-no-layout.html

   1 <!DOCTYPE html>
   2 <script src="../../resources/js-test.js"></script>
   3 <div id="spanner"></div>
   4 <script>
   5 spanner.style.height = "3000px";
   6 scrollTo(0, 1000);
   7
   8 if (window.internals) {
   9     var styleCount = internals.updateStyleAndReturnAffectedElementCount();
  10     var layoutCount = internals.needsLayoutCount();
  11     // scrollTo should have synchronously updated style and layout
  12     shouldBe("styleCount", "0");
  13     shouldBe("layoutCount", "0");
  14 }
  15 shouldBe("window.scrollY", "1000");
  16
  17 spanner.style.height = "2000px";
  18 scrollTo(0, 0);
  19
  20 if (window.internals) {
  21     var styleCount = internals.updateStyleAndReturnAffectedElementCount();
  22     var layoutCount = internals.needsLayoutCount();
  23     // scrollTo should not need to synchronously updated style and layout
  24     shouldNotBe("styleCount", "0");
  25     shouldNotBe("layoutCount", "0");
  26 }
  27 shouldBe("window.scrollY", "0");
  28 </script>