| <!DOCTYPE HTML> |
| <style> |
| |
| body { |
| height: 30000px; |
| width: 30000px; |
| } |
| |
| .spacer { |
| height: 1000px; |
| width: 1000px; |
| } |
| |
| #scroller { |
| height: 100px; |
| width: 100px; |
| overflow: scroll; |
| } |
| </style> |
| |
| <div id=scroller> |
| <div class=spacer></div> |
| </div> |
| |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| function scrollToNonFinite(x, y) { |
| window.scrollTo(100, 100); |
| window.scrollTo(x, y); |
| assert_equals(window.scrollY, 0); |
| assert_equals(window.scrollX, 0); |
| |
| window.scrollTo(100, 100); |
| window.scrollTo({top: y, left: x}); |
| assert_equals(window.scrollY, 0); |
| assert_equals(window.scrollX, 0); |
| } |
| |
| function scrollByNonFinite(x, y) { |
| window.scrollTo(100, 100); |
| window.scrollBy(x, y); |
| assert_equals(window.scrollY, 100); |
| assert_equals(window.scrollX, 100); |
| |
| window.scrollTo(100, 100); |
| window.scrollBy({top: y, left: x}); |
| assert_equals(window.scrollY, 100); |
| assert_equals(window.scrollX, 100); |
| } |
| |
| function scrollTopNonFinite(y) { |
| scroller.scrollTop = 1; |
| assert_equals(scroller.scrollTop, 1); |
| scroller.scrollTop = y; |
| assert_equals(scroller.scrollTop, 0); |
| } |
| |
| function scrollLeftNonFinite(x) { |
| scroller.scrollLeft = 1; |
| assert_equals(scroller.scrollLeft, 1); |
| scroller.scrollLeft = x; |
| assert_equals(scroller.scrollLeft, 0); |
| } |
| |
| test(()=> { |
| window.scrollTo(1, 1); |
| assert_equals(window.scrollY, 1); |
| assert_equals(window.scrollX, 1); |
| |
| scrollToNonFinite(window.NaN, window.NaN); |
| scrollToNonFinite(window.Infinity, window.Infinity); |
| scrollToNonFinite(0, window.Infinity); |
| scrollToNonFinite(-window.Infinity, -window.Infinity); |
| |
| scrollByNonFinite(window.NaN, window.NaN); |
| scrollByNonFinite(window.Infinity, window.Infinity); |
| scrollByNonFinite(0, window.Infinity); |
| scrollByNonFinite(-window.Infinity, -window.Infinity); |
| |
| scrollTopNonFinite(window.NaN); |
| scrollTopNonFinite(window.Infinity); |
| scrollTopNonFinite(-window.Infinity); |
| |
| scrollLeftNonFinite(window.NaN); |
| scrollLeftNonFinite(window.Infinity); |
| scrollLeftNonFinite(-window.Infinity); |
| }, "Verifies that nan scroll position works correctly."); |
| |
| </script> |
