| <!DOCTYPE HTML> |
| <link rel="help" |
| href="https://drafts.csswg.org/cssom-view/#extensions-to-the-window-interface"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <!-- |
| This test makes sure that calling the window scrolling methods with a single |
| non-dictionary argument or with a dictionary whose 'behavior' field is invalid |
| throws an exception. |
| --> |
| <div style="height: 1000px; width: 1000px; border: 1px solid black;"> |
| Scrollable area to test. |
| </div> |
| <script type="text/javascript"> |
| "use strict"; |
| |
| const x = 25; |
| const y = 50; |
| |
| function reset() { |
| window.scrollTo(0, 0); |
| } |
| |
| let scroll_methods = [window.scrollTo, window.scroll, window.scrollBy]; |
| |
| for (const scroll_method of scroll_methods) { |
| promise_test(async (test) => { |
| reset(); |
| try { |
| await scroll_method(); |
| } catch(e) { |
| assert_unreached(e); |
| } |
| }, scroll_method.name + " with 0 arguments"); |
| |
| promise_test(async (test) => { |
| reset(); |
| await promise_rejects_js(test, TypeError, scroll_method(x)); |
| }, scroll_method.name + " with 1 non-dictionary argument"); |
| |
| promise_test(async (test) => { |
| reset(); |
| try { |
| await scroll_method({ }); |
| await scroll_method({ left: x }); |
| await scroll_method({ top: y }); |
| await scroll_method({ behavior: "auto" }); |
| await scroll_method({ behavior: "instant" }); |
| await scroll_method({ behavior: "smooth" }); |
| await scroll_method({ left: x, top: y }); |
| await scroll_method({ left: x, top: y, behavior: "auto" }); |
| await scroll_method({ left: x, top: y, behavior: "instant" }); |
| await scroll_method({ left: x, top: y, behavior: "smooth" }); |
| } catch(e) { |
| assert_unreached(e); |
| } |
| }, scroll_method.name + " with a valid ScrollToOptions argument"); |
| |
| promise_test(async (test) => { |
| reset(); |
| await promise_rejects_js(test, TypeError, scroll_method({ behavior: "" })); |
| await promise_rejects_js(test, TypeError, scroll_method({ left: x, top: y, behavior: "abcd" })); |
| await promise_rejects_js(test, TypeError, scroll_method({ left: x, top: y, behavior: 200 })); |
| }, scroll_method.name + " with an invalid ScrollToOptions argument"); |
| } |
| </script> |
