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element-scroll-arguments.html
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69 lines (61 loc) · 2.55 KB
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<!DOCTYPE HTML>
<title>Element.scroll* methods exception handling with various arguments</title>
<link rel="help"
href="https://drafts.csswg.org/cssom-view/#extension-to-the-element-interface">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<!--
This test makes sure that calling the element scrolling methods with a single
non-dictionary argument or with a dictionary whose 'behavior' field is invalid
throws an exception.
-->
<div id="container" style="height: 100px; width: 100px; overflow:scroll;">
<div style="height: 1000px; width: 1000px;"></div>
</div>
<script type="text/javascript">
"use strict";
const container = document.getElementById("container");
const x = 25;
const y = 50;
function reset() {
container.scrollTo(0, 0);
}
let scroll_methods = ["scrollTo", "scroll", "scrollBy"];
for (const scroll_method of scroll_methods) {
promise_test(async (test) => {
reset();
try {
await container[scroll_method]();
} catch(e) {
assert_unreached(e);
}
}, scroll_method + " with 0 arguments");
promise_test(async (test) => {
reset();
await promise_rejects_js(test, TypeError, container[scroll_method](x));
}, scroll_method + " with 1 non-dictionary argument");
promise_test(async (test) => {
reset();
try {
await container[scroll_method]({ });
await container[scroll_method]({ left: x });
await container[scroll_method]({ top: y });
await container[scroll_method]({ behavior: "auto" });
await container[scroll_method]({ behavior: "instant" });
await container[scroll_method]({ behavior: "smooth" });
await container[scroll_method]({ left: x, top: y });
await container[scroll_method]({ left: x, top: y, behavior: "auto" });
await container[scroll_method]({ left: x, top: y, behavior: "instant" });
await container[scroll_method]({ left: x, top: y, behavior: "smooth" });
} catch(e) {
assert_unreached(e);
}
}, scroll_method + " with a valid ScrollToOptions argument");
promise_test(async (test) => {
reset();
await promise_rejects_js(test, TypeError, container[scroll_method]({ behavior: "" }));
await promise_rejects_js(test, TypeError, container[scroll_method]({ left: x, top: y, behavior: "abcd" }));
await promise_rejects_js(test, TypeError, container[scroll_method]({ left: x, top: y, behavior: 200 }));
}, scroll_method + " with an invalid ScrollToOptions argument");
}
</script>