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<!doctype html>
<meta charset="utf-8">
<title>dom-element-scroll tests</title>
<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrolltop">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#section1 {
width: 300px;
height: 500px;
top: 16px;
left: 16px;
border: inset gray 3px;
background: white;
}
#scrollable {
width: 400px;
height: 700px;
background: linear-gradient(135deg, red, blue);
}
#section2 {
width: 300px;
height: 500px;
top: 16px;
left: 16px;
border: inset gray 3px;
background: white;
}
#unscrollable {
width: 200px;
height: 300px;
background: linear-gradient(135deg, red, blue);
}
</style>
<section id="section1">
<div id="scrollable"></div>
</section>
<section id="section2">
<div id="unscrollable"></div>
</section>
<script>
var section1 = document.getElementById("section1");
var section2 = document.getElementById("section2");
test(function () {
// let it be "hidden" to have scrolling box
section1.style.overflow = "hidden";
section1.scroll(50, 60);
assert_equals(section1.scrollLeft, 50, "changed scrollLeft should be 50");
assert_equals(section1.scrollTop, 60, "changed scrollTop should be 60");
section1.scroll(0, 0); // back to the origin
}, "Element test for having scrolling box");
test(function () {
section1.scroll(10, 20);
assert_equals(section1.scrollLeft, 10, "changed scrollLeft should be 10");
assert_equals(section1.scrollTop, 20, "changed scrollTop should be 20");
section1.scroll(0, 0); // back to the origin
}, "Element test for having overflow");
test(function () {
// make it not "hidden" to not have scrolling box
section1.style.overflow = "visible";
section1.scroll(50, 0);
assert_equals(section1.scrollLeft, 0, "changed scrollLeft should be 0");
assert_equals(section1.scrollTop, 0, "changed scrollTop should be 0");
section1.scroll(0, 60);
assert_equals(section1.scrollLeft, 0, "changed scrollLeft should be 0");
assert_equals(section1.scrollTop, 0, "changed scrollTop should be 0");
section1.scroll(50, 60);
assert_equals(section1.scrollLeft, 0, "changed scrollLeft should be 0");
assert_equals(section1.scrollTop, 0, "changed scrollTop should be 0");
section1.scroll(0, 0); // back to the origin
}, "Element test for not having scrolling box");
test(function () {
section2.scroll(0, 20);
assert_equals(section2.scrollLeft, 0, "changed scrollLeft should be 0");
assert_equals(section2.scrollTop, 0, "changed scrollTop should be 0");
section2.scroll(10, 0);
assert_equals(section2.scrollLeft, 0, "changed scrollLeft should be 0");
assert_equals(section2.scrollTop, 0, "changed scrollTop should be 0");
section2.scroll(10, 20);
assert_equals(section2.scrollLeft, 0, "changed scrollLeft should be 0");
assert_equals(section2.scrollTop, 0, "changed scrollTop should be 0");
}, "Element test for not having overflow");
</script>