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<!DOCTYPE html>
<title>Geometry interfaces: DOMRectList</title>
<link rel="help" href="https://drafts.fxtf.org/geometry-1/#DOMRectList">
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<div id=x>x</div>
<script>
setup(() => {
window.domRectList = document.getElementById('x').getClientRects();
});
test(() => {
assert_true('DOMRectList' in window);
}, 'DOMRectList is exposed');
test(() => {
assert_false(domRectList instanceof Array);
}, 'DOMRectList is not [LegacyArrayClass]');
test(() => {
assert_equals(domRectList.length, 1);
}, 'DOMRectList length');
test(() => {
assert_equals(domRectList[-1], undefined, 'domRectList[-1]');
assert_class_string(domRectList[0], 'DOMRect', 'domRectList[0]');
assert_equals(domRectList[1], undefined, 'domRectList[1]');
}, 'DOMRectList indexed getter');
test(() => {
assert_equals(domRectList.item(-1), null, 'domRectList.item(-1)');
assert_class_string(domRectList.item(0), 'DOMRect', 'domRectList.item(0)');
assert_equals(domRectList.item(1), null, 'domRectList.item(1)');
assert_equals(domRectList.item(0), domRectList[0], 'domRectList.item(0) should equal domRectList[0]');
}, 'DOMRectList item()');
</script>
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