third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-hidden.html - Issue 2556243003: IntersectionObserver: compute correct intersection ratio for 0x0 elements

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Side by Side Diff: third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-hidden.html

Issue 2556243003: IntersectionObserver: compute correct intersection ratio for 0x0 elements (Closed)

Patch Set: Logic fix Created 4 years ago

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	1 <!DOCTYPE html>

	2 <script src="../resources/intersection-observer-helper-functions.js"></script>

	3 <script src="../resources/testharness.js"></script>

	4 <script src="../resources/testharnessreport.js"></script>

	5

	6 <title>Ensure that a hidden zero-area element is treated correctly</title>

	7

	8 <div id='target' style='width: 0px; height: 0px; position: fixed; top: -1000px'< /div>"

	9

	10 <script>

	11 'use strict';

	12

	13 async_test(t => {

	14 let target = document.getElementById('target');

	15 let entries = [];

	16 new IntersectionObserver(changes => {

	17 entries.push(...changes);

	18 }).observe(target);

	19 waitForNotification(t.step_func_done(() => {

	20 // Since the element is initially assumed to be hidden, there are no entries .

	21 assert_equals(entries.length, 0);

	22 }));

	23 });

	24 </script>

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