gecko-dev/testing/web-platform/tests/custom-elements/reactions/HTMLOutputElement.html

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<!DOCTYPE html>
<html>
<head>
<title>Custom Elements: CEReactions on HTMLOutputElement interface</title>
<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
<meta name="assert" content="value and defaultValue of HTMLOutputElement interface must have CEReactions">
<meta name="help" content="https://dom.spec.whatwg.org/#node">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../resources/custom-elements-helpers.js"></script>
<script src="./resources/reactions.js"></script>
</head>
<body>
<div id="log"></div>
<script>
test_with_window(function (contentWindow, contentDocument) {
const element = define_custom_element_in_window(contentWindow, 'custom-element', []);
contentDocument.body.innerHTML = `<output><custom-element>hello</custom-element></output>`;
const anchor = contentDocument.querySelector('output');
assert_array_equals(element.takeLog().types(), ['constructed', 'connected']);
assert_equals(anchor.innerHTML, '<custom-element>hello</custom-element>');
anchor.value = 'world';
assert_equals(anchor.innerHTML, 'world');
assert_array_equals(element.takeLog().types(), ['disconnected']);
}, 'value on HTMLOutputElement must enqueue disconnectedCallback when removing a custom element');
test_with_window(function (contentWindow, contentDocument) {
const element = define_custom_element_in_window(contentWindow, 'custom-element', []);
contentDocument.body.innerHTML = `<output><custom-element>hello</custom-element></output>`;
const anchor = contentDocument.querySelector('output');
assert_array_equals(element.takeLog().types(), ['constructed', 'connected']);
assert_equals(anchor.innerHTML, '<custom-element>hello</custom-element>');
anchor.defaultValue = 'world';
assert_equals(anchor.innerHTML, 'world');
assert_array_equals(element.takeLog().types(), ['disconnected']);
}, 'defaultValue on HTMLOutputElement must enqueue disconnectedCallback when removing a custom element');
</script>
</body>
</html>