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Test Info:

<!DOCTYPE html>
<title>Only certain HTML elements reflect the name content attribute as a property</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/resources/common.js"></script>
<div id="log"></div>
<script>
function doesReflect(tagName) {
var element = document.createElement(tagName);
element.setAttribute("name", "foo");
assert_equals(element.getAttribute("name"), "foo", "setAttribute should change content attribute");
element.name = "bar";
assert_equals(element.getAttribute("name"), "bar", "assignment to .name should change content attribute");
}
function doesNotReflect(tagName) {
var element = document.createElement(tagName);
element.setAttribute("name", "foo");
assert_equals(element.getAttribute("name"), "foo", "setAttribute should change content attribute");
element.name = "bar";
assert_equals(element.getAttribute("name"), "foo", "assignment to .name should not change content attribute");
}
var reflectingTagNames = [
"a", "button", "embed", "fieldset", "form", "frame",
"iframe", "img", "input", "map", "meta", "object", "output",
"param", "select", "slot", "textarea",
];
// Optionally add "details" to reflectingTagNames since Chromium is
// prototyping the proposal at
// reflection to "details" as well.
// TODO(https://crbug.com/1444057): This runtime check should eventually be
// removed, and depending on the outcome of the proposal details should
// possibly be added to reflectingTagNames unconditionally.
if ("name" in HTMLDetailsElement.prototype) {
reflectingTagNames.push("details");
}
const old_and_new_elements = [...HTML5_ELEMENTS, ...HTML5_DEPRECATED_ELEMENTS];
const nonReflectingTagNames = old_and_new_elements.filter(x => !reflectingTagNames.includes(x));
reflectingTagNames.forEach(function(tagName) {
test(function() {
doesReflect(tagName)
}, tagName + " element's name property reflects its content attribute");
});
nonReflectingTagNames.forEach(function(tagName) {
test(function() {
doesNotReflect(tagName)
}, tagName + " element's name property does not reflect its content attribute");
});
</script>