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Add coverage for TreeNode.closest() #24827

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Add coverage for TreeNode.closest() #24827

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73 changes: 0 additions & 73 deletions dom/nodes/Element-closest.html
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133 changes: 133 additions & 0 deletions dom/nodes/TreeNode-closest.html
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Original file line number Diff line number Diff line change
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<!DOCTYPE HTML>
<meta charset=utf-8>
<title>TreeNode.closest</title>
<link rel=help href="https://dom.spec.whatwg.org/#dom-treenode-closest">
<link rel=help href="https://github.com/whatwg/dom/pull/883">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body id="body">
<div id="test8" class="div3" style="display:none">
<div id="test7" class="div2">
<div id="test6" class="div1">
<form id="test10" class="form2"><!--test10--></form>
<form id="test5" class="form1" name="form-a">
<!--test5-->
<input id="test1" class="input1" required>
<fieldset class="fieldset2" id="test2">
<select id="test3" class="select1" required>
<option default id="test4" value="">Test4</option>
<option selected id="test11">Test11</option>
<option id="test12">Test12<!--test12--></option>
<option id="test13">Test13<!--test13--></option>
</select>
<input id="test9" type="text" required>
</fieldset>
</form>
<div id="test14"></div>
<div id="test15"></div>
</div>
</div>
</div>
<div id=log></div>
<script>
"use strict";
let test_num = 1; // to avoid duplicate test name

test_closest(test12, "select", test3);
test_closest(first_text_child(test12), "select", test3);
test_closest(test13, "fieldset", test2);
test_closest(first_text_child(test13), "fieldset", test2);
test_closest(test13, "div", test6);
test_closest(first_comment_child(test13), "div", test6);
test_closest(test3, "body", body);

test_closest(test4, "[default]", test4);
test_closest(test4, "[selected]", null);
test_closest(first_text_child(test4), "[selected]", null);
test_closest(test11, "[selected]", test11);
test_closest(first_text_child(test11), "[selected]", test11);
test_closest(test12, "[name='form-a']", test5);
test_closest(first_comment_child(test12), "[name='form-a']", test5);
test_closest(test13, "form[name='form-a']", test5);
test_closest(first_comment_child(test13), "form[name='form-a']", test5);
test_closest(test9, "input[required]", test9);
test_closest(test9, "select[required]", null);

test_closest(test13, "div:not(.div1)", test7);
test_closest(first_text_child(test13), "div:not(.div1)", test7);
test_closest(test6, "div.div3", test8);
test_closest(test1, "div#test7", test7);

test_closest(test12, ".div3 > .div2", test7);
test_closest(first_comment_child(test12), ".div3 > .div2", test7);
test_closest(test12, ".div3 > .div1", null);
test_closest(first_text_child(test12), ".div3 > .div1", null);
test_closest(test9, "form > input[required]", null);
test_closest(test12, "fieldset > select[required]", test3);
test_closest(first_text_child(test12), "fieldset > select[required]", test3);

test_closest(test6, "input + fieldset", null);
test_closest(first_text_child(test6), "input + fieldset", null);
test_closest(test3, "form + form", test5);
test_closest(test5, "form + form", test5);
test_closest(first_comment_child(test5), "form + form", test5);

test_closest(test10, ":empty", test10);
test_closest(first_comment_child(test10), ":empty", test10);
test_closest(test11, ":invalid", test2);
test_closest(first_text_child(test11), ":invalid", test2);
test_closest(test11, ":last-child", test2);
test_closest(first_text_child(test11), ":last-child", test2);
test_closest(test12, ":first-child", test3);
test_closest(first_comment_child(test12), ":first-child", test3);

test_closest(test4, ":scope", test4);
test_closest(test4, "select > :scope", test4);
test_closest(first_text_child(test4), "select > :scope", test4);
test_closest(test4, "div > :scope", null);
test_closest(first_text_child(test4), "div > :scope", null);
test_closest(test4, ":has(> :scope)", test3);
test_closest(first_text_child(test4), ":has(> :scope)", test3);

test_closest(document, "*", null);
test_closest(document.doctype, ":root", null);
test_closest(document.doctype, "html", null);

// detached nodes

const el = document.createElement("span");
test_closest(el, "*", el);

test_closest(new Text(), "*", null);
test_closest(new Comment(), "*", null);
test_closest(new Document(), "*", null);
test_closest(new DocumentFragment(), "*", null);

// shadow root

test_closest(test14.attachShadow({mode: "open"}), "*", null);
test_closest(test15.attachShadow({mode: "closed"}), "*", null);


function test_closest(node, selector, expected) {
test(function() {
assert_equals(node.closest(selector), expected);
}, `${test_num++} TreeNode.closest with context ${format_value(node)} and selector "${selector}"`);
}

function first_text_child(parent) {
for (const child of parent.childNodes) {
if (child.nodeType === Node.TEXT_NODE) {
return child;
}
}
}

function first_comment_child(parent) {
for (const child of parent.childNodes) {
if (child.nodeType === Node.COMMENT_NODE) {
return child;
}
}
}
</script>