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/**
* Validations where `child` argument is irrelevant.
* @param {Function} methodName
*/
function preInsertionValidateHierarchy(methodName) {
function insert(parent, node) {
if (parent[methodName].length > 1) {
// This is for insertBefore(). We can't blindly pass `null` for all methods
// as doing so will move nodes before validation.
parent[methodName](node, null);
} else {
parent[methodName](node);
}
}
// Step 2
test(() => {
const doc = document.implementation.createHTMLDocument("title");
assert_throws_dom("HierarchyRequestError", () => insert(doc.body, doc.body));
assert_throws_dom("HierarchyRequestError", () => insert(doc.body, doc.documentElement));
}, "If node is a host-including inclusive ancestor of parent, then throw a HierarchyRequestError DOMException.");
// Step 4
test(() => {
const doc = document.implementation.createHTMLDocument("title");
const doc2 = document.implementation.createHTMLDocument("title2");
assert_throws_dom("HierarchyRequestError", () => insert(doc, doc2));
}, "If node is not a DocumentFragment, DocumentType, Element, Text, ProcessingInstruction, or Comment node, then throw a HierarchyRequestError DOMException.");
// Step 5, in case of inserting a text node into a document
test(() => {
const doc = document.implementation.createHTMLDocument("title");
assert_throws_dom("HierarchyRequestError", () => insert(doc, doc.createTextNode("text")));
}, "If node is a Text node and parent is a document, then throw a HierarchyRequestError DOMException.");
// Step 5, in case of inserting a doctype into a non-document
test(() => {
const doc = document.implementation.createHTMLDocument("title");
const doctype = doc.childNodes[0];
assert_throws_dom("HierarchyRequestError", () => insert(doc.createElement("a"), doctype));
}, "If node is a doctype and parent is not a document, then throw a HierarchyRequestError DOMException.")
// Step 6, in case of DocumentFragment including multiple elements
test(() => {
const doc = document.implementation.createHTMLDocument("title");
doc.documentElement.remove();
const df = doc.createDocumentFragment();
df.appendChild(doc.createElement("a"));
df.appendChild(doc.createElement("b"));
assert_throws_dom("HierarchyRequestError", () => insert(doc, df));
}, "If node is a DocumentFragment with multiple elements and parent is a document, then throw a HierarchyRequestError DOMException.");
// Step 6, in case of DocumentFragment has multiple elements when document already has an element
test(() => {
const doc = document.implementation.createHTMLDocument("title");
const df = doc.createDocumentFragment();
df.appendChild(doc.createElement("a"));
assert_throws_dom("HierarchyRequestError", () => insert(doc, df));
}, "If node is a DocumentFragment with an element and parent is a document with another element, then throw a HierarchyRequestError DOMException.");
// Step 6, in case of an element
test(() => {
const doc = document.implementation.createHTMLDocument("title");
const el = doc.createElement("a");
assert_throws_dom("HierarchyRequestError", () => insert(doc, el));
}, "If node is an Element and parent is a document with another element, then throw a HierarchyRequestError DOMException.");
// Step 6, in case of a doctype when document already has another doctype
test(() => {
const doc = document.implementation.createHTMLDocument("title");
const doctype = doc.childNodes[0].cloneNode();
doc.documentElement.remove();
assert_throws_dom("HierarchyRequestError", () => insert(doc, doctype));
}, "If node is a doctype and parent is a document with another doctype, then throw a HierarchyRequestError DOMException.");
// Step 6, in case of a doctype when document has an element
if (methodName !== "prepend") {
// Skip `.prepend` as this doesn't throw if `child` is an element
test(() => {
const doc = document.implementation.createHTMLDocument("title");
const doctype = doc.childNodes[0].cloneNode();
doc.childNodes[0].remove();
assert_throws_dom("HierarchyRequestError", () => insert(doc, doctype));
}, "If node is a doctype and parent is a document with an element, then throw a HierarchyRequestError DOMException.");
}
}
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