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