| /** |
| * 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."); |
| } |
| } |