| <!DOCTYPE html> |
| <meta charset=utf-8> |
| <title>Node.replaceChild</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <body><a><b></b><c></c></a> |
| <div id="log"></div> |
| <!-- First test shared pre-insertion checks that work similarly for replaceChild |
| and insertBefore --> |
| <script> |
| var insertFunc = Node.prototype.replaceChild; |
| </script> |
| <script src="pre-insertion-checks.js"></script> |
| <script> |
| // IDL. |
| test(function() { |
| var a = document.createElement("div"); |
| assert_throws(new TypeError(), function() { |
| a.replaceChild(null, null); |
| }); |
| |
| var b = document.createElement("div"); |
| assert_throws(new TypeError(), function() { |
| a.replaceChild(b, null); |
| }); |
| assert_throws(new TypeError(), function() { |
| a.replaceChild(null, b); |
| }); |
| }, "Passing null to replaceChild should throw a TypeError.") |
| |
| // Step 3. |
| test(function() { |
| var a = document.createElement("div"); |
| var b = document.createElement("div"); |
| var c = document.createElement("div"); |
| assert_throws("NotFoundError", function() { |
| a.replaceChild(b, c); |
| }); |
| |
| var d = document.createElement("div"); |
| d.appendChild(b); |
| assert_throws("NotFoundError", function() { |
| a.replaceChild(b, c); |
| }); |
| assert_throws("NotFoundError", function() { |
| a.replaceChild(b, a); |
| }); |
| }, "If child's parent is not the context node, a NotFoundError exception should be thrown"); |
| |
| // Step 1. |
| test(function() { |
| var nodes = getNonParentNodes(); |
| |
| var a = document.createElement("div"); |
| var b = document.createElement("div"); |
| nodes.forEach(function(node) { |
| assert_throws("HierarchyRequestError", function() { |
| node.replaceChild(a, b); |
| }); |
| }); |
| }, "If the context node is not a node that can contain children, a HierarchyRequestError exception should be thrown") |
| |
| // Step 2. |
| test(function() { |
| var a = document.createElement("div"); |
| var b = document.createElement("div"); |
| |
| assert_throws("HierarchyRequestError", function() { |
| a.replaceChild(a, a); |
| }); |
| |
| a.appendChild(b); |
| assert_throws("HierarchyRequestError", function() { |
| a.replaceChild(a, b); |
| }); |
| |
| var c = document.createElement("div"); |
| c.appendChild(a); |
| assert_throws("HierarchyRequestError", function() { |
| a.replaceChild(c, b); |
| }); |
| }, "If node is an inclusive ancestor of the context node, a HierarchyRequestError should be thrown.") |
| |
| // Steps 4/5. |
| test(function() { |
| var doc = document.implementation.createHTMLDocument("title"); |
| var doc2 = document.implementation.createHTMLDocument("title2"); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(doc2, doc.documentElement); |
| }); |
| |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(doc.createTextNode("text"), doc.documentElement); |
| }); |
| }, "If the context node is a document, inserting a document or text node should throw a HierarchyRequestError.") |
| |
| // Step 6.1. |
| test(function() { |
| var doc = document.implementation.createHTMLDocument("title"); |
| |
| var df = doc.createDocumentFragment(); |
| df.appendChild(doc.createElement("a")); |
| df.appendChild(doc.createElement("b")); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(df, doc.documentElement); |
| }); |
| |
| df = doc.createDocumentFragment(); |
| df.appendChild(doc.createTextNode("text")); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(df, doc.documentElement); |
| }); |
| |
| df = doc.createDocumentFragment(); |
| df.appendChild(doc.createComment("comment")); |
| df.appendChild(doc.createTextNode("text")); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(df, doc.documentElement); |
| }); |
| }, "If the context node is a document, inserting a DocumentFragment that contains a text node or too many elements should throw a HierarchyRequestError.") |
| test(function() { |
| var doc = document.implementation.createHTMLDocument("title"); |
| doc.removeChild(doc.documentElement); |
| |
| var df = doc.createDocumentFragment(); |
| df.appendChild(doc.createElement("a")); |
| df.appendChild(doc.createElement("b")); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(df, doc.doctype); |
| }); |
| }, "If the context node is a document (without element children), inserting a DocumentFragment that contains multiple elements should throw a HierarchyRequestError.") |
| |
| // Step 6.1. |
| test(function() { |
| // The context node has an element child that is not /child/. |
| var doc = document.implementation.createHTMLDocument("title"); |
| var comment = doc.appendChild(doc.createComment("foo")); |
| assert_array_equals(doc.childNodes, [doc.doctype, doc.documentElement, comment]); |
| |
| var df = doc.createDocumentFragment(); |
| df.appendChild(doc.createElement("a")); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(df, comment); |
| }); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(df, doc.doctype); |
| }); |
| }, "If the context node is a document, inserting a DocumentFragment with an element if there already is an element child should throw a HierarchyRequestError.") |
| test(function() { |
| // A doctype is following /child/. |
| var doc = document.implementation.createHTMLDocument("title"); |
| var comment = doc.insertBefore(doc.createComment("foo"), doc.firstChild); |
| doc.removeChild(doc.documentElement); |
| assert_array_equals(doc.childNodes, [comment, doc.doctype]); |
| |
| var df = doc.createDocumentFragment(); |
| df.appendChild(doc.createElement("a")); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(df, comment); |
| }); |
| }, "If the context node is a document, inserting a DocumentFragment with an element before the doctype should throw a HierarchyRequestError.") |
| |
| // Step 6.2. |
| test(function() { |
| var doc = document.implementation.createHTMLDocument("title"); |
| var comment = doc.appendChild(doc.createComment("foo")); |
| assert_array_equals(doc.childNodes, [doc.doctype, doc.documentElement, comment]); |
| |
| var a = doc.createElement("a"); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(a, comment); |
| }); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(a, doc.doctype); |
| }); |
| }, "If the context node is a document, inserting an element if there already is an element child should throw a HierarchyRequestError.") |
| test(function() { |
| var doc = document.implementation.createHTMLDocument("title"); |
| var comment = doc.insertBefore(doc.createComment("foo"), doc.firstChild); |
| doc.removeChild(doc.documentElement); |
| assert_array_equals(doc.childNodes, [comment, doc.doctype]); |
| |
| var a = doc.createElement("a"); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(a, comment); |
| }); |
| }, "If the context node is a document, inserting an element before the doctype should throw a HierarchyRequestError.") |
| |
| // Step 6.3. |
| test(function() { |
| var doc = document.implementation.createHTMLDocument("title"); |
| var comment = doc.insertBefore(doc.createComment("foo"), doc.firstChild); |
| assert_array_equals(doc.childNodes, [comment, doc.doctype, doc.documentElement]); |
| |
| var doctype = document.implementation.createDocumentType("html", "", ""); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(doctype, comment); |
| }); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(doctype, doc.documentElement); |
| }); |
| }, "If the context node is a document, inserting a doctype if there already is a doctype child should throw a HierarchyRequestError.") |
| test(function() { |
| var doc = document.implementation.createHTMLDocument("title"); |
| var comment = doc.appendChild(doc.createComment("foo")); |
| doc.removeChild(doc.doctype); |
| assert_array_equals(doc.childNodes, [doc.documentElement, comment]); |
| |
| var doctype = document.implementation.createDocumentType("html", "", ""); |
| assert_throws("HierarchyRequestError", function() { |
| doc.replaceChild(doctype, comment); |
| }); |
| }, "If the context node is a document, inserting a doctype after the document element should throw a HierarchyRequestError.") |
| |
| // Steps 4/5. |
| test(function() { |
| var df = document.createDocumentFragment(); |
| var a = df.appendChild(document.createElement("a")); |
| |
| var doc = document.implementation.createHTMLDocument("title"); |
| assert_throws("HierarchyRequestError", function() { |
| df.replaceChild(doc, a); |
| }); |
| |
| var doctype = document.implementation.createDocumentType("html", "", ""); |
| assert_throws("HierarchyRequestError", function() { |
| df.replaceChild(doctype, a); |
| }); |
| }, "If the context node is a DocumentFragment, inserting a document or a doctype should throw a HierarchyRequestError.") |
| test(function() { |
| var el = document.createElement("div"); |
| var a = el.appendChild(document.createElement("a")); |
| |
| var doc = document.implementation.createHTMLDocument("title"); |
| assert_throws("HierarchyRequestError", function() { |
| el.replaceChild(doc, a); |
| }); |
| |
| var doctype = document.implementation.createDocumentType("html", "", ""); |
| assert_throws("HierarchyRequestError", function() { |
| el.replaceChild(doctype, a); |
| }); |
| }, "If the context node is an element, inserting a document or a doctype should throw a HierarchyRequestError.") |
| |
| // Step 6. |
| test(function() { |
| var a = document.createElement("div"); |
| var b = document.createElement("div"); |
| var c = document.createElement("div"); |
| a.appendChild(b); |
| a.appendChild(c); |
| assert_array_equals(a.childNodes, [b, c]); |
| assert_equals(a.replaceChild(c, b), b); |
| assert_array_equals(a.childNodes, [c]); |
| }, "Replacing a node with its next sibling should work (2 children)"); |
| test(function() { |
| var a = document.createElement("div"); |
| var b = document.createElement("div"); |
| var c = document.createElement("div"); |
| var d = document.createElement("div"); |
| var e = document.createElement("div"); |
| a.appendChild(b); |
| a.appendChild(c); |
| a.appendChild(d); |
| a.appendChild(e); |
| assert_array_equals(a.childNodes, [b, c, d, e]); |
| assert_equals(a.replaceChild(d, c), c); |
| assert_array_equals(a.childNodes, [b, d, e]); |
| }, "Replacing a node with its next sibling should work (4 children)"); |
| test(function() { |
| var a = document.createElement("div"); |
| var b = document.createElement("div"); |
| var c = document.createElement("div"); |
| a.appendChild(b); |
| a.appendChild(c); |
| assert_array_equals(a.childNodes, [b, c]); |
| assert_equals(a.replaceChild(b, b), b); |
| assert_array_equals(a.childNodes, [b, c]); |
| assert_equals(a.replaceChild(c, c), c); |
| assert_array_equals(a.childNodes, [b, c]); |
| }, "Replacing a node with itself should not move the node"); |
| |
| // Step 7. |
| test(function() { |
| var doc = document.implementation.createHTMLDocument("title"); |
| var doctype = doc.doctype; |
| assert_array_equals(doc.childNodes, [doctype, doc.documentElement]); |
| |
| var doc2 = document.implementation.createHTMLDocument("title2"); |
| var doctype2 = doc2.doctype; |
| assert_array_equals(doc2.childNodes, [doctype2, doc2.documentElement]); |
| |
| doc.replaceChild(doc2.doctype, doc.doctype); |
| assert_array_equals(doc.childNodes, [doctype2, doc.documentElement]); |
| assert_array_equals(doc2.childNodes, [doc2.documentElement]); |
| assert_equals(doctype.parentNode, null); |
| assert_equals(doctype.ownerDocument, doc); |
| assert_equals(doctype2.parentNode, doc); |
| assert_equals(doctype2.ownerDocument, doc); |
| }, "If the context node is a document, inserting a new doctype should work.") |
| |
| // Bugs. |
| test(function() { |
| var doc = document.implementation.createHTMLDocument("title"); |
| var df = doc.createDocumentFragment(); |
| var a = df.appendChild(doc.createElement("a")); |
| assert_equals(doc.documentElement, doc.replaceChild(df, doc.documentElement)); |
| assert_array_equals(doc.childNodes, [doc.doctype, a]); |
| }, "Replacing the document element with a DocumentFragment containing a single element should work."); |
| test(function() { |
| var doc = document.implementation.createHTMLDocument("title"); |
| var df = doc.createDocumentFragment(); |
| var a = df.appendChild(doc.createComment("a")); |
| var b = df.appendChild(doc.createElement("b")); |
| var c = df.appendChild(doc.createComment("c")); |
| assert_equals(doc.documentElement, doc.replaceChild(df, doc.documentElement)); |
| assert_array_equals(doc.childNodes, [doc.doctype, a, b, c]); |
| }, "Replacing the document element with a DocumentFragment containing a single element and comments should work."); |
| test(function() { |
| var doc = document.implementation.createHTMLDocument("title"); |
| var a = doc.createElement("a"); |
| assert_equals(doc.documentElement, doc.replaceChild(a, doc.documentElement)); |
| assert_array_equals(doc.childNodes, [doc.doctype, a]); |
| }, "Replacing the document element with a single element should work."); |
| test(function() { |
| document.addEventListener("DOMNodeRemoved", function(e) { |
| document.body.appendChild(document.createElement("x")); |
| }, false); |
| var a = document.body.firstChild, b = a.firstChild, c = b.nextSibling; |
| assert_equals(a.replaceChild(c, b), b); |
| assert_equals(b.parentNode, null); |
| assert_equals(a.firstChild, c); |
| assert_equals(c.parentNode, a); |
| }, "replaceChild should work in the presence of mutation events.") |
| test(function() { |
| var TEST_ID = "findme"; |
| var gBody = document.getElementsByTagName("body")[0]; |
| var parent = document.createElement("div"); |
| gBody.appendChild(parent); |
| var child = document.createElement("div"); |
| parent.appendChild(child); |
| var df = document.createDocumentFragment(); |
| var fragChild = df.appendChild(document.createElement("div")); |
| fragChild.setAttribute("id", TEST_ID); |
| parent.replaceChild(df, child); |
| assert_equals(document.getElementById(TEST_ID), fragChild, "should not be null"); |
| }, "Replacing an element with a DocumentFragment should allow a child of the DocumentFragment to be found by Id.") |
| |
| </script> |