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<!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>
<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 1.
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")
test(function() {
var nodes = [
document.implementation.createDocumentType("html", "", ""),
document.createTextNode("text"),
document.implementation.createDocument(null, "foo", null).createProcessingInstruction("foo", "bar"),
document.createComment("comment")
];
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 NotFoundError 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.")
// Step 3.1.
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 3.2.1.
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 3.2.2.
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 3.3.
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 3.4.
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.")
// Step 4.
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>
|
