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<!DOCTYPE html>
<title>Node.insertBefore</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<script>
function testLeafNode(nodeName, createNodeFunction) {
test(function() {
var node = createNodeFunction();
assert_throws(new TypeError(), function() { node.insertBefore(null, null) })
}, "Calling insertBefore with a non-Node first argument on a leaf node " + nodeName + " must throw TypeError.")
test(function() {
var node = createNodeFunction();
assert_throws("HIERARCHY_REQUEST_ERR", function() { node.insertBefore(document.createTextNode("fail"), null) })
// Would be step 2.
assert_throws("HIERARCHY_REQUEST_ERR", function() { node.insertBefore(node, null) })
// Would be step 3.
assert_throws("HIERARCHY_REQUEST_ERR", function() { node.insertBefore(node, document.createTextNode("child")) })
}, "Calling insertBefore an a leaf node " + nodeName + " must throw HIERARCHY_REQUEST_ERR.")
}
test(function() {
// WebIDL.
assert_throws(new TypeError(), function() { document.body.insertBefore(null, null) })
assert_throws(new TypeError(), function() { document.body.insertBefore(null, document.body.firstChild) })
assert_throws(new TypeError(), function() { document.body.insertBefore({'a':'b'}, document.body.firstChild) })
}, "Calling insertBefore with a non-Node first argument must throw TypeError.")
testLeafNode("DocumentType", function () { return document.doctype; } )
testLeafNode("Text", function () { return document.createTextNode("Foo") })
testLeafNode("Comment", function () { return document.createComment("Foo") })
testLeafNode("ProcessingInstruction", function () { return document.createProcessingInstruction("foo", "bar") })
test(function() {
// Step 2.
assert_throws("HIERARCHY_REQUEST_ERR", function() { document.body.insertBefore(document.body, document.getElementById("log")) })
assert_throws("HIERARCHY_REQUEST_ERR", function() { document.body.insertBefore(document.documentElement, document.getElementById("log")) })
}, "Calling insertBefore with an inclusive ancestor of the context object must throw HIERARCHY_REQUEST_ERR.")
// Step 3.
test(function() {
var a = document.createElement("div");
var b = document.createElement("div");
var c = document.createElement("div");
assert_throws("NotFoundError", function() {
a.insertBefore(b, c);
});
}, "Calling insertBefore with a reference child whose parent is not the context node must throw a NotFoundError.")
// Step 4.1.
test(function() {
var doc = document.implementation.createHTMLDocument("title");
var doc2 = document.implementation.createHTMLDocument("title2");
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(doc2, doc.documentElement);
});
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(doc.createTextNode("text"), doc.documentElement);
});
}, "If the context node is a document, inserting a document or text node should throw a HierarchyRequestError.")
// Step 4.2.1.
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.insertBefore(df, null);
});
df = doc.createDocumentFragment();
df.appendChild(doc.createTextNode("text"));
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(df, null);
});
df = doc.createDocumentFragment();
df.appendChild(doc.createComment("comment"));
df.appendChild(doc.createTextNode("text"));
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(df, null);
});
}, "If the context node is a document, appending 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.insertBefore(df, doc.firstChild);
});
df = doc.createDocumentFragment();
df.appendChild(doc.createTextNode("text"));
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(df, doc.firstChild);
});
df = doc.createDocumentFragment();
df.appendChild(doc.createComment("comment"));
df.appendChild(doc.createTextNode("text"));
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(df, doc.firstChild);
});
}, "If the context node is a document, inserting a DocumentFragment that contains a text node or too many elements should throw a HierarchyRequestError.")
// Step 4.2.2.
test(function() {
// The context node has an element 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.insertBefore(df, doc.doctype);
});
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(df, doc.documentElement);
});
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(df, comment);
});
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(df, null);
});
}, "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() {
// /child/ is a doctype.
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.insertBefore(df, doc.doctype);
});
}, "If the context node is a document and a doctype is following the reference child, inserting a DocumentFragment with an element should throw a HierarchyRequestError.")
test(function() {
// /child/ is not null and 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.insertBefore(df, comment);
});
}, "If the context node is a document, inserting a DocumentFragment with an element before the doctype should throw a HierarchyRequestError.")
// Step 4.3.
test(function() {
// The context node has an element 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 a = doc.createElement("a");
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(a, doc.doctype);
});
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(a, doc.documentElement);
});
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(a, comment);
});
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(a, null);
});
}, "If the context node is a document, inserting an element if there already is an element child should throw a HierarchyRequestError.")
test(function() {
// /child/ is a doctype.
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.insertBefore(a, doc.doctype);
});
}, "If the context node is a document, inserting an element before the doctype should throw a HierarchyRequestError.")
test(function() {
// /child/ is not null and 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 a = doc.createElement("a");
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(a, comment);
});
}, "If the context node is a document and a doctype is following the reference child, inserting an element should throw a HierarchyRequestError.")
// Step 4.4.
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.insertBefore(doctype, comment);
});
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(doctype, doc.doctype);
});
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(doctype, doc.documentElement);
});
assert_throws("HierarchyRequestError", function() {
doc.insertBefore(doctype, null);
});
}, "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.insertBefore(doctype, comment);
});
}, "If the context node is a document, inserting a doctype after the document element 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.insertBefore(doctype, null);
});
}, "If the context node is a document with and element child, appending a doctype should throw a HierarchyRequestError.")
// Step 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.insertBefore(doc, a);
});
assert_throws("HierarchyRequestError", function() {
df.insertBefore(doc, null);
});
var doctype = document.implementation.createDocumentType("html", "", "");
assert_throws("HierarchyRequestError", function() {
df.insertBefore(doctype, a);
});
assert_throws("HierarchyRequestError", function() {
df.insertBefore(doctype, null);
});
}, "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.insertBefore(doc, a);
});
assert_throws("HierarchyRequestError", function() {
el.insertBefore(doc, null);
});
var doctype = document.implementation.createDocumentType("html", "", "");
assert_throws("HierarchyRequestError", function() {
el.insertBefore(doctype, a);
});
assert_throws("HierarchyRequestError", function() {
el.insertBefore(doctype, null);
});
}, "If the context node is an element, inserting a document or a doctype should throw a HierarchyRequestError.")
// Step 7.
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.insertBefore(b, b), b);
assert_array_equals(a.childNodes, [b, c]);
assert_equals(a.insertBefore(c, c), c);
assert_array_equals(a.childNodes, [b, c]);
}, "Inserting a node before itself should not move the node");
</script>
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