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# test for xml.dom.minidom

import copy
import pickle
from StringIO import StringIO
from test.test_support import verbose, run_unittest, findfile
import unittest

import xml.dom
import xml.dom.minidom
import xml.parsers.expat

from xml.dom.minidom import parse, Node, Document, parseString
from xml.dom.minidom import getDOMImplementation


tstfile = findfile("test.xml", subdir="xmltestdata")
sample = ("\n"
          "\n"
          "  \n"
          "]> text\n"
          "   ")

# The tests of DocumentType importing use these helpers to construct
# the documents to work with, since not all DOM builders actually
# create the DocumentType nodes.
def create_doc_without_doctype(doctype=None):
    return getDOMImplementation().createDocument(None, "doc", doctype)

def create_nonempty_doctype():
    doctype = getDOMImplementation().createDocumentType("doc", None, None)
    doctype.entities._seq = []
    doctype.notations._seq = []
    notation = xml.dom.minidom.Notation("my-notation", None,
                                        "http://xml.python.org/notations/my")
    doctype.notations._seq.append(notation)
    entity = xml.dom.minidom.Entity("my-entity", None,
                                    "http://xml.python.org/entities/my",
                                    "my-notation")
    entity.version = "1.0"
    entity.encoding = "utf-8"
    entity.actualEncoding = "us-ascii"
    doctype.entities._seq.append(entity)
    return doctype

def create_doc_with_doctype():
    doctype = create_nonempty_doctype()
    doc = create_doc_without_doctype(doctype)
    doctype.entities.item(0).ownerDocument = doc
    doctype.notations.item(0).ownerDocument = doc
    return doc

class MinidomTest(unittest.TestCase):
    def confirm(self, test, testname = "Test"):
        self.assertTrue(test, testname)

    def checkWholeText(self, node, s):
        t = node.wholeText
        self.confirm(t == s, "looking for %s, found %s" % (repr(s), repr(t)))

    def testParseFromFile(self):
        dom = parse(StringIO(open(tstfile).read()))
        dom.unlink()
        self.confirm(isinstance(dom,Document))

    def testGetElementsByTagName(self):
        dom = parse(tstfile)
        self.confirm(dom.getElementsByTagName("LI") == \
                dom.documentElement.getElementsByTagName("LI"))
        dom.unlink()

    def testInsertBefore(self):
        dom = parseString("")
        root = dom.documentElement
        elem = root.childNodes[0]
        nelem = dom.createElement("element")
        root.insertBefore(nelem, elem)
        self.confirm(len(root.childNodes) == 2
                and root.childNodes.length == 2
                and root.childNodes[0] is nelem
                and root.childNodes.item(0) is nelem
                and root.childNodes[1] is elem
                and root.childNodes.item(1) is elem
                and root.firstChild is nelem
                and root.lastChild is elem
                and root.toxml() == ""
                , "testInsertBefore -- node properly placed in tree")
        nelem = dom.createElement("element")
        root.insertBefore(nelem, None)
        self.confirm(len(root.childNodes) == 3
                and root.childNodes.length == 3
                and root.childNodes[1] is elem
                and root.childNodes.item(1) is elem
                and root.childNodes[2] is nelem
                and root.childNodes.item(2) is nelem
                and root.lastChild is nelem
                and nelem.previousSibling is elem
                and root.toxml() == ""
                , "testInsertBefore -- node properly placed in tree")
        nelem2 = dom.createElement("bar")
        root.insertBefore(nelem2, nelem)
        self.confirm(len(root.childNodes) == 4
                and root.childNodes.length == 4
                and root.childNodes[2] is nelem2
                and root.childNodes.item(2) is nelem2
                and root.childNodes[3] is nelem
                and root.childNodes.item(3) is nelem
                and nelem2.nextSibling is nelem
                and nelem.previousSibling is nelem2
                and root.toxml() ==
                ""
                , "testInsertBefore -- node properly placed in tree")
        dom.unlink()

    def _create_fragment_test_nodes(self):
        dom = parseString("")
        orig = dom.createTextNode("original")
        c1 = dom.createTextNode("foo")
        c2 = dom.createTextNode("bar")
        c3 = dom.createTextNode("bat")
        dom.documentElement.appendChild(orig)
        frag = dom.createDocumentFragment()
        frag.appendChild(c1)
        frag.appendChild(c2)
        frag.appendChild(c3)
        return dom, orig, c1, c2, c3, frag

    def testInsertBeforeFragment(self):
        dom, orig, c1, c2, c3, frag = self._create_fragment_test_nodes()
        dom.documentElement.insertBefore(frag, None)
        self.confirm(tuple(dom.documentElement.childNodes) ==
                     (orig, c1, c2, c3),
                     "insertBefore(, None)")
        frag.unlink()
        dom.unlink()

        dom, orig, c1, c2, c3, frag = self._create_fragment_test_nodes()
        dom.documentElement.insertBefore(frag, orig)
        self.confirm(tuple(dom.documentElement.childNodes) ==
                     (c1, c2, c3, orig),
                     "insertBefore(, orig)")
        frag.unlink()
        dom.unlink()

    def testAppendChild(self):
        dom = parse(tstfile)
        dom.documentElement.appendChild(dom.createComment(u"Hello"))
        self.confirm(dom.documentElement.childNodes[-1].nodeName == "#comment")
        self.confirm(dom.documentElement.childNodes[-1].data == "Hello")
        dom.unlink()

    def testAppendChildFragment(self):
        dom, orig, c1, c2, c3, frag = self._create_fragment_test_nodes()
        dom.documentElement.appendChild(frag)
        self.confirm(tuple(dom.documentElement.childNodes) ==
                     (orig, c1, c2, c3),
                     "appendChild()")
        frag.unlink()
        dom.unlink()

    def testReplaceChildFragment(self):
        dom, orig, c1, c2, c3, frag = self._create_fragment_test_nodes()
        dom.documentElement.replaceChild(frag, orig)
        orig.unlink()
        self.confirm(tuple(dom.documentElement.childNodes) == (c1, c2, c3),
                "replaceChild()")
        frag.unlink()
        dom.unlink()

    def testLegalChildren(self):
        dom = Document()
        elem = dom.createElement('element')
        text = dom.createTextNode('text')
        self.assertRaises(xml.dom.HierarchyRequestErr, dom.appendChild, text)

        dom.appendChild(elem)
        self.assertRaises(xml.dom.HierarchyRequestErr, dom.insertBefore, text,
                          elem)
        self.assertRaises(xml.dom.HierarchyRequestErr, dom.replaceChild, text,
                          elem)

        nodemap = elem.attributes
        self.assertRaises(xml.dom.HierarchyRequestErr, nodemap.setNamedItem,
                          text)
        self.assertRaises(xml.dom.HierarchyRequestErr, nodemap.setNamedItemNS,
                          text)

        elem.appendChild(text)
        dom.unlink()

    def testNamedNodeMapSetItem(self):
        dom = Document()
        elem = dom.createElement('element')
        attrs = elem.attributes
        attrs["foo"] = "bar"
        a = attrs.item(0)
        self.confirm(a.ownerDocument is dom,
                "NamedNodeMap.__setitem__() sets ownerDocument")
        self.confirm(a.ownerElement is elem,
                "NamedNodeMap.__setitem__() sets ownerElement")
        self.confirm(a.value == "bar",
                "NamedNodeMap.__setitem__() sets value")
        self.confirm(a.nodeValue == "bar",
                "NamedNodeMap.__setitem__() sets nodeValue")
        elem.unlink()
        dom.unlink()

    def testNonZero(self):
        dom = parse(tstfile)
        self.confirm(dom)# should not be zero
        dom.appendChild(dom.createComment("foo"))
        self.confirm(not dom.childNodes[-1].childNodes)
        dom.unlink()

    def testUnlink(self):
        dom = parse(tstfile)
        dom.unlink()

    def testElement(self):
        dom = Document()
        dom.appendChild(dom.createElement("abc"))
        self.confirm(dom.documentElement)
        dom.unlink()

    def testAAA(self):
        dom = parseString("")
        el = dom.documentElement
        el.setAttribute("spam", "jam2")
        self.confirm(el.toxml() == '', "testAAA")
        a = el.getAttributeNode("spam")
        self.confirm(a.ownerDocument is dom,
                "setAttribute() sets ownerDocument")
        self.confirm(a.ownerElement is dom.documentElement,
                "setAttribute() sets ownerElement")
        dom.unlink()

    def testAAB(self):
        dom = parseString("")
        el = dom.documentElement
        el.setAttribute("spam", "jam")
        el.setAttribute("spam", "jam2")
        self.confirm(el.toxml() == '', "testAAB")
        dom.unlink()

    def testAddAttr(self):
        dom = Document()
        child = dom.appendChild(dom.createElement("abc"))

        child.setAttribute("def", "ghi")
        self.confirm(child.getAttribute("def") == "ghi")
        self.confirm(child.attributes["def"].value == "ghi")

        child.setAttribute("jkl", "mno")
        self.confirm(child.getAttribute("jkl") == "mno")
        self.confirm(child.attributes["jkl"].value == "mno")

        self.confirm(len(child.attributes) == 2)

        child.setAttribute("def", "newval")
        self.confirm(child.getAttribute("def") == "newval")
        self.confirm(child.attributes["def"].value == "newval")

        self.confirm(len(child.attributes) == 2)
        dom.unlink()

    def testDeleteAttr(self):
        dom = Document()
        child = dom.appendChild(dom.createElement("abc"))

        self.confirm(len(child.attributes) == 0)
        child.setAttribute("def", "ghi")
        self.confirm(len(child.attributes) == 1)
        del child.attributes["def"]
        self.confirm(len(child.attributes) == 0)
        dom.unlink()

    def testRemoveAttr(self):
        dom = Document()
        child = dom.appendChild(dom.createElement("abc"))

        child.setAttribute("def", "ghi")
        self.confirm(len(child.attributes) == 1)
        child.removeAttribute("def")
        self.confirm(len(child.attributes) == 0)
        dom.unlink()

    def testRemoveAttrNS(self):
        dom = Document()
        child = dom.appendChild(
                dom.createElementNS("http://www.python.org", "python:abc"))
        child.setAttributeNS("http://www.w3.org", "xmlns:python",
                                                "http://www.python.org")
        child.setAttributeNS("http://www.python.org", "python:abcattr", "foo")
        self.confirm(len(child.attributes) == 2)
        child.removeAttributeNS("http://www.python.org", "abcattr")
        self.confirm(len(child.attributes) == 1)
        dom.unlink()

    def testRemoveAttributeNode(self):
        dom = Document()
        child = dom.appendChild(dom.createElement("foo"))
        child.setAttribute("spam", "jam")
        self.confirm(len(child.attributes) == 1)
        node = child.getAttributeNode("spam")
        child.removeAttributeNode(node)
        self.confirm(len(child.attributes) == 0
                and child.getAttributeNode("spam") is None)
        dom.unlink()

    def testChangeAttr(self):
        dom = parseString("")
        el = dom.documentElement
        el.setAttribute("spam", "jam")
        self.confirm(len(el.attributes) == 1)
        el.setAttribute("spam", "bam")
        # Set this attribute to be an ID and make sure that doesn't change
        # when changing the value:
        el.setIdAttribute("spam")
        self.confirm(len(el.attributes) == 1
                and el.attributes["spam"].value == "bam"
                and el.attributes["spam"].nodeValue == "bam"
                and el.getAttribute("spam") == "bam"
                and el.getAttributeNode("spam").isId)
        el.attributes["spam"] = "ham"
        self.confirm(len(el.attributes) == 1
                and el.attributes["spam"].value == "ham"
                and el.attributes["spam"].nodeValue == "ham"
                and el.getAttribute("spam") == "ham"
                and el.attributes["spam"].isId)
        el.setAttribute("spam2", "bam")
        self.confirm(len(el.attributes) == 2
                and el.attributes["spam"].value == "ham"
                and el.attributes["spam"].nodeValue == "ham"
                and el.getAttribute("spam") == "ham"
                and el.attributes["spam2"].value == "bam"
                and el.attributes["spam2"].nodeValue == "bam"
                and el.getAttribute("spam2") == "bam")
        el.attributes["spam2"] = "bam2"
        self.confirm(len(el.attributes) == 2
                and el.attributes["spam"].value == "ham"
                and el.attributes["spam"].nodeValue == "ham"
                and el.getAttribute("spam") == "ham"
                and el.attributes["spam2"].value == "bam2"
                and el.attributes["spam2"].nodeValue == "bam2"
                and el.getAttribute("spam2") == "bam2")
        dom.unlink()

    def testGetElementsByTagNameNS(self):
        d="""
        
        """
        dom = parseString(d)
        elems = dom.getElementsByTagNameNS("http://pyxml.sf.net/minidom",
                                           "myelem")
        self.confirm(len(elems) == 1
                and elems[0].namespaceURI == "http://pyxml.sf.net/minidom"
                and elems[0].localName == "myelem"
                and elems[0].prefix == "minidom"
                and elems[0].tagName == "minidom:myelem"
                and elems[0].nodeName == "minidom:myelem")
        dom.unlink()

    def get_empty_nodelist_from_elements_by_tagName_ns_helper(self, doc, nsuri,
                                                              lname):
        nodelist = doc.getElementsByTagNameNS(nsuri, lname)
        self.confirm(len(nodelist) == 0)

    def testGetEmptyNodeListFromElementsByTagNameNS(self):
        doc = parseString('')
        self.get_empty_nodelist_from_elements_by_tagName_ns_helper(
            doc, 'http://xml.python.org/namespaces/a', 'localname')
        self.get_empty_nodelist_from_elements_by_tagName_ns_helper(
            doc, '*', 'splat')
        self.get_empty_nodelist_from_elements_by_tagName_ns_helper(
            doc, 'http://xml.python.org/namespaces/a', '*')

        doc = parseString('')
        self.get_empty_nodelist_from_elements_by_tagName_ns_helper(
            doc, "http://xml.python.org/splat", "not-there")
        self.get_empty_nodelist_from_elements_by_tagName_ns_helper(
            doc, "*", "not-there")
        self.get_empty_nodelist_from_elements_by_tagName_ns_helper(
            doc, "http://somewhere.else.net/not-there", "e")

    def testElementReprAndStr(self):
        dom = Document()
        el = dom.appendChild(dom.createElement("abc"))
        string1 = repr(el)
        string2 = str(el)
        self.confirm(string1 == string2)
        dom.unlink()

    def testElementReprAndStrUnicode(self):
        dom = Document()
        el = dom.appendChild(dom.createElement(u"abc"))
        string1 = repr(el)
        string2 = str(el)
        self.confirm(string1 == string2)
        dom.unlink()

    def testElementReprAndStrUnicodeNS(self):
        dom = Document()
        el = dom.appendChild(
            dom.createElementNS(u"http://www.slashdot.org", u"slash:abc"))
        string1 = repr(el)
        string2 = str(el)
        self.confirm(string1 == string2)
        self.confirm("slash:abc" in string1)
        dom.unlink()

    def testAttributeRepr(self):
        dom = Document()
        el = dom.appendChild(dom.createElement(u"abc"))
        node = el.setAttribute("abc", "def")
        self.confirm(str(node) == repr(node))
        dom.unlink()

    def testWriteXML(self):
        str = ''
        dom = parseString(str)
        domstr = dom.toxml()
        dom.unlink()
        self.confirm(str == domstr)

    def testAltNewline(self):
        str = '\n\n'
        dom = parseString(str)
        domstr = dom.toprettyxml(newl="\r\n")
        dom.unlink()
        self.confirm(domstr == str.replace("\n", "\r\n"))

    def test_toprettyxml_with_text_nodes(self):
        # see issue #4147, text nodes are not indented
        decl = '\n'
        self.assertEqual(parseString('A').toprettyxml(),
                         decl + 'A\n')
        self.assertEqual(parseString('AA').toprettyxml(),
                         decl + '\n\tA\n\tA\n\n')
        self.assertEqual(parseString('AA').toprettyxml(),
                         decl + '\n\tA\n\tA\n\n')
        self.assertEqual(parseString('AA').toprettyxml(),
                         decl + '\n\tA\n\tA\n\n')
        self.assertEqual(parseString('AAA').toprettyxml(),
                         decl + '\n\tA\n\tA\n\tA\n\n')

    def test_toprettyxml_with_adjacent_text_nodes(self):
        # see issue #4147, adjacent text nodes are indented normally
        dom = Document()
        elem = dom.createElement(u'elem')
        elem.appendChild(dom.createTextNode(u'TEXT'))
        elem.appendChild(dom.createTextNode(u'TEXT'))
        dom.appendChild(elem)
        decl = '\n'
        self.assertEqual(dom.toprettyxml(),
                         decl + '\n\tTEXT\n\tTEXT\n\n')

    def test_toprettyxml_preserves_content_of_text_node(self):
        # see issue #4147
        for str in ('A', 'C'):
            dom = parseString(str)
            dom2 = parseString(dom.toprettyxml())
            self.assertEqual(
                dom.getElementsByTagName('B')[0].childNodes[0].toxml(),
                dom2.getElementsByTagName('B')[0].childNodes[0].toxml())

    def testProcessingInstruction(self):
        dom = parseString('')
        pi = dom.documentElement.firstChild
        self.confirm(pi.target == "mypi"
                and pi.data == "data \t\n "
                and pi.nodeName == "mypi"
                and pi.nodeType == Node.PROCESSING_INSTRUCTION_NODE
                and pi.attributes is None
                and not pi.hasChildNodes()
                and len(pi.childNodes) == 0
                and pi.firstChild is None
                and pi.lastChild is None
                and pi.localName is None
                and pi.namespaceURI == xml.dom.EMPTY_NAMESPACE)

    def testTooManyDocumentElements(self):
        doc = parseString("")
        elem = doc.createElement("extra")
        # Should raise an exception when adding an extra document element.
        self.assertRaises(xml.dom.HierarchyRequestErr, doc.appendChild, elem)
        elem.unlink()
        doc.unlink()

    def testRemoveNamedItem(self):
        doc = parseString("")
        e = doc.documentElement
        attrs = e.attributes
        a1 = e.getAttributeNode("a")
        a2 = attrs.removeNamedItem("a")
        self.confirm(a1.isSameNode(a2))
        self.assertRaises(xml.dom.NotFoundErr, attrs.removeNamedItem, "a")

    def testRemoveNamedItemNS(self):
        doc = parseString("")
        e = doc.documentElement
        attrs = e.attributes
        a1 = e.getAttributeNodeNS("http://xml.python.org/", "b")
        a2 = attrs.removeNamedItemNS("http://xml.python.org/", "b")
        self.confirm(a1.isSameNode(a2))
        self.assertRaises(xml.dom.NotFoundErr, attrs.removeNamedItemNS,
                          "http://xml.python.org/", "b")

    def _testCloneElementCopiesAttributes(self, e1, e2, test):
        attrs1 = e1.attributes
        attrs2 = e2.attributes
        keys1 = attrs1.keys()
        keys2 = attrs2.keys()
        keys1.sort()
        keys2.sort()
        self.confirm(keys1 == keys2, "clone of element has same attribute keys")
        for i in range(len(keys1)):
            a1 = attrs1.item(i)
            a2 = attrs2.item(i)
            self.confirm(a1 is not a2
                    and a1.value == a2.value
                    and a1.nodeValue == a2.nodeValue
                    and a1.namespaceURI == a2.namespaceURI
                    and a1.localName == a2.localName
                    , "clone of attribute node has proper attribute values")
            self.confirm(a2.ownerElement is e2,
                    "clone of attribute node correctly owned")

    def _setupCloneElement(self, deep):
        dom = parseString("")
        root = dom.documentElement
        clone = root.cloneNode(deep)
        self._testCloneElementCopiesAttributes(
            root, clone, "testCloneElement" + (deep and "Deep" or "Shallow"))
        # mutilate the original so shared data is detected
        root.tagName = root.nodeName = "MODIFIED"
        root.setAttribute("attr", "NEW VALUE")
        root.setAttribute("added", "VALUE")
        return dom, clone

    def testCloneElementShallow(self):
        dom, clone = self._setupCloneElement(0)
        self.confirm(len(clone.childNodes) == 0
                and clone.childNodes.length == 0
                and clone.parentNode is None
                and clone.toxml() == ''
                , "testCloneElementShallow")
        dom.unlink()

    def testCloneElementDeep(self):
        dom, clone = self._setupCloneElement(1)
        self.confirm(len(clone.childNodes) == 1
                and clone.childNodes.length == 1
                and clone.parentNode is None
                and clone.toxml() == ''
                , "testCloneElementDeep")
        dom.unlink()

    def testCloneDocumentShallow(self):
        doc = parseString("\n"
                    ""
                    "\n"
                    "]>\n"
                    "")
        doc2 = doc.cloneNode(0)
        self.confirm(doc2 is None,
                "testCloneDocumentShallow:"
                " shallow cloning of documents makes no sense!")

    def testCloneDocumentDeep(self):
        doc = parseString("\n"
                    ""
                    "\n"
                    "]>\n"
                    "")
        doc2 = doc.cloneNode(1)
        self.confirm(not (doc.isSameNode(doc2) or doc2.isSameNode(doc)),
                "testCloneDocumentDeep: document objects not distinct")
        self.confirm(len(doc.childNodes) == len(doc2.childNodes),
                "testCloneDocumentDeep: wrong number of Document children")
        self.confirm(doc2.documentElement.nodeType == Node.ELEMENT_NODE,
                "testCloneDocumentDeep: documentElement not an ELEMENT_NODE")
        self.confirm(doc2.documentElement.ownerDocument.isSameNode(doc2),
            "testCloneDocumentDeep: documentElement owner is not new document")
        self.confirm(not doc.documentElement.isSameNode(doc2.documentElement),
                "testCloneDocumentDeep: documentElement should not be shared")
        if doc.doctype is not None:
            # check the doctype iff the original DOM maintained it
            self.confirm(doc2.doctype.nodeType == Node.DOCUMENT_TYPE_NODE,
                    "testCloneDocumentDeep: doctype not a DOCUMENT_TYPE_NODE")
            self.confirm(doc2.doctype.ownerDocument.isSameNode(doc2))
            self.confirm(not doc.doctype.isSameNode(doc2.doctype))

    def testCloneDocumentTypeDeepOk(self):
        doctype = create_nonempty_doctype()
        clone = doctype.cloneNode(1)
        self.confirm(clone is not None
                and clone.nodeName == doctype.nodeName
                and clone.name == doctype.name
                and clone.publicId == doctype.publicId
                and clone.systemId == doctype.systemId
                and len(clone.entities) == len(doctype.entities)
                and clone.entities.item(len(clone.entities)) is None
                and len(clone.notations) == len(doctype.notations)
                and clone.notations.item(len(clone.notations)) is None
                and len(clone.childNodes) == 0)
        for i in range(len(doctype.entities)):
            se = doctype.entities.item(i)
            ce = clone.entities.item(i)
            self.confirm((not se.isSameNode(ce))
                    and (not ce.isSameNode(se))
                    and ce.nodeName == se.nodeName
                    and ce.notationName == se.notationName
                    and ce.publicId == se.publicId
                    and ce.systemId == se.systemId
                    and ce.encoding == se.encoding
                    and ce.actualEncoding == se.actualEncoding
                    and ce.version == se.version)
        for i in range(len(doctype.notations)):
            sn = doctype.notations.item(i)
            cn = clone.notations.item(i)
            self.confirm((not sn.isSameNode(cn))
                    and (not cn.isSameNode(sn))
                    and cn.nodeName == sn.nodeName
                    and cn.publicId == sn.publicId
                    and cn.systemId == sn.systemId)

    def testCloneDocumentTypeDeepNotOk(self):
        doc = create_doc_with_doctype()
        clone = doc.doctype.cloneNode(1)
        self.confirm(clone is None, "testCloneDocumentTypeDeepNotOk")

    def testCloneDocumentTypeShallowOk(self):
        doctype = create_nonempty_doctype()
        clone = doctype.cloneNode(0)
        self.confirm(clone is not None
                and clone.nodeName == doctype.nodeName
                and clone.name == doctype.name
                and clone.publicId == doctype.publicId
                and clone.systemId == doctype.systemId
                and len(clone.entities) == 0
                and clone.entities.item(0) is None
                and len(clone.notations) == 0
                and clone.notations.item(0) is None
                and len(clone.childNodes) == 0)

    def testCloneDocumentTypeShallowNotOk(self):
        doc = create_doc_with_doctype()
        clone = doc.doctype.cloneNode(0)
        self.confirm(clone is None, "testCloneDocumentTypeShallowNotOk")

    def check_import_document(self, deep, testName):
        doc1 = parseString("")
        doc2 = parseString("")
        self.assertRaises(xml.dom.NotSupportedErr, doc1.importNode, doc2, deep)

    def testImportDocumentShallow(self):
        self.check_import_document(0, "testImportDocumentShallow")

    def testImportDocumentDeep(self):
        self.check_import_document(1, "testImportDocumentDeep")

    def testImportDocumentTypeShallow(self):
        src = create_doc_with_doctype()
        target = create_doc_without_doctype()
        self.assertRaises(xml.dom.NotSupportedErr, target.importNode,
                          src.doctype, 0)

    def testImportDocumentTypeDeep(self):
        src = create_doc_with_doctype()
        target = create_doc_without_doctype()
        self.assertRaises(xml.dom.NotSupportedErr, target.importNode,
                          src.doctype, 1)

    # Testing attribute clones uses a helper, and should always be deep,
    # even if the argument to cloneNode is false.
    def check_clone_attribute(self, deep, testName):
        doc = parseString("")
        attr = doc.documentElement.getAttributeNode("attr")
        self.assertNotEqual(attr, None)
        clone = attr.cloneNode(deep)
        self.confirm(not clone.isSameNode(attr))
        self.confirm(not attr.isSameNode(clone))
        self.confirm(clone.ownerElement is None,
                testName + ": ownerElement should be None")
        self.confirm(clone.ownerDocument.isSameNode(attr.ownerDocument),
                testName + ": ownerDocument does not match")
        self.confirm(clone.specified,
                testName + ": cloned attribute must have specified == True")

    def testCloneAttributeShallow(self):
        self.check_clone_attribute(0, "testCloneAttributeShallow")

    def testCloneAttributeDeep(self):
        self.check_clone_attribute(1, "testCloneAttributeDeep")

    def check_clone_pi(self, deep, testName):
        doc = parseString("")
        pi = doc.firstChild
        self.assertEqual(pi.nodeType, Node.PROCESSING_INSTRUCTION_NODE)
        clone = pi.cloneNode(deep)
        self.confirm(clone.target == pi.target
                and clone.data == pi.data)

    def testClonePIShallow(self):
        self.check_clone_pi(0, "testClonePIShallow")

    def testClonePIDeep(self):
        self.check_clone_pi(1, "testClonePIDeep")

    def testNormalize(self):
        doc = parseString("")
        root = doc.documentElement
        root.appendChild(doc.createTextNode("first"))
        root.appendChild(doc.createTextNode("second"))
        self.confirm(len(root.childNodes) == 2
                and root.childNodes.length == 2,
                "testNormalize -- preparation")
        doc.normalize()
        self.confirm(len(root.childNodes) == 1
                and root.childNodes.length == 1
                and root.firstChild is root.lastChild
                and root.firstChild.data == "firstsecond"
                , "testNormalize -- result")
        doc.unlink()

        doc = parseString("")
        root = doc.documentElement
        root.appendChild(doc.createTextNode(""))
        doc.normalize()
        self.confirm(len(root.childNodes) == 0
                and root.childNodes.length == 0,
                "testNormalize -- single empty node removed")
        doc.unlink()

    def testNormalizedAfterLoad(self):
        """
        Introduced this test on jython because 
        1. Cpython guarantees, by the use of xml.dom.expatbuilder, 
           that all text nodes are normalized after loading.
        2. Jython has no expat, and thus uses xml.dom.pulldom.parse 
           (which uses any java SAX2 compliant parser), and which makes 
           no guarantees about text node normalization.
        Thus we have to check if text nodes are normalized after a parse.
        See this bug for further information
        minidom chunks the character input on multi-line values
        http://bugs.jython.org/issue1614
        """
        num_lines = 2
        # Up to 16K lines should be enough to guarantee failure without normalization
        while num_lines <= 2**14:
            doc_content = "\n".join( ("Line %d" % i for i in xrange(num_lines)) )
            doc_text = "%s" % doc_content
            dom = parseString(doc_text)
            node_content = dom.getElementsByTagName("document")[0].childNodes[0].nodeValue
            self.confirm(node_content == doc_content, "testNormalizedAfterLoad")
            num_lines *= 2

    def testNormalizeCombineAndNextSibling(self):
        doc = parseString("")
        root = doc.documentElement
        root.appendChild(doc.createTextNode("first"))
        root.appendChild(doc.createTextNode("second"))
        root.appendChild(doc.createElement("i"))
        self.confirm(len(root.childNodes) == 3
                and root.childNodes.length == 3,
                "testNormalizeCombineAndNextSibling -- preparation")
        doc.normalize()
        self.confirm(len(root.childNodes) == 2
                and root.childNodes.length == 2
                and root.firstChild.data == "firstsecond"
                and root.firstChild is not root.lastChild
                and root.firstChild.nextSibling is root.lastChild
                and root.firstChild.previousSibling is None
                and root.lastChild.previousSibling is root.firstChild
                and root.lastChild.nextSibling is None
                , "testNormalizeCombinedAndNextSibling -- result")
        doc.unlink()

    def testNormalizeDeleteWithPrevSibling(self):
        doc = parseString("")
        root = doc.documentElement
        root.appendChild(doc.createTextNode("first"))
        root.appendChild(doc.createTextNode(""))
        self.confirm(len(root.childNodes) == 2
                and root.childNodes.length == 2,
                "testNormalizeDeleteWithPrevSibling -- preparation")
        doc.normalize()
        self.confirm(len(root.childNodes) == 1
                and root.childNodes.length == 1
                and root.firstChild.data == "first"
                and root.firstChild is root.lastChild
                and root.firstChild.nextSibling is None
                and root.firstChild.previousSibling is None
                , "testNormalizeDeleteWithPrevSibling -- result")
        doc.unlink()

    def testNormalizeDeleteWithNextSibling(self):
        doc = parseString("")
        root = doc.documentElement
        root.appendChild(doc.createTextNode(""))
        root.appendChild(doc.createTextNode("second"))
        self.confirm(len(root.childNodes) == 2
                and root.childNodes.length == 2,
                "testNormalizeDeleteWithNextSibling -- preparation")
        doc.normalize()
        self.confirm(len(root.childNodes) == 1
                and root.childNodes.length == 1
                and root.firstChild.data == "second"
                and root.firstChild is root.lastChild
                and root.firstChild.nextSibling is None
                and root.firstChild.previousSibling is None
                , "testNormalizeDeleteWithNextSibling -- result")
        doc.unlink()

    def testNormalizeDeleteWithTwoNonTextSiblings(self):
        doc = parseString("")
        root = doc.documentElement
        root.appendChild(doc.createElement("i"))
        root.appendChild(doc.createTextNode(""))
        root.appendChild(doc.createElement("i"))
        self.confirm(len(root.childNodes) == 3
                and root.childNodes.length == 3,
                "testNormalizeDeleteWithTwoSiblings -- preparation")
        doc.normalize()
        self.confirm(len(root.childNodes) == 2
                and root.childNodes.length == 2
                and root.firstChild is not root.lastChild
                and root.firstChild.nextSibling is root.lastChild
                and root.firstChild.previousSibling is None
                and root.lastChild.previousSibling is root.firstChild
                and root.lastChild.nextSibling is None
                , "testNormalizeDeleteWithTwoSiblings -- result")
        doc.unlink()

    def testNormalizeDeleteAndCombine(self):
        doc = parseString("")
        root = doc.documentElement
        root.appendChild(doc.createTextNode(""))
        root.appendChild(doc.createTextNode("second"))
        root.appendChild(doc.createTextNode(""))
        root.appendChild(doc.createTextNode("fourth"))
        root.appendChild(doc.createTextNode(""))
        self.confirm(len(root.childNodes) == 5
                and root.childNodes.length == 5,
                "testNormalizeDeleteAndCombine -- preparation")
        doc.normalize()
        self.confirm(len(root.childNodes) == 1
                and root.childNodes.length == 1
                and root.firstChild is root.lastChild
                and root.firstChild.data == "secondfourth"
                and root.firstChild.previousSibling is None
                and root.firstChild.nextSibling is None
                , "testNormalizeDeleteAndCombine -- result")
        doc.unlink()

    def testNormalizeRecursion(self):
        doc = parseString(""
                            ""
                              ""
                              "t"
                              #
                              #x
                            ""
                            ""
                              ""
                                "t2"
                                #x2
                              ""
                              "t3"
                              #x3
                            ""
                            #
                          "")
        root = doc.documentElement
        root.childNodes[0].appendChild(doc.createTextNode(""))
        root.childNodes[0].appendChild(doc.createTextNode("x"))
        root.childNodes[1].childNodes[0].appendChild(doc.createTextNode("x2"))
        root.childNodes[1].appendChild(doc.createTextNode("x3"))
        root.appendChild(doc.createTextNode(""))
        self.confirm(len(root.childNodes) == 3
                and root.childNodes.length == 3
                and len(root.childNodes[0].childNodes) == 4
                and root.childNodes[0].childNodes.length == 4
                and len(root.childNodes[1].childNodes) == 3
                and root.childNodes[1].childNodes.length == 3
                and len(root.childNodes[1].childNodes[0].childNodes) == 2
                and root.childNodes[1].childNodes[0].childNodes.length == 2
                , "testNormalize2 -- preparation")
        doc.normalize()
        self.confirm(len(root.childNodes) == 2
                and root.childNodes.length == 2
                and len(root.childNodes[0].childNodes) == 2
                and root.childNodes[0].childNodes.length == 2
                and len(root.childNodes[1].childNodes) == 2
                and root.childNodes[1].childNodes.length == 2
                and len(root.childNodes[1].childNodes[0].childNodes) == 1
                and root.childNodes[1].childNodes[0].childNodes.length == 1
                , "testNormalize2 -- childNodes lengths")
        self.confirm(root.childNodes[0].childNodes[1].data == "tx"
                and root.childNodes[1].childNodes[0].childNodes[0].data == "t2x2"
                and root.childNodes[1].childNodes[1].data == "t3x3"
                , "testNormalize2 -- joined text fields")
        self.confirm(root.childNodes[0].childNodes[1].nextSibling is None
                and root.childNodes[0].childNodes[1].previousSibling
                        is root.childNodes[0].childNodes[0]
                and root.childNodes[0].childNodes[0].previousSibling is None
                and root.childNodes[0].childNodes[0].nextSibling
                        is root.childNodes[0].childNodes[1]
                and root.childNodes[1].childNodes[1].nextSibling is None
                and root.childNodes[1].childNodes[1].previousSibling
                        is root.childNodes[1].childNodes[0]
                and root.childNodes[1].childNodes[0].previousSibling is None
                and root.childNodes[1].childNodes[0].nextSibling
                        is root.childNodes[1].childNodes[1]
                , "testNormalize2 -- sibling pointers")
        doc.unlink()


    def testBug0777884(self):
        doc = parseString("text")
        text = doc.documentElement.childNodes[0]
        self.assertEqual(text.nodeType, Node.TEXT_NODE)
        # Should run quietly, doing nothing.
        text.normalize()
        doc.unlink()

    def testBug1433694(self):
        doc = parseString("t")
        node = doc.documentElement
        node.childNodes[1].nodeValue = ""
        node.normalize()
        self.confirm(node.childNodes[-1].nextSibling is None,
                     "Final child's .nextSibling should be None")

    def testSiblings(self):
        doc = parseString("text?")
        root = doc.documentElement
        (pi, text, elm) = root.childNodes

        self.confirm(pi.nextSibling is text and
                pi.previousSibling is None and
                text.nextSibling is elm and
                text.previousSibling is pi and
                elm.nextSibling is None and
                elm.previousSibling is text, "testSiblings")

        doc.unlink()

    def testParents(self):
        doc = parseString(
            "")
        root = doc.documentElement
        elm1 = root.childNodes[0]
        (elm2a, elm2b) = elm1.childNodes
        elm3 = elm2b.childNodes[0]

        self.confirm(root.parentNode is doc and
                elm1.parentNode is root and
                elm2a.parentNode is elm1 and
                elm2b.parentNode is elm1 and
                elm3.parentNode is elm2b, "testParents")
        doc.unlink()

    def testNodeListItem(self):
        doc = parseString("")
        children = doc.childNodes
        docelem = children[0]
        self.confirm(children[0] is children.item(0)
                and children.item(1) is None
                and docelem.childNodes.item(0) is docelem.childNodes[0]
                and docelem.childNodes.item(1) is docelem.childNodes[1]
                and docelem.childNodes.item(0).childNodes.item(0) is None,
                "test NodeList.item()")
        doc.unlink()

    def testSAX2DOM(self):
        from xml.dom import pulldom

        sax2dom = pulldom.SAX2DOM()
        sax2dom.startDocument()
        sax2dom.startElement("doc", {})
        sax2dom.characters("text")
        sax2dom.startElement("subelm", {})
        sax2dom.characters("text")
        sax2dom.endElement("subelm")
        sax2dom.characters("text")
        sax2dom.endElement("doc")
        sax2dom.endDocument()

        doc = sax2dom.document
        root = doc.documentElement
        (text1, elm1, text2) = root.childNodes
        text3 = elm1.childNodes[0]

        self.confirm(text1.previousSibling is None and
                text1.nextSibling is elm1 and
                elm1.previousSibling is text1 and
                elm1.nextSibling is text2 and
                text2.previousSibling is elm1 and
                text2.nextSibling is None and
                text3.previousSibling is None and
                text3.nextSibling is None, "testSAX2DOM - siblings")

        self.confirm(root.parentNode is doc and
                text1.parentNode is root and
                elm1.parentNode is root and
                text2.parentNode is root and
                text3.parentNode is elm1, "testSAX2DOM - parents")
        doc.unlink()

    def testEncodings(self):
        doc = parseString('€')
        self.confirm(doc.toxml() == u'\u20ac'
                and doc.toxml('utf-8') ==
                '\xe2\x82\xac'
                and doc.toxml('iso-8859-15') ==
                '\xa4',
                "testEncodings - encoding EURO SIGN")

        # Verify that character decoding errors raise exceptions instead
        # of crashing
        self.assertRaises(UnicodeDecodeError, parseString,
                'Comment \xe7a va ? Tr\xe8s bien ?')

        doc.unlink()

    class UserDataHandler:
        called = 0
        def handle(self, operation, key, data, src, dst):
            dst.setUserData(key, data + 1, self)
            src.setUserData(key, None, None)
            self.called = 1

    def testUserData(self):
        dom = Document()
        n = dom.createElement('e')
        self.confirm(n.getUserData("foo") is None)
        n.setUserData("foo", None, None)
        self.confirm(n.getUserData("foo") is None)
        n.setUserData("foo", 12, 12)
        n.setUserData("bar", 13, 13)
        self.confirm(n.getUserData("foo") == 12)
        self.confirm(n.getUserData("bar") == 13)
        n.setUserData("foo", None, None)
        self.confirm(n.getUserData("foo") is None)
        self.confirm(n.getUserData("bar") == 13)

        handler = self.UserDataHandler()
        n.setUserData("bar", 12, handler)
        c = n.cloneNode(1)
        self.confirm(handler.called
                and n.getUserData("bar") is None
                and c.getUserData("bar") == 13)
        n.unlink()
        c.unlink()
        dom.unlink()

    def checkRenameNodeSharedConstraints(self, doc, node):
        # Make sure illegal NS usage is detected:
        self.assertRaises(xml.dom.NamespaceErr, doc.renameNode, node,
                          "http://xml.python.org/ns", "xmlns:foo")
        doc2 = parseString("")
        self.assertRaises(xml.dom.WrongDocumentErr, doc2.renameNode, node,
                          xml.dom.EMPTY_NAMESPACE, "foo")

    def testRenameAttribute(self):
        doc = parseString("")
        elem = doc.documentElement
        attrmap = elem.attributes
        attr = elem.attributes['a']

        # Simple renaming
        attr = doc.renameNode(attr, xml.dom.EMPTY_NAMESPACE, "b")
        self.confirm(attr.name == "b"
                and attr.nodeName == "b"
                and attr.localName is None
                and attr.namespaceURI == xml.dom.EMPTY_NAMESPACE
                and attr.prefix is None
                and attr.value == "v"
                and elem.getAttributeNode("a") is None
                and elem.getAttributeNode("b").isSameNode(attr)
                and attrmap["b"].isSameNode(attr)
                and attr.ownerDocument.isSameNode(doc)
                and attr.ownerElement.isSameNode(elem))

        # Rename to have a namespace, no prefix
        attr = doc.renameNode(attr, "http://xml.python.org/ns", "c")
        self.confirm(attr.name == "c"
                and attr.nodeName == "c"
                and attr.localName == "c"
                and attr.namespaceURI == "http://xml.python.org/ns"
                and attr.prefix is None
                and attr.value == "v"
                and elem.getAttributeNode("a") is None
                and elem.getAttributeNode("b") is None
                and elem.getAttributeNode("c").isSameNode(attr)
                and elem.getAttributeNodeNS(
                    "http://xml.python.org/ns", "c").isSameNode(attr)
                and attrmap["c"].isSameNode(attr)
                and attrmap[("http://xml.python.org/ns", "c")].isSameNode(attr))

        # Rename to have a namespace, with prefix
        attr = doc.renameNode(attr, "http://xml.python.org/ns2", "p:d")
        self.confirm(attr.name == "p:d"
                and attr.nodeName == "p:d"
                and attr.localName == "d"
                and attr.namespaceURI == "http://xml.python.org/ns2"
                and attr.prefix == "p"
                and attr.value == "v"
                and elem.getAttributeNode("a") is None
                and elem.getAttributeNode("b") is None
                and elem.getAttributeNode("c") is None
                and elem.getAttributeNodeNS(
                    "http://xml.python.org/ns", "c") is None
                and elem.getAttributeNode("p:d").isSameNode(attr)
                and elem.getAttributeNodeNS(
                    "http://xml.python.org/ns2", "d").isSameNode(attr)
                and attrmap["p:d"].isSameNode(attr)
                and attrmap[("http://xml.python.org/ns2", "d")].isSameNode(attr))

        # Rename back to a simple non-NS node
        attr = doc.renameNode(attr, xml.dom.EMPTY_NAMESPACE, "e")
        self.confirm(attr.name == "e"
                and attr.nodeName == "e"
                and attr.localName is None
                and attr.namespaceURI == xml.dom.EMPTY_NAMESPACE
                and attr.prefix is None
                and attr.value == "v"
                and elem.getAttributeNode("a") is None
                and elem.getAttributeNode("b") is None
                and elem.getAttributeNode("c") is None
                and elem.getAttributeNode("p:d") is None
                and elem.getAttributeNodeNS(
                    "http://xml.python.org/ns", "c") is None
                and elem.getAttributeNode("e").isSameNode(attr)
                and attrmap["e"].isSameNode(attr))

        self.assertRaises(xml.dom.NamespaceErr, doc.renameNode, attr,
                          "http://xml.python.org/ns", "xmlns")
        self.checkRenameNodeSharedConstraints(doc, attr)
        doc.unlink()

    def testRenameElement(self):
        doc = parseString("")
        elem = doc.documentElement

        # Simple renaming
        elem = doc.renameNode(elem, xml.dom.EMPTY_NAMESPACE, "a")
        self.confirm(elem.tagName == "a"
                and elem.nodeName == "a"
                and elem.localName is None
                and elem.namespaceURI == xml.dom.EMPTY_NAMESPACE
                and elem.prefix is None
                and elem.ownerDocument.isSameNode(doc))

        # Rename to have a namespace, no prefix
        elem = doc.renameNode(elem, "http://xml.python.org/ns", "b")
        self.confirm(elem.tagName == "b"
                and elem.nodeName == "b"
                and elem.localName == "b"
                and elem.namespaceURI == "http://xml.python.org/ns"
                and elem.prefix is None
                and elem.ownerDocument.isSameNode(doc))

        # Rename to have a namespace, with prefix
        elem = doc.renameNode(elem, "http://xml.python.org/ns2", "p:c")
        self.confirm(elem.tagName == "p:c"
                and elem.nodeName == "p:c"
                and elem.localName == "c"
                and elem.namespaceURI == "http://xml.python.org/ns2"
                and elem.prefix == "p"
                and elem.ownerDocument.isSameNode(doc))

        # Rename back to a simple non-NS node
        elem = doc.renameNode(elem, xml.dom.EMPTY_NAMESPACE, "d")
        self.confirm(elem.tagName == "d"
                and elem.nodeName == "d"
                and elem.localName is None
                and elem.namespaceURI == xml.dom.EMPTY_NAMESPACE
                and elem.prefix is None
                and elem.ownerDocument.isSameNode(doc))

        self.checkRenameNodeSharedConstraints(doc, elem)
        doc.unlink()

    def testRenameOther(self):
        # We have to create a comment node explicitly since not all DOM
        # builders used with minidom add comments to the DOM.
        doc = xml.dom.minidom.getDOMImplementation().createDocument(
            xml.dom.EMPTY_NAMESPACE, "e", None)
        node = doc.createComment("comment")
        self.assertRaises(xml.dom.NotSupportedErr, doc.renameNode, node,
                          xml.dom.EMPTY_NAMESPACE, "foo")
        doc.unlink()

    def testWholeText(self):
        doc = parseString("a")
        elem = doc.documentElement
        text = elem.childNodes[0]
        self.assertEqual(text.nodeType, Node.TEXT_NODE)

        self.checkWholeText(text, "a")
        elem.appendChild(doc.createTextNode("b"))
        self.checkWholeText(text, "ab")
        elem.insertBefore(doc.createCDATASection("c"), text)
        self.checkWholeText(text, "cab")

        # make sure we don't cross other nodes
        splitter = doc.createComment("comment")
        elem.appendChild(splitter)
        text2 = doc.createTextNode("d")
        elem.appendChild(text2)
        self.checkWholeText(text, "cab")
        self.checkWholeText(text2, "d")

        x = doc.createElement("x")
        elem.replaceChild(x, splitter)
        splitter = x
        self.checkWholeText(text, "cab")
        self.checkWholeText(text2, "d")

        x = doc.createProcessingInstruction("y", "z")
        elem.replaceChild(x, splitter)
        splitter = x
        self.checkWholeText(text, "cab")
        self.checkWholeText(text2, "d")

        elem.removeChild(splitter)
        self.checkWholeText(text, "cabd")
        self.checkWholeText(text2, "cabd")

    def testPatch1094164(self):
        doc = parseString("")
        elem = doc.documentElement
        e = elem.firstChild
        self.confirm(e.parentNode is elem, "Before replaceChild()")
        # Check that replacing a child with itself leaves the tree unchanged
        elem.replaceChild(e, e)
        self.confirm(e.parentNode is elem, "After replaceChild()")

    def testReplaceWholeText(self):
        def setup():
            doc = parseString("ad")
            elem = doc.documentElement
            text1 = elem.firstChild
            text2 = elem.lastChild
            splitter = text1.nextSibling
            elem.insertBefore(doc.createTextNode("b"), splitter)
            elem.insertBefore(doc.createCDATASection("c"), text1)
            return doc, elem, text1, splitter, text2

        doc, elem, text1, splitter, text2 = setup()
        text = text1.replaceWholeText("new content")
        self.checkWholeText(text, "new content")
        self.checkWholeText(text2, "d")
        self.confirm(len(elem.childNodes) == 3)

        doc, elem, text1, splitter, text2 = setup()
        text = text2.replaceWholeText("new content")
        self.checkWholeText(text, "new content")
        self.checkWholeText(text1, "cab")
        self.confirm(len(elem.childNodes) == 5)

        doc, elem, text1, splitter, text2 = setup()
        text = text1.replaceWholeText("")
        self.checkWholeText(text2, "d")
        self.confirm(text is None
                and len(elem.childNodes) == 2)

    def testSchemaType(self):
        doc = parseString(
            "\n"
            "  \n"
            "  \n"
            "]>")
        elem = doc.documentElement
        # We don't want to rely on any specific loader at this point, so
        # just make sure we can get to all the names, and that the
        # DTD-based namespace is right.  The names can vary by loader
        # since each supports a different level of DTD information.
        t = elem.schemaType
        self.confirm(t.name is None
                and t.namespace == xml.dom.EMPTY_NAMESPACE)
        names = "id notid text enum ref refs ent ents nm nms".split()
        for name in names:
            a = elem.getAttributeNode(name)
            t = a.schemaType
            self.confirm(hasattr(t, "name")
                    and t.namespace == xml.dom.EMPTY_NAMESPACE)

    def testSetIdAttribute(self):
        doc = parseString("")
        e = doc.documentElement
        a1 = e.getAttributeNode("a1")
        a2 = e.getAttributeNode("a2")
        self.confirm(doc.getElementById("v") is None
                and not a1.isId
                and not a2.isId)
        e.setIdAttribute("a1")
        self.confirm(e.isSameNode(doc.getElementById("v"))
                and a1.isId
                and not a2.isId)
        e.setIdAttribute("a2")
        self.confirm(e.isSameNode(doc.getElementById("v"))
                and e.isSameNode(doc.getElementById("w"))
                and a1.isId
                and a2.isId)
        # replace the a1 node; the new node should *not* be an ID
        a3 = doc.createAttribute("a1")
        a3.value = "v"
        e.setAttributeNode(a3)
        self.confirm(doc.getElementById("v") is None
                and e.isSameNode(doc.getElementById("w"))
                and not a1.isId
                and a2.isId
                and not a3.isId)
        # renaming an attribute should not affect its ID-ness:
        doc.renameNode(a2, xml.dom.EMPTY_NAMESPACE, "an")
        self.confirm(e.isSameNode(doc.getElementById("w"))
                and a2.isId)

    def testSetIdAttributeNS(self):
        NS1 = "http://xml.python.org/ns1"
        NS2 = "http://xml.python.org/ns2"
        doc = parseString("")
        e = doc.documentElement
        a1 = e.getAttributeNodeNS(NS1, "a1")
        a2 = e.getAttributeNodeNS(NS2, "a2")
        self.confirm(doc.getElementById("v") is None
                and not a1.isId
                and not a2.isId)
        e.setIdAttributeNS(NS1, "a1")
        self.confirm(e.isSameNode(doc.getElementById("v"))
                and a1.isId
                and not a2.isId)
        e.setIdAttributeNS(NS2, "a2")
        self.confirm(e.isSameNode(doc.getElementById("v"))
                and e.isSameNode(doc.getElementById("w"))
                and a1.isId
                and a2.isId)
        # replace the a1 node; the new node should *not* be an ID
        a3 = doc.createAttributeNS(NS1, "a1")
        a3.value = "v"
        e.setAttributeNode(a3)
        self.confirm(e.isSameNode(doc.getElementById("w")))
        self.confirm(not a1.isId)
        self.confirm(a2.isId)
        self.confirm(not a3.isId)
        self.confirm(doc.getElementById("v") is None)
        # renaming an attribute should not affect its ID-ness:
        doc.renameNode(a2, xml.dom.EMPTY_NAMESPACE, "an")
        self.confirm(e.isSameNode(doc.getElementById("w"))
                and a2.isId)

    def testSetIdAttributeNode(self):
        NS1 = "http://xml.python.org/ns1"
        NS2 = "http://xml.python.org/ns2"
        doc = parseString("")
        e = doc.documentElement
        a1 = e.getAttributeNodeNS(NS1, "a1")
        a2 = e.getAttributeNodeNS(NS2, "a2")
        self.confirm(doc.getElementById("v") is None
                and not a1.isId
                and not a2.isId)
        e.setIdAttributeNode(a1)
        self.confirm(e.isSameNode(doc.getElementById("v"))
                and a1.isId
                and not a2.isId)
        e.setIdAttributeNode(a2)
        self.confirm(e.isSameNode(doc.getElementById("v"))
                and e.isSameNode(doc.getElementById("w"))
                and a1.isId
                and a2.isId)
        # replace the a1 node; the new node should *not* be an ID
        a3 = doc.createAttributeNS(NS1, "a1")
        a3.value = "v"
        e.setAttributeNode(a3)
        self.confirm(e.isSameNode(doc.getElementById("w")))
        self.confirm(not a1.isId)
        self.confirm(a2.isId)
        self.confirm(not a3.isId)
        self.confirm(doc.getElementById("v") is None)
        # renaming an attribute should not affect its ID-ness:
        doc.renameNode(a2, xml.dom.EMPTY_NAMESPACE, "an")
        self.confirm(e.isSameNode(doc.getElementById("w"))
                and a2.isId)

    def assert_recursive_equal(self, doc, doc2):
        stack = [(doc, doc2)]
        while stack:
            n1, n2 = stack.pop()
            self.assertEqual(n1.nodeType, n2.nodeType)
            self.assertEqual(len(n1.childNodes), len(n2.childNodes))
            self.assertEqual(n1.nodeName, n2.nodeName)
            self.assertFalse(n1.isSameNode(n2))
            self.assertFalse(n2.isSameNode(n1))
            if n1.nodeType == Node.DOCUMENT_TYPE_NODE:
                len(n1.entities)
                len(n2.entities)
                len(n1.notations)
                len(n2.notations)
                self.assertEqual(len(n1.entities), len(n2.entities))
                self.assertEqual(len(n1.notations), len(n2.notations))
                for i in range(len(n1.notations)):
                    # XXX this loop body doesn't seem to be executed?
                    no1 = n1.notations.item(i)
                    no2 = n1.notations.item(i)
                    self.assertEqual(no1.name, no2.name)
                    self.assertEqual(no1.publicId, no2.publicId)
                    self.assertEqual(no1.systemId, no2.systemId)
                    stack.append((no1, no2))
                for i in range(len(n1.entities)):
                    e1 = n1.entities.item(i)
                    e2 = n2.entities.item(i)
                    self.assertEqual(e1.notationName, e2.notationName)
                    self.assertEqual(e1.publicId, e2.publicId)
                    self.assertEqual(e1.systemId, e2.systemId)
                    stack.append((e1, e2))
            if n1.nodeType != Node.DOCUMENT_NODE:
                self.assertTrue(n1.ownerDocument.isSameNode(doc))
                self.assertTrue(n2.ownerDocument.isSameNode(doc2))
            for i in range(len(n1.childNodes)):
                stack.append((n1.childNodes[i], n2.childNodes[i]))

    def testPickledDocument(self):
        doc = parseString(sample)
        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
            s = pickle.dumps(doc, proto)
            doc2 = pickle.loads(s)
            self.assert_recursive_equal(doc, doc2)

    def testDeepcopiedDocument(self):
        doc = parseString(sample)
        doc2 = copy.deepcopy(doc)
        self.assert_recursive_equal(doc, doc2)

    def testSerializeCommentNodeWithDoubleHyphen(self):
        doc = create_doc_without_doctype()
        doc.appendChild(doc.createComment("foo--bar"))
        self.assertRaises(ValueError, doc.toxml)

    def testEmptyXMLNSValue(self):
        doc = parseString("\n"
                          "\n")
        doc2 = parseString(doc.toxml())
        self.confirm(doc2.namespaceURI == xml.dom.EMPTY_NAMESPACE)


def test_main():
    run_unittest(MinidomTest)

if __name__ == "__main__":
    test_main()
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