def testNormalize(self):
doc = parseString("<doc/>")
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("<doc/>")
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()
python类childNodes()的实例源码
def testNormalizeCombineAndNextSibling(self):
doc = parseString("<doc/>")
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("<doc/>")
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("<doc/>")
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 testNormalizeDeleteAndCombine(self):
doc = parseString("<doc/>")
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 testAppendChild(self):
dom = parse(tstfile)
dom.documentElement.appendChild(dom.createComment("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(<fragment>)")
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(<fragment>)")
frag.unlink()
dom.unlink()
def testUnlink(self):
dom = parse(tstfile)
self.assertTrue(dom.childNodes)
dom.unlink()
self.assertFalse(dom.childNodes)
def testContext(self):
with parse(tstfile) as dom:
self.assertTrue(dom.childNodes)
self.assertFalse(dom.childNodes)
def test_toprettyxml_preserves_content_of_text_node(self):
# see issue #4147
for str in ('<B>A</B>', '<A><B>C</B></A>'):
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('<e><?mypi \t\n data \t\n ?></e>')
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 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() == '<doc attr="value"/>'
, "testCloneElementShallow")
dom.unlink()
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 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 testBug0777884(self):
doc = parseString("<o>text</o>")
text = doc.documentElement.childNodes[0]
self.assertEqual(text.nodeType, Node.TEXT_NODE)
# Should run quietly, doing nothing.
text.normalize()
doc.unlink()
def testSiblings(self):
doc = parseString("<doc><?pi?>text?<elm/></doc>")
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(
"<doc><elm1><elm2/><elm2><elm3/></elm2></elm1></doc>")
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("<doc><e/><e/></doc>")
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()
