def testAppendChildDocument(self):
doc1 = Document()
n1 = Element(doc1, "foo")
doc2 = Document()
self.assertFalse(doc1.canAppendChild(doc2))
self.assertFalse(n1.canAppendChild(doc1))
self.assertFalse(n1.canAppendChild(doc2))
def testAppendChildRootElement(self):
document = Document()
element1 = Element("foo")
element2 = Element("bar")
document.appendChild(element1)
self.assertEqual(document.rootElement, element1)
self.assertFalse(document.canAppendChild(element2))
self.assertIsNone(document.appendChild(element2))
def testAppendChildRootElement(self):
doc = Document()
n1 = Element(doc, "foo")
n2 = Element(n1, "bar")
self.assertEqual(doc.rootElement, n1)
self.assertFalse(doc.canAppendChild(n2))