def test_xmlschema_proxy(self):
context = XPathContext(root=self.etree.XML(
'<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"/>'))
self.wrong_syntax("schema-element(*)")
self.wrong_name("schema-element(nil)")
self.wrong_name("schema-element(xs:string)")
self.check_value("schema-element(xs:complexType)", MissingContextError)
self.check_value("self::schema-element(xs:complexType)", NameError,
context)
self.check_value("self::schema-element(xs:schema)", [context.item],
context)
self.check_tree("schema-element(xs:group)",
'(schema-element (: (xs) (group)))')
attribute = context.item = AttributeNode(XML_LANG, 'en')
self.wrong_syntax("schema-attribute(*)")
self.wrong_name("schema-attribute(nil)")
self.wrong_name("schema-attribute(xs:string)")
self.check_value("schema-attribute(xml:lang)", MissingContextError)
self.check_value("schema-attribute(xml:lang)", NameError, context)
self.check_value("self::schema-attribute(xml:lang)", [context.item],
context)
self.check_tree("schema-attribute(xsi:schemaLocation)",
'(schema-attribute (: (xsi) (schemaLocation)))')
token = self.parser.parse("self::schema-attribute(xml:lang)")
context.item = attribute
context.axis = 'attribute'
self.assertEqual(list(token.select(context)), [context.item])
def test_is_principal_node_kind(self):
root = ElementTree.XML('<A a1="10" a2="20"/>')
context = XPathContext(root)
self.assertTrue(hasattr(context.item.elem, 'tag'))
self.assertTrue(context.is_principal_node_kind())
context.item = context.root.attributes[0]
self.assertFalse(context.is_principal_node_kind())
context.axis = 'attribute'
self.assertTrue(context.is_principal_node_kind())
