testlib.py 文件源码

def assertXMLWellFormed(self, stream, msg=None, context=2):
        """asserts the XML stream is well-formed (no DTD conformance check)

        :param context: number of context lines in standard message
                        (show all data if negative).
                        Only available with element tree
        """
        try:
            from xml.etree.ElementTree import parse
            self._assertETXMLWellFormed(stream, parse, msg)
        except ImportError:
            from xml.sax import make_parser, SAXParseException
            parser = make_parser()
            try:
                parser.parse(stream)
            except SAXParseException as ex:
                if msg is None:
                    stream.seek(0)
                    for _ in range(ex.getLineNumber()):
                        line = stream.readline()
                    pointer = ('' * (ex.getLineNumber() - 1)) + '^'
                    msg = 'XML stream not well formed: %s\n%s%s' % (ex, line, pointer)
                self.fail(msg)