test_pyexpat.py 文件源码

def test_unchanged_size(self):
        xml1 = ("<?xml version='1.0' encoding='iso8859'?><s>%s" % ('a' * 512))
        xml2 = 'a'*512 + '</s>'
        parser = expat.ParserCreate()
        parser.CharacterDataHandler = self.counting_handler
        parser.buffer_size = 512
        parser.buffer_text = 1

        # Feed 512 bytes of character data: the handler should be called
        # once.
        self.n = 0
        parser.Parse(xml1)
        self.assertEqual(self.n, 1)

        # Reassign to buffer_size, but assign the same size.
        parser.buffer_size = parser.buffer_size
        self.assertEqual(self.n, 1)

        # Try parsing rest of the document
        parser.Parse(xml2)
        self.assertEqual(self.n, 2)