from xml.etree import ElementTree as ET
try:
	from StringIO import StringIO
except ImportError: # python3000
	from io import StringIO
import unittest

class TestElementTree(unittest.TestCase):
    def test_cross_boundary(self):
        text = 'This is a very long string that will cross the page bounderies of 8K'
        buf = ['<?xml version="1.0" encoding="UTF-8"?>', '<a>']
        for _ in range(214): # this number depends on the chunk size in iterparse.next
            buf.append(' <b>' + text + '</b>')
        buf.append('</a>')
        for event, elem in ET.iterparse(StringIO('\n'.join(buf)), events=('start',)):
            if elem.tag == 'b':
                self.assertEqual(elem.text, text)

if __name__ == '__main__':
    unittest.main()