text: import unittest, sys
  from lxml.tests.common_imports import make_doctest, doctest
  import lxml.html
  from lxml.html import html_parser, XHTML_NAMESPACE
  
  class FrameTest(unittest.TestCase):
  
      def test_parse_fragments_fromstring(self):
          parser = lxml.html.HTMLParser(encoding='utf-8', remove_comments=True)
          html = """<frameset>
              <frame src="main.php" name="srcpg" id="srcpg" frameborder="0" rolling="Auto" marginwidth="" marginheight="0">
          </frameset>"""
          etree_document = lxml.html.fragments_fromstring(html, parser=parser)
          self.assertEqual(len(etree_document), 1)
          root = etree_document[0]
          self.assertEqual(root.tag, "frameset")
          frame_element = root[0]
          self.assertEqual(frame_element.tag, 'frame')
  
      def test_parse_fromstring(self):
          parser = lxml.html.HTMLParser(encoding='utf-8', remove_comments=True)
          html = """<html><frameset>
              <frame src="main.php" name="srcpg" id="srcpg" frameborder="0" rolling="Auto" marginwidth="" marginheight="0">
          </frameset></html>"""
          etree_document = lxml.html.fromstring(html, parser=parser)
          self.assertEqual(etree_document.tag, 'html')
          self.assertEqual(len(etree_document), 1)
          frameset_element = etree_document[0]
          self.assertEqual(len(frameset_element), 1)
          frame_element = frameset_element[0]
          self.assertEqual(frame_element.tag, 'frame')
  
  
  def test_suite():
      loader = unittest.TestLoader()
      return loader.loadTestsFromModule(sys.modules[__name__])