Package lxml :: Package tests :: Module test_doctestcompare |
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# Source Code for Module lxml.tests.test_doctestcompare

     1  import sys
     2  import unittest
     3
     4  from lxml import etree
     5  from lxml.tests.common_imports import HelperTestCase
     6  from lxml.doctestcompare import LXMLOutputChecker, PARSE_HTML, PARSE_XML
     7
     8
     9 -class DummyInput:
    10 -    def __init__(self, **kw):
    11          for name, value in kw.items():
    12              setattr(self, name, value)
    13
    14
    15 -def indent(elem, level=0):
    16      i = "\n" + level*"  "
    17      if len(elem):
    18          if not elem.text or not elem.text.strip():
    19              elem.text = i + "  "
    20          if not elem.tail or not elem.tail.strip():
    21              elem.tail = i
    22          for elem in elem:
    23              indent(elem, level+1)
    24          if not elem.tail or not elem.tail.strip():
    25              elem.tail = i
    26      else:
    27          if level and (not elem.tail or not elem.tail.strip()):
    28              elem.tail = i
    29
    30
    31 -class DoctestCompareTest(HelperTestCase):
    32      _checker = LXMLOutputChecker()
    33
    34 -    def compare(self, want, got, html=False):
    35          if html:
    36              options = PARSE_HTML
    37          else:
    38              options = PARSE_XML
    39
    40          parse = self._checker.get_parser(want, got, options)
    41          want_doc = parse(want)
    42          got_doc = parse(got)
    43          return self._checker.collect_diff(
    44              want_doc, got_doc, html, indent=0).lstrip()
    45
    46 -    def assert_diff(self, want, got, diff, html=False):
    47          self.assertEqual(self.compare(want, got, html), diff)
    48
    49 -    def assert_nodiff(self, want, got, html=False):
    50          root = etree.fromstring(want)
    51          root.tail = '\n'
    52          indent(root)
    53          diff = etree.tostring(
    54              root, encoding='unicode', method=html and 'html' or 'xml')
    55          self.assert_diff(want, got, diff, html=html)
    56
    57 -    def test_equal_input(self):
    58          self.assert_nodiff(
    59              '<p title="expected">Expected</p>',
    60              '<p title="expected">Expected</p>')
    61
    62 -    def test_differing_tags(self):
    63          self.assert_diff(
    64              '<p title="expected">Expected</p>',
    65              '<b title="expected">Expected</b>',
    66              '<p (got: b) title="expected">Expected</p (got: b)>\n')
    67
    68 -    def test_tags_upper_lower_case(self):
    69          self.assert_diff(
    70              '<p title="expected">Expected</p>',
    71              '<P title="expected">Expected</P>',
    72              '<p (got: P) title="expected">Expected</p (got: P)>\n')
    73
    74 -    def test_tags_upper_lower_case_html(self):
    75          self.assert_nodiff(
    76              '<html><body><p title="expected">Expected</p></body></html>',
    77              '<HTML><BODY><P title="expected">Expected</P></BODY></HTML>',
    78              html=True)
    79
    80 -    def test_differing_attributes(self):
    81          self.assert_diff(
    82              '<p title="expected">Expected</p>',
    83              '<p title="actual">Actual</p>',
    84              '<p title="expected (got: actual)">Expected (got: Actual)</p>\n')
    85
    86
    87 -def test_suite():
    88      suite = unittest.TestSuite()
    89      if sys.version_info >= (2,4):
    90          suite.addTests([unittest.makeSuite(DoctestCompareTest)])
    91      return suite
    92
    93
    94  if __name__ == '__main__':
    95      unittest.main()
    96