Package lxml :: Package tests :: Module test_css

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# Source Code for Module lxml.tests.test_css

      1  import unittest, sys
      2  from lxml.tests.common_imports import doctest, make_doctest, HelperTestCase
      3  from lxml import html
      4  from lxml import cssselect
      5  import os
      6
      7  doc_fn = os.path.join(os.path.dirname(__file__),
      8                        'css_shakespear.html')
      9
     10  try:
     11      basestring = __builtins__['basestring']
     12  except (NameError, KeyError):
     13      basestring = (str, bytes)
     14
     15  # Data borrowed from http://mootools.net/slickspeed/
     16
     17 -class CSSTestCase(HelperTestCase):
     18
     19      selectors = [
     20          ## Changed from original; probably because I'm only searching the body
     21          #('*', 252),
     22          ('*', 246),
     23          ('div:only-child', 22), # ?
     24          ## Changed from original, because the original doesn't make sense.
     25          ## There really aren't that many occurrances of 'celia'
     26          #('div:contains(CELIA)', 243),
     27          ('div:contains(CELIA)', 30),
     28          ('div:nth-child(even)', 106),
     29          ('div:nth-child(2n)', 106),
     30          ('div:nth-child(odd)', 137),
     31          ('div:nth-child(2n+1)', 137),
     32          ('div:nth-child(n)', 243),
     33          ('div:last-child', 53),
     34          ('div:first-child', 51),
     35          ('div > div', 242),
     36          ('div + div', 190),
     37          ('div ~ div', 190),
     38          ('body', 1),
     39          ('body div', 243),
     40          ('div', 243),
     41          ('div div', 242),
     42          ('div div div', 241),
     43          ('div, div, div', 243),
     44          ('div, a, span', 243),
     45          ('.dialog', 51),
     46          ('div.dialog', 51),
     47          ('div .dialog', 51),
     48          ('div.character, div.dialog', 99),
     49          ('div.direction.dialog', 0),
     50          ('div.dialog.direction', 0),
     51          ('div.dialog.scene', 1),
     52          ('div.scene.scene', 1),
     53          ('div.scene .scene', 0),
     54          ('div.direction .dialog ', 0),
     55          ('div .dialog .direction', 4),
     56          ('div.dialog .dialog .direction', 4),
     57          ('#speech5', 1),
     58          ('div#speech5', 1),
     59          ('div #speech5', 1),
     60          ('div.scene div.dialog', 49),
     61          ('div#scene1 div.dialog div', 142),
     62          ('#scene1 #speech1', 1),
     63          ('div[class]', 103),
     64          ('div[class=dialog]', 50),
     65          ('div[class^=dia]', 51),
     66          ('div[class$=log]', 50),
     67          ('div[class*=sce]', 1),
     68          ('div[class|=dialog]', 50), # ? Seems right
     69          ('div[class!=madeup]', 243), # ? Seems right
     70          ('div[class~=dialog]', 51), # ? Seems right
     71          ]
     72
     73 -    def __init__(self, index):
     74          self.index = index
     75          super(HelperTestCase, self).__init__()
     76
     77 -    def all(cls):
     78          for i in range(len(cls.selectors)):
     79              yield cls(i)
     80      all = classmethod(all)
     81
     82 -    def runTest(self):
     83          f = open(doc_fn, 'rb')
     84          c = f.read()
     85          f.close()
     86          doc = html.document_fromstring(c)
     87          body = doc.xpath('//body')[0]
     88          bad = []
     89          selector, count = self.selectors[self.index]
     90          xpath = cssselect.css_to_xpath(cssselect.parse(selector))
     91          try:
     92              results = body.xpath(xpath)
     93          except Exception:
     94              e = sys.exc_info()[1]
     95              e.args = ("%s for xpath %r" % (e, xpath))
     96              raise
     97          found = {}
     98          for item in results:
     99              if item in found:
    100                  assert 0, (
    101                      "Element shows up multiple times: %r" % item)
    102              found[item] = None
    103          if isinstance(results, basestring):
    104              assert 0, (
    105                  "Got string result (%r), not element, for xpath %r"
    106                  % (results[:20], str(xpath)))
    107          if len(results) != count:
    108              #if self.shortDescription() == 'div.character, div.dialog':
    109              #    import pdb; pdb.set_trace()
    110              assert 0, (
    111                  "Did not get expected results (%s) instead %s for xpath %r"
    112                  % (count, len(results), str(xpath)))
    113
    114 -    def shortDescription(self):
    115          return self.selectors[self.index][0]
    116
    117 -def unique(s):
    118      found = {}
    119      result = []
    120      for item in s:
    121          if item in found:
    122              continue
    123          found[item] = None
    124          result.append(s)
    125      return result
    126
    127 -def test_suite():
    128      suite = unittest.TestSuite()
    129      if sys.version_info >= (2,4):
    130          suite.addTests([make_doctest('test_css_select.txt')])
    131      suite.addTests([make_doctest('test_css.txt')])
    132      suite.addTests(list(CSSTestCase.all()))
    133      return suite
    134