Source Code for Module lxml.tests.test_elementpath

 1  # -*- coding: utf-8 -*- 
 2   
 3  """ 
 4  Tests for the ElementPath implementation. 
 5  """ 
 6   
 7  from __future__ import absolute_import 
 8   
 9  import unittest 
10  from .common_imports import etree, HelperTestCase 
11   
12   
13 -class EtreeElementPathTestCase(HelperTestCase): 
14      etree = etree 
15      from lxml import _elementpath 
16   
17 -    def test_cache(self): 
18          self._elementpath._cache.clear() 
19          el = self.etree.XML(b'<a><b><c/><c/></b></a>') 
20          self.assertFalse(self._elementpath._cache) 
21   
22          self.assertTrue(el.findall('b/c')) 
23          self.assertEqual(1, len(self._elementpath._cache)) 
24          self.assertTrue(el.findall('b/c')) 
25          self.assertEqual(1, len(self._elementpath._cache)) 
26          self.assertFalse(el.findall('xxx')) 
27          self.assertEqual(2, len(self._elementpath._cache)) 
28          self.assertFalse(el.findall('xxx')) 
29          self.assertEqual(2, len(self._elementpath._cache)) 
30          self.assertTrue(el.findall('b/c')) 
31          self.assertEqual(2, len(self._elementpath._cache)) 
32   
33   
34  #class ElementTreeElementPathTestCase(EtreeElementPathTestCase): 
35  #    import xml.etree.ElementTree as etree 
36  #    import xml.etree.ElementPath as _elementpath 
37   
38   
39 -def test_suite(): 
40      suite = unittest.TestSuite() 
41      suite.addTests([unittest.makeSuite(EtreeElementPathTestCase)]) 
42      #suite.addTests([unittest.makeSuite(ElementTreeElementPathTestCase)]) 
43      return suite 
44   
45   
46  if __name__ == '__main__': 
47      print('to test use test.py %s' % __file__) 
48