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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   

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   

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   

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

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