Source Code for Module lepl.core._test.manager

 1   
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12  # The Original Code is LEPL (http://www.acooke.org/lepl) 
13  # The Initial Developer of the Original Code is Andrew Cooke. 
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15  # Andrew Cooke (andrew@acooke.org). All Rights Reserved. 
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17  # Alternatively, the contents of this file may be used under the terms 
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29   
30  ''' 
31  Tests for the lepl.core.manager module. 
32  ''' 
33   
34  from logging import basicConfig, DEBUG 
35  from unittest import TestCase 
36   
37  from lepl.matchers.derived import Eos 
38  from lepl.matchers.core import Literal 
39  from lepl.support.lib import LogMixin 
40   
41   
42  # pylint: disable-msg=C0103, C0111, C0301, W0702, C0324, C0102, C0321, W0141, R0201, R0904 
43  # (dude this is just a test) 
44   
45       
46 -class LimitedDepthTest(LogMixin, TestCase): 
47      ''' 
48      The test here takes '****' and divides it amongst the matchers, all of 
49      which will take 0 to 4 matches.  The number of different permutations 
50      depends on backtracking and varies depending on the queue length 
51      available. 
52      ''' 
53       
54 -    def test_limited_depth(self): 
55          ''' 
56          These show something is happening.  Whether they are exactly correct 
57          is another matter altogether... 
58          ''' 
59          #basicConfig(level=DEBUG) 
60          # there was a major bug here that made this test vary often 
61          # it should now be fixed 
62          self.assert_range(3, 'g', [15,1,1,1,3,3,6,6,10,10,10,15], 4) 
63          self.assert_range(3, 'b', [15,0,1,1,5,5,5,5,5,5,5,5,5,15], 4) 
64          self.assert_range(3, 'd', [15,1,1,3,3,6,6,10,10,10,15], 4) 
65           
66 -    def assert_range(self, n_match, direcn, results, multiplier): 
67          for index in range(len(results)): 
68              queue_len = index * multiplier 
69              expr = Literal('*')[::direcn,...][n_match] & Eos() 
70              expr.config.clear().low_memory(queue_len) 
71              matcher = expr.get_match_string() 
72              self.assert_count(matcher, queue_len, index, results[index]) 
73               
74 -    def assert_count(self, matcher, queue_len, index, count): 
75          results = list(matcher('****')) 
76          found = len(results) 
77          assert found == count, (queue_len, index, found, count) 
78   
79 -    def test_single(self): 
80          #basicConfig(level=DEBUG) 
81          expr = Literal('*')[:,...][3] 
82          expr.config.clear().low_memory(5) 
83          match = expr.get_match_string()('*' * 4) 
84          list(match) 
85