Mercurial > genshi > genshi-test

annotate genshi/tests/util.py @ 902:09cc3627654c experimental-inline

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Sync `experimental/inline` branch with [source:trunk@1126].
author cmlenz
date Fri, 23 Apr 2010 21:08:26 +0000
parents c5ec3146fcb6
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rev   line source
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c5ec3146fcb6 Use an LRU cache for caching parsed templates in the `TemplateLoader`. LRU cache implementation is a simplified version of the `LRUCache` class in [http://www.myghty.org/ Myghty].
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1 # -*- coding: utf-8 -*-
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2 #
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3 # Copyright (C) 2006,2009 Edgewall Software
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4 # All rights reserved.
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5 #
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6 # This software is licensed as described in the file COPYING, which
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7 # you should have received as part of this distribution. The terms
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8 # are also available at http://genshi.edgewall.org/wiki/License.
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9 #
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10 # This software consists of voluntary contributions made by many
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11 # individuals. For the exact contribution history, see the revision
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12 # history and logs, available at http://genshi.edgewall.org/log/.
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13
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14 import doctest
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15 import unittest
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16
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17 from genshi import util
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18 from genshi.util import LRUCache
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19
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21 class LRUCacheTestCase(unittest.TestCase):
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22
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23 def test_setitem(self):
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24 cache = LRUCache(2)
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25 cache['A'] = 0
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26 self.assertEqual(1, len(cache))
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27 self.assertEqual('A', cache.head.key)
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28 self.assertEqual('A', cache.tail.key)
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29 item_a = cache._dict['A']
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30 self.assertEqual('A', item_a.key)
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31 self.assertEqual(0, item_a.value)
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32 self.assertEqual(None, item_a.prv)
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33 self.assertEqual(None, item_a.nxt)
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34
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35 cache['B'] = 1
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36 self.assertEqual(2, len(cache))
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37 self.assertEqual('B', cache.head.key)
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38 self.assertEqual('A', cache.tail.key)
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39 item_a = cache._dict['A']
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40 item_b = cache._dict['B']
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41 self.assertEqual('A', item_a.key)
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42 self.assertEqual(0, item_a.value)
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43 self.assertEqual(item_b, item_a.prv)
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44 self.assertEqual(None, item_a.nxt)
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45 self.assertEqual('B', item_b.key)
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46 self.assertEqual(1, item_b.value)
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47 self.assertEqual(None, item_b.prv)
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48 self.assertEqual(item_a, item_b.nxt)
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49
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50 cache['C'] = 2
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51 self.assertEqual(2, len(cache))
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52 self.assertEqual('C', cache.head.key)
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53 self.assertEqual('B', cache.tail.key)
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54 item_b = cache._dict['B']
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55 item_c = cache._dict['C']
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56 self.assertEqual('B', item_b.key)
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57 self.assertEqual(1, item_b.value)
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58 self.assertEqual(item_c, item_b.prv)
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59 self.assertEqual(None, item_b.nxt)
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60 self.assertEqual('C', item_c.key)
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61 self.assertEqual(2, item_c.value)
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62 self.assertEqual(None, item_c.prv)
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63 self.assertEqual(item_b, item_c.nxt)
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64
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65 def test_getitem(self):
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66 cache = LRUCache(2)
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67 cache['A'] = 0
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68 cache['B'] = 1
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69
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70 cache['A']
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72 self.assertEqual(2, len(cache))
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73 self.assertEqual('A', cache.head.key)
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74 self.assertEqual('B', cache.tail.key)
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75 item_a = cache._dict['A']
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76 item_b = cache._dict['B']
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77 self.assertEqual('A', item_a.key)
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78 self.assertEqual(0, item_a.value)
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79 self.assertEqual(None, item_a.prv)
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80 self.assertEqual(item_b, item_a.nxt)
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81 self.assertEqual('B', item_b.key)
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82 self.assertEqual(1, item_b.value)
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83 self.assertEqual(item_a, item_b.prv)
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84 self.assertEqual(None, item_b.nxt)
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85
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87 def suite():
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88 suite = unittest.TestSuite()
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89 suite.addTest(doctest.DocTestSuite(util))
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90 suite.addTest(unittest.makeSuite(LRUCacheTestCase, 'test'))
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91 return suite
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92
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93 if __name__ == '__main__':
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94 unittest.main(defaultTest='suite')
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