annotate tests/test-lrucachedict.py @ 29914:770128405002

debugrevspec: deprecate --optimize option This option has been superseded by '--show-stage NAME', and will cause confusion in future patches.
author Yuya Nishihara <yuya@tcha.org>
date Sun, 21 Aug 2016 12:36:23 +0900
parents 79add5a4e857
children 067f7d2c7d60
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1 from __future__ import absolute_import, print_function
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2
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3 from mercurial import (
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4 util,
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5 )
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6
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7 def printifpresent(d, xs, name='d'):
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8 for x in xs:
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9 present = x in d
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10 print("'%s' in %s: %s" % (x, name, present))
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11 if present:
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12 print("%s['%s']: %s" % (name, x, d[x]))
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13
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14 def test_lrucachedict():
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15 d = util.lrucachedict(4)
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16 d['a'] = 'va'
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17 d['b'] = 'vb'
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18 d['c'] = 'vc'
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19 d['d'] = 'vd'
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20
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21 # all of these should be present
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22 printifpresent(d, ['a', 'b', 'c', 'd'])
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23
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24 # 'a' should be dropped because it was least recently used
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25 d['e'] = 've'
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26 printifpresent(d, ['a', 'b', 'c', 'd', 'e'])
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27
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28 assert d.get('a') is None
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29 assert d.get('e') == 've'
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30
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31 # touch entries in some order (get or set).
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32 d['e']
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33 d['c'] = 'vc2'
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34 d['d']
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35 d['b'] = 'vb2'
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36
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37 # 'e' should be dropped now
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38 d['f'] = 'vf'
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39 printifpresent(d, ['b', 'c', 'd', 'e', 'f'])
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40
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41 d.clear()
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42 printifpresent(d, ['b', 'c', 'd', 'e', 'f'])
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43
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44 # Now test dicts that aren't full.
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45 d = util.lrucachedict(4)
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46 d['a'] = 1
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47 d['b'] = 2
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48 d['a']
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49 d['b']
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50 printifpresent(d, ['a', 'b'])
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51
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52 # test copy method
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53 d = util.lrucachedict(4)
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54 d['a'] = 'va3'
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55 d['b'] = 'vb3'
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56 d['c'] = 'vc3'
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57 d['d'] = 'vd3'
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58
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59 dc = d.copy()
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60
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61 # all of these should be present
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62 print("\nAll of these should be present:")
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63 printifpresent(dc, ['a', 'b', 'c', 'd'], 'dc')
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64
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65 # 'a' should be dropped because it was least recently used
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66 print("\nAll of these except 'a' should be present:")
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67 dc['e'] = 've3'
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68 printifpresent(dc, ['a', 'b', 'c', 'd', 'e'], 'dc')
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69
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70 # contents and order of original dict should remain unchanged
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71 print("\nThese should be in reverse alphabetical order and read 'v?3':")
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72 dc['b'] = 'vb3_new'
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73 for k in list(iter(d)):
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74 print("d['%s']: %s" % (k, d[k]))
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75
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76 if __name__ == '__main__':
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77 test_lrucachedict()