annotate tests/test-lrucachedict.py @ 21812:73e4a02e6d23

hg: add support for HGUNICODEPEDANTRY environment variable This lets us easily verify that there are no implicit conversions between unicodes and bytes in Mercurial's codebase. Based on something mpm did by hand periodically, but it kept regressing, so just open the door to running it in a buildbot.
author Augie Fackler <raf@durin42.com>
date Mon, 23 Jun 2014 09:33:07 -0400
parents 887ffa22fd0d
children 45d996a566d7
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1 from mercurial import util
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2
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3 def printifpresent(d, xs):
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4 for x in xs:
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5 present = x in d
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6 print "'%s' in d: %s" % (x, present)
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7 if present:
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8 print "d['%s']: %s" % (x, d[x])
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9
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10 def test_lrucachedict():
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11 d = util.lrucachedict(4)
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12 d['a'] = 'va'
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13 d['b'] = 'vb'
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14 d['c'] = 'vc'
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15 d['d'] = 'vd'
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16
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17 # all of these should be present
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18 printifpresent(d, ['a', 'b', 'c', 'd'])
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19
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20 # 'a' should be dropped because it was least recently used
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21 d['e'] = 've'
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22 printifpresent(d, ['a', 'b', 'c', 'd', 'e'])
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23
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24 # touch entries in some order (get or set).
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25 d['e']
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26 d['c'] = 'vc2'
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27 d['d']
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28 d['b'] = 'vb2'
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29
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30 # 'e' should be dropped now
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31 d['f'] = 'vf'
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32 printifpresent(d, ['b', 'c', 'd', 'e', 'f'])
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33
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34 d.clear()
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35 printifpresent(d, ['b', 'c', 'd', 'e', 'f'])
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36
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37 if __name__ == '__main__':
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38 test_lrucachedict()