annotate tests/test-check-interfaces.py @ 36705:c6901665cd5b

py3: make sure __repr__ returns a str # skip-blame because just r'' prefix Differential Revision: https://phab.mercurial-scm.org/D2652
author Pulkit Goyal <7895pulkit@gmail.com>
date Sun, 04 Mar 2018 22:40:33 +0530
parents 11ba1a96f946
children 8e89c2bec1f7
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1 # Test that certain objects conform to well-defined interfaces.
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2
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3 from __future__ import absolute_import, print_function
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4
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5 from mercurial import (
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6 bundlerepo,
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7 httppeer,
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8 localrepo,
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9 sshpeer,
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10 statichttprepo,
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11 ui as uimod,
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12 unionrepo,
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13 )
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14
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15 def checkobject(o):
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16 """Verify a constructed object conforms to interface rules.
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17
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18 An object must have __abstractmethods__ defined.
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19
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20 All "public" attributes of the object (attributes not prefixed with
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21 an underscore) must be in __abstractmethods__ or appear on a base class
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22 with __abstractmethods__.
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23 """
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24 name = o.__class__.__name__
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25
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26 allowed = set()
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27 for cls in o.__class__.__mro__:
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28 if not getattr(cls, '__abstractmethods__', set()):
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29 continue
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30
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31 allowed |= cls.__abstractmethods__
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32 allowed |= {a for a in dir(cls) if not a.startswith('_')}
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33
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34 if not allowed:
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35 print('%s does not have abstract methods' % name)
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36 return
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37
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38 public = {a for a in dir(o) if not a.startswith('_')}
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39
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40 for attr in sorted(public - allowed):
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41 print('public attributes not in abstract interface: %s.%s' % (
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42 name, attr))
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43
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44 # Facilitates testing localpeer.
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45 class dummyrepo(object):
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46 def __init__(self):
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47 self.ui = uimod.ui()
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48 def filtered(self, name):
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49 pass
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50 def _restrictcapabilities(self, caps):
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51 pass
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52
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53 # Facilitates testing sshpeer without requiring an SSH server.
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54 class badpeer(httppeer.httppeer):
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55 def __init__(self):
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56 super(badpeer, self).__init__(uimod.ui(), 'http://localhost')
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57 self.badattribute = True
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58
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59 def badmethod(self):
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60 pass
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61
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62 class dummypipe(object):
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63 def close(self):
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64 pass
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65
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66 def main():
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67 ui = uimod.ui()
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68
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69 checkobject(badpeer())
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70 checkobject(httppeer.httppeer(ui, 'http://localhost'))
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71 checkobject(localrepo.localpeer(dummyrepo()))
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72 checkobject(sshpeer.sshv1peer(ui, 'ssh://localhost/foo', None, dummypipe(),
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73 dummypipe(), None, None))
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74 checkobject(sshpeer.sshv2peer(ui, 'ssh://localhost/foo', None, dummypipe(),
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75 dummypipe(), None, None))
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76 checkobject(bundlerepo.bundlepeer(dummyrepo()))
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77 checkobject(statichttprepo.statichttppeer(dummyrepo()))
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78 checkobject(unionrepo.unionpeer(dummyrepo()))
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79
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80 main()