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annotate tests/test-check-interfaces.py @ 35547:b6dbc860570d
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author | Yuya Nishihara <yuya@tcha.org> |
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date | Thu, 04 Jan 2018 12:00:18 +0900 |
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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 testingsshpeer(sshpeer.sshpeer): |
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55 def _validaterepo(self, *args, **kwargs): |
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56 pass |
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57 |
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58 class badpeer(httppeer.httppeer): |
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59 def __init__(self): |
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60 super(badpeer, self).__init__(uimod.ui(), 'http://localhost') |
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61 self.badattribute = True |
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62 |
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63 def badmethod(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(testingsshpeer(ui, 'ssh://localhost/foo')) |
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73 checkobject(bundlerepo.bundlepeer(dummyrepo())) |
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74 checkobject(statichttprepo.statichttppeer(dummyrepo())) |
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75 checkobject(unionrepo.unionpeer(dummyrepo())) |
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76 |
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77 main() |