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# Test that certain objects conform to well-defined interfaces.
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from __future__ import absolute_import, print_function
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from mercurial import (
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bundlerepo,
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httppeer,
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localrepo,
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sshpeer,
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statichttprepo,
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ui as uimod,
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unionrepo,
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)
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def checkobject(o):
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"""Verify a constructed object conforms to interface rules.
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An object must have __abstractmethods__ defined.
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All "public" attributes of the object (attributes not prefixed with
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an underscore) must be in __abstractmethods__ or appear on a base class
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with __abstractmethods__.
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"""
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name = o.__class__.__name__
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allowed = set()
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for cls in o.__class__.__mro__:
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if not getattr(cls, '__abstractmethods__', set()):
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continue
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allowed |= cls.__abstractmethods__
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allowed |= {a for a in dir(cls) if not a.startswith('_')}
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if not allowed:
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print('%s does not have abstract methods' % name)
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return
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public = {a for a in dir(o) if not a.startswith('_')}
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for attr in sorted(public - allowed):
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print('public attributes not in abstract interface: %s.%s' % (
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name, attr))
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# Facilitates testing localpeer.
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class dummyrepo(object):
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def __init__(self):
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self.ui = uimod.ui()
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def filtered(self, name):
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pass
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def _restrictcapabilities(self, caps):
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pass
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# Facilitates testing sshpeer without requiring an SSH server.
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class testingsshpeer(sshpeer.sshpeer):
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def _validaterepo(self, *args, **kwargs):
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pass
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class badpeer(httppeer.httppeer):
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def __init__(self):
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super(badpeer, self).__init__(uimod.ui(), 'http://localhost')
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self.badattribute = True
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def badmethod(self):
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pass
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def main():
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ui = uimod.ui()
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checkobject(badpeer())
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checkobject(httppeer.httppeer(ui, 'http://localhost'))
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checkobject(localrepo.localpeer(dummyrepo()))
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checkobject(testingsshpeer(ui, 'ssh://localhost/foo', None, None, None,
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None))
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checkobject(bundlerepo.bundlepeer(dummyrepo()))
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checkobject(statichttprepo.statichttppeer(dummyrepo()))
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checkobject(unionrepo.unionpeer(dummyrepo()))
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main()
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