tests/test-check-interfaces.py
author Gregory Szorc <gregory.szorc@gmail.com>
Thu, 03 Mar 2022 17:34:00 +0100
changeset 48875 6000f5b25c9b
parent 48526 04688c51f81f
child 48946 642e31cb55f0
permissions -rw-r--r--
py2: remove simple from __future__ statements These were needed for Python 2 support. Now that our linter no longer mandates these, we can start deleting them. Differential Revision: https://phab.mercurial-scm.org/D12254
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# Test that certain objects conform to well-defined interfaces.
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from mercurial import encoding
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encoding.environ[b'HGREALINTERFACES'] = b'1'
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import os
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import subprocess
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import sys
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# Only run if tests are run in a repo
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if subprocess.call(
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    [sys.executable, '%s/hghave' % os.environ['TESTDIR'], 'test-repo']
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):
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    sys.exit(80)
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from mercurial.interfaces import (
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    dirstate as intdirstate,
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    repository,
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)
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from mercurial.thirdparty.zope import interface as zi
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from mercurial.thirdparty.zope.interface import verify as ziverify
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from mercurial import (
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    bundlerepo,
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    dirstate,
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    filelog,
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    httppeer,
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    localrepo,
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    manifest,
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    pycompat,
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    revlog,
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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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    vfs as vfsmod,
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    wireprotoserver,
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    wireprototypes,
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    wireprotov1peer,
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)
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testdir = os.path.dirname(__file__)
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rootdir = pycompat.fsencode(os.path.normpath(os.path.join(testdir, '..')))
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sys.path[0:0] = [testdir]
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import simplestorerepo
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del sys.path[0]
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def checkzobject(o, allowextra=False):
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    """Verify an object with a zope interface."""
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    ifaces = zi.providedBy(o)
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    if not ifaces:
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        print('%r does not provide any zope interfaces' % o)
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        return
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    # Run zope.interface's built-in verification routine. This verifies that
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    # everything that is supposed to be present is present.
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    for iface in ifaces:
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        ziverify.verifyObject(iface, o)
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    if allowextra:
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        return
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    # Now verify that the object provides no extra public attributes that
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    # aren't declared as part of interfaces.
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    allowed = set()
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    for iface in ifaces:
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        allowed |= set(iface.names(all=True))
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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(
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            'public attribute not declared in interfaces: %s.%s'
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            % (o.__class__.__name__, attr)
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        )
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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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        self._wanted_sidedata = set()
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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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class dummyopener(object):
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    handlers = []
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# Facilitates testing sshpeer without requiring a server.
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class badpeer(httppeer.httppeer):
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    def __init__(self):
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        super(badpeer, self).__init__(
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            None, None, None, dummyopener(), None, None
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        )
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        self.badattribute = True
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    def badmethod(self):
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        pass
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class dummypipe(object):
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    def close(self):
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        pass
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    @property
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    def closed(self):
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        pass
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def main():
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    ui = uimod.ui()
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    # Needed so we can open a local repo with obsstore without a warning.
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    ui.setconfig(b'experimental', b'evolution.createmarkers', True)
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    checkzobject(badpeer())
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    ziverify.verifyClass(repository.ipeerbase, httppeer.httppeer)
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    checkzobject(httppeer.httppeer(None, None, None, dummyopener(), None, None))
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    ziverify.verifyClass(repository.ipeerbase, localrepo.localpeer)
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    checkzobject(localrepo.localpeer(dummyrepo()))
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    ziverify.verifyClass(
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        repository.ipeercommandexecutor, localrepo.localcommandexecutor
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    )
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    checkzobject(localrepo.localcommandexecutor(None))
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    ziverify.verifyClass(
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        repository.ipeercommandexecutor, wireprotov1peer.peerexecutor
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    )
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    checkzobject(wireprotov1peer.peerexecutor(None))
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    ziverify.verifyClass(repository.ipeerbase, sshpeer.sshv1peer)
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    checkzobject(
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        sshpeer.sshv1peer(
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            ui,
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            b'ssh://localhost/foo',
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            b'',
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            dummypipe(),
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            dummypipe(),
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            None,
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            None,
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        )
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    )
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    ziverify.verifyClass(repository.ipeerbase, bundlerepo.bundlepeer)
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    checkzobject(bundlerepo.bundlepeer(dummyrepo()))
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    ziverify.verifyClass(repository.ipeerbase, statichttprepo.statichttppeer)
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    checkzobject(statichttprepo.statichttppeer(dummyrepo()))
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    ziverify.verifyClass(repository.ipeerbase, unionrepo.unionpeer)
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    checkzobject(unionrepo.unionpeer(dummyrepo()))
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    ziverify.verifyClass(
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        repository.ilocalrepositorymain, localrepo.localrepository
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    )
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    ziverify.verifyClass(
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        repository.ilocalrepositoryfilestorage, localrepo.revlogfilestorage
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    )
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    repo = localrepo.makelocalrepository(ui, rootdir)
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    checkzobject(repo)
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    ziverify.verifyClass(
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        wireprototypes.baseprotocolhandler, wireprotoserver.sshv1protocolhandler
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    )
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    ziverify.verifyClass(
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        wireprototypes.baseprotocolhandler,
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        wireprotoserver.httpv1protocolhandler,
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    )
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    sshv1 = wireprotoserver.sshv1protocolhandler(None, None, None)
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    checkzobject(sshv1)
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    httpv1 = wireprotoserver.httpv1protocolhandler(None, None, None)
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    checkzobject(httpv1)
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    ziverify.verifyClass(repository.ifilestorage, filelog.filelog)
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    ziverify.verifyClass(repository.imanifestdict, manifest.manifestdict)
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    ziverify.verifyClass(repository.imanifestdict, manifest.treemanifest)
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    ziverify.verifyClass(
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        repository.imanifestrevisionstored, manifest.manifestctx
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    )
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    ziverify.verifyClass(
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        repository.imanifestrevisionwritable, manifest.memmanifestctx
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    )
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    ziverify.verifyClass(
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        repository.imanifestrevisionstored, manifest.treemanifestctx
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    )
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    ziverify.verifyClass(
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        repository.imanifestrevisionwritable, manifest.memtreemanifestctx
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    )
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    ziverify.verifyClass(repository.imanifestlog, manifest.manifestlog)
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    ziverify.verifyClass(repository.imanifeststorage, manifest.manifestrevlog)
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    ziverify.verifyClass(
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        repository.irevisiondelta, simplestorerepo.simplestorerevisiondelta
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    )
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    ziverify.verifyClass(repository.ifilestorage, simplestorerepo.filestorage)
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    ziverify.verifyClass(
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        repository.iverifyproblem, simplestorerepo.simplefilestoreproblem
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    )
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    ziverify.verifyClass(intdirstate.idirstate, dirstate.dirstate)
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    vfs = vfsmod.vfs(b'.')
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    fl = filelog.filelog(vfs, b'dummy.i')
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    checkzobject(fl, allowextra=True)
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    # Conforms to imanifestlog.
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    ml = manifest.manifestlog(
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        vfs,
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        repo,
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        manifest.manifestrevlog(repo.nodeconstants, repo.svfs),
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        repo.narrowmatch(),
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    )
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    checkzobject(ml)
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    checkzobject(repo.manifestlog)
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    # Conforms to imanifestrevision.
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    mctx = ml[repo[0].manifestnode()]
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    checkzobject(mctx)
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    # Conforms to imanifestrevisionwritable.
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    checkzobject(mctx.copy())
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    # Conforms to imanifestdict.
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    checkzobject(mctx.read())
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    mrl = manifest.manifestrevlog(repo.nodeconstants, vfs)
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    checkzobject(mrl)
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    ziverify.verifyClass(repository.irevisiondelta, revlog.revlogrevisiondelta)
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    rd = revlog.revlogrevisiondelta(
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        node=b'',
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        p1node=b'',
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        p2node=b'',
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        basenode=b'',
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        linknode=b'',
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        flags=b'',
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        baserevisionsize=None,
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        revision=b'',
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        sidedata=b'',
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        delta=None,
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        protocol_flags=b'',
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    )
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    checkzobject(rd)
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    ziverify.verifyClass(repository.iverifyproblem, revlog.revlogproblem)
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    checkzobject(revlog.revlogproblem())
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main()