def testFileUpdateMissingKey(self):
        fingerprint = '95B457D16843B21EA3FC73BBC7C32FC1F94E405E'

        # make a changeset with useful stuff that could be installed
        cs = changeset.ChangeSet()
        flavor = deps.parseFlavor('')
        v = versions.VersionFromString('/%s/1.0-1-1'
                                       %self.cfg.buildLabel.asString()).copy()
        v.resetTimeStamps()
        t = trove.Trove('test:test', v, flavor, None)

        path = self.workDir + '/blah'
        f = open(path, 'w')
        f.write('hello, world!\n')
        f.close()
        pathId = sha1helper.md5String('/blah')
        f = files.FileFromFilesystem(path, pathId)

        fileId = f.fileId()
        t.addFile(pathId, '/blah', v, fileId)
        cs.addFile(None, fileId, f.freeze())
        cs.addFileContents(pathId, fileId, changeset.ChangedFileTypes.file,
                           filecontents.FromFilesystem(path),
                           f.flags.isConfig())
        diff = t.diff(None, absolute = 1)[0]
        cs.newTrove(diff)
        cs.addPrimaryTrove('test:test', v, flavor)

        # sign the changeset
        csPath = os.path.join(self.workDir, 'test-1.0-1.ccs')
        cs = cook.signAbsoluteChangeset(cs, fingerprint)
        cs.writeToFile(csPath)

        tmpPath = mkdtemp()

        keyCache = openpgpkey.getKeyCache()
        newKeyCache = openpgpkey.OpenPGPKeyFileCache()

        pubRing = self.cfg.pubRing

        self.cfg.pubRing = [tmpPath + '/pubring.gpg']
        keyCacheCallback = openpgpkey.KeyCacheCallback(None, self.cfg)
        newKeyCache.setCallback(keyCacheCallback)

        openpgpkey.setKeyCache(newKeyCache)

        try:
            self.updatePkg(self.rootDir, csPath)
        finally:
            self.cfg.pubRing = pubRing
            openpgpkey.setKeyCache(keyCache)
dataset/ETHPy150Open sassoftware/conary/conary_test/cvctest/sigtest.py/SigTest.testFileUpdateMissingKey/original