test_main.py 文件源码

def test_does_not_fit(self):
        # The contents of a structure is too large for the image size.
        workdir = self._resources.enter_context(TemporaryDirectory())
        # See LP: #1666580
        main(('snap', '--workdir', workdir,
              '--thru', 'load_gadget_yaml',
              self.model_assertion))
        # Make the gadget's mbr contents too big.
        path = os.path.join(workdir, 'unpack', 'gadget', 'pc-boot.img')
        os.truncate(path, 512)
        mock = self._resources.enter_context(patch(
            'ubuntu_image.__main__._logger.error'))
        code = main(('snap', '--workdir', workdir, '--resume'))
        self.assertEqual(code, 1)
        self.assertEqual(
            mock.call_args_list[-1],
            call('Volume contents do not fit (72B over): '
                 'volumes:<pc>:structure:<mbr> [#0]'))