126 lines
3.4 KiB
Python
126 lines
3.4 KiB
Python
# Copyright 2014 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Shared testing utilities."""
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from __future__ import absolute_import
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class _Monkey(object):
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"""Context-manager for replacing module names in the scope of a test."""
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def __init__(self, module, **kw):
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self.module = module
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if not kw: # pragma: NO COVER
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raise ValueError("_Monkey was used with nothing to monkey-patch")
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self.to_restore = {key: getattr(module, key) for key in kw}
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for key, value in kw.items():
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setattr(module, key, value)
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def __enter__(self):
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return self
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def __exit__(self, exc_type, exc_val, exc_tb):
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for key, value in self.to_restore.items():
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setattr(self.module, key, value)
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class _NamedTemporaryFile(object):
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def __init__(self, suffix=""):
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import os
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import tempfile
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filehandle, self.name = tempfile.mkstemp(suffix=suffix)
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os.close(filehandle)
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def __enter__(self):
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return self
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def __exit__(self, exc_type, exc_val, exc_tb):
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import os
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os.remove(self.name)
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def _tempdir_maker():
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import contextlib
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import shutil
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import tempfile
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@contextlib.contextmanager
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def _tempdir_mgr():
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temp_dir = tempfile.mkdtemp()
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yield temp_dir
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shutil.rmtree(temp_dir)
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return _tempdir_mgr
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# pylint: disable=invalid-name
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# Retain _tempdir as a constant for backwards compatibility despite
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# being an invalid name.
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_tempdir = _tempdir_maker()
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del _tempdir_maker
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# pylint: enable=invalid-name
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class _GAXBaseAPI(object):
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_random_gax_error = False
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def __init__(self, **kw):
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self.__dict__.update(kw)
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@staticmethod
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def _make_grpc_error(status_code, trailing=None):
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from grpc._channel import _RPCState
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from google.cloud.exceptions import GrpcRendezvous
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details = "Some error details."
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exc_state = _RPCState((), None, trailing, status_code, details)
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return GrpcRendezvous(exc_state, None, None, None)
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def _make_grpc_not_found(self):
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from grpc import StatusCode
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return self._make_grpc_error(StatusCode.NOT_FOUND)
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def _make_grpc_failed_precondition(self):
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from grpc import StatusCode
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return self._make_grpc_error(StatusCode.FAILED_PRECONDITION)
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def _make_grpc_already_exists(self):
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from grpc import StatusCode
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return self._make_grpc_error(StatusCode.ALREADY_EXISTS)
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def _make_grpc_deadline_exceeded(self):
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from grpc import StatusCode
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return self._make_grpc_error(StatusCode.DEADLINE_EXCEEDED)
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class _GAXPageIterator(object):
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def __init__(self, *pages, **kwargs):
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self._pages = iter(pages)
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self.page_token = kwargs.get("page_token")
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def next(self):
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"""Iterate to the next page."""
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import six
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return six.next(self._pages)
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__next__ = next
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