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- # testing/warnings.py
- # Copyright (C) 2005-2017 the SQLAlchemy authors and contributors
- # <see AUTHORS file>
- #
- # This module is part of SQLAlchemy and is released under
- # the MIT License: http://www.opensource.org/licenses/mit-license.php
- """NOTE: copied/adapted from SQLAlchemy master for backwards compatibility;
- this should be removable when Alembic targets SQLAlchemy 0.9.4.
- """
- from __future__ import absolute_import
- import warnings
- from sqlalchemy import exc as sa_exc
- import re
- def setup_filters():
- """Set global warning behavior for the test suite."""
- warnings.filterwarnings('ignore',
- category=sa_exc.SAPendingDeprecationWarning)
- warnings.filterwarnings('error', category=sa_exc.SADeprecationWarning)
- warnings.filterwarnings('error', category=sa_exc.SAWarning)
- def assert_warnings(fn, warning_msgs, regex=False):
- """Assert that each of the given warnings are emitted by fn."""
- from .assertions import eq_
- with warnings.catch_warnings(record=True) as log:
- # ensure that nothing is going into __warningregistry__
- warnings.filterwarnings("always")
- result = fn()
- for warning in log:
- popwarn = warning_msgs.pop(0)
- if regex:
- assert re.match(popwarn, str(warning.message))
- else:
- eq_(popwarn, str(warning.message))
- return result
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