NPO-Accounting/conservancy_beancount Files · tests/test_config.py

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Location: NPO-Accounting/conservancy_beancount/tests/test_config.py

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Brett Smith

tests: Clean the environment before running tests.

As we start reading more sensitive user configuration (like RT credentials),
this fixture makes it simpler to ensure that the tests never read the user's
real configuration, which could lead to problems like passwords in tracebacks.

"""Test Config class"""
# Copyright © 2020  Brett Smith
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

import contextlib
import os

from conservancy_beancount import config as config_mod

def _update_environ(updates):
    for key, value in updates.items():
        if value is None:
            os.environ.pop(key, None)
        else:
            os.environ[key] = str(value)

@contextlib.contextmanager
def update_environ(**kwargs):
    revert = {key: os.environ.get(key) for key in kwargs}
    _update_environ(kwargs)
    yield
    _update_environ(revert)

def test_repository_from_environment():
    with update_environ(CONSERVANCY_REPOSITORY='/usr/local'):
        config = config_mod.Config()
        assert config.repository_path().parts == ('/', 'usr', 'local')

def test_no_repository():
    config = config_mod.Config()
    assert config.repository_path() is None