OpenSlides/openslides/utils/test.py

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from contextlib import ContextDecorator
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from typing import Any
from unittest.mock import patch
from django.core.cache import caches
from django.test import TestCase as _TestCase
from django.test.runner import DiscoverRunner
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from ..core.config import config
class OpenSlidesDiscoverRunner(DiscoverRunner):
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def run_tests(self, test_labels, extra_tests=None, **kwargs): # type: ignore
"""
Test Runner which does not create a database, if only unittest are run.
"""
if len(test_labels) == 1 and test_labels[0].startswith('tests.unit'):
# Do not create a test database, if only unittests are tested
create_database = False
else:
create_database = True
self.setup_test_environment()
suite = self.build_suite(test_labels, extra_tests)
if create_database:
old_config = self.setup_databases()
result = self.run_suite(suite)
if create_database:
self.teardown_databases(old_config)
self.teardown_test_environment()
return self.suite_result(suite, result)
class TestCase(_TestCase):
"""
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Resets the config object after each test.
"""
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def tearDown(self) -> None:
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config.key_to_id = {}
class use_cache(ContextDecorator):
"""
Contextmanager that changes the code to use the local memory cache.
Can also be used as decorator for a function.
The code inside the contextmananger starts with an empty cache.
"""
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def __enter__(self) -> None:
cache = caches['locmem']
cache.clear()
self.patch = patch('openslides.utils.collection.cache', cache)
self.patch.start()
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def __exit__(self, *exc: Any) -> None:
self.patch.stop()