56dc1c9d3e
Created a BaseMeddleware which all Meddleware should derive from. This is not strictly needed, but will greatly help. The base class has the common __init__ of all the other Meddlwares and fall backs for all hooks. That way a new Meddlware only needs to override what it actually wants to implement.
203 lines
6.6 KiB
Python
203 lines
6.6 KiB
Python
# GNU MediaGoblin -- federated, autonomous media hosting
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# Copyright (C) 2011 MediaGoblin contributors. See AUTHORS.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import pkg_resources
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import os, shutil
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from paste.deploy import loadapp
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from webtest import TestApp
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from mediagoblin import mg_globals
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from mediagoblin.tools import testing
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from mediagoblin.init.config import read_mediagoblin_config
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from mediagoblin.decorators import _make_safe
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from mediagoblin.db.open import setup_connection_and_db_from_config
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from mediagoblin.meddleware import BaseMeddleware
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MEDIAGOBLIN_TEST_DB_NAME = u'__mediagoblin_tests__'
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TEST_SERVER_CONFIG = pkg_resources.resource_filename(
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'mediagoblin.tests', 'test_paste.ini')
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TEST_APP_CONFIG = pkg_resources.resource_filename(
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'mediagoblin.tests', 'test_mgoblin_app.ini')
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TEST_USER_DEV = pkg_resources.resource_filename(
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'mediagoblin.tests', 'test_user_dev')
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MGOBLIN_APP = None
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USER_DEV_DIRECTORIES_TO_SETUP = [
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'media/public', 'media/queue',
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'beaker/sessions/data', 'beaker/sessions/lock']
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BAD_CELERY_MESSAGE = """\
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Sorry, you *absolutely* must run nosetests with the
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mediagoblin.init.celery.from_tests module. Like so:
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$ CELERY_CONFIG_MODULE=mediagoblin.init.celery.from_tests ./bin/nosetests"""
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class BadCeleryEnviron(Exception): pass
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class TestingMeddleware(BaseMeddleware):
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"""
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Meddleware for the Unit tests
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It might make sense to perform some tests on all
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requests/responses. Or prepare them in a special
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manner. For example all html responses could be tested
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for being valid html *after* being rendered.
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This module is getting inserted at the front of the
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meddleware list, which means: requests are handed here
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first, responses last. So this wraps up the "normal"
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app.
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If you need to add a test, either add it directly to
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the appropiate process_request or process_response, or
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create a new method and call it from process_*.
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"""
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def process_response(self, request, response):
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# All following tests should be for html only!
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if response.content_type != "text/html":
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# Get out early
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return
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# If the template contains a reference to
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# /mgoblin_static/ instead of using
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# /request.staticdirect(), error out here.
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# This could probably be implemented as a grep on
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# the shipped templates easier...
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if response.text.find("/mgoblin_static/") >= 0:
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raise AssertionError(
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"Response HTML contains reference to /mgoblin_static/ "
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"instead of staticdirect. Request was for: "
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+ request.full_path)
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return
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def suicide_if_bad_celery_environ():
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if not os.environ.get('CELERY_CONFIG_MODULE') == \
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'mediagoblin.init.celery.from_tests':
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raise BadCeleryEnviron(BAD_CELERY_MESSAGE)
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def get_test_app(dump_old_app=True):
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suicide_if_bad_celery_environ()
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# Make sure we've turned on testing
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testing._activate_testing()
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# Leave this imported as it sets up celery.
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from mediagoblin.init.celery import from_tests
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global MGOBLIN_APP
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# Just return the old app if that exists and it's okay to set up
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# and return
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if MGOBLIN_APP and not dump_old_app:
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return MGOBLIN_APP
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# Remove and reinstall user_dev directories
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if os.path.exists(TEST_USER_DEV):
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shutil.rmtree(TEST_USER_DEV)
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for directory in USER_DEV_DIRECTORIES_TO_SETUP:
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full_dir = os.path.join(TEST_USER_DEV, directory)
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os.makedirs(full_dir)
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# Get app config
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global_config, validation_result = read_mediagoblin_config(TEST_APP_CONFIG)
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app_config = global_config['mediagoblin']
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# Wipe database
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# @@: For now we're dropping collections, but we could also just
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# collection.remove() ?
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connection, db = setup_connection_and_db_from_config(app_config)
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assert db.name == MEDIAGOBLIN_TEST_DB_NAME
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collections_to_wipe = [
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collection
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for collection in db.collection_names()
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if not collection.startswith('system.')]
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for collection in collections_to_wipe:
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db.drop_collection(collection)
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# TODO: Drop and recreate indexes
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# setup app and return
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test_app = loadapp(
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'config:' + TEST_SERVER_CONFIG)
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# Insert the TestingMeddleware, which can do some
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# sanity checks on every request/response.
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# Doing it this way is probably not the cleanest way.
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# We'll fix it, when we have plugins!
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mg_globals.app.meddleware.insert(0, TestingMeddleware(mg_globals.app))
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app = TestApp(test_app)
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MGOBLIN_APP = app
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return app
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def setup_fresh_app(func):
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"""
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Decorator to setup a fresh test application for this function.
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Cleans out test buckets and passes in a new, fresh test_app.
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"""
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def wrapper(*args, **kwargs):
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test_app = get_test_app()
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testing.clear_test_buckets()
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return func(test_app, *args, **kwargs)
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return _make_safe(wrapper, func)
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def install_fixtures_simple(db, fixtures):
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"""
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Very simply install fixtures in the database
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"""
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for collection_name, collection_fixtures in fixtures.iteritems():
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collection = db[collection_name]
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for fixture in collection_fixtures:
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collection.insert(fixture)
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def assert_db_meets_expected(db, expected):
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"""
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Assert a database contains the things we expect it to.
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Objects are found via '_id', so you should make sure your document
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has an _id.
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Args:
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- db: pymongo or mongokit database connection
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- expected: the data we expect. Formatted like:
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{'collection_name': [
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{'_id': 'foo',
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'some_field': 'some_value'},]}
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"""
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for collection_name, collection_data in expected.iteritems():
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collection = db[collection_name]
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for expected_document in collection_data:
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document = collection.find_one({'_id': expected_document['_id']})
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assert document is not None # make sure it exists
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assert document == expected_document # make sure it matches
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