New locking mechanism (#2408)

Co-authored-by: Richard Schreiber <schreiber@rami.io>

src/tests/concurrency_tests/conftest.py

@@ -0,0 +1,144 @@
+#
+# This file is part of pretix (Community Edition).
+#
+# Copyright (C) 2014-2020 Raphael Michel and contributors
+# Copyright (C) 2020-2021 rami.io GmbH and contributors
+#
+# 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 in version 3 of the License.
+#
+# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
+# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
+# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
+# this file, see <https://pretix.eu/about/en/license>.
+#
+# 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/>.
+#
+from datetime import datetime, timedelta
+
+import aiohttp
+import pytest
+import pytest_asyncio
+from django.utils.timezone import now
+from django_scopes import scopes_disabled
+from pytz import UTC
+
+from pretix.base.models import (
+    Device, Event, Item, Organizer, Quota, SeatingPlan,
+)
+from pretix.base.models.devices import generate_api_token
+
+
+@pytest.fixture(autouse=True)
+def autoskip(request, settings):
+    if 'sqlite3' in settings.DATABASES['default']['ENGINE']:
+        pytest.skip("cannot be run on sqlite")
+    if not request.config.getvalue("reuse_db"):
+        pytest.skip("only works with --reuse-db due to some weird connection handling bug")
+
+
+@pytest.fixture
+@scopes_disabled()
+def organizer():
+    return Organizer.objects.create(name='Dummy', slug='dummy')
+
+
+@pytest.fixture
+@scopes_disabled()
+def event(organizer):
+    e = Event.objects.create(
+        organizer=organizer, name='Dummy', slug='dummy',
+        date_from=datetime(2017, 12, 27, 10, 0, 0, tzinfo=UTC),
+        presale_end=now() + timedelta(days=300),
+        plugins='pretix.plugins.banktransfer,pretix.plugins.ticketoutputpdf',
+        is_public=True, live=True
+    )
+    e.item_meta_properties.create(name="day", default="Monday")
+    e.settings.timezone = 'Europe/Berlin'
+    e.settings.payment_banktransfer__enabled = True
+    return e
+
+
+@pytest.fixture
+@scopes_disabled()
+def item(event):
+    return Item.objects.create(
+        event=event,
+        name='Regular ticket',
+        default_price=0,
+    )
+
+
+@pytest.fixture
+@scopes_disabled()
+def quota(event, item):
+    q = Quota.objects.create(
+        event=event,
+        size=10,
+        name='Regular tickets'
+    )
+    q.items.add(item)
+    return q
+
+
+@pytest.fixture
+@scopes_disabled()
+def voucher(event, item):
+    return event.vouchers.create(code="Foo", max_usages=1)
+
+
+@pytest.fixture
+@scopes_disabled()
+def membership_type(event):
+    return event.organizer.membership_types.create(name="foo", allow_parallel_usage=False)
+
+
+@pytest.fixture
+@scopes_disabled()
+def customer(event, membership_type):
+    return event.organizer.customers.create(email="admin@localhost", is_active=True, is_verified=True)
+
+
+@pytest.fixture
+@scopes_disabled()
+def membership(event, membership_type, customer):
+    return customer.memberships.create(
+        membership_type=membership_type,
+        date_start=datetime(2017, 1, 1, 0, 0, tzinfo=UTC),
+        date_end=datetime(2099, 1, 1, 0, 0, tzinfo=UTC),
+    )
+
+
+@pytest.fixture
+@scopes_disabled()
+def seat(event, organizer, item):
+    SeatingPlan.objects.create(
+        name="Plan", organizer=organizer, layout="{}"
+    )
+    event.seat_category_mappings.create(
+        layout_category='Stalls', product=item
+    )
+    return event.seats.create(seat_number="A1", product=item, seat_guid="A1")
+
+
+@pytest.fixture
+@scopes_disabled()
+def device(organizer):
+    return Device.objects.create(
+        organizer=organizer,
+        all_events=True,
+        name='Foo',
+        initialized=now(),
+        api_token=generate_api_token()
+    )
+
+
+@pytest_asyncio.fixture
+async def session(live_server, event):
+    async with aiohttp.ClientSession() as session:
+        yield session