tests: rewrite scoped JSON fixture (#54008)

We override django_db_setup as a package scoped fixture to share the
loading of the big JSON fixture between tests.

tests/base/conftest.py

@@ -0,0 +1,40 @@
+# barbacompta - invoicing for dummies
+# Copyright (C) 2019-2020 Entr'ouvert
+#
+# 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 <http://www.gnu.org/licenses/>.
+
+import pytest
+
+from django.core.management import call_command
+
+from django.contrib.auth.models import User
+
+
+DATA = ["tests/fixture.json"]
+
+
+@pytest.fixture(scope="package")
+def django_db_setup(django_db_setup, django_db_blocker):
+    print('django_db_setup start')
+    with django_db_blocker.unblock():
+        for data in DATA:
+            call_command("loaddata", data)
+        admin, created = User.objects.update_or_create(
+            username="admin",
+            defaults=dict(email="admin@example.com", is_superuser=True, is_staff=True),
+        )
+        admin.set_password("admin")
+        admin.save()
+    yield
+    print('django_db_setup stop')

tests/base/test_api.py

@@ -14,17 +14,10 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-import pytest
-
 from eo_gestion.eo_facture.models import Contrat
 from taggit.models import Tag
 
 
-@pytest.fixture
-def db(base_db):
-    yield
-
-
 def test_references(app):
     gru = Tag.objects.create(name='GRU')
     gi = Tag.objects.create(name='Gestion d\'identité')

tests/base/test_homepage.py

@@ -14,13 +14,6 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-import pytest
-
-
-@pytest.fixture
-def db(base_db):
-    yield
-
 
 def test_homepage(app):
     response = app.get("/").follow()

tests/conftest.py

@@ -18,32 +18,6 @@ import pytest
 
 import django_webtest
 
-from django.core.management import call_command
-from django.db import transaction
-
-from django.contrib.auth.models import User
-
-
-DATA = ["tests/fixture.json"]
-
-
-@pytest.fixture(scope="session")
-def base_db(django_db_setup, django_db_blocker):
-    with django_db_blocker.unblock():
-        with transaction.atomic():
-            try:
-                for data in DATA:
-                    call_command("loaddata", data)
-                admin, created = User.objects.update_or_create(
-                    username="admin",
-                    defaults=dict(email="admin@example.com", is_superuser=True, is_staff=True),
-                )
-                admin.set_password("admin")
-                admin.save()
-                yield
-            finally:
-                transaction.set_rollback(True)
-
 
 @pytest.fixture
 def app(db, freezer):