perf(organizations): cache and instrument API responses

tests/apps/organizations/test_tasks.py

@@ -6,6 +6,7 @@ from django.apps import apps as django_apps
 from django.core.cache import cache
 from django.test import TestCase
 from django_celery_beat.models import PeriodicTask
+from organizations.cache import get_organization_api_cache_version
 from organizations.models import Organization
 from organizations.tasks import refresh_all_organization_data_snapshots
 
@@ -15,7 +16,7 @@ from tests.apps.parsers.factories import IndustrialCertificateRecordFactory
 class OrganizationSnapshotTasksTest(TestCase):
     """Checks Celery tasks that maintain API v2 organization snapshots."""
 
-    def test_refresh_all_task_rebuilds_snapshots_and_clears_api_cache(self):
+    def test_refresh_all_task_rebuilds_snapshots_and_invalidates_api_cache(self):
         organization = Organization.objects.create(
             name='ООО "Снапшот"',
             inn="7800000401",
@@ -26,14 +27,19 @@ class OrganizationSnapshotTasksTest(TestCase):
             ogrn=organization.ogrn,
             certificate_number="FULL-SNAPSHOT-CERT",
         )
-        cache.set("api:v2:organizations:test", {"stale": True}, timeout=60)
+        cache.set("unrelated:test", {"keep": True}, timeout=60)
+        cache_version_before = get_organization_api_cache_version()
 
         result = refresh_all_organization_data_snapshots(batch_size=10)
 
         self.assertEqual(result["processed"], 1)
         self.assertEqual(result["created"], 1)
         self.assertEqual(result["updated"], 0)
-        self.assertIsNone(cache.get("api:v2:organizations:test"))
+        self.assertNotEqual(
+            get_organization_api_cache_version(),
+            cache_version_before,
+        )
+        self.assertEqual(cache.get("unrelated:test"), {"keep": True})
         snapshot = organization.data_snapshot
         self.assertEqual(
             snapshot.data["industrial"][0]["certificate_number"],