feat: add session expiry warning

backend/workflows/tests/test_session_warning.py

@@ -0,0 +1,49 @@
+from django.contrib.auth import get_user_model
+from django.test import Client, TestCase
+from django.test.utils import override_settings
+
+
+TEST_STORAGES = {
+    'default': {
+        'BACKEND': 'django.core.files.storage.FileSystemStorage',
+    },
+    'staticfiles': {
+        'BACKEND': 'django.contrib.staticfiles.storage.StaticFilesStorage',
+    },
+}
+
+
+@override_settings(STORAGES=TEST_STORAGES)
+class SessionWarningTests(TestCase):
+    def setUp(self):
+        self.user = get_user_model().objects.create_user(
+            username='session-user',
+            email='session@example.com',
+            password='secret-12345',
+        )
+
+    def test_base_shell_exposes_session_warning_config(self):
+        client = Client(HTTP_HOST='localhost')
+        client.force_login(self.user)
+
+        response = client.get('/')
+
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, 'WorkdockSessionConfig')
+        self.assertContains(response, '/session/keepalive/')
+        self.assertContains(response, 'Ihre Sitzung läuft bald ab')
+
+    def test_keepalive_refreshes_session_timestamps(self):
+        client = Client(HTTP_HOST='localhost')
+        client.force_login(self.user)
+        session = client.session
+        session['last_activity_ts'] = 1
+        session['auth_fresh_ts'] = 1
+        session.save()
+
+        response = client.post('/session/keepalive/', {}, HTTP_HOST='localhost')
+
+        self.assertEqual(response.status_code, 200)
+        session = client.session
+        self.assertGreater(session['last_activity_ts'], 1)
+        self.assertGreater(session['auth_fresh_ts'], 1)