feat: harden video analysis and runtime resilience

tests/unit/test_controller_factory.py

@@ -0,0 +1,34 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from unittest.mock import MagicMock, patch
+
+from artemis.context import ArtemisContext
+from artemis.controllers.controller_factory import get_controller
+from artemis.controllers.unified_controller import UnifiedMobileController
+
+
+def test_get_controller_reuses_context_scoped_controller():
+    ctx = MagicMock(spec=ArtemisContext)
+    ctx._mobile_controller = None
+    controller = object.__new__(UnifiedMobileController)
+
+    with patch(
+        "artemis.controllers.controller_factory.create_device_controller",
+        return_value=controller,
+    ) as create:
+        assert get_controller(ctx) is controller
+        assert get_controller(ctx) is controller
+
+    create.assert_called_once_with(ctx)