test: 100% coverage

ref: N25B-393

src/robot_interface/endpoints/video_sender.py

@@ -68,10 +68,10 @@ class VideoSender(SocketBase):
                         height_bytes = struct.pack('<I', height)
 
                         self.socket.send_multipart([width_bytes, height_bytes, raw_data])
-                except:
-                    logging.warn("Failed to retrieve video image from robot.")
                 except KeyboardInterrupt:
                     logging.info("Video receiving loop interrupted by user.")
+                except:
+                    logging.warn("Failed to retrieve video image from robot.")
         finally:
             vid_service.unsubscribe(vid_stream_name)
             logging.info("Unsubscribed from video stream.")

test/unit/test_video_sender.py

@@ -104,3 +104,24 @@ def test_video_receive_error(zmq_context, mocker):
     sender.video_rcv_loop(mock_video_service, "stream_name")
 
     send_socket.assert_not_called()
+
+def test_video_loop_keyboard_interrupt(zmq_context, mocker):
+    """Video loop should handle KeyboardInterrupt gracefully and unsubscribe."""
+    _patch_basics(mocker)
+    _patch_exit_event(mocker)
+    
+    # We mock the video service to raise KeyboardInterrupt when accessed
+    mock_video_service = mock.Mock()
+    mock_video_service.getImageRemote.side_effect = KeyboardInterrupt
+    
+    # Mock logging to verify the specific interrupt message is logged
+    mock_logger = mocker.patch("robot_interface.endpoints.video_sender.logging")
+
+    sender = VideoSender(zmq_context)
+    
+    # Execute the loop
+    sender.video_rcv_loop(mock_video_service, "stream_name")
+
+    # Verify the 'finally' block executed (unsubscribe)
+    mock_video_service.unsubscribe.assert_called_with("stream_name")
+    mock_logger.info.assert_any_call("Unsubscribed from video stream.")