Capture exceptions in send_msg calls

freqtrade/rpc/rpc_manager.py

@@ -78,6 +78,8 @@ class RPCManager:
                 mod.send_msg(msg)
             except NotImplementedError:
                 logger.error(f"Message type '{msg['type']}' not implemented by handler {mod.name}.")
+            except Exception:
+                logger.exception('Exception occurred within RPC module %s', mod.name)
 
     def process_msg_queue(self, queue: deque) -> None:
         """

tests/rpc/test_rpc_manager.py

@@ -82,6 +82,21 @@ def test_send_msg_telegram_disabled(mocker, default_conf, caplog) -> None:
     assert telegram_mock.call_count == 0
 
 
+def test_send_msg_telegram_error(mocker, default_conf, caplog) -> None:
+    mocker.patch('freqtrade.rpc.telegram.Telegram._init', MagicMock())
+    mocker.patch('freqtrade.rpc.telegram.Telegram.send_msg', side_effect=ValueError())
+
+    freqtradebot = get_patched_freqtradebot(mocker, default_conf)
+    rpc_manager = RPCManager(freqtradebot)
+    rpc_manager.send_msg({
+        'type': RPCMessageType.STATUS,
+        'status': 'test'
+    })
+
+    assert log_has("Sending rpc message: {'type': status, 'status': 'test'}", caplog)
+    assert log_has("Exception occurred within RPC module telegram", caplog)
+
+
 def test_process_msg_queue(mocker, default_conf, caplog) -> None:
     telegram_mock = mocker.patch('freqtrade.rpc.telegram.Telegram.send_msg')
     mocker.patch('freqtrade.rpc.telegram.Telegram._init')