🐛 | Fix SonarQube dead code and improve coverage

discord_rpc.py

@@ -116,7 +116,7 @@ class DiscordRPC:
             log.warning("Discord not running – RPC unavailable")
             self._connected = False
             return False
-        except (OSError, RuntimeError, DiscordNotFound) as exc:
+        except (OSError, RuntimeError) as exc:
             log.debug("Discord RPC connect failed: %s", exc)
             self._connected = False
             return False

gui.py

@@ -168,7 +168,7 @@ def _load_thumbnail(video_id: str, thumb_url: str,
     nam = _get_thumbnail_nam()
     reply = nam.get(QNetworkRequest(QUrl(thumb_url)))
 
-    def _on_downloaded(reply=reply, nam=nam, cache_path=cache_path,
+    def _on_downloaded(reply=reply, cache_path=cache_path,
                           art_label=art_label, size=size,
                           style_pass=style_pass, style_fail=style_fail,
                           video_id=video_id):

tests/test_discord_rpc.py

@@ -161,11 +161,11 @@ class TestDiscordRPC:
         # If we get here without exception the test passes
 
     @mock.patch("discord_rpc.Presence")
-    def test_connect_failure_graceful(self, mock_presence_cls):
-        """When Discord is not running, connect failure is handled gracefully."""
-        from discord_rpc import DiscordRPC
+    def test_connect_discord_not_found(self, mock_presence_cls):
+        """When Discord is not running, DiscordNotFound is caught (covers lines 116-118)."""
+        from discord_rpc import DiscordRPC, DiscordNotFound
         mock_instance = mock.MagicMock()
-        mock_instance.connect.side_effect = Exception("Discord not found")
+        mock_instance.connect.side_effect = DiscordNotFound()
         mock_presence_cls.return_value = mock_instance
 
         drpc = DiscordRPC(client_id="test")
@@ -231,3 +231,49 @@ class TestDiscordRPC:
         # Should not crash
         drpc._send_presence()
         assert True
+
+    def test_connect_oserror_handled(self):
+        """_connect handles OSError gracefully (covers lines 119-122)."""
+        with mock.patch("discord_rpc.Presence") as mock_presence_cls:
+            mock_instance = mock.MagicMock()
+            mock_instance.connect.side_effect = OSError("Connection refused")
+            mock_presence_cls.return_value = mock_instance
+
+            from discord_rpc import DiscordRPC
+            drpc = DiscordRPC(client_id="test")
+            result = drpc._connect()
+            assert result is False
+            assert drpc._connected is False
+
+    def test_connect_runtimeerror_handled(self):
+        """_connect handles RuntimeError gracefully (covers lines 119-122)."""
+        with mock.patch("discord_rpc.Presence") as mock_presence_cls:
+            mock_instance = mock.MagicMock()
+            mock_instance.connect.side_effect = RuntimeError("pipe error")
+            mock_presence_cls.return_value = mock_instance
+
+            from discord_rpc import DiscordRPC
+            drpc = DiscordRPC(client_id="test")
+            result = drpc._connect()
+            assert result is False
+            assert drpc._connected is False
+
+    def test_run_reconnects_on_failure(self):
+        """_run loop retries connection when _connect fails (covers lines 174-175)."""
+        with mock.patch("discord_rpc.Presence") as mock_presence_cls:
+            mock_instance = mock.MagicMock()
+            mock_instance.connect.side_effect = OSError("no discord")
+            mock_presence_cls.return_value = mock_instance
+
+            from discord_rpc import DiscordRPC
+            drpc = DiscordRPC(client_id="test")
+            # Start _run in a background thread so we can signal stop
+            # from the main thread while _run blocks on wait().
+            import threading
+            t = threading.Thread(target=drpc._run, daemon=True)
+            t.start()
+            time.sleep(0.1)  # let _connect fail and enter wait(10)
+            drpc._stop_event.set()  # unblock wait() so _run can exit
+            t.join(timeout=2)
+            assert drpc._connected is False
+            assert drpc._rpc is None