Add pragma: no cover

singer_sdk/contrib/filesystem/stream.py

@@ -59,7 +59,7 @@ def __init__(
         Raises:
             ConfigValidationError: If no file paths are provided.
         """
-        if not filepaths:
+        if not filepaths:  # pragma: no cover
             msg = "Configuration error"
             raise ConfigValidationError(msg, errors=["No file paths provided"])