Add return self to __enter__ and clean up test code

Co-authored-by: bittner <[email protected]>

Author: Copilot

cli_test_helpers/decorators.py

@@ -36,6 +36,7 @@ def __enter__(self):
         sys.argv = self.args
         self._old_handlers = logging.root.handlers[:]
         logging.root.handlers.clear()
+        return self
 
     def __exit__(self, exc_type, exc_val, exc_tb):
         sys.argv = self._old

tests/test_decorators.py

@@ -57,7 +57,6 @@ def test_argv_context_logging_isolation():
                 logging.basicConfig(
                     filename=str(logfile),
                     level=logging.INFO,
-                    force=False,  # Should work without force since handlers are cleared
                 )
 
                 # Log a message