Improve test robustness based on code review feedback

Co-authored-by: zkoppert <6935431+zkoppert@users.noreply.github.com>

Author: Copilot

test_measure_innersource.py

@@ -144,7 +144,7 @@ def test_main_missing_user_in_org_chart(tmp_path, monkeypatch, caplog):
             # Verify that the function returned early (didn't process further)
             # by checking that subsequent info logs were not called
             info_calls = [call[0][0] for call in
-                          mock_logger.info.call_args_list]
+                          mock_logger.info.call_args_list if call[0]]
 
             # Should have logged about reading org data and analyzing first
             # commit, but should NOT have logged about original commit author
@@ -154,5 +154,6 @@ def test_main_missing_user_in_org_chart(tmp_path, monkeypatch, caplog):
 
             # Should NOT contain the log message about
             # "Original commit author: X, with manager: Y"
-            assert not any("Original commit author:" in msg and
-                           "with manager:" in msg for msg in info_calls)
+            assert not any(isinstance(msg, str) and "Original commit author:" 
+                           in msg and "with manager:" in msg for msg in 
+                           info_calls)