[Debug] (config) Print log message about file tree.

Author: Chisanan232

.github/workflows/organize_and_generate_test_cov_reports.yaml

@@ -58,7 +58,10 @@ jobs:
 
       - name: Combine all testing code coverage result files with all test types
         if: ${{ inputs.test_type == 'all-test' }}
-        run: coverage combine --data-file=.coverage.${{ inputs.test_type }} .coverage.*
+        run: |
+          pwd
+          ls -la
+          coverage combine --data-file=.coverage.${{ inputs.test_type }} .coverage.*
 
       - name: Report testing coverage of project code
         run: coverage report -m --data-file=.coverage.${{ inputs.test_type }}