Collecting rename metrics for nested folders

[anushka567]

Description

Made changes to existing functions to collected and accumulate metrics for nested folders as well.Previously, we had code which collected metrics related to rename operation for single level folders i.e.

folder/
            file1.txt
            file2.txt
            ...
            file100.txt

Thus, metrics reported for these folders were in the form of average/min/max etc. time taken for each folder level rename operation.

Since, hns atomic rename is especially crucial in nested folder rename scenario , hence we do perf tests on simple nested scenario i.e.

top_level_folder/
                            folder1/
                                        file1.txt
                                        file2.txt
                                        ...
                                        file100.txt
                            folder2/
                                        file1.txt
                                        file2.txt
                                        ...
                                        file100.txt

Here we report the time of rename operation for renaming top_level_folder to top_level_folder_renamed so that we can observe performance comparison in cases where implicit-dirs are involved.

Link to the issue in case of a bug fix.

NA

Testing details

1. Manual - Tested the script to check for correct metric aggregation and upload to gsheet
2. Unit tests - Added nested folder scenario for all existing unit tests.Also, added unit test for the common functions related to gsheet upload.
3. Integration tests - NA

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.04%. Comparing base (6677f9c) to head (9ed0fcb).
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2370      +/-   ##
==========================================
- Coverage   79.07%   79.04%   -0.03%     
==========================================
  Files         106      106              
  Lines       11578    11578              
==========================================
- Hits         9155     9152       -3     
- Misses       1956     1958       +2     
- Partials      467      468       +1     

Flag	Coverage Δ
unittests	79.04% <ø> (-0.03%)	⬇️

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