Fixes #11 Mock file operations Tests

[ShirshenduR]

Description

This pull request addresses issue #11 by adding tests for the add_or_update_normal_file function in twinTrim/dataStructures/fileMetadata.py. The objective is to mock file operations, such as file access, to simulate various file system behaviors, including scenarios where files exist and do not. This ensures that the function behaves as expected without relying on the actual file system, thus improving test reliability and speed.

• Fixes Mock File Operations in add_or_update_normal_file #11

Type of change

• Implemented mocking for file access in the tests using pytest to simulate different file scenarios.
• Created specific test cases that cover:
  • Adding a new file when it does not exist in the normalStore.
  • Updating existing file metadata when a file already exists.
• Verified that the function handles these cases correctly without performing actual file operations.

These changes enhance the test suite's coverage and ensure that the add_or_update_normal_file function is robust against various file system states.

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• New and existing unit tests pass locally with my changes
• I have maintained a clean commit history by using the necessary Git commands
• I have checked that my code does not cause any merge conflicts

Screenshots (if applicable)

[ShirshenduR]

@techy4shri @Kota-Karthik please review

[Kota-Karthik]

@ShirshenduR LGTM!
but can you just add a screenshot showing that all tests work fine !

[ShirshenduR]

Please check the screenshot below @Kota-Karthik

[Kota-Karthik]

LGTM!
@ShirshenduR