Construct necessary tests for PathPreservation feature

Construct tests for the features merged as part of [commit #1784](https://github.com/0chain/gosdk/pull/1784)

The rclone_zus features are dependent on this feature hence we need mandatory tests to ensure that this does not break upstream

- It should accept when no flags are given
- Flag if given is properly parsed

In addition to these functionalities, we can have other tests as required

Examine commit #1784 to understand the PathPreservation feature. Look for existing test files in the repository to see the testing patterns. Write tests that verify the flag parsing behavior and default acceptance. Ensure tests are integrated into the project's test suite and run them to confirm they pass.

Vom Indexierungsmodell aus dem Issue-Text verfasst.