[bug] fix ut TestAddressManager

[volgariver6]

What type of PR is this?

• API-change
• BUG
• Improvement
• Documentation
• Feature
• Test and CI
• Code Refactoring

Which issue(s) this PR fixes:

issue #15759

What this PR does / why we need it:

fix ut TestAddressManager

[matrix-meow]

@volgariver6 Thanks for your contributions!

Pull Request Review:

Title:

The title of the pull request indicates that it is fixing a bug related to the TestAddressManager.

Body:

The body of the pull request specifies that it is a bug fix related to issue #15759 and it addresses the TestAddressManager.

Changes:

1. In pkg/proxy/handler.go, the changes include adding logging for connection ID and session ID.
2. In pkg/util/address/address.go, the Register method signature is changed to return an int and modified to return a value and handle potential errors.
3. In pkg/util/address/address_test.go, adjustments are made to the test cases to accommodate the changes in the Register method.

Feedback and Suggestions for Improvement:

1. pkg/proxy/handler.go:

   • The addition of logging for connection ID and session ID seems appropriate and does not raise any immediate concerns.
   • It would be beneficial to ensure that the logging of sensitive information like connection IDs is necessary and does not expose any security risks.

2. pkg/util/address/address.go:

   • The change in the Register method signature to return an int is a significant modification. It is essential to ensure that this change aligns with the overall design and requirements of the codebase.
   • The Register method now returns an int value, which seems to represent the port number. It is crucial to document this change and its implications clearly.
   • The error handling in the Register method is improved by returning an error value. However, it is advisable to handle errors more explicitly and provide meaningful error messages or logging.
   • The use of defer to close the listener is good practice, but it should be enhanced by checking if the listener is not nil before attempting to close it to avoid potential runtime errors.

3. pkg/util/address/address_test.go:

   • The adjustments in the test cases to accommodate the changes in the Register method are appropriate.
   • The test cases now validate the behavior of the Register method more thoroughly by checking the returned port numbers and ensuring correct address generation.
   • It would be beneficial to include additional test cases to cover edge cases and error scenarios, especially related to the error handling in the Register method.

Overall Suggestions for Optimization:

1. Documentation:

   • Enhance the code comments and documentation to explain the changes made in the Register method and its impact on the codebase.
   • Document the purpose of logging connection ID and session ID in the pkg/proxy/handler.go file.

2. Error Handling:

   • Improve error handling by providing more descriptive error messages and handling potential errors more robustly, especially in network operations like listening for connections.

3. Security Considerations:

   • Review the logging of sensitive information like connection IDs to ensure it does not pose any security risks, especially in production environments.

4. Testing:

   • Expand test coverage to include edge cases, error scenarios, and boundary conditions to validate the behavior of the Register method thoroughly.

By addressing these points, the pull request can be optimized for improved code quality, maintainability, and security.