Add more unit tests for WhereSegmentBinder

[strongduanmu]

Hi community,

This issue is for #28487.

Aim

Add more unit tests for WhereSegmentBinder to test its public functions to improve unit test coverage.

Unit test coverage can be viewed at: https://app.codecov.io/gh/apache/shardingsphere

Basic Qualifications

• Java
• Maven
• Junit

[github-actions]

There hasn't been any activity on this issue recently, and in order to prioritize active issues, it will be marked as stale.

[grushad]

hi @strongduanmu can i take this one up? although github-actions bot marked this as stale, this still needs to be worked on right?

[HarshSawarkar]

Hi @strongduanmu I have created a PR for this issue.Can you please review it? Here's the link to my PR #29111

[github-actions]

There hasn't been any activity on this issue recently, and in order to prioritize active issues, it will be marked as stale.

[HarshSawarkar]

Hi @strongduanmu I have raised a new PR for this issue. Could you review it? Here's the link to it #30852