Fix: eliminate compilaton error due to the #define private public macro in all unittests

[kirk0830]

Reminder

• Have you linked an issue with this pull request?
• Have you added adequate unit tests and/or case tests for your pull request?
• Have you noticed possible changes of behavior below or in the linked issue?
• Have you explained the changes of codes in core modules of ESolver, HSolver, ElecState, Hamilt, Operator or Psi? (ignore if not applicable)

Linked Issue

Fix #4673

Unit Tests and/or Case Tests for my changes

• A unit test is added for each new feature or bug fix.

What's changed?

• enclose the #define private public and #define protected public with #undef private and #undef protected.
• eliminate the impact of #define private public on gtest and gmock
• remove unnecessary inclusion of header <sstream> which is known to cause compilation crash with #define private public-like macro

Any changes of core modules? (ignore if not applicable)

• Example: I have added a new virtual function in the esolver base class in order to ...

[AsTonyshment]

It seems there are still some issues with the compilation...

[AsTonyshment]

Based on my local experiments, it is necessary to move all

#include "gmock/gmock.h" 
#include "gtest/gtest.h" 

statements before #define private public. This way, the compilation can succeed. @Cstandardlib Maybe you can have a try.

[Cstandardlib]

I tested on my machine with oneAPI 2024.2 and encountered many similar errors in tests:

It seems to be a systemic problem.
What they all have in common is the use of macros like #define private public. Seems that Access specifiers defined before gtest header is included will violate inner definition of gtest.

[AsTonyshment]

@Cstandardlib So I mean you have to deal with all these files, and move #define private public backwards.

[AsTonyshment]

Compilation succeed! LGTM.😀

[Cstandardlib]

Build passing😆Thanks！