MAHOUT-826 Add pytest configuration for QDP tests and custom markers

[ryankert01]

Purpose of PR

• Introduced conftest.py for root pytest configuration.
• Added custom markers for GPU and slow tests.
• Implemented auto-skip logic for tests requiring the QDP extension.

How to test

Test with a @pytest.mark.gpu decorated test

echo '                                                                                                                                  
import pytest                                                                                                                           
                                                                                                                                        
@pytest.mark.gpu                                                                                                                        
def test_gpu_skipped():                                                                                                                 
    from _qdp import QdpEngine                                                                                                          
    assert QdpEngine(0)                                                                                                                 
                                                                                                                                        
def test_normal():                                                                                                                      
    assert True                                                                                                                         
' > testing/test_gpu_demo.py                                                                                                            

uv run pytest testing/test_gpu_demo.py -v 

Related Issues or PRs

Closes #826

Changes Made

• Bug fix
• New feature
• Refactoring
• Documentation
• Test
• CI/CD pipeline
• Other

Breaking Changes

• Yes
• No

Checklist

• Added or updated unit tests for all changes
• Added or updated documentation for all changes
• Successfully built and ran all unit tests or manual tests locally
• PR title follows "MAHOUT-XXX: Brief Description" format (if related to an issue)
• Code follows ASF guidelines

[viiccwen]

does it mean qdp/qdp-python/tests?

[viiccwen]

oh, I saw it in #828 : )

[ryankert01]

Thanks for reading the issue!
Exactly, that’s why we change to testing folder: To align with original mahout design.