Add comprehensive Pytest unit test suite and increase coverage after master sync for MAIA toolkit

[Copilot]

• Run pytest tests/test_* --cov=MAIA --cov=MAIA_scripts to identify lowest-covered areas
• Add focused unit tests for uncovered helper paths in low-coverage modules
• Run targeted pytest for new test files
• Re-run full requested coverage command and lint test files
• Commit and push coverage improvements

Original prompt

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This section details on the original issue you should resolve

<issue_title>Create UnitTests with Pytest for all classes, functions, and scripts under MAIA/ and MAIA_scripts</issue_title>
<issue_description>## Objective
Develop comprehensive unit tests using Pytest for all classes, functions, and scripts located in both the MAIA/ and MAIA_scripts/ directories.

Tasks

• Identify all classes and functions in MAIA/ and MAIA_scripts/
• Write Pytest-based unit tests for each class and function
• Ensure coverage for edge cases and expected failures
• Add tests for the main execution paths within scripts
• Document all tests clearly

Acceptance Criteria

• All code in MAIA/ and MAIA_scripts/ is covered by Pytest unit tests
• Tests are easy to run locally and in CI
• Tests can be executed with pytest
• PR includes documentation or comments for new tests

Additional Notes

• Use best practices for Pytest structure and assertions
• If any functionality is hard to test, document the reasons
  </issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #75

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📚 Documentation preview 📚: https://MAIA--77.org.readthedocs.build/en/77/

[SimoneBendazzoli93]

@copilot pull again from master and recheck the pytests for new function classes

[Copilot]

@copilot pull again from master and recheck the pytests for new function classes

Done. I pulled/rebased against the latest master, rechecked tests for newly added functions/classes, updated parser tests to match current CLI signatures, and added new coverage in tests/test_new_function_classes.py for new modules/scripts from master. Addressed in commit a25615b.

[SimoneBendazzoli93]

@copilot Recheck all other previously created tests ( for example maia_core maia_admin and maia_fn) since the code has significantly changed. Also run lint for tests

[SimoneBendazzoli93]

@copilot add more tests or integrate the existing one to increase the pytest coverage

[Copilot]

@copilot add more tests or integrate the existing one to increase the pytest coverage

Added more coverage by integrating new tests for MAIA_scripts/MAIA_deploy_project.py helpers and extending tests/test_keycloak_utils.py with additional helper-path tests. Verified with python -m pytest tests/test_*.py -q (143 passed) and python -m flake8 tests/conftest.py tests/test_*.py (clean). Addressed in commit 628ee3f.