Adding simple unit test.

import pytest

from pathlib import Path

from ..config import PyGriffinConfig

def test_griffin_exec_direct():

    config = PyGriffinConfig(griffin_exec='./griffin_mock')

    assert config.griffin_exec == Path('./griffin_mock').absolute()

    assert config.griffin_path == Path('.').absolute()

if __name__ == "__main__":

    pytest.main()

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