Pytest cant run when X server is not running (Pynput import problem)

[Edios]

          Problem with pytest:

Cant run tests without X server. Need to mock pynput KeyCode obj.

`Run conda install pytest
Collecting package metadata (current_repodata.json): ...working... done
Solving environment: ...working... done

All requested packages already installed.

ImportError while loading conftest '/home/runner/work/t9keyboard/t9keyboard/tests/conftest.py'.
tests/conftest.py:6: in
from pynput.keyboard import KeyCode
/usr/share/miniconda/lib/python3.10/site-packages/pynput/init.py:40: in
from . import keyboard
/usr/share/miniconda/lib/python3.10/site-packages/pynput/keyboard/init.py:31: in
backend = backend(name)
/usr/share/miniconda/lib/python3.10/site-packages/pynput/_util/init.py:76: in backend
raise ImportError('this platform is not supported: {}'.format(
E ImportError: this platform is not supported: ('failed to acquire X connection: Can't connect to display ":0.0": [Errno 111] Connection refused', DisplayConnectionError(':0.0', '[Errno 111] Connection refused'))
E
E Try one of the following resolutions:
E
E * Please make sure that you have an X server running, and that the DISPLAY environment variable is set correctly
Error: Process completed with exit code 4.`

Originally posted by @Edios in #21 (comment)