import subprocess import sys from pathlib import Path import pytest skip_windows = pytest.mark.skipif( sys.platform == "win32", reason="Syntax not supported on Windows" ) @skip_windows def test_deadlock(): """Regression test for https://github.com/Textualize/textual/issues/4643""" app_path = (Path(__file__) / "../deadlock.py").resolve().absolute() result = subprocess.run( f'echo q | "{sys.executable}" "{app_path}"', shell=True, capture_output=True ) print(result.stdout) print(result.stderr) assert result.returncode == 0