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#!/usr/bin/env python

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# -*- coding: utf-8 -*-

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# This file is part of Beremiz, a Integrated Development Environment for

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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

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#

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# Copyright (C) 2017: Andrey Skvortsov

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#

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# See COPYING file for copyrights details.

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#

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# This program is free software; you can redistribute it and/or

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# modify it under the terms of the GNU General Public License

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# as published by the Free Software Foundation; either version 2

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# of the License, or (at your option) any later version.

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#

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# This program is distributed in the hope that it will be useful,

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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# GNU General Public License for more details.

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#

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# You should have received a copy of the GNU General Public License

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# along with this program; if not, write to the Free Software

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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

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import os

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import sys

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import pytest

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import xvfbwrapper

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# append module root directory to sys.path

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sys.path.append(

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    os.path.abspath(

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        os.path.join(

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            os.path.dirname(__file__), '..', '..')

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    )

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)

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#

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# Something seems to be broken in Beremiz application,

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# because after tests in test_application.py during Xvfb shutdown

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# pytest returns error message:

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# pytest: Fatal IO error 11 (Die Ressource ist zur Zeit nicht verfügbar) on X server :2821.

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#

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# As a result of that pytest returns code 1 as some tests were failed,

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# but they aren't.

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#

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# To avoid this Xvfb is launched and killed not by pytest.

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# $ Xvfb :42 -screen 0 1280x1024x24 &

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# $ export DISPLAY=:42

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# $ pytest --timeout=10 ./tests/tools

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# $ pkill -9 Xvfb

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#

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# TODO: find root of this problem.

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# vdisplay = None

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#

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# @pytest.fixture(scope="session", autouse=True)

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# def start_xvfb_server(request):

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#     global vdisplay

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#     vdisplay = xvfbwrapper.Xvfb(width=1280, height=720)

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#     vdisplay.start()

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#     request.addfinalizer(stop_xvfb_server)

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#

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# def stop_xvfb_server():

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#     if vdisplay is not None:

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#         vdisplay.stop()